Index: mojo/edk/embedder/simple_platform_shared_buffer_unittest.cc |
diff --git a/mojo/edk/embedder/simple_platform_shared_buffer_unittest.cc b/mojo/edk/embedder/simple_platform_shared_buffer_unittest.cc |
deleted file mode 100644 |
index 4644b7b63f1e744e055a7ce0c4ffae15c0c646f4..0000000000000000000000000000000000000000 |
--- a/mojo/edk/embedder/simple_platform_shared_buffer_unittest.cc |
+++ /dev/null |
@@ -1,187 +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 "mojo/edk/embedder/simple_platform_shared_buffer.h" |
- |
-#include <limits> |
- |
-#include "base/macros.h" |
-#include "base/memory/ref_counted.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "testing/gtest/include/gtest/gtest.h" |
- |
-namespace mojo { |
-namespace embedder { |
-namespace { |
- |
-TEST(SimplePlatformSharedBufferTest, Basic) { |
- const size_t kNumInts = 100; |
- const size_t kNumBytes = kNumInts * sizeof(int); |
- // A fudge so that we're not just writing zero bytes 75% of the time. |
- const int kFudge = 1234567890; |
- |
- // Make some memory. |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(kNumBytes)); |
- ASSERT_TRUE(buffer); |
- |
- // Map it all, scribble some stuff, and then unmap it. |
- { |
- EXPECT_TRUE(buffer->IsValidMap(0, kNumBytes)); |
- scoped_ptr<PlatformSharedBufferMapping> mapping(buffer->Map(0, kNumBytes)); |
- ASSERT_TRUE(mapping); |
- ASSERT_TRUE(mapping->GetBase()); |
- int* stuff = static_cast<int*>(mapping->GetBase()); |
- for (size_t i = 0; i < kNumInts; i++) |
- stuff[i] = static_cast<int>(i) + kFudge; |
- } |
- |
- // Map it all again, check that our scribbling is still there, then do a |
- // partial mapping and scribble on that, check that everything is coherent, |
- // unmap the first mapping, scribble on some of the second mapping, and then |
- // unmap it. |
- { |
- ASSERT_TRUE(buffer->IsValidMap(0, kNumBytes)); |
- // Use |MapNoCheck()| this time. |
- scoped_ptr<PlatformSharedBufferMapping> mapping1( |
- buffer->MapNoCheck(0, kNumBytes)); |
- ASSERT_TRUE(mapping1); |
- ASSERT_TRUE(mapping1->GetBase()); |
- int* stuff1 = static_cast<int*>(mapping1->GetBase()); |
- for (size_t i = 0; i < kNumInts; i++) |
- EXPECT_EQ(static_cast<int>(i) + kFudge, stuff1[i]) << i; |
- |
- scoped_ptr<PlatformSharedBufferMapping> mapping2( |
- buffer->Map((kNumInts / 2) * sizeof(int), 2 * sizeof(int))); |
- ASSERT_TRUE(mapping2); |
- ASSERT_TRUE(mapping2->GetBase()); |
- int* stuff2 = static_cast<int*>(mapping2->GetBase()); |
- EXPECT_EQ(static_cast<int>(kNumInts / 2) + kFudge, stuff2[0]); |
- EXPECT_EQ(static_cast<int>(kNumInts / 2) + 1 + kFudge, stuff2[1]); |
- |
- stuff2[0] = 123; |
- stuff2[1] = 456; |
- EXPECT_EQ(123, stuff1[kNumInts / 2]); |
- EXPECT_EQ(456, stuff1[kNumInts / 2 + 1]); |
- |
- mapping1.reset(); |
- |
- EXPECT_EQ(123, stuff2[0]); |
- EXPECT_EQ(456, stuff2[1]); |
- stuff2[1] = 789; |
- } |
- |
- // Do another partial mapping and check that everything is the way we expect |
- // it to be. |
- { |
- EXPECT_TRUE(buffer->IsValidMap(sizeof(int), kNumBytes - sizeof(int))); |
- scoped_ptr<PlatformSharedBufferMapping> mapping( |
- buffer->Map(sizeof(int), kNumBytes - sizeof(int))); |
- ASSERT_TRUE(mapping); |
- ASSERT_TRUE(mapping->GetBase()); |
- int* stuff = static_cast<int*>(mapping->GetBase()); |
- |
- for (size_t j = 0; j < kNumInts - 1; j++) { |
- int i = static_cast<int>(j) + 1; |
- if (i == kNumInts / 2) { |
- EXPECT_EQ(123, stuff[j]); |
- } else if (i == kNumInts / 2 + 1) { |
