blob: aa50b25bfd55581c5197b7bc214bca884f6b667e [file] [log] [blame]
// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// The Google C++ Testing Framework (Google Test)
#include <gtest/gtest.h>
#include <gtest/gtest-spi.h>
#include <ctype.h>
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <wctype.h>
#include <ostream>
#if GTEST_OS_LINUX
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
#define GTEST_HAS_GETTIMEOFDAY_ 1
#include <fcntl.h>
#include <limits.h>
#include <sched.h>
// Declares vsnprintf(). This header is not available on Windows.
#include <strings.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <unistd.h>
#include <string>
#include <vector>
#elif GTEST_OS_SYMBIAN
#define GTEST_HAS_GETTIMEOFDAY_ 1
#include <sys/time.h> // NOLINT
#elif GTEST_OS_ZOS
#define GTEST_HAS_GETTIMEOFDAY_ 1
#include <sys/time.h> // NOLINT
// On z/OS we additionally need strings.h for strcasecmp.
#include <strings.h> // NOLINT
#elif GTEST_OS_WINDOWS_MOBILE // We are on Windows CE.
#include <windows.h> // NOLINT
#elif GTEST_OS_WINDOWS // We are on Windows proper.
#include <io.h> // NOLINT
#include <sys/timeb.h> // NOLINT
#include <sys/types.h> // NOLINT
#include <sys/stat.h> // NOLINT
#if GTEST_OS_WINDOWS_MINGW
// MinGW has gettimeofday() but not _ftime64().
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
// TODO(kenton@google.com): There are other ways to get the time on
// Windows, like GetTickCount() or GetSystemTimeAsFileTime(). MinGW
// supports these. consider using them instead.
#define GTEST_HAS_GETTIMEOFDAY_ 1
#include <sys/time.h> // NOLINT
#endif // GTEST_OS_WINDOWS_MINGW
// cpplint thinks that the header is already included, so we want to
// silence it.
#include <windows.h> // NOLINT
#else
// Assume other platforms have gettimeofday().
// TODO(kenton@google.com): Use autoconf to detect availability of
// gettimeofday().
#define GTEST_HAS_GETTIMEOFDAY_ 1
// cpplint thinks that the header is already included, so we want to
// silence it.
#include <sys/time.h> // NOLINT
#include <unistd.h> // NOLINT
#endif // GTEST_OS_LINUX
#if GTEST_HAS_EXCEPTIONS
#include <stdexcept>
#endif
// Indicates that this translation unit is part of Google Test's
// implementation. It must come before gtest-internal-inl.h is
// included, or there will be a compiler error. This trick is to
// prevent a user from accidentally including gtest-internal-inl.h in
// his code.
#define GTEST_IMPLEMENTATION_ 1
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION_
#if GTEST_OS_WINDOWS
#define vsnprintf _vsnprintf
#endif // GTEST_OS_WINDOWS
namespace testing {
// Constants.
// A test whose test case name or test name matches this filter is
// disabled and not run.
static const char kDisableTestFilter[] = "DISABLED_*:*/DISABLED_*";
// A test case whose name matches this filter is considered a death
// test case and will be run before test cases whose name doesn't
// match this filter.
static const char kDeathTestCaseFilter[] = "*DeathTest:*DeathTest/*";
// A test filter that matches everything.
static const char kUniversalFilter[] = "*";
// The default output file for XML output.
static const char kDefaultOutputFile[] = "test_detail.xml";
// The environment variable name for the test shard index.
static const char kTestShardIndex[] = "GTEST_SHARD_INDEX";
// The environment variable name for the total number of test shards.
static const char kTestTotalShards[] = "GTEST_TOTAL_SHARDS";
// The environment variable name for the test shard status file.
static const char kTestShardStatusFile[] = "GTEST_SHARD_STATUS_FILE";
namespace internal {
// The text used in failure messages to indicate the start of the
// stack trace.
const char kStackTraceMarker[] = "\nStack trace:\n";
// g_help_flag is true iff the --help flag or an equivalent form is
// specified on the command line.
bool g_help_flag = false;
} // namespace internal
GTEST_DEFINE_bool_(
also_run_disabled_tests,
internal::BoolFromGTestEnv("also_run_disabled_tests", false),
"Run disabled tests too, in addition to the tests normally being run.");
GTEST_DEFINE_bool_(
break_on_failure,
internal::BoolFromGTestEnv("break_on_failure", false),
"True iff a failed assertion should be a debugger break-point.");
GTEST_DEFINE_bool_(
catch_exceptions,
internal::BoolFromGTestEnv("catch_exceptions", false),
"True iff " GTEST_NAME_
" should catch exceptions and treat them as test failures.");
GTEST_DEFINE_string_(
color,
internal::StringFromGTestEnv("color", "auto"),
"Whether to use colors in the output. Valid values: yes, no, "
"and auto. 'auto' means to use colors if the output is "
"being sent to a terminal and the TERM environment variable "
"is set to xterm, xterm-color, xterm-256color, linux or cygwin.");
GTEST_DEFINE_string_(
filter,
internal::StringFromGTestEnv("filter", kUniversalFilter),
"A colon-separated list of glob (not regex) patterns "
"for filtering the tests to run, optionally followed by a "
"'-' and a : separated list of negative patterns (tests to "
"exclude). A test is run if it matches one of the positive "
"patterns and does not match any of the negative patterns.");
GTEST_DEFINE_bool_(list_tests, false,
"List all tests without running them.");
GTEST_DEFINE_string_(
output,
internal::StringFromGTestEnv("output", ""),
"A format (currently must be \"xml\"), optionally followed "
"by a colon and an output file name or directory. A directory "
"is indicated by a trailing pathname separator. "
"Examples: \"xml:filename.xml\", \"xml::directoryname/\". "
"If a directory is specified, output files will be created "
"within that directory, with file-names based on the test "
"executable's name and, if necessary, made unique by adding "
"digits.");
GTEST_DEFINE_bool_(
print_time,
internal::BoolFromGTestEnv("print_time", true),
"True iff " GTEST_NAME_
" should display elapsed time in text output.");
GTEST_DEFINE_int32_(
random_seed,
internal::Int32FromGTestEnv("random_seed", 0),
"Random number seed to use when shuffling test orders. Must be in range "
"[1, 99999], or 0 to use a seed based on the current time.");
GTEST_DEFINE_int32_(
repeat,
internal::Int32FromGTestEnv("repeat", 1),
"How many times to repeat each test. Specify a negative number "
"for repeating forever. Useful for shaking out flaky tests.");
GTEST_DEFINE_bool_(
show_internal_stack_frames, false,
"True iff " GTEST_NAME_ " should include internal stack frames when "
"printing test failure stack traces.");
GTEST_DEFINE_bool_(
shuffle,
internal::BoolFromGTestEnv("shuffle", false),
"True iff " GTEST_NAME_
" should randomize tests' order on every run.");
GTEST_DEFINE_int32_(
stack_trace_depth,
internal::Int32FromGTestEnv("stack_trace_depth", kMaxStackTraceDepth),
"The maximum number of stack frames to print when an "
"assertion fails. The valid range is 0 through 100, inclusive.");
GTEST_DEFINE_bool_(
throw_on_failure,
internal::BoolFromGTestEnv("throw_on_failure", false),
"When this flag is specified, a failed assertion will throw an exception "
"if exceptions are enabled or exit the program with a non-zero code "
"otherwise.");
namespace internal {
// Generates a random number from [0, range), using a Linear
// Congruential Generator (LCG). Crashes if 'range' is 0 or greater
// than kMaxRange.
UInt32 Random::Generate(UInt32 range) {
// These constants are the same as are used in glibc's rand(3).
state_ = (1103515245U*state_ + 12345U) % kMaxRange;
GTEST_CHECK_(range > 0)
<< "Cannot generate a number in the range [0, 0).";
GTEST_CHECK_(range <= kMaxRange)
<< "Generation of a number in [0, " << range << ") was requested, "
<< "but this can only generate numbers in [0, " << kMaxRange << ").";
// Converting via modulus introduces a bit of downward bias, but
// it's simple, and a linear congruential generator isn't too good
// to begin with.
return state_ % range;
}
// GTestIsInitialized() returns true iff the user has initialized
// Google Test. Useful for catching the user mistake of not initializing
// Google Test before calling RUN_ALL_TESTS().
//
// A user must call testing::InitGoogleTest() to initialize Google
// Test. g_init_gtest_count is set to the number of times
// InitGoogleTest() has been called. We don't protect this variable
// under a mutex as it is only accessed in the main thread.
int g_init_gtest_count = 0;
static bool GTestIsInitialized() { return g_init_gtest_count != 0; }
// Iterates over a vector of TestCases, keeping a running sum of the
// results of calling a given int-returning method on each.
// Returns the sum.
static int SumOverTestCaseList(const internal::Vector<TestCase*>& case_list,
int (TestCase::*method)() const) {
int sum = 0;
for (int i = 0; i < case_list.size(); i++) {
sum += (case_list.GetElement(i)->*method)();
}
return sum;
}
// Returns true iff the test case passed.
static bool TestCasePassed(const TestCase* test_case) {
return test_case->should_run() && test_case->Passed();
}
// Returns true iff the test case failed.
static bool TestCaseFailed(const TestCase* test_case) {
return test_case->should_run() && test_case->Failed();
}
// Returns true iff test_case contains at least one test that should
// run.
static bool ShouldRunTestCase(const TestCase* test_case) {
return test_case->should_run();
}
// AssertHelper constructor.
AssertHelper::AssertHelper(TestPartResult::Type type,
const char* file,
int line,
const char* message)
: data_(new AssertHelperData(type, file, line, message)) {
}
AssertHelper::~AssertHelper() {
delete data_;
}
// Message assignment, for assertion streaming support.
void AssertHelper::operator=(const Message& message) const {
UnitTest::GetInstance()->
AddTestPartResult(data_->type, data_->file, data_->line,
AppendUserMessage(data_->message, message),
UnitTest::GetInstance()->impl()
->CurrentOsStackTraceExceptTop(1)
// Skips the stack frame for this function itself.
); // NOLINT
}
// Mutex for linked pointers.
Mutex g_linked_ptr_mutex(Mutex::NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX);
// Application pathname gotten in InitGoogleTest.
