diff options
Diffstat (limited to 'mojo/public/cpp/bindings/tests/buffer_unittest.cc')
-rw-r--r-- | mojo/public/cpp/bindings/tests/buffer_unittest.cc | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/mojo/public/cpp/bindings/tests/buffer_unittest.cc b/mojo/public/cpp/bindings/tests/buffer_unittest.cc deleted file mode 100644 index 61424c05..0000000 --- a/mojo/public/cpp/bindings/tests/buffer_unittest.cc +++ /dev/null @@ -1,91 +0,0 @@ -// 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. - -#include <limits> - -#include "mojo/public/cpp/bindings/lib/bindings_serialization.h" -#include "mojo/public/cpp/bindings/lib/fixed_buffer.h" -#include "testing/gtest/include/gtest/gtest.h" - -namespace mojo { -namespace test { -namespace { - -bool IsZero(void* p_buf, size_t size) { - char* buf = reinterpret_cast<char*>(p_buf); - for (size_t i = 0; i < size; ++i) { - if (buf[i] != 0) - return false; - } - return true; -} - -// Tests that FixedBuffer allocates memory aligned to 8 byte boundaries. -TEST(FixedBufferTest, Alignment) { - internal::FixedBuffer buf(internal::Align(10) * 2); - ASSERT_EQ(buf.size(), 16u * 2); - - void* a = buf.Allocate(10); - ASSERT_TRUE(a); - EXPECT_TRUE(IsZero(a, 10)); - EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(a) % 8); - - void* b = buf.Allocate(10); - ASSERT_TRUE(b); - EXPECT_TRUE(IsZero(b, 10)); - EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(b) % 8); - - // Any more allocations would result in an assert, but we can't test that. -} - -// Tests that FixedBuffer::Leak passes ownership to the caller. -TEST(FixedBufferTest, Leak) { - void* ptr = nullptr; - void* buf_ptr = nullptr; - { - internal::FixedBuffer buf(8); - ASSERT_EQ(8u, buf.size()); - - ptr = buf.Allocate(8); - ASSERT_TRUE(ptr); - buf_ptr = buf.Leak(); - - // The buffer should point to the first element allocated. - // TODO(mpcomplete): Is this a reasonable expectation? - EXPECT_EQ(ptr, buf_ptr); - - // The FixedBuffer should be empty now. - EXPECT_EQ(0u, buf.size()); - EXPECT_FALSE(buf.Leak()); - } - - // Since we called Leak, ptr is still writable after FixedBuffer went out of - // scope. - memset(ptr, 1, 8); - free(buf_ptr); -} - -#ifdef NDEBUG -TEST(FixedBufferTest, TooBig) { - internal::FixedBuffer buf(24); - - // A little bit too large. - EXPECT_EQ(reinterpret_cast<void*>(0), buf.Allocate(32)); - - // Move the cursor forward. - EXPECT_NE(reinterpret_cast<void*>(0), buf.Allocate(16)); - - // A lot too large. - EXPECT_EQ(reinterpret_cast<void*>(0), - buf.Allocate(std::numeric_limits<size_t>::max() - 1024u)); - - // A lot too large, leading to possible integer overflow. - EXPECT_EQ(reinterpret_cast<void*>(0), - buf.Allocate(std::numeric_limits<size_t>::max() - 8u)); -} -#endif - -} // namespace -} // namespace test -} // namespace mojo |