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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "jni_internal.h"
#include <sys/mman.h>
#include <cmath>
#include "common_test.h"
#include "ScopedLocalRef.h"
namespace art {
class JniInternalTest : public CommonTest {
protected:
virtual void SetUp() {
CommonTest::SetUp();
vm_ = Runtime::Current()->GetJavaVM();
// Turn on -verbose:jni for the JNI tests.
gLogVerbosity.jni = true;
env_ = Thread::Current()->GetJniEnv();
ScopedLocalRef<jclass> aioobe(env_, env_->FindClass("java/lang/ArrayIndexOutOfBoundsException"));
CHECK(aioobe.get() != NULL);
aioobe_ = reinterpret_cast<jclass>(env_->NewGlobalRef(aioobe.get()));
ScopedLocalRef<jclass> sioobe(env_, env_->FindClass("java/lang/StringIndexOutOfBoundsException"));
CHECK(sioobe.get() != NULL);
sioobe_ = reinterpret_cast<jclass>(env_->NewGlobalRef(sioobe.get()));
}
virtual void TearDown() {
env_->DeleteGlobalRef(aioobe_);
env_->DeleteGlobalRef(sioobe_);
CommonTest::TearDown();
}
Method::InvokeStub* DoCompile(Method*& method, Object*& receiver, bool is_static, const char* method_name, const char* method_signature) {
const char* class_name = is_static ? "StaticLeafMethods" : "NonStaticLeafMethods";
SirtRef<ClassLoader> class_loader(LoadDex(class_name));
if (is_static) {
CompileDirectMethod(class_loader.get(), class_name, method_name, method_signature);
} else {
CompileVirtualMethod(NULL, "java.lang.Class", "isFinalizable", "()Z");
CompileDirectMethod(NULL, "java.lang.Object", "<init>", "()V");
CompileVirtualMethod(class_loader.get(), class_name, method_name, method_signature);
}
Class* c = class_linker_->FindClass(DotToDescriptor(class_name).c_str(), class_loader.get());
CHECK(c != NULL);
method = is_static ? c->FindDirectMethod(method_name, method_signature) : c->FindVirtualMethod(method_name, method_signature);
CHECK(method != NULL);
receiver = (is_static ? NULL : c->AllocObject());
Method::InvokeStub* stub = method->GetInvokeStub();
CHECK(stub != NULL);
return stub;
}
void InvokeNopMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "nop", "()V");
(*stub)(method, receiver, Thread::Current(), NULL, NULL);
}
void InvokeIdentityByteMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "identity", "(B)B");
JValue args[1];
JValue result;
args[0].i = 0;
result.b = -1;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(0, result.b);
args[0].i = -1;
result.b = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(-1, result.b);
args[0].i = SCHAR_MAX;
result.b = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(SCHAR_MAX, result.b);
args[0].i = SCHAR_MIN;
result.b = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(SCHAR_MIN, result.b);
}
void InvokeIdentityIntMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "identity", "(I)I");
JValue args[1];
JValue result;
args[0].i = 0;
result.i = -1;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(0, result.i);
args[0].i = -1;
result.i = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(-1, result.i);
args[0].i = INT_MAX;
result.i = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(INT_MAX, result.i);
args[0].i = INT_MIN;
result.i = 0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(INT_MIN, result.i);
}
void InvokeIdentityDoubleMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "identity", "(D)D");
JValue args[1];
JValue result;
args[0].d = 0.0;
result.d = -1.0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(0.0, result.d);
args[0].d = -1.0;
result.d = 0.0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(-1.0, result.d);
args[0].d = DBL_MAX;
result.d = 0.0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(DBL_MAX, result.d);
args[0].d = DBL_MIN;
result.d = 0.0;
(*stub)(method, receiver, Thread::Current(), args, &result);
EXPECT_EQ(DBL_MIN, result.d);
}
void InvokeSumIntIntMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(II)I");
JValue result;
result.i = -1;
JValue args[2];
args[0].i = 0;
args[1].i = 0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0, result.i);
result.i = 0;
args[0].i = 1;
args[1].i = 2;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(3, result.i);
result.i = 0;
args[0].i = -2;
args[1].i = 5;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(3, result.i);
result.i = 1234;
args[0].i = INT_MAX;
args[1].i = INT_MIN;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-1, result.i);
result.i = INT_MIN;
args[0].i = INT_MAX;
args[1].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-2, result.i);
}
void InvokeSumIntIntIntMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(III)I");
JValue result;
result.i = -1;
JValue args[3];
args[0].i = 0;
args[1].i = 0;
args[2].i = 0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0, result.i);
result.i = 0;
args[0].i = 1;
args[1].i = 2;
args[2].i = 3;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(6, result.i);
result.i = 0;
args[0].i = -1;
args[1].i = 2;
args[2].i = -3;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-2, result.i);
result.i = 1234;
args[0].i = INT_MAX;
args[1].i = INT_MIN;
args[2].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2147483646, result.i);
result.i = INT_MIN;
args[0].i = INT_MAX;
args[1].i = INT_MAX;
args[2].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2147483645, result.i);
}
void InvokeSumIntIntIntIntMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(IIII)I");
JValue result;
result.i = -1;
JValue args[4];
args[0].i = 0;
args[1].i = 0;
args[2].i = 0;
args[3].i = 0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0, result.i);
result.i = 0;
args[0].i = 1;
args[1].i = 2;
args[2].i = 3;
args[3].i = 4;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(10, result.i);
result.i = 0;
args[0].i = -1;
args[1].i = 2;
args[2].i = -3;
args[3].i = 4;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2, result.i);
result.i = 1234;
args[0].i = INT_MAX;
args[1].i = INT_MIN;
args[2].i = INT_MAX;
args[3].i = INT_MIN;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-2, result.i);
result.i = INT_MIN;
args[0].i = INT_MAX;
args[1].i = INT_MAX;
args[2].i = INT_MAX;
args[3].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-4, result.i);
}
void InvokeSumIntIntIntIntIntMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(IIIII)I");
JValue result;
result.i = -1.0;
JValue args[5];
args[0].i = 0;
args[1].i = 0;
args[2].i = 0;
args[3].i = 0;
args[4].i = 0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0, result.i);