String g_executable_path;
// Returns the current application's name, removing directory path if that
// is present.
FilePath GetCurrentExecutableName() {
FilePath result;
#if GTEST_OS_WINDOWS
result.Set(FilePath(g_executable_path).RemoveExtension("exe"));
#else
result.Set(FilePath(g_executable_path));
#endif // GTEST_OS_WINDOWS
return result.RemoveDirectoryName();
}
// Functions for processing the gtest_output flag.
// Returns the output format, or "" for normal printed output.
String UnitTestOptions::GetOutputFormat() {
const char* const gtest_output_flag = GTEST_FLAG(output).c_str();
if (gtest_output_flag == NULL) return String("");
const char* const colon = strchr(gtest_output_flag, ':');
return (colon == NULL) ?
String(gtest_output_flag) :
String(gtest_output_flag, colon - gtest_output_flag);
}
// Returns the name of the requested output file, or the default if none
// was explicitly specified.
String UnitTestOptions::GetAbsolutePathToOutputFile() {
const char* const gtest_output_flag = GTEST_FLAG(output).c_str();
if (gtest_output_flag == NULL)
return String("");
const char* const colon = strchr(gtest_output_flag, ':');
if (colon == NULL)
return String(internal::FilePath::ConcatPaths(
internal::FilePath(
UnitTest::GetInstance()->original_working_dir()),
internal::FilePath(kDefaultOutputFile)).ToString() );
internal::FilePath output_name(colon + 1);
if (!output_name.IsAbsolutePath())
// TODO(wan@google.com): on Windows \some\path is not an absolute
// path (as its meaning depends on the current drive), yet the
// following logic for turning it into an absolute path is wrong.
// Fix it.
output_name = internal::FilePath::ConcatPaths(
internal::FilePath(UnitTest::GetInstance()->original_working_dir()),
internal::FilePath(colon + 1));
if (!output_name.IsDirectory())
return output_name.ToString();
internal::FilePath result(internal::FilePath::GenerateUniqueFileName(
output_name, internal::GetCurrentExecutableName(),
GetOutputFormat().c_str()));
return result.ToString();
}
// Returns true iff the wildcard pattern matches the string. The
// first ':' or '\0' character in pattern marks the end of it.
//
// This recursive algorithm isn't very efficient, but is clear and
// works well enough for matching test names, which are short.
bool UnitTestOptions::PatternMatchesString(const char *pattern,
const char *str) {
switch (*pattern) {
case '\0':
case ':': // Either ':' or '\0' marks the end of the pattern.
return *str == '\0';
case '?': // Matches any single character.
return *str != '\0' && PatternMatchesString(pattern + 1, str + 1);
case '*': // Matches any string (possibly empty) of characters.
return (*str != '\0' && PatternMatchesString(pattern, str + 1)) ||
PatternMatchesString(pattern + 1, str);
default: // Non-special character. Matches itself.
return *pattern == *str &&
PatternMatchesString(pattern + 1, str + 1);
}
}
bool UnitTestOptions::MatchesFilter(const String& name, const char* filter) {
const char *cur_pattern = filter;
for (;;) {
if (PatternMatchesString(cur_pattern, name.c_str())) {
return true;
}
// Finds the next pattern in the filter.
cur_pattern = strchr(cur_pattern, ':');
// Returns if no more pattern can be found.
if (cur_pattern == NULL) {
return false;
}
// Skips the pattern separater (the ':' character).
cur_pattern++;
}
}
// TODO(keithray): move String function implementations to gtest-string.cc.
// Returns true iff the user-specified filter matches the test case
// name and the test name.
bool UnitTestOptions::FilterMatchesTest(const String &test_case_name,
const String &test_name) {
const String& full_name = String::Format("%s.%s",
test_case_name.c_str(),
test_name.c_str());
// Split --gtest_filter at '-', if there is one, to separate into
// positive filter and negative filter portions
const char* const p = GTEST_FLAG(filter).c_str();
const char* const dash = strchr(p, '-');
String positive;
String negative;
if (dash == NULL) {
positive = GTEST_FLAG(filter).c_str(); // Whole string is a positive filter
negative = String("");
} else {
positive = String(p, dash - p); // Everything up to the dash
negative = String(dash+1); // Everything after the dash
if (positive.empty()) {
// Treat '-test1' as the same as '*-test1'
positive = kUniversalFilter;
}
}
// A filter is a colon-separated list of patterns. It matches a
// test if any pattern in it matches the test.
return (MatchesFilter(full_name, positive.c_str()) &&
!MatchesFilter(full_name, negative.c_str()));
}
#if GTEST_OS_WINDOWS
// Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the
// given SEH exception, or EXCEPTION_CONTINUE_SEARCH otherwise.
// This function is useful as an __except condition.
int UnitTestOptions::GTestShouldProcessSEH(DWORD exception_code) {
// Google Test should handle an exception if:
// 1. the user wants it to, AND
// 2. this is not a breakpoint exception.
return (GTEST_FLAG(catch_exceptions) &&
exception_code != EXCEPTION_BREAKPOINT) ?
EXCEPTION_EXECUTE_HANDLER :
EXCEPTION_CONTINUE_SEARCH;
}
#endif // GTEST_OS_WINDOWS
} // namespace internal
// The c'tor sets this object as the test part result reporter used by
// Google Test. The 'result' parameter specifies where to report the
// results. Intercepts only failures from the current thread.
ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter(
TestPartResultArray* result)
: intercept_mode_(INTERCEPT_ONLY_CURRENT_THREAD),
result_(result) {
Init();
}
// The c'tor sets this object as the test part result reporter used by
// Google Test. The 'result' parameter specifies where to report the
// results.
ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter(
InterceptMode intercept_mode, TestPartResultArray* result)
: intercept_mode_(intercept_mode),
result_(result) {
Init();
}
void ScopedFakeTestPartResultReporter::Init() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
if (intercept_mode_ == INTERCEPT_ALL_THREADS) {
old_reporter_ = impl->GetGlobalTestPartResultReporter();
impl->SetGlobalTestPartResultReporter(this);
} else {
old_reporter_ = impl->GetTestPartResultReporterForCurrentThread();
impl->SetTestPartResultReporterForCurrentThread(this);
}
}
// The d'tor restores the test part result reporter used by Google Test
// before.
ScopedFakeTestPartResultReporter::~ScopedFakeTestPartResultReporter() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
if (intercept_mode_ == INTERCEPT_ALL_THREADS) {
impl->SetGlobalTestPartResultReporter(old_reporter_);
} else {
impl->SetTestPartResultReporterForCurrentThread(old_reporter_);
}
}
// Increments the test part result count and remembers the result.
// This method is from the TestPartResultReporterInterface interface.
void ScopedFakeTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
result_->Append(result);
}
namespace internal {
// Returns the type ID of ::testing::Test. We should always call this
// instead of GetTypeId< ::testing::Test>() to get the type ID of
// testing::Test. This is to work around a suspected linker bug when
// using Google Test as a framework on Mac OS X. The bug causes
// GetTypeId< ::testing::Test>() to return different values depending
// on whether the call is from the Google Test framework itself or
// from user test code. GetTestTypeId() is guaranteed to always
// return the same value, as it always calls GetTypeId<>() from the
// gtest.cc, which is within the Google Test framework.
TypeId GetTestTypeId() {
return GetTypeId<Test>();
}
// The value of GetTestTypeId() as seen from within the Google Test
// library. This is solely for testing GetTestTypeId().
extern const TypeId kTestTypeIdInGoogleTest = GetTestTypeId();
// This predicate-formatter checks that 'results' contains a test part
// failure of the given type and that the failure message contains the
// given substring.
AssertionResult HasOneFailure(const char* /* results_expr */,
const char* /* type_expr */,
const char* /* substr_expr */,
const TestPartResultArray& results,
TestPartResult::Type type,
const char* substr) {
const String expected(type == TestPartResult::kFatalFailure ?
"1 fatal failure" :
"1 non-fatal failure");
Message msg;
if (results.size() != 1) {
msg << "Expected: " << expected << "\n"
<< " Actual: " << results.size() << " failures";
for (int i = 0; i < results.size(); i++) {
msg << "\n" << results.GetTestPartResult(i);
}
return AssertionFailure(msg);
}
const TestPartResult& r = results.GetTestPartResult(0);
if (r.type() != type) {
msg << "Expected: " << expected << "\n"
<< " Actual:\n"
<< r;
return AssertionFailure(msg);
}
if (strstr(r.message(), substr) == NULL) {
msg << "Expected: " << expected << " containing \""
<< substr << "\"\n"
<< " Actual:\n"
<< r;
return AssertionFailure(msg);
}
return AssertionSuccess();
}
// The constructor of SingleFailureChecker remembers where to look up
// test part results, what type of failure we expect, and what
// substring the failure message should contain.
SingleFailureChecker:: SingleFailureChecker(
const TestPartResultArray* results,
TestPartResult::Type type,
const char* substr)
: results_(results),
type_(type),
substr_(substr) {}
// The destructor of SingleFailureChecker verifies that the given
// TestPartResultArray contains exactly one failure that has the given
// type and contains the given substring. If that's not the case, a
// non-fatal failure will be generated.
SingleFailureChecker::~SingleFailureChecker() {
EXPECT_PRED_FORMAT3(HasOneFailure, *results_, type_, substr_.c_str());
}
DefaultGlobalTestPartResultReporter::DefaultGlobalTestPartResultReporter(
UnitTestImpl* unit_test) : unit_test_(unit_test) {}
void DefaultGlobalTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
unit_test_->current_test_result()->AddTestPartResult(result);
unit_test_->listeners()->repeater()->OnTestPartResult(result);
}
DefaultPerThreadTestPartResultReporter::DefaultPerThreadTestPartResultReporter(
UnitTestImpl* unit_test) : unit_test_(unit_test) {}
void DefaultPerThreadTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
unit_test_->GetGlobalTestPartResultReporter()->ReportTestPartResult(result);
}
// Returns the global test part result reporter.
TestPartResultReporterInterface*
UnitTestImpl::GetGlobalTestPartResultReporter() {
internal::MutexLock lock(&global_test_part_result_reporter_mutex_);
return global_test_part_result_repoter_;
}
// Sets the global test part result reporter.
void UnitTestImpl::SetGlobalTestPartResultReporter(
TestPartResultReporterInterface* reporter) {
internal::MutexLock lock(&global_test_part_result_reporter_mutex_);
global_test_part_result_repoter_ = reporter;
}
// Returns the test part result reporter for the current thread.
