gpu/command_buffer/common/gles2_cmd_format_test.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This file contains unit tests for gles2 commmands
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8 #include "gpu/command_buffer/common/gles2_cmd_format.h"
   9
  10 namespace gpu {
  11 namespace gles2 {
  12
  13 class GLES2FormatTest : public testing::Test {
  14  protected:
  15   static const unsigned char kInitialValue = 0xBD;
  16
  17   virtual void SetUp() {
  18     memset(buffer_, kInitialValue, sizeof(buffer_));
  19   }
  20
  21   virtual void TearDown() {
  22   }
  23
  24   template <typename T>
  25   T* GetBufferAs() {
  26     return static_cast<T*>(static_cast<void*>(&buffer_));
  27   }
  28
  29   void CheckBytesWritten(
  30       const void* end, size_t expected_size, size_t written_size) {
  31     size_t actual_size = static_cast<const unsigned char*>(end) -
  32         GetBufferAs<const unsigned char>();
  33     EXPECT_LT(actual_size, sizeof(buffer_));
  34     EXPECT_GT(actual_size, 0u);
  35     EXPECT_EQ(expected_size, actual_size);
  36     EXPECT_EQ(kInitialValue, buffer_[written_size]);
  37     EXPECT_NE(kInitialValue, buffer_[written_size - 1]);
  38   }
  39
  40   void CheckBytesWrittenMatchesExpectedSize(
  41       const void* end, size_t expected_size) {
  42     CheckBytesWritten(end, expected_size, expected_size);
  43   }
  44
  45  private:
  46   unsigned char buffer_[1024];
  47 };
  48
  49 // GCC requires these declarations, but MSVC requires they not be present
  50 #ifndef _MSC_VER
  51 const unsigned char GLES2FormatTest::kInitialValue;
  52 #endif
  53
  54 #include "gpu/command_buffer/common/gles2_cmd_format_test_autogen.h"
  55
  56 }  // namespace gles2
  57 }  // namespace gpu
  58