| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This file tests the C++ Mojo system core wrappers. |
| // TODO(vtl): Maybe rename "CoreCppTest" -> "CoreTest" if/when this gets |
| // compiled into a different binary from the C API tests. |
| |
| #include "mojo/public/cpp/system/core.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <map> |
| #include <utility> |
| |
| #include "mojo/public/cpp/system/wait.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace mojo { |
| namespace { |
| |
| const MojoHandleSignals kSignalReadableWritable = |
| MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE; |
| |
| const MojoHandleSignals kSignalAll = MOJO_HANDLE_SIGNAL_READABLE | |
| MOJO_HANDLE_SIGNAL_WRITABLE | |
| MOJO_HANDLE_SIGNAL_PEER_CLOSED; |
| |
| TEST(CoreCppTest, GetTimeTicksNow) { |
| const MojoTimeTicks start = GetTimeTicksNow(); |
| EXPECT_NE(static_cast<MojoTimeTicks>(0), start) |
| << "GetTimeTicksNow should return nonzero value"; |
| } |
| |
| TEST(CoreCppTest, Basic) { |
| // Basic |Handle| implementation: |
| { |
| EXPECT_EQ(MOJO_HANDLE_INVALID, kInvalidHandleValue); |
| |
| Handle h0; |
| EXPECT_EQ(kInvalidHandleValue, h0.value()); |
| EXPECT_EQ(kInvalidHandleValue, *h0.mutable_value()); |
| EXPECT_FALSE(h0.is_valid()); |
| |
| Handle h1(static_cast<MojoHandle>(123)); |
| EXPECT_EQ(static_cast<MojoHandle>(123), h1.value()); |
| EXPECT_EQ(static_cast<MojoHandle>(123), *h1.mutable_value()); |
| EXPECT_TRUE(h1.is_valid()); |
| *h1.mutable_value() = static_cast<MojoHandle>(456); |
| EXPECT_EQ(static_cast<MojoHandle>(456), h1.value()); |
| EXPECT_TRUE(h1.is_valid()); |
| |
| h1.swap(h0); |
| EXPECT_EQ(static_cast<MojoHandle>(456), h0.value()); |
| EXPECT_TRUE(h0.is_valid()); |
| EXPECT_FALSE(h1.is_valid()); |
| |
| h1.set_value(static_cast<MojoHandle>(789)); |
| h0.swap(h1); |
| EXPECT_EQ(static_cast<MojoHandle>(789), h0.value()); |
| EXPECT_TRUE(h0.is_valid()); |
| EXPECT_EQ(static_cast<MojoHandle>(456), h1.value()); |
| EXPECT_TRUE(h1.is_valid()); |
| |
| // Make sure copy constructor works. |
| Handle h2(h0); |
| EXPECT_EQ(static_cast<MojoHandle>(789), h2.value()); |
| // And assignment. |
| h2 = h1; |
| EXPECT_EQ(static_cast<MojoHandle>(456), h2.value()); |
| |
| // Make sure that we can put |Handle|s into |std::map|s. |
| h0 = Handle(static_cast<MojoHandle>(987)); |
| h1 = Handle(static_cast<MojoHandle>(654)); |
| h2 = Handle(static_cast<MojoHandle>(321)); |
| Handle h3; |
| std::map<Handle, int> handle_to_int; |
| handle_to_int[h0] = 0; |
| handle_to_int[h1] = 1; |
| handle_to_int[h2] = 2; |
| handle_to_int[h3] = 3; |
| |
| EXPECT_EQ(4u, handle_to_int.size()); |
| EXPECT_FALSE(handle_to_int.find(h0) == handle_to_int.end()); |
| EXPECT_EQ(0, handle_to_int[h0]); |
| EXPECT_FALSE(handle_to_int.find(h1) == handle_to_int.end()); |
| EXPECT_EQ(1, handle_to_int[h1]); |
| EXPECT_FALSE(handle_to_int.find(h2) == handle_to_int.end()); |
| EXPECT_EQ(2, handle_to_int[h2]); |
| EXPECT_FALSE(handle_to_int.find(h3) == handle_to_int.end()); |
| EXPECT_EQ(3, handle_to_int[h3]); |
| EXPECT_TRUE(handle_to_int.find(Handle(static_cast<MojoHandle>(13579))) == |
| handle_to_int.end()); |
| |
| // TODO(vtl): With C++11, support |std::unordered_map|s, etc. (Or figure out |
| // how to support the variations of |hash_map|.) |
| } |
| |
| // |Handle|/|ScopedHandle| functions: |
| { |
| ScopedHandle h; |
| |
| EXPECT_EQ(kInvalidHandleValue, h.get().value()); |
| |
| // This should be a no-op. |
| Close(std::move(h)); |
| |
| // It should still be invalid. |
| EXPECT_EQ(kInvalidHandleValue, h.get().value()); |
| |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| Wait(h.get(), ~MOJO_HANDLE_SIGNAL_NONE)); |
| |
| std::vector<Handle> wh; |
| wh.push_back(h.get()); |
| std::vector<MojoHandleSignals> sigs; |
| sigs.push_back(~MOJO_HANDLE_SIGNAL_NONE); |
| size_t result_index; |
| MojoResult rv = WaitMany(wh.data(), sigs.data(), wh.size(), &result_index); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, rv); |