TestPartResultReporterInterface*
UnitTestImpl::GetTestPartResultReporterForCurrentThread() {
return per_thread_test_part_result_reporter_.get();
}
// Sets the test part result reporter for the current thread.
void UnitTestImpl::SetTestPartResultReporterForCurrentThread(
TestPartResultReporterInterface* reporter) {
per_thread_test_part_result_reporter_.set(reporter);
}
// Gets the number of successful test cases.
int UnitTestImpl::successful_test_case_count() const {
return test_cases_.CountIf(TestCasePassed);
}
// Gets the number of failed test cases.
int UnitTestImpl::failed_test_case_count() const {
return test_cases_.CountIf(TestCaseFailed);
}
// Gets the number of all test cases.
int UnitTestImpl::total_test_case_count() const {
return test_cases_.size();
}
// Gets the number of all test cases that contain at least one test
// that should run.
int UnitTestImpl::test_case_to_run_count() const {
return test_cases_.CountIf(ShouldRunTestCase);
}
// Gets the number of successful tests.
int UnitTestImpl::successful_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::successful_test_count);
}
// Gets the number of failed tests.
int UnitTestImpl::failed_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::failed_test_count);
}
// Gets the number of disabled tests.
int UnitTestImpl::disabled_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::disabled_test_count);
}
// Gets the number of all tests.
int UnitTestImpl::total_test_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::total_test_count);
}
// Gets the number of tests that should run.
int UnitTestImpl::test_to_run_count() const {
return SumOverTestCaseList(test_cases_, &TestCase::test_to_run_count);
}
// Returns the current OS stack trace as a String.
//
// The maximum number of stack frames to be included is specified by
// the gtest_stack_trace_depth flag. The skip_count parameter
// specifies the number of top frames to be skipped, which doesn't
// count against the number of frames to be included.
//
// For example, if Foo() calls Bar(), which in turn calls
// CurrentOsStackTraceExceptTop(1), Foo() will be included in the
// trace but Bar() and CurrentOsStackTraceExceptTop() won't.
String UnitTestImpl::CurrentOsStackTraceExceptTop(int skip_count) {
(void)skip_count;
return String("");
}
// Returns the current time in milliseconds.
TimeInMillis GetTimeInMillis() {
#if GTEST_OS_WINDOWS_MOBILE || defined(__BORLANDC__)
// Difference between 1970-01-01 and 1601-01-01 in milliseconds.
// http://analogous.blogspot.com/2005/04/epoch.html
const TimeInMillis kJavaEpochToWinFileTimeDelta =
static_cast<TimeInMillis>(116444736UL) * 100000UL;
const DWORD kTenthMicrosInMilliSecond = 10000;
SYSTEMTIME now_systime;
FILETIME now_filetime;
ULARGE_INTEGER now_int64;
// TODO(kenton@google.com): Shouldn't this just use
// GetSystemTimeAsFileTime()?
GetSystemTime(&now_systime);
if (SystemTimeToFileTime(&now_systime, &now_filetime)) {
now_int64.LowPart = now_filetime.dwLowDateTime;
now_int64.HighPart = now_filetime.dwHighDateTime;
now_int64.QuadPart = (now_int64.QuadPart / kTenthMicrosInMilliSecond) -
kJavaEpochToWinFileTimeDelta;
return now_int64.QuadPart;
}
return 0;
#elif GTEST_OS_WINDOWS && !GTEST_HAS_GETTIMEOFDAY_
__timeb64 now;
#ifdef _MSC_VER
// MSVC 8 deprecates _ftime64(), so we want to suppress warning 4996
// (deprecated function) there.
// TODO(kenton@google.com): Use GetTickCount()? Or use
// SystemTimeToFileTime()
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
_ftime64(&now);
#pragma warning(pop) // Restores the warning state.
#else
_ftime64(&now);
#endif // _MSC_VER
return static_cast<TimeInMillis>(now.time) * 1000 + now.millitm;
#elif GTEST_HAS_GETTIMEOFDAY_
struct timeval now;
gettimeofday(&now, NULL);
return static_cast<TimeInMillis>(now.tv_sec) * 1000 + now.tv_usec / 1000;
#else
#error "Don't know how to get the current time on your system."
#endif
}
// Utilities
// class String
// Returns the input enclosed in double quotes if it's not NULL;
// otherwise returns "(null)". For example, "\"Hello\"" is returned
// for input "Hello".
//
// This is useful for printing a C string in the syntax of a literal.
//
// Known issue: escape sequences are not handled yet.
String String::ShowCStringQuoted(const char* c_str) {
return c_str ? String::Format("\"%s\"", c_str) : String("(null)");
}
// Copies at most length characters from str into a newly-allocated
// piece of memory of size length+1. The memory is allocated with new[].
// A terminating null byte is written to the memory, and a pointer to it
// is returned. If str is NULL, NULL is returned.
static char* CloneString(const char* str, size_t length) {
if (str == NULL) {
return NULL;
} else {
char* const clone = new char[length + 1];
posix::StrNCpy(clone, str, length);
clone[length] = '\0';
return clone;
}
}
// Clones a 0-terminated C string, allocating memory using new. The
// caller is responsible for deleting[] the return value. Returns the
// cloned string, or NULL if the input is NULL.
const char * String::CloneCString(const char* c_str) {
return (c_str == NULL) ?
NULL : CloneString(c_str, strlen(c_str));
}
#if GTEST_OS_WINDOWS_MOBILE
// Creates a UTF-16 wide string from the given ANSI string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the wide string, or NULL if the
// input is NULL.
LPCWSTR String::AnsiToUtf16(const char* ansi) {
if (!ansi) return NULL;
const int length = strlen(ansi);
const int unicode_length =
MultiByteToWideChar(CP_ACP, 0, ansi, length,
NULL, 0);
WCHAR* unicode = new WCHAR[unicode_length + 1];
MultiByteToWideChar(CP_ACP, 0, ansi, length,
unicode, unicode_length);
unicode[unicode_length] = 0;
return unicode;
}
// Creates an ANSI string from the given wide string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the ANSI string, or NULL if the
// input is NULL.
const char* String::Utf16ToAnsi(LPCWSTR utf16_str) {
if (!utf16_str) return NULL;
const int ansi_length =
WideCharToMultiByte(CP_ACP, 0, utf16_str, -1,
NULL, 0, NULL, NULL);
char* ansi = new char[ansi_length + 1];
WideCharToMultiByte(CP_ACP, 0, utf16_str, -1,
ansi, ansi_length, NULL, NULL);
ansi[ansi_length] = 0;
return ansi;
}
#endif // GTEST_OS_WINDOWS_MOBILE
// Compares two C strings. Returns true iff they have the same content.
//
// Unlike strcmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CStringEquals(const char * lhs, const char * rhs) {
if ( lhs == NULL ) return rhs == NULL;
if ( rhs == NULL ) return false;
return strcmp(lhs, rhs) == 0;
}
#if GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING
// Converts an array of wide chars to a narrow string using the UTF-8
// encoding, and streams the result to the given Message object.
static void StreamWideCharsToMessage(const wchar_t* wstr, size_t length,
Message* msg) {
// TODO(wan): consider allowing a testing::String object to
// contain '\0'. This will make it behave more like std::string,
// and will allow ToUtf8String() to return the correct encoding
// for '\0' s.t. we can get rid of the conditional here (and in
// several other places).
for (size_t i = 0; i != length; ) { // NOLINT
if (wstr[i] != L'\0') {
*msg << WideStringToUtf8(wstr + i, static_cast<int>(length - i));
while (i != length && wstr[i] != L'\0')
i++;
} else {
*msg << '\0';
i++;
}
}
}
#endif // GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING
} // namespace internal
#if GTEST_HAS_STD_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& Message::operator <<(const ::std::wstring& wstr) {
internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this);
return *this;
}
#endif // GTEST_HAS_STD_WSTRING
#if GTEST_HAS_GLOBAL_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& Message::operator <<(const ::wstring& wstr) {
internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this);
return *this;
}
#endif // GTEST_HAS_GLOBAL_WSTRING
namespace internal {
// Formats a value to be used in a failure message.
// For a char value, we print it as a C++ char literal and as an
// unsigned integer (both in decimal and in hexadecimal).
String FormatForFailureMessage(char ch) {
const unsigned int ch_as_uint = ch;
// A String object cannot contain '\0', so we print "\\0" when ch is
// '\0'.
return String::Format("'%s' (%u, 0x%X)",
ch ? String::Format("%c", ch).c_str() : "\\0",
ch_as_uint, ch_as_uint);
}
// For a wchar_t value, we print it as a C++ wchar_t literal and as an
// unsigned integer (both in decimal and in hexidecimal).
String FormatForFailureMessage(wchar_t wchar) {
// The C++ standard doesn't specify the exact size of the wchar_t
// type. It just says that it shall have the same size as another
// integral type, called its underlying type.
//
// Therefore, in order to print a wchar_t value in the numeric form,
// we first convert it to the largest integral type (UInt64) and
// then print the converted value.
//
// We use streaming to print the value as "%llu" doesn't work
// correctly with MSVC 7.1.
const UInt64 wchar_as_uint64 = wchar;
Message msg;
// A String object cannot contain '\0', so we print "\\0" when wchar is
// L'\0'.
char buffer[32]; // CodePointToUtf8 requires a buffer that big.
msg << "L'"
<< (wchar ? CodePointToUtf8(static_cast<UInt32>(wchar), buffer) : "\\0")
<< "' (" << wchar_as_uint64 << ", 0x" << ::std::setbase(16)
<< wchar_as_uint64 << ")";
return msg.GetString();
}
} // namespace internal
// AssertionResult constructors.
// Used in EXPECT_TRUE/FALSE(assertion_result).
AssertionResult::AssertionResult(const AssertionResult& other)
: success_(other.success_),
message_(other.message_.get() != NULL ?
new internal::String(*other.message_) :
static_cast<internal::String*>(NULL)) {
}
// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
AssertionResult AssertionResult::operator!() const {
AssertionResult negation(!success_);
if (message_.get() != NULL)
negation << *message_;
return negation;
}
// Makes a successful assertion result.