result.i = 0;
args[0].i = 1;
args[1].i = 2;
args[2].i = 3;
args[3].i = 4;
args[4].i = 5;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(15, result.i);
result.i = 0;
args[0].i = -1;
args[1].i = 2;
args[2].i = -3;
args[3].i = 4;
args[4].i = -5;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-3, result.i);
result.i = 1234;
args[0].i = INT_MAX;
args[1].i = INT_MIN;
args[2].i = INT_MAX;
args[3].i = INT_MIN;
args[4].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2147483645, result.i);
result.i = INT_MIN;
args[0].i = INT_MAX;
args[1].i = INT_MAX;
args[2].i = INT_MAX;
args[3].i = INT_MAX;
args[4].i = INT_MAX;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2147483643, result.i);
}
void InvokeSumDoubleDoubleMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(DD)D");
JValue args[2];
JValue result;
args[0].d = 0.0;
args[1].d = 0.0;
result.d = -1.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0.0, result.d);
args[0].d = 1.0;
args[1].d = 2.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(3.0, result.d);
args[0].d = 1.0;
args[1].d = -2.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-1.0, result.d);
args[0].d = DBL_MAX;
args[1].d = DBL_MIN;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(1.7976931348623157e308, result.d);
args[0].d = DBL_MAX;
args[1].d = DBL_MAX;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(INFINITY, result.d);
}
void InvokeSumDoubleDoubleDoubleMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(DDD)D");
JValue args[3];
JValue result;
args[0].d = 0.0;
args[1].d = 0.0;
args[2].d = 0.0;
result.d = -1.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0.0, result.d);
args[0].d = 1.0;
args[1].d = 2.0;
args[2].d = 3.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(6.0, result.d);
args[0].d = 1.0;
args[1].d = -2.0;
args[2].d = 3.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(2.0, result.d);
}
void InvokeSumDoubleDoubleDoubleDoubleMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(DDDD)D");
JValue args[4];
JValue result;
args[0].d = 0.0;
args[1].d = 0.0;
args[2].d = 0.0;
args[3].d = 0.0;
result.d = -1.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0.0, result.d);
args[0].d = 1.0;
args[1].d = 2.0;
args[2].d = 3.0;
args[3].d = 4.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(10.0, result.d);
args[0].d = 1.0;
args[1].d = -2.0;
args[2].d = 3.0;
args[3].d = -4.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(-2.0, result.d);
}
void InvokeSumDoubleDoubleDoubleDoubleDoubleMethod(bool is_static) {
Method* method;
Object* receiver;
Method::InvokeStub* stub = DoCompile(method, receiver, is_static, "sum", "(DDDDD)D");
JValue args[5];
JValue result;
args[0].d = 0.0;
args[1].d = 0.0;
args[2].d = 0.0;
args[3].d = 0.0;
args[4].d = 0.0;
result.d = -1.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(0.0, result.d);
args[0].d = 1.0;
args[1].d = 2.0;
args[2].d = 3.0;
args[3].d = 4.0;
args[4].d = 5.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(15.0, result.d);
args[0].d = 1.0;
args[1].d = -2.0;
args[2].d = 3.0;
args[3].d = -4.0;
args[4].d = 5.0;
result.d = 0.0;
(*stub)(method, NULL, Thread::Current(), args, &result);
EXPECT_EQ(3.0, result.d);
}
JavaVMExt* vm_;
JNIEnvExt* env_;
jclass aioobe_;
jclass sioobe_;
};
TEST_F(JniInternalTest, AllocObject) {
jclass c = env_->FindClass("java/lang/String");
ASSERT_TRUE(c != NULL);
jobject o = env_->AllocObject(c);
ASSERT_TRUE(o != NULL);
// We have an instance of the class we asked for...
ASSERT_TRUE(env_->IsInstanceOf(o, c));
// ...whose fields haven't been initialized because
// we didn't call a constructor.
ASSERT_EQ(0, env_->GetIntField(o, env_->GetFieldID(c, "count", "I")));
ASSERT_EQ(0, env_->GetIntField(o, env_->GetFieldID(c, "offset", "I")));
ASSERT_TRUE(env_->GetObjectField(o, env_->GetFieldID(c, "value", "[C")) == NULL);
}
TEST_F(JniInternalTest, GetVersion) {
ASSERT_EQ(JNI_VERSION_1_6, env_->GetVersion());
}
#define EXPECT_CLASS_FOUND(NAME) \
EXPECT_TRUE(env_->FindClass(NAME) != NULL); \
EXPECT_FALSE(env_->ExceptionCheck())
#define EXPECT_CLASS_NOT_FOUND(NAME) \
EXPECT_TRUE(env_->FindClass(NAME) == NULL); \
EXPECT_TRUE(env_->ExceptionCheck()); \
env_->ExceptionClear()
std::string gCheckJniAbortMessage;
void TestCheckJniAbortHook(const std::string& reason) {
gCheckJniAbortMessage = reason;
}
TEST_F(JniInternalTest, FindClass) {
// Reference types...
EXPECT_CLASS_FOUND("java/lang/String");
// ...for arrays too, where you must include "L;".
EXPECT_CLASS_FOUND("[Ljava/lang/String;");
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
// We support . as well as / for compatibility, if -Xcheck:jni is off.
EXPECT_CLASS_FOUND("java.lang.String");
EXPECT_CLASS_NOT_FOUND("Ljava.lang.String;");
EXPECT_CLASS_FOUND("[Ljava.lang.String;");
EXPECT_CLASS_NOT_FOUND("[java.lang.String");
// You can't include the "L;" in a JNI class descriptor.
EXPECT_CLASS_NOT_FOUND("Ljava/lang/String;");
// But you must include it for an array of any reference type.
EXPECT_CLASS_NOT_FOUND("[java/lang/String");
vm_->check_jni_abort_hook = NULL;
// Primitive arrays are okay (if the primitive type is valid)...
EXPECT_CLASS_FOUND("[C");
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
EXPECT_CLASS_NOT_FOUND("[K");
vm_->check_jni_abort_hook = NULL;
// But primitive types aren't allowed...
EXPECT_CLASS_NOT_FOUND("C");
EXPECT_CLASS_NOT_FOUND("K");
}
#define EXPECT_EXCEPTION(exception_class) \
do { \
EXPECT_TRUE(env_->ExceptionCheck()); \
jthrowable exception = env_->ExceptionOccurred(); \
EXPECT_NE(static_cast<jthrowable>(NULL), exception); \
env_->ExceptionClear(); \
EXPECT_TRUE(env_->IsInstanceOf(exception, exception_class)); \
} while (false)
TEST_F(JniInternalTest, GetFieldID) {
jclass jlnsfe = env_->FindClass("java/lang/NoSuchFieldError");
ASSERT_TRUE(jlnsfe != NULL);
jclass c = env_->FindClass("java/lang/String");
ASSERT_TRUE(c != NULL);
// Wrong type.
jfieldID fid = env_->GetFieldID(c, "count", "J");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Wrong type where type doesn't exist.
fid = env_->GetFieldID(c, "count", "Lrod/jane/freddy;");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Wrong name.
fid = env_->GetFieldID(c, "Count", "I");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Good declared field lookup.
fid = env_->GetFieldID(c, "count", "I");
EXPECT_NE(static_cast<jfieldID>(NULL), fid);
EXPECT_TRUE(fid != NULL);
EXPECT_FALSE(env_->ExceptionCheck());
// Good superclass field lookup.