| } |
| |
| // |MakeScopedHandle| (just compilation tests): |
| { |
| EXPECT_FALSE(MakeScopedHandle(Handle()).is_valid()); |
| EXPECT_FALSE(MakeScopedHandle(MessagePipeHandle()).is_valid()); |
| EXPECT_FALSE(MakeScopedHandle(DataPipeProducerHandle()).is_valid()); |
| EXPECT_FALSE(MakeScopedHandle(DataPipeConsumerHandle()).is_valid()); |
| EXPECT_FALSE(MakeScopedHandle(SharedBufferHandle()).is_valid()); |
| } |
| |
| // |MessagePipeHandle|/|ScopedMessagePipeHandle| functions: |
| { |
| MessagePipeHandle h_invalid; |
| EXPECT_FALSE(h_invalid.is_valid()); |
| EXPECT_EQ( |
| MOJO_RESULT_INVALID_ARGUMENT, |
| WriteMessageRaw( |
| h_invalid, nullptr, 0, nullptr, 0, MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| char buffer[10] = {0}; |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| WriteMessageRaw(h_invalid, |
| buffer, |
| sizeof(buffer), |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| ReadMessageRaw(h_invalid, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| ReadMessageRaw(h_invalid, |
| buffer, |
| &buffer_size, |
| nullptr, |
| nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| |
| // Basic tests of waiting and closing. |
| MojoHandle hv0 = kInvalidHandleValue; |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| EXPECT_FALSE(h0.get().is_valid()); |
| EXPECT_FALSE(h1.get().is_valid()); |
| |
| CreateMessagePipe(nullptr, &h0, &h1); |
| EXPECT_TRUE(h0.get().is_valid()); |
| EXPECT_TRUE(h1.get().is_valid()); |
| EXPECT_NE(h0.get().value(), h1.get().value()); |
| // Save the handle values, so we can check that things got closed |
| // correctly. |
| hv0 = h0.get().value(); |
| MojoHandle hv1 = h1.get().value(); |
| MojoHandleSignalsState state = h0->QuerySignalsState(); |
| |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, state.satisfied_signals); |
| EXPECT_EQ(kSignalAll, state.satisfiable_signals); |
| |
| std::vector<Handle> wh; |
| wh.push_back(h0.get()); |
| wh.push_back(h1.get()); |
| std::vector<MojoHandleSignals> sigs; |
| sigs.push_back(MOJO_HANDLE_SIGNAL_READABLE); |
| sigs.push_back(MOJO_HANDLE_SIGNAL_WRITABLE); |
| std::vector<MojoHandleSignalsState> states(sigs.size()); |
| |
| size_t result_index; |
| MojoResult rv = WaitMany(wh.data(), sigs.data(), wh.size(), &result_index, |
| states.data()); |
| EXPECT_EQ(MOJO_RESULT_OK, rv); |
| EXPECT_EQ(1u, result_index); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, states[0].satisfied_signals); |
| EXPECT_EQ(kSignalAll, states[0].satisfiable_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, states[1].satisfied_signals); |
| EXPECT_EQ(kSignalAll, states[1].satisfiable_signals); |
| |
| // Test closing |h1| explicitly. |
| Close(std::move(h1)); |
| EXPECT_FALSE(h1.get().is_valid()); |
| |
| // Make sure |h1| is closed. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, |
| Wait(Handle(hv1), ~MOJO_HANDLE_SIGNAL_NONE)); |
| |
| EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, |
| Wait(h0.get(), MOJO_HANDLE_SIGNAL_READABLE, &state)); |
| |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, state.satisfied_signals); |
| EXPECT_EQ(MOJO_HANDLE_SIGNAL_PEER_CLOSED, state.satisfiable_signals); |
| } |
| // |hv0| should have been closed when |h0| went out of scope, so this close |
| // should fail. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(hv0)); |
| |
| // Actually test writing/reading messages. |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| CreateMessagePipe(nullptr, &h0, &h1); |
| |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h0.get(), |
| kHello, |
| kHelloSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| MojoHandleSignalsState state; |
| EXPECT_EQ(MOJO_RESULT_OK, |
| Wait(h1.get(), MOJO_HANDLE_SIGNAL_READABLE, &state)); |
| EXPECT_EQ(kSignalReadableWritable, state.satisfied_signals); |
| EXPECT_EQ(kSignalAll, state.satisfiable_signals); |
| |
| char buffer[10] = {0}; |
| uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(h1.get(), |