AssertionResult AssertionSuccess() {
return AssertionResult(true);
}
// Makes a failed assertion result.
AssertionResult AssertionFailure() {
return AssertionResult(false);
}
// Makes a failed assertion result with the given failure message.
// Deprecated; use AssertionFailure() << message.
AssertionResult AssertionFailure(const Message& message) {
return AssertionFailure() << message;
}
namespace internal {
// Constructs and returns the message for an equality assertion
// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
//
// The first four parameters are the expressions used in the assertion
// and their values, as strings. For example, for ASSERT_EQ(foo, bar)
// where foo is 5 and bar is 6, we have:
//
// expected_expression: "foo"
// actual_expression: "bar"
// expected_value: "5"
// actual_value: "6"
//
// The ignoring_case parameter is true iff the assertion is a
// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will
// be inserted into the message.
AssertionResult EqFailure(const char* expected_expression,
const char* actual_expression,
const String& expected_value,
const String& actual_value,
bool ignoring_case) {
Message msg;
msg << "Value of: " << actual_expression;
if (actual_value != actual_expression) {
msg << "\n Actual: " << actual_value;
}
msg << "\nExpected: " << expected_expression;
if (ignoring_case) {
msg << " (ignoring case)";
}
if (expected_value != expected_expression) {
msg << "\nWhich is: " << expected_value;
}
return AssertionFailure(msg);
}
// Constructs a failure message for Boolean assertions such as EXPECT_TRUE.
String GetBoolAssertionFailureMessage(const AssertionResult& assertion_result,
const char* expression_text,
const char* actual_predicate_value,
const char* expected_predicate_value) {
const char* actual_message = assertion_result.message();
Message msg;
msg << "Value of: " << expression_text
<< "\n Actual: " << actual_predicate_value;
if (actual_message[0] != '\0')
msg << " (" << actual_message << ")";
msg << "\nExpected: " << expected_predicate_value;
return msg.GetString();
}
// Helper function for implementing ASSERT_NEAR.
AssertionResult DoubleNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
double val1,
double val2,
double abs_error) {
const double diff = fabs(val1 - val2);
if (diff <= abs_error) return AssertionSuccess();
// TODO(wan): do not print the value of an expression if it's
// already a literal.
Message msg;
msg << "The difference between " << expr1 << " and " << expr2
<< " is " << diff << ", which exceeds " << abs_error_expr << ", where\n"
<< expr1 << " evaluates to " << val1 << ",\n"
<< expr2 << " evaluates to " << val2 << ", and\n"
<< abs_error_expr << " evaluates to " << abs_error << ".";
return AssertionFailure(msg);
}
// Helper template for implementing FloatLE() and DoubleLE().
template <typename RawType>
AssertionResult FloatingPointLE(const char* expr1,
const char* expr2,
RawType val1,
RawType val2) {
// Returns success if val1 is less than val2,
if (val1 < val2) {
return AssertionSuccess();
}
// or if val1 is almost equal to val2.
const FloatingPoint<RawType> lhs(val1), rhs(val2);
if (lhs.AlmostEquals(rhs)) {
return AssertionSuccess();
}
// Note that the above two checks will both fail if either val1 or
// val2 is NaN, as the IEEE floating-point standard requires that
// any predicate involving a NaN must return false.
StrStream val1_ss;
val1_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val1;
StrStream val2_ss;
val2_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val2;
Message msg;
msg << "Expected: (" << expr1 << ") <= (" << expr2 << ")\n"
<< " Actual: " << StrStreamToString(&val1_ss) << " vs "
<< StrStreamToString(&val2_ss);
return AssertionFailure(msg);
}
} // namespace internal
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult FloatLE(const char* expr1, const char* expr2,
float val1, float val2) {
return internal::FloatingPointLE<float>(expr1, expr2, val1, val2);
}
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult DoubleLE(const char* expr1, const char* expr2,
double val1, double val2) {
return internal::FloatingPointLE<double>(expr1, expr2, val1, val2);
}
namespace internal {
// The helper function for {ASSERT|EXPECT}_EQ with int or enum
// arguments.
AssertionResult CmpHelperEQ(const char* expected_expression,
const char* actual_expression,
BiggestInt expected,
BiggestInt actual) {
if (expected == actual) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
FormatForComparisonFailureMessage(expected, actual),
FormatForComparisonFailureMessage(actual, expected),
false);
}
// A macro for implementing the helper functions needed to implement
// ASSERT_?? and EXPECT_?? with integer or enum arguments. It is here
// just to avoid copy-and-paste of similar code.
#define GTEST_IMPL_CMP_HELPER_(op_name, op)\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
BiggestInt val1, BiggestInt val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
Message msg;\
msg << "Expected: (" << expr1 << ") " #op " (" << expr2\
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2)\
<< " vs " << FormatForComparisonFailureMessage(val2, val1);\
return AssertionFailure(msg);\
}\
}
// Implements the helper function for {ASSERT|EXPECT}_NE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER_(NE, !=)
// Implements the helper function for {ASSERT|EXPECT}_LE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER_(LE, <=)
// Implements the helper function for {ASSERT|EXPECT}_LT with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER_(LT, < )
// Implements the helper function for {ASSERT|EXPECT}_GE with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER_(GE, >=)
// Implements the helper function for {ASSERT|EXPECT}_GT with int or
// enum arguments.
GTEST_IMPL_CMP_HELPER_(GT, > )
#undef GTEST_IMPL_CMP_HELPER_
// The helper function for {ASSERT|EXPECT}_STREQ.
AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual) {
if (String::CStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowCStringQuoted(expected),
String::ShowCStringQuoted(actual),
false);
}
// The helper function for {ASSERT|EXPECT}_STRCASEEQ.
AssertionResult CmpHelperSTRCASEEQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual) {
if (String::CaseInsensitiveCStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowCStringQuoted(expected),
String::ShowCStringQuoted(actual),
true);
}
// The helper function for {ASSERT|EXPECT}_STRNE.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2) {
if (!String::CStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << "), actual: \""
<< s1 << "\" vs \"" << s2 << "\"";
return AssertionFailure(msg);
}
}
// The helper function for {ASSERT|EXPECT}_STRCASENE.
AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2) {
if (!String::CaseInsensitiveCStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << ") (ignoring case), actual: \""
<< s1 << "\" vs \"" << s2 << "\"";
return AssertionFailure(msg);
}
}
} // namespace internal
namespace {
// Helper functions for implementing IsSubString() and IsNotSubstring().
// This group of overloaded functions return true iff needle is a
// substring of haystack. NULL is considered a substring of itself
// only.
bool IsSubstringPred(const char* needle, const char* haystack) {
if (needle == NULL || haystack == NULL)
return needle == haystack;
return strstr(haystack, needle) != NULL;
}
bool IsSubstringPred(const wchar_t* needle, const wchar_t* haystack) {
if (needle == NULL || haystack == NULL)
return needle == haystack;
return wcsstr(haystack, needle) != NULL;
}
// StringType here can be either ::std::string or ::std::wstring.
template <typename StringType>
bool IsSubstringPred(const StringType& needle,
const StringType& haystack) {
return haystack.find(needle) != StringType::npos;
}
// This function implements either IsSubstring() or IsNotSubstring(),
// depending on the value of the expected_to_be_substring parameter.
// StringType here can be const char*, const wchar_t*, ::std::string,
// or ::std::wstring.
template <typename StringType>
AssertionResult IsSubstringImpl(
bool expected_to_be_substring,
const char* needle_expr, const char* haystack_expr,
const StringType& needle, const StringType& haystack) {
if (IsSubstringPred(needle, haystack) == expected_to_be_substring)
return AssertionSuccess();
const bool is_wide_string = sizeof(needle[0]) > 1;
const char* const begin_string_quote = is_wide_string ? "L\"" : "\"";
return AssertionFailure(
Message()
<< "Value of: " << needle_expr << "\n"
<< " Actual: " << begin_string_quote << needle << "\"\n"
<< "Expected: " << (expected_to_be_substring ? "" : "not ")
<< "a substring of " << haystack_expr << "\n"
<< "Which is: " << begin_string_quote << haystack << "\"");
}
} // namespace
// IsSubstring() and IsNotSubstring() check whether needle is a
// substring of haystack (NULL is considered a substring of itself
// only), and return an appropriate error message when they fail.
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#if GTEST_HAS_STD_STRING
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#endif // GTEST_HAS_STD_STRING
#if GTEST_HAS_STD_WSTRING
AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#endif // GTEST_HAS_STD_WSTRING
namespace internal {
#if GTEST_OS_WINDOWS
namespace {
// Helper function for IsHRESULT{SuccessFailure} predicates
AssertionResult HRESULTFailureHelper(const char* expr,
const char* expected,
long hr) { // NOLINT
#if GTEST_OS_WINDOWS_MOBILE
// Windows CE doesn't support FormatMessage.
const char error_text[] = "";
#else
// Looks up the human-readable system message for the HRESULT code
// and since we're not passing any params to FormatMessage, we don't
// want inserts expanded.
const DWORD kFlags = FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS;
const DWORD kBufSize = 4096; // String::Format can't exceed this length.
// Gets the system's human readable message string for this HRESULT.
char error_text[kBufSize] = { '\0' };
DWORD message_length = ::FormatMessageA(kFlags,
0, // no source, we're asking system
hr, // the error
0, // no line width restrictions
error_text, // output buffer
kBufSize, // buf size
NULL); // no arguments for inserts
// Trims tailing white space (FormatMessage leaves a trailing cr-lf)
for (; message_length && isspace(error_text[message_length - 1]);
--message_length) {
error_text[message_length - 1] = '\0';
}
#endif // GTEST_OS_WINDOWS_MOBILE
const String error_hex(String::Format("0x%08X ", hr));
Message msg;
msg << "Expected: " << expr << " " << expected << ".\n"
<< " Actual: " << error_hex << error_text << "\n";
return ::testing::AssertionFailure(msg);
}
} // namespace
AssertionResult IsHRESULTSuccess(const char* expr, long hr) { // NOLINT
if (SUCCEEDED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "succeeds", hr);
}
AssertionResult IsHRESULTFailure(const char* expr, long hr) { // NOLINT
if (FAILED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "fails", hr);
}
#endif // GTEST_OS_WINDOWS
// Utility functions for encoding Unicode text (wide strings) in
// UTF-8.