c = env_->FindClass("java/lang/StringBuilder");
fid = env_->GetFieldID(c, "count", "I");
EXPECT_NE(static_cast<jfieldID>(NULL), fid);
EXPECT_TRUE(fid != NULL);
EXPECT_FALSE(env_->ExceptionCheck());
// Not instance.
fid = env_->GetFieldID(c, "CASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
}
TEST_F(JniInternalTest, GetStaticFieldID) {
jclass jlnsfe = env_->FindClass("java/lang/NoSuchFieldError");
ASSERT_TRUE(jlnsfe != NULL);
jclass c = env_->FindClass("java/lang/String");
ASSERT_TRUE(c != NULL);
// Wrong type.
jfieldID fid = env_->GetStaticFieldID(c, "CASE_INSENSITIVE_ORDER", "J");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Wrong type where type doesn't exist.
fid = env_->GetStaticFieldID(c, "CASE_INSENSITIVE_ORDER", "Lrod/jane/freddy;");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Wrong name.
fid = env_->GetStaticFieldID(c, "cASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
// Good declared field lookup.
fid = env_->GetStaticFieldID(c, "CASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;");
EXPECT_NE(static_cast<jfieldID>(NULL), fid);
EXPECT_TRUE(fid != NULL);
EXPECT_FALSE(env_->ExceptionCheck());
// Not static.
fid = env_->GetStaticFieldID(c, "count", "I");
EXPECT_EQ(static_cast<jfieldID>(NULL), fid);
EXPECT_EXCEPTION(jlnsfe);
}
TEST_F(JniInternalTest, GetMethodID) {
jclass jlobject = env_->FindClass("java/lang/Object");
jclass jlstring = env_->FindClass("java/lang/String");
jclass jlnsme = env_->FindClass("java/lang/NoSuchMethodError");
// Sanity check that no exceptions are pending
ASSERT_FALSE(env_->ExceptionCheck());
// Check that java.lang.Object.foo() doesn't exist and NoSuchMethodError is
// a pending exception
jmethodID method = env_->GetMethodID(jlobject, "foo", "()V");
EXPECT_EQ(static_cast<jmethodID>(NULL), method);
EXPECT_EXCEPTION(jlnsme);
// Check that java.lang.Object.equals() does exist
method = env_->GetMethodID(jlobject, "equals", "(Ljava/lang/Object;)Z");
EXPECT_NE(static_cast<jmethodID>(NULL), method);
EXPECT_FALSE(env_->ExceptionCheck());
// Check that GetMethodID for java.lang.String.valueOf(int) fails as the
// method is static
method = env_->GetMethodID(jlstring, "valueOf", "(I)Ljava/lang/String;");
EXPECT_EQ(static_cast<jmethodID>(NULL), method);
EXPECT_EXCEPTION(jlnsme);
}
TEST_F(JniInternalTest, GetStaticMethodID) {
jclass jlobject = env_->FindClass("java/lang/Object");
jclass jlnsme = env_->FindClass("java/lang/NoSuchMethodError");
// Sanity check that no exceptions are pending
ASSERT_FALSE(env_->ExceptionCheck());
// Check that java.lang.Object.foo() doesn't exist and NoSuchMethodError is
// a pending exception
jmethodID method = env_->GetStaticMethodID(jlobject, "foo", "()V");
EXPECT_EQ(static_cast<jmethodID>(NULL), method);
EXPECT_EXCEPTION(jlnsme);
// Check that GetStaticMethodID for java.lang.Object.equals(Object) fails as
// the method is not static
method = env_->GetStaticMethodID(jlobject, "equals", "(Ljava/lang/Object;)Z");
EXPECT_EQ(static_cast<jmethodID>(NULL), method);
EXPECT_EXCEPTION(jlnsme);
// Check that java.lang.String.valueOf(int) does exist
jclass jlstring = env_->FindClass("java/lang/String");
method = env_->GetStaticMethodID(jlstring, "valueOf",
"(I)Ljava/lang/String;");
EXPECT_NE(static_cast<jmethodID>(NULL), method);
EXPECT_FALSE(env_->ExceptionCheck());
}
TEST_F(JniInternalTest, FromReflectedField_ToReflectedField) {
jclass jlrField = env_->FindClass("java/lang/reflect/Field");
jclass c = env_->FindClass("java/lang/String");
ASSERT_TRUE(c != NULL);
jfieldID fid = env_->GetFieldID(c, "count", "I");
ASSERT_TRUE(fid != NULL);
// Turn the fid into a java.lang.reflect.Field...
jobject field = env_->ToReflectedField(c, fid, JNI_FALSE);
ASSERT_TRUE(c != NULL);
ASSERT_TRUE(env_->IsInstanceOf(field, jlrField));
// ...and back again.
jfieldID fid2 = env_->FromReflectedField(field);
ASSERT_TRUE(fid2 != NULL);
}
TEST_F(JniInternalTest, FromReflectedMethod_ToReflectedMethod) {
jclass jlrMethod = env_->FindClass("java/lang/reflect/Method");
jclass c = env_->FindClass("java/lang/String");
ASSERT_TRUE(c != NULL);
jmethodID mid = env_->GetMethodID(c, "length", "()I");
ASSERT_TRUE(mid != NULL);
// Turn the mid into a java.lang.reflect.Method...
jobject method = env_->ToReflectedMethod(c, mid, JNI_FALSE);
ASSERT_TRUE(c != NULL);
ASSERT_TRUE(env_->IsInstanceOf(method, jlrMethod));
// ...and back again.
jmethodID mid2 = env_->FromReflectedMethod(method);
ASSERT_TRUE(mid2 != NULL);
}
void BogusMethod() {
// You can't pass NULL function pointers to RegisterNatives.