- EXPECT_EQ(789, stuff[j]); |
- } else { |
- EXPECT_EQ(i + kFudge, stuff[j]) << i; |
- } |
- } |
- } |
-} |
- |
-// TODO(vtl): Bigger buffers. |
- |
-TEST(SimplePlatformSharedBufferTest, InvalidMappings) { |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(100)); |
- ASSERT_TRUE(buffer); |
- |
- // Zero length not allowed. |
- EXPECT_FALSE(buffer->Map(0, 0)); |
- EXPECT_FALSE(buffer->IsValidMap(0, 0)); |
- |
- // Okay: |
- EXPECT_TRUE(buffer->Map(0, 100)); |
- EXPECT_TRUE(buffer->IsValidMap(0, 100)); |
- // Offset + length too big. |
- EXPECT_FALSE(buffer->Map(0, 101)); |
- EXPECT_FALSE(buffer->IsValidMap(0, 101)); |
- EXPECT_FALSE(buffer->Map(1, 100)); |
- EXPECT_FALSE(buffer->IsValidMap(1, 100)); |
- |
- // Okay: |
- EXPECT_TRUE(buffer->Map(50, 50)); |
- EXPECT_TRUE(buffer->IsValidMap(50, 50)); |
- // Offset + length too big. |
- EXPECT_FALSE(buffer->Map(50, 51)); |
- EXPECT_FALSE(buffer->IsValidMap(50, 51)); |
- EXPECT_FALSE(buffer->Map(51, 50)); |
- EXPECT_FALSE(buffer->IsValidMap(51, 50)); |
-} |
- |
-TEST(SimplePlatformSharedBufferTest, TooBig) { |
- // If |size_t| is 32-bit, it's quite possible/likely that |Create()| succeeds |
- // (since it only involves creating a 4 GB file). |
- const size_t kMaxSizeT = std::numeric_limits<size_t>::max(); |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(kMaxSizeT)); |
- // But, assuming |sizeof(size_t) == sizeof(void*)|, mapping all of it should |
- // always fail. |
- if (buffer) |
- EXPECT_FALSE(buffer->Map(0, kMaxSizeT)); |
-} |
- |
-// Tests that separate mappings get distinct addresses. |
-// Note: It's not inconceivable that the OS could ref-count identical mappings |
-// and reuse the same address, in which case we'd have to be more careful about |
-// using the address as the key for unmapping. |
-TEST(SimplePlatformSharedBufferTest, MappingsDistinct) { |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(100)); |
- scoped_ptr<PlatformSharedBufferMapping> mapping1(buffer->Map(0, 100)); |
- scoped_ptr<PlatformSharedBufferMapping> mapping2(buffer->Map(0, 100)); |
- EXPECT_NE(mapping1->GetBase(), mapping2->GetBase()); |
-} |
- |
-TEST(SimplePlatformSharedBufferTest, BufferZeroInitialized) { |
- static const size_t kSizes[] = {10, 100, 1000, 10000, 100000}; |
- for (size_t i = 0; i < arraysize(kSizes); i++) { |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(kSizes[i])); |
- scoped_ptr<PlatformSharedBufferMapping> mapping(buffer->Map(0, kSizes[i])); |
- for (size_t j = 0; j < kSizes[i]; j++) { |
- // "Assert" instead of "expect" so we don't spam the output with thousands |
- // of failures if we fail. |
- ASSERT_EQ('\0', static_cast<char*>(mapping->GetBase())[j]) |
- << "size " << kSizes[i] << ", offset " << j; |
- } |
- } |
-} |
- |
-TEST(SimplePlatformSharedBufferTest, MappingsOutliveBuffer) { |
- scoped_ptr<PlatformSharedBufferMapping> mapping1; |
- scoped_ptr<PlatformSharedBufferMapping> mapping2; |
- |
- { |
- scoped_refptr<SimplePlatformSharedBuffer> buffer( |
- SimplePlatformSharedBuffer::Create(100)); |
- mapping1 = buffer->Map(0, 100).Pass(); |
- mapping2 = buffer->Map(50, 50).Pass(); |
- static_cast<char*>(mapping1->GetBase())[50] = 'x'; |
- } |
- |
- EXPECT_EQ('x', static_cast<char*>(mapping2->GetBase())[0]); |
- |
- static_cast<char*>(mapping2->GetBase())[1] = 'y'; |
- EXPECT_EQ('y', static_cast<char*>(mapping1->GetBase())[51]); |
-} |
- |
-} // namespace |
-} // namespace embedder |
-} // namespace mojo |