// A Unicode code-point can have upto 21 bits, and is encoded in UTF-8
// like this:
//
// Code-point length Encoding
// 0 - 7 bits 0xxxxxxx
// 8 - 11 bits 110xxxxx 10xxxxxx
// 12 - 16 bits 1110xxxx 10xxxxxx 10xxxxxx
// 17 - 21 bits 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
// The maximum code-point a one-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint1 = (static_cast<UInt32>(1) << 7) - 1;
// The maximum code-point a two-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint2 = (static_cast<UInt32>(1) << (5 + 6)) - 1;
// The maximum code-point a three-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint3 = (static_cast<UInt32>(1) << (4 + 2*6)) - 1;
// The maximum code-point a four-byte UTF-8 sequence can represent.
const UInt32 kMaxCodePoint4 = (static_cast<UInt32>(1) << (3 + 3*6)) - 1;
// Chops off the n lowest bits from a bit pattern. Returns the n
// lowest bits. As a side effect, the original bit pattern will be
// shifted to the right by n bits.
inline UInt32 ChopLowBits(UInt32* bits, int n) {
const UInt32 low_bits = *bits & ((static_cast<UInt32>(1) << n) - 1);
*bits >>= n;
return low_bits;
}
// Converts a Unicode code point to a narrow string in UTF-8 encoding.
// code_point parameter is of type UInt32 because wchar_t may not be
// wide enough to contain a code point.
// The output buffer str must containt at least 32 characters.
// The function returns the address of the output buffer.
// If the code_point is not a valid Unicode code point
// (i.e. outside of Unicode range U+0 to U+10FFFF) it will be output
// as '(Invalid Unicode 0xXXXXXXXX)'.
char* CodePointToUtf8(UInt32 code_point, char* str) {
if (code_point <= kMaxCodePoint1) {
str[1] = '\0';
str[0] = static_cast<char>(code_point); // 0xxxxxxx
} else if (code_point <= kMaxCodePoint2) {
str[2] = '\0';
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xC0 | code_point); // 110xxxxx
} else if (code_point <= kMaxCodePoint3) {
str[3] = '\0';
str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xE0 | code_point); // 1110xxxx
} else if (code_point <= kMaxCodePoint4) {
str[4] = '\0';
str[3] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xF0 | code_point); // 11110xxx
} else {
// The longest string String::Format can produce when invoked
// with these parameters is 28 character long (not including
// the terminating nul character). We are asking for 32 character
// buffer just in case. This is also enough for strncpy to
// null-terminate the destination string.
posix::StrNCpy(
str, String::Format("(Invalid Unicode 0x%X)", code_point).c_str(), 32);
str[31] = '\0'; // Makes sure no change in the format to strncpy leaves
// the result unterminated.
}
return str;
}
// The following two functions only make sense if the the system
// uses UTF-16 for wide string encoding. All supported systems
// with 16 bit wchar_t (Windows, Cygwin, Symbian OS) do use UTF-16.
// Determines if the arguments constitute UTF-16 surrogate pair
// and thus should be combined into a single Unicode code point
// using CreateCodePointFromUtf16SurrogatePair.
inline bool IsUtf16SurrogatePair(wchar_t first, wchar_t second) {
return sizeof(wchar_t) == 2 &&
(first & 0xFC00) == 0xD800 && (second & 0xFC00) == 0xDC00;
}
// Creates a Unicode code point from UTF16 surrogate pair.
inline UInt32 CreateCodePointFromUtf16SurrogatePair(wchar_t first,
wchar_t second) {
const UInt32 mask = (1 << 10) - 1;
return (sizeof(wchar_t) == 2) ?
(((first & mask) << 10) | (second & mask)) + 0x10000 :
// This function should not be called when the condition is
// false, but we provide a sensible default in case it is.
static_cast<UInt32>(first);
}
// Converts a wide string to a narrow string in UTF-8 encoding.
// The wide string is assumed to have the following encoding:
// UTF-16 if sizeof(wchar_t) == 2 (on Windows, Cygwin, Symbian OS)
// UTF-32 if sizeof(wchar_t) == 4 (on Linux)
// Parameter str points to a null-terminated wide string.
// Parameter num_chars may additionally limit the number
// of wchar_t characters processed. -1 is used when the entire string
// should be processed.
// If the string contains code points that are not valid Unicode code points
// (i.e. outside of Unicode range U+0 to U+10FFFF) they will be output
// as '(Invalid Unicode 0xXXXXXXXX)'. If the string is in UTF16 encoding
// and contains invalid UTF-16 surrogate pairs, values in those pairs
// will be encoded as individual Unicode characters from Basic Normal Plane.
String WideStringToUtf8(const wchar_t* str, int num_chars) {
if (num_chars == -1)
num_chars = static_cast<int>(wcslen(str));
StrStream stream;
for (int i = 0; i < num_chars; ++i) {
UInt32 unicode_code_point;
if (str[i] == L'\0') {
break;
} else if (i + 1 < num_chars && IsUtf16SurrogatePair(str[i], str[i + 1])) {
unicode_code_point = CreateCodePointFromUtf16SurrogatePair(str[i],
str[i + 1]);
i++;
} else {
unicode_code_point = static_cast<UInt32>(str[i]);
}
char buffer[32]; // CodePointToUtf8 requires a buffer this big.
stream << CodePointToUtf8(unicode_code_point, buffer);
}
return StrStreamToString(&stream);
}
// Converts a wide C string to a String using the UTF-8 encoding.
// NULL will be converted to "(null)".
String String::ShowWideCString(const wchar_t * wide_c_str) {
if (wide_c_str == NULL) return String("(null)");
return String(internal::WideStringToUtf8(wide_c_str, -1).c_str());
}
// Similar to ShowWideCString(), except that this function encloses
// the converted string in double quotes.
String String::ShowWideCStringQuoted(const wchar_t* wide_c_str) {
if (wide_c_str == NULL) return String("(null)");
return String::Format("L\"%s\"",
String::ShowWideCString(wide_c_str).c_str());
}
// Compares two wide C strings. Returns true iff they have the same
// content.
//
// Unlike wcscmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::WideCStringEquals(const wchar_t * lhs, const wchar_t * rhs) {
if (lhs == NULL) return rhs == NULL;
if (rhs == NULL) return false;
return wcscmp(lhs, rhs) == 0;
}
// Helper function for *_STREQ on wide strings.
AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const wchar_t* expected,
const wchar_t* actual) {
if (String::WideCStringEquals(expected, actual)) {
return AssertionSuccess();
}
return EqFailure(expected_expression,
actual_expression,
String::ShowWideCStringQuoted(expected),
String::ShowWideCStringQuoted(actual),
false);
}
// Helper function for *_STRNE on wide strings.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const wchar_t* s1,
const wchar_t* s2) {
if (!String::WideCStringEquals(s1, s2)) {
return AssertionSuccess();
}
Message msg;
msg << "Expected: (" << s1_expression << ") != ("
<< s2_expression << "), actual: "
<< String::ShowWideCStringQuoted(s1)
<< " vs " << String::ShowWideCStringQuoted(s2);
return AssertionFailure(msg);
}
// Compares two C strings, ignoring case. Returns true iff they have
// the same content.
//
// Unlike strcasecmp(), this function can handle NULL argument(s). A
// NULL C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CaseInsensitiveCStringEquals(const char * lhs, const char * rhs) {
if (lhs == NULL)
return rhs == NULL;
if (rhs == NULL)
return false;
return posix::StrCaseCmp(lhs, rhs) == 0;
}
// Compares two wide C strings, ignoring case. Returns true iff they
// have the same content.
//
// Unlike wcscasecmp(), this function can handle NULL argument(s).
// A NULL C string is considered different to any non-NULL wide C string,
// including the empty string.
// NB: The implementations on different platforms slightly differ.
// On windows, this method uses _wcsicmp which compares according to LC_CTYPE
// environment variable. On GNU platform this method uses wcscasecmp
// which compares according to LC_CTYPE category of the current locale.
// On MacOS X, it uses towlower, which also uses LC_CTYPE category of the
// current locale.
bool String::CaseInsensitiveWideCStringEquals(const wchar_t* lhs,
const wchar_t* rhs) {
if ( lhs == NULL ) return rhs == NULL;
if ( rhs == NULL ) return false;
#if GTEST_OS_WINDOWS
return _wcsicmp(lhs, rhs) == 0;
#elif GTEST_OS_LINUX
return wcscasecmp(lhs, rhs) == 0;
#else
// Mac OS X and Cygwin don't define wcscasecmp. Other unknown OSes
// may not define it either.
wint_t left, right;
do {
left = towlower(*lhs++);
right = towlower(*rhs++);
} while (left && left == right);
return left == right;
#endif // OS selector
}
// Compares this with another String.
// Returns < 0 if this is less than rhs, 0 if this is equal to rhs, or > 0
// if this is greater than rhs.
int String::Compare(const String & rhs) const {
const char* const lhs_c_str = c_str();
const char* const rhs_c_str = rhs.c_str();
if (lhs_c_str == NULL) {
return rhs_c_str == NULL ? 0 : -1; // NULL < anything except NULL
} else if (rhs_c_str == NULL) {
return 1;
}
const size_t shorter_str_len =
length() <= rhs.length() ? length() : rhs.length();
for (size_t i = 0; i != shorter_str_len; i++) {
if (lhs_c_str[i] < rhs_c_str[i]) {
return -1;
} else if (lhs_c_str[i] > rhs_c_str[i]) {
return 1;
}
}
return (length() < rhs.length()) ? -1 :
(length() > rhs.length()) ? 1 : 0;
}
// Returns true iff this String ends with the given suffix. *Any*
// String is considered to end with a NULL or empty suffix.
bool String::EndsWith(const char* suffix) const {
if (suffix == NULL || CStringEquals(suffix, "")) return true;
if (c_str() == NULL) return false;
const size_t this_len = strlen(c_str());
const size_t suffix_len = strlen(suffix);
return (this_len >= suffix_len) &&
CStringEquals(c_str() + this_len - suffix_len, suffix);
}
// Returns true iff this String ends with the given suffix, ignoring case.