}
TEST_F(JniInternalTest, RegisterNatives) {
jclass jlobject = env_->FindClass("java/lang/Object");
jclass jlnsme = env_->FindClass("java/lang/NoSuchMethodError");
// Sanity check that no exceptions are pending
ASSERT_FALSE(env_->ExceptionCheck());
// Check that registering to a non-existent java.lang.Object.foo() causes a
// NoSuchMethodError
{
JNINativeMethod methods[] = { { "foo", "()V", NULL } };
env_->RegisterNatives(jlobject, methods, 1);
}
EXPECT_EXCEPTION(jlnsme);
// Check that registering non-native methods causes a NoSuchMethodError
{
JNINativeMethod methods[] = { { "equals", "(Ljava/lang/Object;)Z", NULL } };
env_->RegisterNatives(jlobject, methods, 1);
}
EXPECT_EXCEPTION(jlnsme);
// Check that registering native methods is successful
{
JNINativeMethod methods[] = { { "notify", "()V", reinterpret_cast<void*>(BogusMethod) } };
env_->RegisterNatives(jlobject, methods, 1);
}
EXPECT_FALSE(env_->ExceptionCheck());
env_->UnregisterNatives(jlobject);
}
#define EXPECT_PRIMITIVE_ARRAY(new_fn, get_region_fn, set_region_fn, get_elements_fn, release_elements_fn, scalar_type, expected_class_descriptor) \
jsize size = 4; \
/* Allocate an array and check it has the right type and length. */ \
scalar_type ## Array a = env_->new_fn(size); \
EXPECT_TRUE(a != NULL); \
EXPECT_TRUE(env_->IsInstanceOf(a, env_->FindClass(expected_class_descriptor))); \
EXPECT_EQ(size, env_->GetArrayLength(a)); \
/* AIOOBE for negative start offset. */ \
env_->get_region_fn(a, -1, 1, NULL); \
EXPECT_EXCEPTION(aioobe_); \
env_->set_region_fn(a, -1, 1, NULL); \
EXPECT_EXCEPTION(aioobe_); \
/* AIOOBE for negative length. */ \
env_->get_region_fn(a, 0, -1, NULL); \
EXPECT_EXCEPTION(aioobe_); \
env_->set_region_fn(a, 0, -1, NULL); \
EXPECT_EXCEPTION(aioobe_); \
/* AIOOBE for buffer overrun. */ \
env_->get_region_fn(a, size - 1, size, NULL); \
EXPECT_EXCEPTION(aioobe_); \
env_->set_region_fn(a, size - 1, size, NULL); \
EXPECT_EXCEPTION(aioobe_); \
/* Prepare a couple of buffers. */ \
UniquePtr<scalar_type[]> src_buf(new scalar_type[size]); \
UniquePtr<scalar_type[]> dst_buf(new scalar_type[size]); \
for (jsize i = 0; i < size; ++i) { src_buf[i] = scalar_type(i); } \
for (jsize i = 0; i < size; ++i) { dst_buf[i] = scalar_type(-1); } \
/* Copy all of src_buf onto the heap. */ \
env_->set_region_fn(a, 0, size, &src_buf[0]); \
/* Copy back only part. */ \
env_->get_region_fn(a, 1, size - 2, &dst_buf[1]); \
EXPECT_NE(memcmp(&src_buf[0], &dst_buf[0], size * sizeof(scalar_type)), 0) << "short copy equal"; \
/* Copy the missing pieces. */ \
env_->get_region_fn(a, 0, 1, &dst_buf[0]); \
env_->get_region_fn(a, size - 1, 1, &dst_buf[size - 1]); \
EXPECT_EQ(memcmp(&src_buf[0], &dst_buf[0], size * sizeof(scalar_type)), 0) << "fixed copy not equal"; \
/* Copy back the whole array. */ \
env_->get_region_fn(a, 0, size, &dst_buf[0]); \
EXPECT_EQ(memcmp(&src_buf[0], &dst_buf[0], size * sizeof(scalar_type)), 0) << "full copy not equal"; \
/* GetPrimitiveArrayCritical */ \
void* v = env_->GetPrimitiveArrayCritical(a, NULL); \
EXPECT_EQ(memcmp(&src_buf[0], v, size * sizeof(scalar_type)), 0) << "GetPrimitiveArrayCritical not equal"; \
env_->ReleasePrimitiveArrayCritical(a, v, 0); \
/* GetXArrayElements */ \
scalar_type* xs = env_->get_elements_fn(a, NULL); \
EXPECT_EQ(memcmp(&src_buf[0], xs, size * sizeof(scalar_type)), 0) << # get_elements_fn " not equal"; \
env_->release_elements_fn(a, xs, 0); \
EXPECT_EQ(reinterpret_cast<uintptr_t>(v), reinterpret_cast<uintptr_t>(xs))
TEST_F(JniInternalTest, BooleanArrays) {
EXPECT_PRIMITIVE_ARRAY(NewBooleanArray, GetBooleanArrayRegion, SetBooleanArrayRegion, GetBooleanArrayElements, ReleaseBooleanArrayElements, jboolean, "[Z");
}
TEST_F(JniInternalTest, ByteArrays) {
EXPECT_PRIMITIVE_ARRAY(NewByteArray, GetByteArrayRegion, SetByteArrayRegion, GetByteArrayElements, ReleaseByteArrayElements, jbyte, "[B");
}
TEST_F(JniInternalTest, CharArrays) {
EXPECT_PRIMITIVE_ARRAY(NewCharArray, GetCharArrayRegion, SetCharArrayRegion, GetCharArrayElements, ReleaseCharArrayElements, jchar, "[C");
}
TEST_F(JniInternalTest, DoubleArrays) {
EXPECT_PRIMITIVE_ARRAY(NewDoubleArray, GetDoubleArrayRegion, SetDoubleArrayRegion, GetDoubleArrayElements, ReleaseDoubleArrayElements, jdouble, "[D");
}
TEST_F(JniInternalTest, FloatArrays) {
EXPECT_PRIMITIVE_ARRAY(NewFloatArray, GetFloatArrayRegion, SetFloatArrayRegion, GetFloatArrayElements, ReleaseFloatArrayElements, jfloat, "[F");
}
TEST_F(JniInternalTest, IntArrays) {
EXPECT_PRIMITIVE_ARRAY(NewIntArray, GetIntArrayRegion, SetIntArrayRegion, GetIntArrayElements, ReleaseIntArrayElements, jint, "[I");
}
TEST_F(JniInternalTest, LongArrays) {
EXPECT_PRIMITIVE_ARRAY(NewLongArray, GetLongArrayRegion, SetLongArrayRegion, GetLongArrayElements, ReleaseLongArrayElements, jlong, "[J");
}
TEST_F(JniInternalTest, ShortArrays) {
EXPECT_PRIMITIVE_ARRAY(NewShortArray, GetShortArrayRegion, SetShortArrayRegion, GetShortArrayElements, ReleaseShortArrayElements, jshort, "[S");
}
TEST_F(JniInternalTest, NewObjectArray) {
// TODO: death tests for negative array sizes.
// TODO: check non-NULL initial elements.
jclass element_class = env_->FindClass("java/lang/String");
ASSERT_TRUE(element_class != NULL);
jclass array_class = env_->FindClass("[Ljava/lang/String;");
ASSERT_TRUE(array_class != NULL);
jobjectArray a;
a = env_->NewObjectArray(0, element_class, NULL);
EXPECT_TRUE(a != NULL);
EXPECT_TRUE(env_->IsInstanceOf(a, array_class));
EXPECT_EQ(0, env_->GetArrayLength(a));
a = env_->NewObjectArray(1, element_class, NULL);
EXPECT_TRUE(a != NULL);
EXPECT_TRUE(env_->IsInstanceOf(a, array_class));
EXPECT_EQ(1, env_->GetArrayLength(a));
EXPECT_TRUE(env_->IsSameObject(env_->GetObjectArrayElement(a, 0), NULL));
jstring s = env_->NewStringUTF("poop");
a = env_->NewObjectArray(2, element_class, s);
EXPECT_TRUE(a != NULL);
EXPECT_TRUE(env_->IsInstanceOf(a, array_class));
EXPECT_EQ(2, env_->GetArrayLength(a));
EXPECT_TRUE(env_->IsSameObject(env_->GetObjectArrayElement(a, 0), s));
EXPECT_TRUE(env_->IsSameObject(env_->GetObjectArrayElement(a, 1), s));
}
TEST_F(JniInternalTest, GetArrayLength) {
// Already tested in NewObjectArray/NewPrimitiveArray.