| buffer, |
| &buffer_size, |
| nullptr, |
| nullptr, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kHelloSize, buffer_size); |
| EXPECT_STREQ(kHello, buffer); |
| |
| // Send a handle over the previously-establish message pipe. Use the |
| // |MessagePipe| wrapper (to test it), which automatically creates a |
| // message pipe. |
| MessagePipe mp; |
| |
| // Write a message to |mp.handle0|, before we send |mp.handle1|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(mp.handle0.get(), |
| kWorld, |
| kWorldSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |mp.handle1| over |h1| to |h0|. |
| MojoHandle handles[5]; |
| handles[0] = mp.handle1.release().value(); |
| EXPECT_NE(kInvalidHandleValue, handles[0]); |
| EXPECT_FALSE(mp.handle1.get().is_valid()); |
| uint32_t handles_count = 1; |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), |
| kHello, |
| kHelloSize, |
| handles, |
| handles_count, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |handles[0]| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(handles[0])); |
| |
| // Read "hello" and the sent handle. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| Wait(h0.get(), MOJO_HANDLE_SIGNAL_READABLE, &state)); |
| EXPECT_EQ(kSignalReadableWritable, state.satisfied_signals); |
| EXPECT_EQ(kSignalAll, state.satisfiable_signals); |
| |
| memset(buffer, 0, sizeof(buffer)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| for (size_t i = 0; i < arraysize(handles); i++) |
| handles[i] = kInvalidHandleValue; |
| handles_count = static_cast<uint32_t>(arraysize(handles)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(h0.get(), |
| buffer, |
| &buffer_size, |
| handles, |
| &handles_count, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kHelloSize, buffer_size); |
| EXPECT_STREQ(kHello, buffer); |
| EXPECT_EQ(1u, handles_count); |
| EXPECT_NE(kInvalidHandleValue, handles[0]); |
| |
| // Read from the sent/received handle. |
| mp.handle1.reset(MessagePipeHandle(handles[0])); |
| // Save |handles[0]| to check that it gets properly closed. |
| hv0 = handles[0]; |
| |
| EXPECT_EQ(MOJO_RESULT_OK, |
| Wait(mp.handle1.get(), MOJO_HANDLE_SIGNAL_READABLE, &state)); |
| EXPECT_EQ(kSignalReadableWritable, state.satisfied_signals); |
| EXPECT_EQ(kSignalAll, state.satisfiable_signals); |
| |
| memset(buffer, 0, sizeof(buffer)); |
| buffer_size = static_cast<uint32_t>(sizeof(buffer)); |
| for (size_t i = 0; i < arraysize(handles); i++) |
| handles[i] = kInvalidHandleValue; |
| handles_count = static_cast<uint32_t>(arraysize(handles)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| ReadMessageRaw(mp.handle1.get(), |
| buffer, |
| &buffer_size, |
| handles, |
| &handles_count, |
| MOJO_READ_MESSAGE_FLAG_NONE)); |
| EXPECT_EQ(kWorldSize, buffer_size); |
| EXPECT_STREQ(kWorld, buffer); |
| EXPECT_EQ(0u, handles_count); |
| } |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(hv0)); |
| } |
| |
| // TODO(vtl): Test |CloseRaw()|. |
| // TODO(vtl): Test |reset()| more thoroughly? |
| } |
| |
| TEST(CoreCppTest, TearDownWithMessagesEnqueued) { |
| // Tear down a message pipe which still has a message enqueued, with the |
| // message also having a valid message pipe handle. |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| CreateMessagePipe(nullptr, &h0, &h1); |
| |
| // Send a handle over the previously-establish message pipe. |
| ScopedMessagePipeHandle h2; |
| ScopedMessagePipeHandle h3; |
| if (CreateMessagePipe(nullptr, &h2, &h3) != MOJO_RESULT_OK) |
| CreateMessagePipe(nullptr, &h2, &h3); // Must be old EDK. |
| |
| // Write a message to |h2|, before we send |h3|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h2.get(), |
| kWorld, |
| kWorldSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // And also a message to |h3|. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h3.get(), |
| kWorld, |
| kWorldSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |h3| over |h1| to |h0|. |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| MojoHandle h3_value; |
| h3_value = h3.release().value(); |
| EXPECT_NE(kInvalidHandleValue, h3_value); |
| EXPECT_FALSE(h3.get().is_valid()); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), |
| kHello, |
| kHelloSize, |
| &h3_value, |
| 1, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |h3_value| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(h3_value)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h2.release().value())); |
| } |
| |
| // Do this in a different order: make the enqueued message pipe handle only |
| // half-alive. |
| { |
| ScopedMessagePipeHandle h0; |
| ScopedMessagePipeHandle h1; |
| CreateMessagePipe(nullptr, &h0, &h1); |
| |
| // Send a handle over the previously-establish message pipe. |
| ScopedMessagePipeHandle h2; |
| ScopedMessagePipeHandle h3; |
| if (CreateMessagePipe(nullptr, &h2, &h3) != MOJO_RESULT_OK) |
| CreateMessagePipe(nullptr, &h2, &h3); // Must be old EDK. |
| |
| // Write a message to |h2|, before we send |h3|. |
| const char kWorld[] = "world!"; |
| const uint32_t kWorldSize = static_cast<uint32_t>(sizeof(kWorld)); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h2.get(), |
| kWorld, |
| kWorldSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // And also a message to |h3|. |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h3.get(), |
| kWorld, |
| kWorldSize, |
| nullptr, |
| 0, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| |
| // Send |h3| over |h1| to |h0|. |
| const char kHello[] = "hello"; |
| const uint32_t kHelloSize = static_cast<uint32_t>(sizeof(kHello)); |
| MojoHandle h3_value; |
| h3_value = h3.release().value(); |
| EXPECT_NE(kInvalidHandleValue, h3_value); |
| EXPECT_FALSE(h3.get().is_valid()); |
| EXPECT_EQ(MOJO_RESULT_OK, |
| WriteMessageRaw(h1.get(), |
| kHello, |
| kHelloSize, |
| &h3_value, |
| 1, |
| MOJO_WRITE_MESSAGE_FLAG_NONE)); |
| // |h3_value| should actually be invalid now. |
| EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(h3_value)); |
| |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h2.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0.release().value())); |
| EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1.release().value())); |
| } |
| } |
| |
| TEST(CoreCppTest, ScopedHandleMoveCtor) { |
| ScopedSharedBufferHandle buffer1 = SharedBufferHandle::Create(1024); |
| EXPECT_TRUE(buffer1.is_valid()); |
| |
| ScopedSharedBufferHandle buffer2 = SharedBufferHandle::Create(1024); |
| EXPECT_TRUE(buffer2.is_valid()); |
| |
| // If this fails to close buffer1, ScopedHandleBase::CloseIfNecessary() will |
| // assert. |
| buffer1 = std::move(buffer2); |
| |
| EXPECT_TRUE(buffer1.is_valid()); |
| EXPECT_FALSE(buffer2.is_valid()); |
| } |
| |
| TEST(CoreCppTest, BasicSharedBuffer) { |
| ScopedSharedBufferHandle h0 = SharedBufferHandle::Create(100); |
| ASSERT_TRUE(h0.is_valid()); |
| |
| // Map everything. |
| ScopedSharedBufferMapping mapping = h0->Map(100); |
| ASSERT_TRUE(mapping); |
| static_cast<char*>(mapping.get())[50] = 'x'; |
| |
| // Duplicate |h0| to |h1|. |
| ScopedSharedBufferHandle h1 = |
| h0->Clone(SharedBufferHandle::AccessMode::READ_ONLY); |
| ASSERT_TRUE(h1.is_valid()); |
| |
| // Close |h0|. |
| h0.reset(); |
| |
| // The mapping should still be good. |
| static_cast<char*>(mapping.get())[51] = 'y'; |
| |
| // Unmap it. |
| mapping.reset(); |
| |
| // Map half of |h1|. |
| mapping = h1->MapAtOffset(50, 50); |
| ASSERT_TRUE(mapping); |
| |
| // It should have what we wrote. |
| EXPECT_EQ('x', static_cast<char*>(mapping.get())[0]); |
| EXPECT_EQ('y', static_cast<char*>(mapping.get())[1]); |
| |
| // Unmap it. |
| mapping.reset(); |
| h1.reset(); |
| |
| // Creating a 1 EB shared buffer should fail without crashing. |
| EXPECT_FALSE(SharedBufferHandle::Create(1ULL << 60).is_valid()); |
| } |
| |
| // TODO(vtl): Write data pipe tests. |
| |
| } // namespace |
| } // namespace mojo |