// Any String is considered to end with a NULL or empty suffix.
bool String::EndsWithCaseInsensitive(const char* suffix) const {
if (suffix == NULL || CStringEquals(suffix, "")) return true;
if (c_str() == NULL) return false;
const size_t this_len = strlen(c_str());
const size_t suffix_len = strlen(suffix);
return (this_len >= suffix_len) &&
CaseInsensitiveCStringEquals(c_str() + this_len - suffix_len, suffix);
}
// Formats a list of arguments to a String, using the same format
// spec string as for printf.
//
// We do not use the StringPrintf class as it is not universally
// available.
//
// The result is limited to 4096 characters (including the tailing 0).
// If 4096 characters are not enough to format the input, or if
// there's an error, "<formatting error or buffer exceeded>" is
// returned.
String String::Format(const char * format, ...) {
va_list args;
va_start(args, format);
char buffer[4096];
const int kBufferSize = sizeof(buffer)/sizeof(buffer[0]);
// MSVC 8 deprecates vsnprintf(), so we want to suppress warning
// 4996 (deprecated function) there.
#ifdef _MSC_VER // We are using MSVC.
#pragma warning(push) // Saves the current warning state.
#pragma warning(disable:4996) // Temporarily disables warning 4996.
const int size = vsnprintf(buffer, kBufferSize, format, args);
#pragma warning(pop) // Restores the warning state.
#else // We are not using MSVC.
const int size = vsnprintf(buffer, kBufferSize, format, args);
#endif // _MSC_VER
va_end(args);
// vsnprintf()'s behavior is not portable. When the buffer is not
// big enough, it returns a negative value in MSVC, and returns the
// needed buffer size on Linux. When there is an output error, it
// always returns a negative value. For simplicity, we lump the two
// error cases together.
if (size < 0 || size >= kBufferSize) {
return String("<formatting error or buffer exceeded>");
} else {
return String(buffer, size);
}
}
// Converts the buffer in a StrStream to a String, converting NUL
// bytes to "\\0" along the way.
String StrStreamToString(StrStream* ss) {
#if GTEST_HAS_STD_STRING
const ::std::string& str = ss->str();
const char* const start = str.c_str();
const char* const end = start + str.length();
#else
const char* const start = ss->str();
const char* const end = start + ss->pcount();
#endif // GTEST_HAS_STD_STRING
// We need to use a helper StrStream to do this transformation
// because String doesn't support push_back().
StrStream helper;
for (const char* ch = start; ch != end; ++ch) {
if (*ch == '\0') {
helper << "\\0"; // Replaces NUL with "\\0";
} else {
helper.put(*ch);
}
}
#if GTEST_HAS_STD_STRING
return String(helper.str().c_str());
#else
const String str(helper.str(), helper.pcount());
helper.freeze(false);
ss->freeze(false);
return str;
#endif // GTEST_HAS_STD_STRING
}
// Appends the user-supplied message to the Google-Test-generated message.
String AppendUserMessage(const String& gtest_msg,
const Message& user_msg) {
// Appends the user message if it's non-empty.
const String user_msg_string = user_msg.GetString();
if (user_msg_string.empty()) {
return gtest_msg;
}
Message msg;
msg << gtest_msg << "\n" << user_msg_string;
return msg.GetString();
}
} // namespace internal
// class TestResult
// Creates an empty TestResult.
TestResult::TestResult()
: test_part_results_(new internal::Vector<TestPartResult>),
test_properties_(new internal::Vector<TestProperty>),
death_test_count_(0),
elapsed_time_(0) {
}
// D'tor.
TestResult::~TestResult() {
}
// Returns the i-th test part result among all the results. i can
// range from 0 to total_part_count() - 1. If i is not in that range,
// aborts the program.
const TestPartResult& TestResult::GetTestPartResult(int i) const {
return test_part_results_->GetElement(i);
}
// Returns the i-th test property. i can range from 0 to
// test_property_count() - 1. If i is not in that range, aborts the
// program.
const TestProperty& TestResult::GetTestProperty(int i) const {
return test_properties_->GetElement(i);
}
// Clears the test part results.
void TestResult::ClearTestPartResults() {
test_part_results_->Clear();
}
// Adds a test part result to the list.
void TestResult::AddTestPartResult(const TestPartResult& test_part_result) {
test_part_results_->PushBack(test_part_result);
}
// Adds a test property to the list. If a property with the same key as the
// supplied property is already represented, the value of this test_property
// replaces the old value for that key.
void TestResult::RecordProperty(const TestProperty& test_property) {
if (!ValidateTestProperty(test_property)) {
return;
}
internal::MutexLock lock(&test_properites_mutex_);
TestProperty* const property_with_matching_key =
test_properties_->FindIf(
internal::TestPropertyKeyIs(test_property.key()));
if (property_with_matching_key == NULL) {
test_properties_->PushBack(test_property);
return;
}
property_with_matching_key->SetValue(test_property.value());
}
// Adds a failure if the key is a reserved attribute of Google Test
// testcase tags. Returns true if the property is valid.
bool TestResult::ValidateTestProperty(const TestProperty& test_property) {
internal::String key(test_property.key());
if (key == "name" || key == "status" || key == "time" || key == "classname") {
ADD_FAILURE()
<< "Reserved key used in RecordProperty(): "
<< key
<< " ('name', 'status', 'time', and 'classname' are reserved by "
<< GTEST_NAME_ << ")";
return false;
}
return true;
}
// Clears the object.
void TestResult::Clear() {
test_part_results_->Clear();
test_properties_->Clear();
death_test_count_ = 0;
elapsed_time_ = 0;
}
// Returns true iff the test failed.
bool TestResult::Failed() const {
for (int i = 0; i < total_part_count(); ++i) {
if (GetTestPartResult(i).failed())
return true;
}
return false;
}
// Returns true iff the test part fatally failed.
static bool TestPartFatallyFailed(const TestPartResult& result) {
return result.fatally_failed();
}
// Returns true iff the test fatally failed.
bool TestResult::HasFatalFailure() const {
return test_part_results_->CountIf(TestPartFatallyFailed) > 0;
}
// Returns true iff the test part non-fatally failed.
static bool TestPartNonfatallyFailed(const TestPartResult& result) {
return result.nonfatally_failed();
}
// Returns true iff the test has a non-fatal failure.
bool TestResult::HasNonfatalFailure() const {
return test_part_results_->CountIf(TestPartNonfatallyFailed) > 0;
}
// Gets the number of all test parts. This is the sum of the number
// of successful test parts and the number of failed test parts.
int TestResult::total_part_count() const {
return test_part_results_->size();
}
// Returns the number of the test properties.
int TestResult::test_property_count() const {
return test_properties_->size();
}
// class Test
// Creates a Test object.
// The c'tor saves the values of all Google Test flags.
Test::Test()
: gtest_flag_saver_(new internal::GTestFlagSaver) {
}
// The d'tor restores the values of all Google Test flags.
Test::~Test() {
delete gtest_flag_saver_;
}
// Sets up the test fixture.
//
// A sub-class may override this.
void Test::SetUp() {
}
// Tears down the test fixture.
//
// A sub-class may override this.
void Test::TearDown() {
}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const char* key, const char* value) {
UnitTest::GetInstance()->RecordPropertyForCurrentTest(key, value);
}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const char* key, int value) {
Message value_message;
value_message << value;
RecordProperty(key, value_message.GetString().c_str());
}
namespace internal {
void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
const String& message) {
// This function is a friend of UnitTest and as such has access to
// AddTestPartResult.
UnitTest::GetInstance()->AddTestPartResult(
result_type,
NULL, // No info about the source file where the exception occurred.
-1, // We have no info on which line caused the exception.
message,
String()); // No stack trace, either.
}
} // namespace internal
#if GTEST_OS_WINDOWS
// We are on Windows.
// Adds an "exception thrown" fatal failure to the current test.
static void AddExceptionThrownFailure(DWORD exception_code,
const char* location) {
Message message;
message << "Exception thrown with code 0x" << std::setbase(16) <<
exception_code << std::setbase(10) << " in " << location << ".";
internal::ReportFailureInUnknownLocation(TestPartResult::kFatalFailure,
message.GetString());
}
#endif // GTEST_OS_WINDOWS
// Google Test requires all tests in the same test case to use the same test
// fixture class. This function checks if the current test has the
// same fixture class as the first test in the current test case. If
// yes, it returns true; otherwise it generates a Google Test failure and
// returns false.
bool Test::HasSameFixtureClass() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
const TestCase* const test_case = impl->current_test_case();
// Info about the first test in the current test case.
const internal::TestInfoImpl* const first_test_info =
test_case->test_info_list().GetElement(0)->impl();
const internal::TypeId first_fixture_id = first_test_info->fixture_class_id();
const char* const first_test_name = first_test_info->name();
// Info about the current test.
const internal::TestInfoImpl* const this_test_info =
impl->current_test_info()->impl();
const internal::TypeId this_fixture_id = this_test_info->fixture_class_id();
const char* const this_test_name = this_test_info->name();
if (this_fixture_id != first_fixture_id) {
// Is the first test defined using TEST?
const bool first_is_TEST = first_fixture_id == internal::GetTestTypeId();
// Is this test defined using TEST?
const bool this_is_TEST = this_fixture_id == internal::GetTestTypeId();
if (first_is_TEST || this_is_TEST) {
// The user mixed TEST and TEST_F in this test case - we'll tell
// him/her how to fix it.
// Gets the name of the TEST and the name of the TEST_F. Note
// that first_is_TEST and this_is_TEST cannot both be true, as
// the fixture IDs are different for the two tests.
const char* const TEST_name =
first_is_TEST ? first_test_name : this_test_name;
const char* const TEST_F_name =
first_is_TEST ? this_test_name : first_test_name;
ADD_FAILURE()
<< "All tests in the same test case must use the same test fixture\n"
<< "class, so mixing TEST_F and TEST in the same test case is\n"
<< "illegal. In test case " << this_test_info->test_case_name()
<< ",\n"
<< "test " << TEST_F_name << " is defined using TEST_F but\n"
<< "test " << TEST_name << " is defined using TEST. You probably\n"
<< "want to change the TEST to TEST_F or move it to another test\n"
<< "case.";
} else {
// The user defined two fixture classes with the same name in
// two namespaces - we'll tell him/her how to fix it.