}
TEST_F(JniInternalTest, GetObjectClass) {
jclass string_class = env_->FindClass("java/lang/String");
ASSERT_TRUE(string_class != NULL);
jclass class_class = env_->FindClass("java/lang/Class");
ASSERT_TRUE(class_class != NULL);
jstring s = env_->NewStringUTF("poop");
jclass c = env_->GetObjectClass(s);
ASSERT_TRUE(env_->IsSameObject(string_class, c));
jclass c2 = env_->GetObjectClass(c);
ASSERT_TRUE(env_->IsSameObject(class_class, env_->GetObjectClass(c2)));
}
TEST_F(JniInternalTest, GetSuperclass) {
jclass object_class = env_->FindClass("java/lang/Object");
ASSERT_TRUE(object_class != NULL);
jclass string_class = env_->FindClass("java/lang/String");
ASSERT_TRUE(string_class != NULL);
jclass runnable_interface = env_->FindClass("java/lang/Runnable");
ASSERT_TRUE(runnable_interface != NULL);
ASSERT_TRUE(env_->IsSameObject(object_class, env_->GetSuperclass(string_class)));
ASSERT_TRUE(env_->GetSuperclass(object_class) == NULL);
ASSERT_TRUE(env_->IsSameObject(object_class, env_->GetSuperclass(runnable_interface)));
}
TEST_F(JniInternalTest, IsAssignableFrom) {
jclass object_class = env_->FindClass("java/lang/Object");
ASSERT_TRUE(object_class != NULL);
jclass string_class = env_->FindClass("java/lang/String");
ASSERT_TRUE(string_class != NULL);
ASSERT_TRUE(env_->IsAssignableFrom(object_class, string_class));
ASSERT_FALSE(env_->IsAssignableFrom(string_class, object_class));
}
TEST_F(JniInternalTest, GetObjectRefType) {
jclass local = env_->FindClass("java/lang/Object");
ASSERT_TRUE(local != NULL);
EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(local));
jobject global = env_->NewGlobalRef(local);
EXPECT_EQ(JNIGlobalRefType, env_->GetObjectRefType(global));
jweak weak_global = env_->NewWeakGlobalRef(local);
EXPECT_EQ(JNIWeakGlobalRefType, env_->GetObjectRefType(weak_global));
jobject invalid = reinterpret_cast<jobject>(this);
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(invalid));
// TODO: invoke a native method and test that its arguments are considered local references.
}
TEST_F(JniInternalTest, NewStringUTF) {
EXPECT_TRUE(env_->NewStringUTF(NULL) == NULL);
jstring s;
s = env_->NewStringUTF("");
EXPECT_TRUE(s != NULL);
EXPECT_EQ(0, env_->GetStringLength(s));
EXPECT_EQ(0, env_->GetStringUTFLength(s));
s = env_->NewStringUTF("hello");
EXPECT_TRUE(s != NULL);
EXPECT_EQ(5, env_->GetStringLength(s));
EXPECT_EQ(5, env_->GetStringUTFLength(s));
// TODO: check some non-ASCII strings.
}
TEST_F(JniInternalTest, NewString) {
jchar chars[] = { 'h', 'i' };
jstring s;
s = env_->NewString(chars, 0);
EXPECT_TRUE(s != NULL);
EXPECT_EQ(0, env_->GetStringLength(s));
EXPECT_EQ(0, env_->GetStringUTFLength(s));
s = env_->NewString(chars, 2);
EXPECT_TRUE(s != NULL);
EXPECT_EQ(2, env_->GetStringLength(s));
EXPECT_EQ(2, env_->GetStringUTFLength(s));
// TODO: check some non-ASCII strings.
}
TEST_F(JniInternalTest, NewStringNullCharsZeroLength) {
jstring s = env_->NewString(NULL, 0);
EXPECT_TRUE(s != NULL);
EXPECT_EQ(0, env_->GetStringLength(s));
}
// TODO: fix gtest death tests on host http://b/5690440 (and target)
TEST_F(JniInternalTest, DISABLED_NewStringNullCharsNonzeroLength) {
ASSERT_DEATH(env_->NewString(NULL, 1), "");
}
TEST_F(JniInternalTest, GetStringLength_GetStringUTFLength) {
// Already tested in the NewString/NewStringUTF tests.
}
TEST_F(JniInternalTest, GetStringRegion_GetStringUTFRegion) {
jstring s = env_->NewStringUTF("hello");
ASSERT_TRUE(s != NULL);
env_->GetStringRegion(s, -1, 0, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringRegion(s, 0, -1, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringRegion(s, 0, 10, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringRegion(s, 10, 1, NULL);
EXPECT_EXCEPTION(sioobe_);
jchar chars[4] = { 'x', 'x', 'x', 'x' };
env_->GetStringRegion(s, 1, 2, &chars[1]);
EXPECT_EQ('x', chars[0]);
EXPECT_EQ('e', chars[1]);
EXPECT_EQ('l', chars[2]);
EXPECT_EQ('x', chars[3]);
env_->GetStringUTFRegion(s, -1, 0, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringUTFRegion(s, 0, -1, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringUTFRegion(s, 0, 10, NULL);
EXPECT_EXCEPTION(sioobe_);
env_->GetStringUTFRegion(s, 10, 1, NULL);
EXPECT_EXCEPTION(sioobe_);
char bytes[4] = { 'x', 'x', 'x', 'x' };
env_->GetStringUTFRegion(s, 1, 2, &bytes[1]);
EXPECT_EQ('x', bytes[0]);
EXPECT_EQ('e', bytes[1]);
EXPECT_EQ('l', bytes[2]);
EXPECT_EQ('x', bytes[3]);
}
TEST_F(JniInternalTest, GetStringUTFChars_ReleaseStringUTFChars) {
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
// Passing in a NULL jstring is ignored normally, but caught by -Xcheck:jni.