ADD_FAILURE()
<< "All tests in the same test case must use the same test fixture\n"
<< "class. However, in test case "
<< this_test_info->test_case_name() << ",\n"
<< "you defined test " << first_test_name
<< " and test " << this_test_name << "\n"
<< "using two different test fixture classes. This can happen if\n"
<< "the two classes are from different namespaces or translation\n"
<< "units and have the same name. You should probably rename one\n"
<< "of the classes to put the tests into different test cases.";
}
return false;
}
return true;
}
// Runs the test and updates the test result.
void Test::Run() {
if (!HasSameFixtureClass()) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
#if GTEST_HAS_SEH
// Catch SEH-style exceptions.
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
SetUp();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "SetUp()");
}
// We will run the test only if SetUp() had no fatal failure.
if (!HasFatalFailure()) {
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
TestBody();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "the test body");
}
}
// However, we want to clean up as much as possible. Hence we will
// always call TearDown(), even if SetUp() or the test body has
// failed.
impl->os_stack_trace_getter()->UponLeavingGTest();
__try {
TearDown();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(), "TearDown()");
}
#else // We are on a compiler or platform that doesn't support SEH.
impl->os_stack_trace_getter()->UponLeavingGTest();
SetUp();
// We will run the test only if SetUp() was successful.
if (!HasFatalFailure()) {
impl->os_stack_trace_getter()->UponLeavingGTest();
TestBody();
}
// However, we want to clean up as much as possible. Hence we will
// always call TearDown(), even if SetUp() or the test body has
// failed.
impl->os_stack_trace_getter()->UponLeavingGTest();
TearDown();
#endif // GTEST_HAS_SEH
}
// Returns true iff the current test has a fatal failure.
bool Test::HasFatalFailure() {
return internal::GetUnitTestImpl()->current_test_result()->HasFatalFailure();
}
// Returns true iff the current test has a non-fatal failure.
bool Test::HasNonfatalFailure() {
return internal::GetUnitTestImpl()->current_test_result()->
HasNonfatalFailure();
}
// class TestInfo
// Constructs a TestInfo object. It assumes ownership of the test factory
// object via impl_.
TestInfo::TestInfo(const char* test_case_name,
const char* name,
const char* test_case_comment,
const char* comment,
internal::TypeId fixture_class_id,
internal::TestFactoryBase* factory) {
impl_ = new internal::TestInfoImpl(this, test_case_name, name,
test_case_comment, comment,
fixture_class_id, factory);
}
// Destructs a TestInfo object.
TestInfo::~TestInfo() {
delete impl_;
}
namespace internal {
// Creates a new TestInfo object and registers it with Google Test;
// returns the created object.
//
// Arguments:
//
// test_case_name: name of the test case
// name: name of the test
// test_case_comment: a comment on the test case that will be included in
// the test output
// comment: a comment on the test that will be included in the
// test output
// fixture_class_id: ID of the test fixture class
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
// factory: pointer to the factory that creates a test object.
// The newly created TestInfo instance will assume
// ownership of the factory object.
TestInfo* MakeAndRegisterTestInfo(
const char* test_case_name, const char* name,
const char* test_case_comment, const char* comment,
TypeId fixture_class_id,
SetUpTestCaseFunc set_up_tc,
TearDownTestCaseFunc tear_down_tc,
TestFactoryBase* factory) {
TestInfo* const test_info =
new TestInfo(test_case_name, name, test_case_comment, comment,
fixture_class_id, factory);
GetUnitTestImpl()->AddTestInfo(set_up_tc, tear_down_tc, test_info);
return test_info;
}
#if GTEST_HAS_PARAM_TEST
void ReportInvalidTestCaseType(const char* test_case_name,
const char* file, int line) {
Message errors;
errors
<< "Attempted redefinition of test case " << test_case_name << ".\n"
<< "All tests in the same test case must use the same test fixture\n"
<< "class. However, in test case " << test_case_name << ", you tried\n"
<< "to define a test using a fixture class different from the one\n"
<< "used earlier. This can happen if the two fixture classes are\n"
<< "from different namespaces and have the same name. You should\n"
<< "probably rename one of the classes to put the tests into different\n"
<< "test cases.";
fprintf(stderr, "%s %s", FormatFileLocation(file, line).c_str(),
errors.GetString().c_str());
}
#endif // GTEST_HAS_PARAM_TEST
} // namespace internal
// Returns the test case name.
const char* TestInfo::test_case_name() const {
return impl_->test_case_name();
}
// Returns the test name.
const char* TestInfo::name() const {
return impl_->name();
}
// Returns the test case comment.
const char* TestInfo::test_case_comment() const {
return impl_->test_case_comment();
}
// Returns the test comment.
const char* TestInfo::comment() const {
return impl_->comment();
}
// Returns true if this test should run.
bool TestInfo::should_run() const { return impl_->should_run(); }
// Returns true if this test matches the user-specified filter.
bool TestInfo::matches_filter() const { return impl_->matches_filter(); }
// Returns the result of the test.
const TestResult* TestInfo::result() const { return impl_->result(); }
// Increments the number of death tests encountered in this test so
// far.
int TestInfo::increment_death_test_count() {
return impl_->result()->increment_death_test_count();
}
namespace {
// A predicate that checks the test name of a TestInfo against a known
// value.
//
// This is used for implementation of the TestCase class only. We put
// it in the anonymous namespace to prevent polluting the outer
// namespace.
//
// TestNameIs is copyable.
class TestNameIs {
public:
// Constructor.
//
// TestNameIs has NO default constructor.
explicit TestNameIs(const char* name)
: name_(name) {}
// Returns true iff the test name of test_info matches name_.
bool operator()(const TestInfo * test_info) const {
return test_info && internal::String(test_info->name()).Compare(name_) == 0;
}
private:
internal::String name_;
};
} // namespace
namespace internal {
// This method expands all parameterized tests registered with macros TEST_P
// and INSTANTIATE_TEST_CASE_P into regular tests and registers those.
// This will be done just once during the program runtime.
void UnitTestImpl::RegisterParameterizedTests() {
#if GTEST_HAS_PARAM_TEST
if (!parameterized_tests_registered_) {
parameterized_test_registry_.RegisterTests();
parameterized_tests_registered_ = true;
}
#endif
}
// Creates the test object, runs it, records its result, and then
// deletes it.
void TestInfoImpl::Run() {
if (!should_run_) return;
// Tells UnitTest where to store test result.
UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_info(parent_);
TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater();
// Notifies the unit test event listeners that a test is about to start.
repeater->OnTestStart(*parent_);
const TimeInMillis start = GetTimeInMillis();
impl->os_stack_trace_getter()->UponLeavingGTest();
#if GTEST_HAS_SEH
// Catch SEH-style exceptions.
Test* test = NULL;
__try {
// Creates the test object.
test = factory_->CreateTest();
} __except(internal::UnitTestOptions::GTestShouldProcessSEH(
GetExceptionCode())) {
AddExceptionThrownFailure(GetExceptionCode(),
"the test fixture's constructor");
return;
}
#else // We are on a compiler or platform that doesn't support SEH.
// TODO(wan): If test->Run() throws, test won't be deleted. This is
// not a problem now as we don't use exceptions. If we were to
// enable exceptions, we should revise the following to be
// exception-safe.
// Creates the test object.
Test* test = factory_->CreateTest();
#endif // GTEST_HAS_SEH
// Runs the test only if the constructor of the test fixture didn't
// generate a fatal failure.
if (!Test::HasFatalFailure()) {
test->Run();
}
// Deletes the test object.
impl->os_stack_trace_getter()->UponLeavingGTest();
delete test;
test = NULL;
result_.set_elapsed_time(GetTimeInMillis() - start);
// Notifies the unit test event listener that a test has just finished.
repeater->OnTestEnd(*parent_);
// Tells UnitTest to stop associating assertion results to this
// test.
impl->set_current_test_info(NULL);
}
} // namespace internal
// class TestCase
// Gets the number of successful tests in this test case.
int TestCase::successful_test_count() const {
return test_info_list_->CountIf(TestPassed);
}
// Gets the number of failed tests in this test case.
int TestCase::failed_test_count() const {
return test_info_list_->CountIf(TestFailed);
}
int TestCase::disabled_test_count() const {
return test_info_list_->CountIf(TestDisabled);
}
// Get the number of tests in this test case that should run.
int TestCase::test_to_run_count() const {
return test_info_list_->CountIf(ShouldRunTest);
}
// Gets the number of all tests.
int TestCase::total_test_count() const {
return test_info_list_->size();
}
// Creates a TestCase with the given name.
//
// Arguments:
//
// name: name of the test case
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
TestCase::TestCase(const char* name, const char* comment,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc)
: name_(name),
comment_(comment),
test_info_list_(new internal::Vector<TestInfo*>),
test_indices_(new internal::Vector<int>),
set_up_tc_(set_up_tc),
tear_down_tc_(tear_down_tc),
should_run_(false),
elapsed_time_(0) {
}
// Destructor of TestCase.