EXPECT_TRUE(env_->GetStringUTFChars(NULL, NULL) == NULL);
vm_->check_jni_abort_hook = NULL;
jstring s = env_->NewStringUTF("hello");
ASSERT_TRUE(s != NULL);
const char* utf = env_->GetStringUTFChars(s, NULL);
EXPECT_STREQ("hello", utf);
env_->ReleaseStringUTFChars(s, utf);
jboolean is_copy = JNI_FALSE;
utf = env_->GetStringUTFChars(s, &is_copy);
EXPECT_EQ(JNI_TRUE, is_copy);
EXPECT_STREQ("hello", utf);
env_->ReleaseStringUTFChars(s, utf);
}
TEST_F(JniInternalTest, GetStringChars_ReleaseStringChars) {
jstring s = env_->NewStringUTF("hello");
ASSERT_TRUE(s != NULL);
jchar expected[] = { 'h', 'e', 'l', 'l', 'o' };
const jchar* chars = env_->GetStringChars(s, NULL);
EXPECT_EQ(expected[0], chars[0]);
EXPECT_EQ(expected[1], chars[1]);
EXPECT_EQ(expected[2], chars[2]);
EXPECT_EQ(expected[3], chars[3]);
EXPECT_EQ(expected[4], chars[4]);
env_->ReleaseStringChars(s, chars);
jboolean is_copy = JNI_FALSE;
chars = env_->GetStringChars(s, &is_copy);
EXPECT_EQ(JNI_FALSE, is_copy);
EXPECT_EQ(expected[0], chars[0]);
EXPECT_EQ(expected[1], chars[1]);
EXPECT_EQ(expected[2], chars[2]);
EXPECT_EQ(expected[3], chars[3]);
EXPECT_EQ(expected[4], chars[4]);
env_->ReleaseStringChars(s, chars);
}
TEST_F(JniInternalTest, GetStringCritical_ReleaseStringCritical) {
jstring s = env_->NewStringUTF("hello");
ASSERT_TRUE(s != NULL);
jchar expected[] = { 'h', 'e', 'l', 'l', 'o' };
const jchar* chars = env_->GetStringCritical(s, NULL);
EXPECT_EQ(expected[0], chars[0]);
EXPECT_EQ(expected[1], chars[1]);
EXPECT_EQ(expected[2], chars[2]);
EXPECT_EQ(expected[3], chars[3]);
EXPECT_EQ(expected[4], chars[4]);
env_->ReleaseStringCritical(s, chars);
jboolean is_copy = JNI_FALSE;
chars = env_->GetStringCritical(s, &is_copy);
EXPECT_EQ(JNI_FALSE, is_copy);
EXPECT_EQ(expected[0], chars[0]);
EXPECT_EQ(expected[1], chars[1]);
EXPECT_EQ(expected[2], chars[2]);
EXPECT_EQ(expected[3], chars[3]);
EXPECT_EQ(expected[4], chars[4]);
env_->ReleaseStringCritical(s, chars);
}
TEST_F(JniInternalTest, GetObjectArrayElement_SetObjectArrayElement) {
jclass c = env_->FindClass("java/lang/Object");
ASSERT_TRUE(c != NULL);
jobjectArray array = env_->NewObjectArray(1, c, NULL);
EXPECT_TRUE(array != NULL);
EXPECT_TRUE(env_->GetObjectArrayElement(array, 0) == NULL);
env_->SetObjectArrayElement(array, 0, c);
EXPECT_TRUE(env_->IsSameObject(env_->GetObjectArrayElement(array, 0), c));
// ArrayIndexOutOfBounds for negative index.
env_->SetObjectArrayElement(array, -1, c);
EXPECT_EXCEPTION(aioobe_);
// ArrayIndexOutOfBounds for too-large index.
env_->SetObjectArrayElement(array, 1, c);
EXPECT_EXCEPTION(aioobe_);
// TODO: check ArrayStoreException thrown for bad types.
}
#define EXPECT_STATIC_PRIMITIVE_FIELD(type, field_name, sig, value1, value2) \
do { \
jfieldID fid = env_->GetStaticFieldID(c, field_name, sig); \
EXPECT_TRUE(fid != NULL); \
env_->SetStatic ## type ## Field(c, fid, value1); \
EXPECT_TRUE(value1 == env_->GetStatic ## type ## Field(c, fid)); \
env_->SetStatic ## type ## Field(c, fid, value2); \
EXPECT_TRUE(value2 == env_->GetStatic ## type ## Field(c, fid)); \
} while (false)
#define EXPECT_PRIMITIVE_FIELD(instance, type, field_name, sig, value1, value2) \
do { \
jfieldID fid = env_->GetFieldID(c, field_name, sig); \
EXPECT_TRUE(fid != NULL); \
env_->Set ## type ## Field(instance, fid, value1); \
EXPECT_TRUE(value1 == env_->Get ## type ## Field(instance, fid)); \
env_->Set ## type ## Field(instance, fid, value2); \
EXPECT_TRUE(value2 == env_->Get ## type ## Field(instance, fid)); \
} while (false)
#if !defined(ART_USE_LLVM_COMPILER)
TEST_F(JniInternalTest, GetPrimitiveField_SetPrimitiveField) {
SirtRef<ClassLoader> class_loader(LoadDex("AllFields"));
runtime_->Start();
jclass c = env_->FindClass("AllFields");
ASSERT_TRUE(c != NULL);
jobject o = env_->AllocObject(c);
ASSERT_TRUE(o != NULL);
EXPECT_STATIC_PRIMITIVE_FIELD(Boolean, "sZ", "Z", true, false);
EXPECT_STATIC_PRIMITIVE_FIELD(Byte, "sB", "B", 1, 2);
EXPECT_STATIC_PRIMITIVE_FIELD(Char, "sC", "C", 'a', 'b');
EXPECT_STATIC_PRIMITIVE_FIELD(Double, "sD", "D", 1.0, 2.0);
EXPECT_STATIC_PRIMITIVE_FIELD(Float, "sF", "F", 1.0, 2.0);
EXPECT_STATIC_PRIMITIVE_FIELD(Int, "sI", "I", 1, 2);
EXPECT_STATIC_PRIMITIVE_FIELD(Long, "sJ", "J", 1, 2);
EXPECT_STATIC_PRIMITIVE_FIELD(Short, "sS", "S", 1, 2);
EXPECT_PRIMITIVE_FIELD(o, Boolean, "iZ", "Z", true, false);
EXPECT_PRIMITIVE_FIELD(o, Byte, "iB", "B", 1, 2);
EXPECT_PRIMITIVE_FIELD(o, Char, "iC", "C", 'a', 'b');
EXPECT_PRIMITIVE_FIELD(o, Double, "iD", "D", 1.0, 2.0);
EXPECT_PRIMITIVE_FIELD(o, Float, "iF", "F", 1.0, 2.0);
EXPECT_PRIMITIVE_FIELD(o, Int, "iI", "I", 1, 2);
EXPECT_PRIMITIVE_FIELD(o, Long, "iJ", "J", 1, 2);
EXPECT_PRIMITIVE_FIELD(o, Short, "iS", "S", 1, 2);
}
TEST_F(JniInternalTest, GetObjectField_SetObjectField) {
SirtRef<ClassLoader> class_loader(LoadDex("AllFields"));
runtime_->Start();
jclass c = env_->FindClass("AllFields");
ASSERT_TRUE(c != NULL);
jobject o = env_->AllocObject(c);
ASSERT_TRUE(o != NULL);
jstring s1 = env_->NewStringUTF("hello");
ASSERT_TRUE(s1 != NULL);
jstring s2 = env_->NewStringUTF("world");
ASSERT_TRUE(s2 != NULL);
jfieldID s_fid = env_->GetStaticFieldID(c, "sObject", "Ljava/lang/Object;");
ASSERT_TRUE(s_fid != NULL);
jfieldID i_fid = env_->GetFieldID(c, "iObject", "Ljava/lang/Object;");
ASSERT_TRUE(i_fid != NULL);
env_->SetStaticObjectField(c, s_fid, s1);
ASSERT_TRUE(env_->IsSameObject(s1, env_->GetStaticObjectField(c, s_fid)));
env_->SetStaticObjectField(c, s_fid, s2);
ASSERT_TRUE(env_->IsSameObject(s2, env_->GetStaticObjectField(c, s_fid)));
env_->SetObjectField(o, i_fid, s1);
ASSERT_TRUE(env_->IsSameObject(s1, env_->GetObjectField(o, i_fid)));
env_->SetObjectField(o, i_fid, s2);
ASSERT_TRUE(env_->IsSameObject(s2, env_->GetObjectField(o, i_fid)));
}
#endif
TEST_F(JniInternalTest, NewLocalRef_NULL) {
EXPECT_TRUE(env_->NewLocalRef(NULL) == NULL);
}
TEST_F(JniInternalTest, NewLocalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewLocalRef(s);
EXPECT_TRUE(o != NULL);
EXPECT_TRUE(o != s);
EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(o));
}
TEST_F(JniInternalTest, DeleteLocalRef_NULL) {
env_->DeleteLocalRef(NULL);
}
TEST_F(JniInternalTest, DeleteLocalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
env_->DeleteLocalRef(s);
// Currently, deleting an already-deleted reference is just a warning.
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
env_->DeleteLocalRef(s);
vm_->check_jni_abort_hook = NULL;
s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewLocalRef(s);
ASSERT_TRUE(o != NULL);
env_->DeleteLocalRef(s);
env_->DeleteLocalRef(o);
}
TEST_F(JniInternalTest, PushLocalFrame_PopLocalFrame) {
jobject original = env_->NewStringUTF("");
ASSERT_TRUE(original != NULL);
jobject outer;
jobject inner1, inner2;
Object* inner2_direct_pointer;
{
env_->PushLocalFrame(4);
outer = env_->NewLocalRef(original);
{
env_->PushLocalFrame(4);
inner1 = env_->NewLocalRef(outer);
inner2 = env_->NewStringUTF("survivor");
inner2_direct_pointer = Decode<Object*>(env_, inner2);
env_->PopLocalFrame(inner2);
}
EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(original));
EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(outer));
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(inner1));
// Our local reference for the survivor is invalid because the survivor
// gets a new local reference...
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(inner2));
// ...but the survivor should be in the local reference table.
EXPECT_TRUE(env_->locals.ContainsDirectPointer(inner2_direct_pointer));
env_->PopLocalFrame(NULL);
}
EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(original));
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(outer));
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(inner1));
EXPECT_EQ(JNIInvalidRefType, env_->GetObjectRefType(inner2));
}
TEST_F(JniInternalTest, NewGlobalRef_NULL) {
EXPECT_TRUE(env_->NewGlobalRef(NULL) == NULL);
}
TEST_F(JniInternalTest, NewGlobalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewGlobalRef(s);
EXPECT_TRUE(o != NULL);
EXPECT_TRUE(o != s);
// TODO: check that o is a global reference.
}
TEST_F(JniInternalTest, DeleteGlobalRef_NULL) {
env_->DeleteGlobalRef(NULL);
}
TEST_F(JniInternalTest, DeleteGlobalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewGlobalRef(s);
ASSERT_TRUE(o != NULL);
env_->DeleteGlobalRef(o);
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
// Currently, deleting an already-deleted reference is just a warning.
env_->DeleteGlobalRef(o);
vm_->check_jni_abort_hook = NULL;
jobject o1 = env_->NewGlobalRef(s);
ASSERT_TRUE(o1 != NULL);
jobject o2 = env_->NewGlobalRef(s);
ASSERT_TRUE(o2 != NULL);
env_->DeleteGlobalRef(o1);
env_->DeleteGlobalRef(o2);
}
TEST_F(JniInternalTest, NewWeakGlobalRef_NULL) {
EXPECT_TRUE(env_->NewWeakGlobalRef(NULL) == NULL);
}
TEST_F(JniInternalTest, NewWeakGlobalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewWeakGlobalRef(s);
EXPECT_TRUE(o != NULL);
EXPECT_TRUE(o != s);
// TODO: check that o is a weak global reference.
}
TEST_F(JniInternalTest, DeleteWeakGlobalRef_NULL) {
env_->DeleteWeakGlobalRef(NULL);
}
TEST_F(JniInternalTest, DeleteWeakGlobalRef) {
jstring s = env_->NewStringUTF("");
ASSERT_TRUE(s != NULL);
jobject o = env_->NewWeakGlobalRef(s);
ASSERT_TRUE(o != NULL);
env_->DeleteWeakGlobalRef(o);
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
// Currently, deleting an already-deleted reference is just a warning.