TestCase::~TestCase() {
// Deletes every Test in the collection.
test_info_list_->ForEach(internal::Delete<TestInfo>);
}
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
const TestInfo* TestCase::GetTestInfo(int i) const {
const int index = test_indices_->GetElementOr(i, -1);
return index < 0 ? NULL : test_info_list_->GetElement(index);
}
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
TestInfo* TestCase::GetMutableTestInfo(int i) {
const int index = test_indices_->GetElementOr(i, -1);
return index < 0 ? NULL : test_info_list_->GetElement(index);
}
// Adds a test to this test case. Will delete the test upon
// destruction of the TestCase object.
void TestCase::AddTestInfo(TestInfo * test_info) {
test_info_list_->PushBack(test_info);
test_indices_->PushBack(test_indices_->size());
}
// Runs every test in this TestCase.
void TestCase::Run() {
if (!should_run_) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_case(this);
TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater();
repeater->OnTestCaseStart(*this);
impl->os_stack_trace_getter()->UponLeavingGTest();
set_up_tc_();
const internal::TimeInMillis start = internal::GetTimeInMillis();
for (int i = 0; i < total_test_count(); i++) {
GetMutableTestInfo(i)->impl()->Run();
}
elapsed_time_ = internal::GetTimeInMillis() - start;
impl->os_stack_trace_getter()->UponLeavingGTest();
tear_down_tc_();
repeater->OnTestCaseEnd(*this);
impl->set_current_test_case(NULL);
}
// Clears the results of all tests in this test case.
void TestCase::ClearResult() {
test_info_list_->ForEach(internal::TestInfoImpl::ClearTestResult);
}
// Returns true iff test passed.
bool TestCase::TestPassed(const TestInfo * test_info) {
const internal::TestInfoImpl* const impl = test_info->impl();
return impl->should_run() && impl->result()->Passed();
}
// Returns true iff test failed.
bool TestCase::TestFailed(const TestInfo * test_info) {
const internal::TestInfoImpl* const impl = test_info->impl();
return impl->should_run() && impl->result()->Failed();
}
// Returns true iff test is disabled.
bool TestCase::TestDisabled(const TestInfo * test_info) {
return test_info->impl()->is_disabled();
}
// Returns true if the given test should run.
bool TestCase::ShouldRunTest(const TestInfo *test_info) {
return test_info->impl()->should_run();
}
// Shuffles the tests in this test case.
void TestCase::ShuffleTests(internal::Random* random) {
test_indices_->Shuffle(random);
}
// Restores the test order to before the first shuffle.
void TestCase::UnshuffleTests() {
for (int i = 0; i < test_indices_->size(); i++) {
test_indices_->GetMutableElement(i) = i;
}
}
// Formats a countable noun. Depending on its quantity, either the
// singular form or the plural form is used. e.g.
//
// FormatCountableNoun(1, "formula", "formuli") returns "1 formula".
// FormatCountableNoun(5, "book", "books") returns "5 books".
static internal::String FormatCountableNoun(int count,
const char * singular_form,
const char * plural_form) {
return internal::String::Format("%d %s", count,
count == 1 ? singular_form : plural_form);
}
// Formats the count of tests.
static internal::String FormatTestCount(int test_count) {
return FormatCountableNoun(test_count, "test", "tests");
}
// Formats the count of test cases.
static internal::String FormatTestCaseCount(int test_case_count) {
return FormatCountableNoun(test_case_count, "test case", "test cases");
}
// Converts a TestPartResult::Type enum to human-friendly string
// representation. Both kNonFatalFailure and kFatalFailure are translated
// to "Failure", as the user usually doesn't care about the difference
// between the two when viewing the test result.
static const char * TestPartResultTypeToString(TestPartResult::Type type) {
switch (type) {
case TestPartResult::kSuccess:
return "Success";
case TestPartResult::kNonFatalFailure:
case TestPartResult::kFatalFailure:
#ifdef _MSC_VER
return "error: ";
#else
return "Failure\n";
#endif
}
return "Unknown result type";
}
// Prints a TestPartResult to a String.
static internal::String PrintTestPartResultToString(
const TestPartResult& test_part_result) {
return (Message()
<< internal::FormatFileLocation(test_part_result.file_name(),
test_part_result.line_number())
<< " " << TestPartResultTypeToString(test_part_result.type())
<< test_part_result.message()).GetString();
}
// Prints a TestPartResult.
static void PrintTestPartResult(const TestPartResult& test_part_result) {
const internal::String& result =
PrintTestPartResultToString(test_part_result);
printf("%s\n", result.c_str());
fflush(stdout);
// If the test program runs in Visual Studio or a debugger, the
// following statements add the test part result message to the Output
// window such that the user can double-click on it to jump to the
// corresponding source code location; otherwise they do nothing.
#if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
// We don't call OutputDebugString*() on Windows Mobile, as printing
// to stdout is done by OutputDebugString() there already - we don't
// want the same message printed twice.
::OutputDebugStringA(result.c_str());
::OutputDebugStringA("\n");
#endif
}
// class PrettyUnitTestResultPrinter
namespace internal {
enum GTestColor {
COLOR_DEFAULT,
COLOR_RED,
COLOR_GREEN,
COLOR_YELLOW
};
#if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
// Returns the character attribute for the given color.
WORD GetColorAttribute(GTestColor color) {
switch (color) {
case COLOR_RED: return FOREGROUND_RED;
case COLOR_GREEN: return FOREGROUND_GREEN;
case COLOR_YELLOW: return FOREGROUND_RED | FOREGROUND_GREEN;
default: return 0;
}
}
#else
// Returns the ANSI color code for the given color. COLOR_DEFAULT is
// an invalid input.
const char* GetAnsiColorCode(GTestColor color) {
switch (color) {
case COLOR_RED: return "1";
case COLOR_GREEN: return "2";
case COLOR_YELLOW: return "3";
default: return NULL;
};
}
#endif // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
// Returns true iff Google Test should use colors in the output.
bool ShouldUseColor(bool stdout_is_tty) {
const char* const gtest_color = GTEST_FLAG(color).c_str();
if (String::CaseInsensitiveCStringEquals(gtest_color, "auto")) {
#if GTEST_OS_WINDOWS
// On Windows the TERM variable is usually not set, but the
// console there does support colors.
return stdout_is_tty;
#else
// On non-Windows platforms, we rely on the TERM variable.
const char* const term = posix::GetEnv("TERM");
const bool term_supports_color =
String::CStringEquals(term, "xterm") ||
String::CStringEquals(term, "xterm-color") ||
String::CStringEquals(term, "xterm-256color") ||
String::CStringEquals(term, "linux") ||
String::CStringEquals(term, "cygwin");
return stdout_is_tty && term_supports_color;
#endif // GTEST_OS_WINDOWS
}
return String::CaseInsensitiveCStringEquals(gtest_color, "yes") ||
String::CaseInsensitiveCStringEquals(gtest_color, "true") ||
String::CaseInsensitiveCStringEquals(gtest_color, "t") ||
String::CStringEquals(gtest_color, "1");
// We take "yes", "true", "t", and "1" as meaning "yes". If the
// value is neither one of these nor "auto", we treat it as "no" to
// be conservative.
}
// Helpers for printing colored strings to stdout. Note that on Windows, we
// cannot simply emit special characters and have the terminal change colors.
// This routine must actually emit the characters rather than return a string
// that would be colored when printed, as can be done on Linux.
void ColoredPrintf(GTestColor color, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || GTEST_OS_ZOS
const bool use_color = false;
#else
static const bool in_color_mode =
ShouldUseColor(posix::IsATTY(posix::FileNo(stdout)) != 0);
const bool use_color = in_color_mode && (color != COLOR_DEFAULT);
#endif // GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || GTEST_OS_ZOS
// The '!= 0' comparison is necessary to satisfy MSVC 7.1.
if (!use_color) {
vprintf(fmt, args);
va_end(args);
return;
}
#if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
const HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE);
// Gets the current text color.
CONSOLE_SCREEN_BUFFER_INFO buffer_info;
GetConsoleScreenBufferInfo(stdout_handle, &buffer_info);
const WORD old_color_attrs = buffer_info.wAttributes;
SetConsoleTextAttribute(stdout_handle,
GetColorAttribute(color) | FOREGROUND_INTENSITY);
vprintf(fmt, args);
// Restores the text color.
SetConsoleTextAttribute(stdout_handle, old_color_attrs);
#else
printf("\033[0;3%sm", GetAnsiColorCode(color));
vprintf(fmt, args);
printf("\033[m"); // Resets the terminal to default.
#endif // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
va_end(args);
}
// This class implements the TestEventListener interface.
//
// Class PrettyUnitTestResultPrinter is copyable.
class PrettyUnitTestResultPrinter : public TestEventListener {
public:
PrettyUnitTestResultPrinter() {}
static void PrintTestName(const char * test_case, const char * test) {
printf("%s.%s", test_case, test);
}
// The following methods override what's in the TestEventListener class.
virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {}
virtual void OnTestIterationStart(const UnitTest& unit_test, int iteration);
virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test);
virtual void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) {}
virtual void OnTestCaseStart(const TestCase& test_case);
virtual void OnTestStart(const TestInfo& test_info);
virtual void OnTestPartResult(const TestPartResult& result);
virtual void OnTestEnd(const TestInfo& test_info);
virtual void OnTestCaseEnd(const TestCase& test_case);
virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test);
virtual void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) {}
virtual void OnTestIterationEnd(const UnitTest& unit_test, int iteration);
virtual void OnTestProgramEnd(const UnitTest& /*unit_test*/) {}
private:
static void PrintFailedTests(const UnitTest& unit_test);
internal::String test_case_name_;
};
// Fired before each iteration of tests starts.
void PrettyUnitTestResultPrinter::OnTestIterationStart(
const UnitTest& unit_test, int iteration) {
if (GTEST_FLAG(repeat) != 1)
printf("\nRepeating all tests (iteration %d) . . .\n\n", iteration + 1);
const char* const filter = GTEST_FLAG(filter).c_str();
// Prints the filter if it's not *. This reminds the user that some
// tests may be skipped.
if (!internal::String::CStringEquals(filter, kUniversalFilter)) {
ColoredPrintf(COLOR_YELLOW,
"Note: %s filter = %s\n", GTEST_NAME_, filter);
}
if (internal::ShouldShard(kTestTotalShards, kTestShardIndex, false)) {
ColoredPrintf(COLOR_YELLOW,
"Note: This is test shard %s of %s.\n",
internal::posix::GetEnv(kTestShardIndex),
internal::posix::GetEnv(kTestTotalShards));
}
if (GTEST_FLAG(shuffle)) {
ColoredPrintf(COLOR_YELLOW,
"Note: Randomizing tests' orders with a seed of %d .\n",
unit_test.random_seed());
}
ColoredPrintf(COLOR_GREEN, "[==========] ");
printf("Running %s from %s.\n",
FormatTestCount(unit_test.test_to_run_count()).c_str(),
FormatTestCaseCount(unit_test.test_case_to_run_count()).c_str());
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnEnvironmentsSetUpStart(
const UnitTest& /*unit_test*/) {
ColoredPrintf(COLOR_GREEN, "[----------] ");
printf("Global test environment set-up.\n");
fflush(stdout);
}
void PrettyUnitTestResultPrinter::OnTestCaseStart(const TestCase& test_case) {