env_->DeleteWeakGlobalRef(o);
vm_->check_jni_abort_hook = NULL;
jobject o1 = env_->NewWeakGlobalRef(s);
ASSERT_TRUE(o1 != NULL);
jobject o2 = env_->NewWeakGlobalRef(s);
ASSERT_TRUE(o2 != NULL);
env_->DeleteWeakGlobalRef(o1);
env_->DeleteWeakGlobalRef(o2);
}
TEST_F(JniInternalTest, StaticMainMethod) {
SirtRef<ClassLoader> class_loader(LoadDex("Main"));
CompileDirectMethod(class_loader.get(), "Main", "main", "([Ljava/lang/String;)V");
Class* klass = class_linker_->FindClass("LMain;", class_loader.get());
ASSERT_TRUE(klass != NULL);
Method* method = klass->FindDirectMethod("main", "([Ljava/lang/String;)V");
ASSERT_TRUE(method != NULL);
Method::InvokeStub* stub = method->GetInvokeStub();
JValue args[1];
args[0].l = NULL;
(*stub)(method, NULL, Thread::Current(), args, NULL);
}
TEST_F(JniInternalTest, StaticNopMethod) {
InvokeNopMethod(true);
}
TEST_F(JniInternalTest, NonStaticNopMethod) {
InvokeNopMethod(false);
}
TEST_F(JniInternalTest, StaticIdentityByteMethod) {
InvokeIdentityByteMethod(true);
}
TEST_F(JniInternalTest, NonStaticIdentityByteMethod) {
InvokeIdentityByteMethod(false);
}
TEST_F(JniInternalTest, StaticIdentityIntMethod) {
InvokeIdentityIntMethod(true);
}
TEST_F(JniInternalTest, NonStaticIdentityIntMethod) {
InvokeIdentityIntMethod(false);
}
TEST_F(JniInternalTest, StaticIdentityDoubleMethod) {
InvokeIdentityDoubleMethod(true);
}
TEST_F(JniInternalTest, NonStaticIdentityDoubleMethod) {
InvokeIdentityDoubleMethod(false);
}
TEST_F(JniInternalTest, StaticSumIntIntMethod) {
InvokeSumIntIntMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumIntIntMethod) {
InvokeSumIntIntMethod(false);
}
TEST_F(JniInternalTest, StaticSumIntIntIntMethod) {
InvokeSumIntIntIntMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumIntIntIntMethod) {
InvokeSumIntIntIntMethod(false);
}
TEST_F(JniInternalTest, StaticSumIntIntIntIntMethod) {
InvokeSumIntIntIntIntMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumIntIntIntIntMethod) {
InvokeSumIntIntIntIntMethod(false);
}
TEST_F(JniInternalTest, StaticSumIntIntIntIntIntMethod) {
InvokeSumIntIntIntIntIntMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumIntIntIntIntIntMethod) {
InvokeSumIntIntIntIntIntMethod(false);
}
TEST_F(JniInternalTest, StaticSumDoubleDoubleMethod) {
InvokeSumDoubleDoubleMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumDoubleDoubleMethod) {
InvokeSumDoubleDoubleMethod(false);
}
TEST_F(JniInternalTest, StaticSumDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleMethod(false);
}
TEST_F(JniInternalTest, StaticSumDoubleDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleDoubleMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumDoubleDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleDoubleMethod(false);
}
TEST_F(JniInternalTest, StaticSumDoubleDoubleDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleDoubleDoubleMethod(true);
}
TEST_F(JniInternalTest, NonStaticSumDoubleDoubleDoubleDoubleDoubleMethod) {
InvokeSumDoubleDoubleDoubleDoubleDoubleMethod(false);
}
TEST_F(JniInternalTest, Throw) {
EXPECT_EQ(JNI_ERR, env_->Throw(NULL));
jclass exception_class = env_->FindClass("java/lang/RuntimeException");
ASSERT_TRUE(exception_class != NULL);
jthrowable exception = reinterpret_cast<jthrowable>(env_->AllocObject(exception_class));
ASSERT_TRUE(exception != NULL);
EXPECT_EQ(JNI_OK, env_->Throw(exception));
EXPECT_TRUE(env_->ExceptionCheck());
jthrowable thrown_exception = env_->ExceptionOccurred();
env_->ExceptionClear();
EXPECT_TRUE(env_->IsSameObject(exception, thrown_exception));
}
TEST_F(JniInternalTest, ThrowNew) {
EXPECT_EQ(JNI_ERR, env_->Throw(NULL));
jclass exception_class = env_->FindClass("java/lang/RuntimeException");
ASSERT_TRUE(exception_class != NULL);
jthrowable thrown_exception;
EXPECT_EQ(JNI_OK, env_->ThrowNew(exception_class, "hello world"));
EXPECT_TRUE(env_->ExceptionCheck());
thrown_exception = env_->ExceptionOccurred();
env_->ExceptionClear();
EXPECT_TRUE(env_->IsInstanceOf(thrown_exception, exception_class));
EXPECT_EQ(JNI_OK, env_->ThrowNew(exception_class, NULL));
EXPECT_TRUE(env_->ExceptionCheck());
thrown_exception = env_->ExceptionOccurred();
env_->ExceptionClear();
EXPECT_TRUE(env_->IsInstanceOf(thrown_exception, exception_class));
}
// TODO: this test is DISABLED until we can actually run java.nio.Buffer's <init>.
TEST_F(JniInternalTest, DISABLED_NewDirectBuffer_GetDirectBufferAddress_GetDirectBufferCapacity) {
jclass buffer_class = env_->FindClass("java/nio/Buffer");
ASSERT_TRUE(buffer_class != NULL);
char bytes[1024];
jobject buffer = env_->NewDirectByteBuffer(bytes, sizeof(bytes));
ASSERT_TRUE(buffer != NULL);
ASSERT_TRUE(env_->IsInstanceOf(buffer, buffer_class));
ASSERT_TRUE(env_->GetDirectBufferAddress(buffer) == bytes);
ASSERT_TRUE(env_->GetDirectBufferCapacity(buffer) == sizeof(bytes));
}
TEST_F(JniInternalTest, MonitorEnterExit) {
// Create an object to torture
jclass object_class = env_->FindClass("java/lang/Object");
ASSERT_TRUE(object_class != NULL);
jobject object = env_->AllocObject(object_class);
ASSERT_TRUE(object != NULL);
// Expected class of exceptions
jclass imse_class = env_->FindClass("java/lang/IllegalMonitorStateException");
ASSERT_TRUE(imse_class != NULL);
jthrowable thrown_exception;
// Unlock of unowned monitor
env_->MonitorExit(object);
EXPECT_TRUE(env_->ExceptionCheck());
thrown_exception = env_->ExceptionOccurred();
env_->ExceptionClear();
EXPECT_TRUE(env_->IsInstanceOf(thrown_exception, imse_class));
// Lock of unowned monitor
env_->MonitorEnter(object);
EXPECT_FALSE(env_->ExceptionCheck());
// Regular unlock
env_->MonitorExit(object);
EXPECT_FALSE(env_->ExceptionCheck());
// Recursively lock a lot
size_t max_recursive_lock = 1024;
for (size_t i = 0; i < max_recursive_lock; i++) {
env_->MonitorEnter(object);
EXPECT_FALSE(env_->ExceptionCheck());
}
// Recursively unlock a lot
for (size_t i = 0; i < max_recursive_lock; i++) {
env_->MonitorExit(object);
EXPECT_FALSE(env_->ExceptionCheck());
}
// Unlock of unowned monitor
env_->MonitorExit(object);
EXPECT_TRUE(env_->ExceptionCheck());
thrown_exception = env_->ExceptionOccurred();
env_->ExceptionClear();
EXPECT_TRUE(env_->IsInstanceOf(thrown_exception, imse_class));
// It's an error to call MonitorEnter or MonitorExit on NULL.
vm_->check_jni_abort_hook = TestCheckJniAbortHook;
env_->MonitorEnter(NULL);
EXPECT_TRUE(gCheckJniAbortMessage.find("in call to MonitorEnter") != std::string::npos);
env_->MonitorExit(NULL);
EXPECT_TRUE(gCheckJniAbortMessage.find("in call to MonitorExit") != std::string::npos);
vm_->check_jni_abort_hook = NULL;
}
} // namespace art