Unit test for OmxInputBuffer

TEST=media_unittest --gtest_filter=OmxInputBuffer.*
BUG=32753

Review URL: http://codereview.chromium.org/580012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38502 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 67 insertions, 0 deletions

diff --git a/media/omx/omx_input_buffer_unittest.cc b/media/omx/omx_input_buffer_unittest.cc
new file mode 100644
index 0000000..50a2302
--- /dev/null
+++ b/media/omx/omx_input_buffer_unittest.cc
@@ -0,0 +1,67 @@
+// Copyright (c) 2010 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 "media/omx/omx_input_buffer.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+const int kSize = 256;
+
+void GenerateData(uint8** data, int size) {
+  *data = new uint8[size];
+  for (int i = 0; i < size; ++i) {
+    (*data)[i] = static_cast<uint8>(i);
+  }
+}
+
+bool VerifyData(uint8* data, int size, int offset) {
+  bool data_mismatch = false;
+  for (int i = 0; i < size; ++i) {
+    if (data[i] != static_cast<uint8>(offset + i)) {
+      data_mismatch = true;
+      break;
+    }
+  }
+  return !data_mismatch;
+}
+
+}  // namespace
+
+namespace media {
+
+TEST(OmxInputBufferTest, Read) {
+  scoped_array<uint8> read_buffer(new uint8[kSize]);
+  uint8* data;
+  GenerateData(&data, kSize);
+  scoped_refptr<OmxInputBuffer> buffer(new OmxInputBuffer(data, kSize));
+  EXPECT_FALSE(buffer->Used());
+
+  // Perform the first read.
+  EXPECT_EQ(10, buffer->Read(read_buffer.get(), 10));
+  EXPECT_FALSE(buffer->Used());
+  EXPECT_TRUE(VerifyData(read_buffer.get(), 10, 0));
+
+  // Perform the second read.
+  EXPECT_EQ(10, buffer->Read(read_buffer.get(), 10));
+  EXPECT_FALSE(buffer->Used());
+  EXPECT_TRUE(VerifyData(read_buffer.get(), 10, 10));
+
+  // Perform the last read.
+  EXPECT_EQ(kSize - 20, buffer->Read(read_buffer.get(), kSize));
+  EXPECT_TRUE(buffer->Used());
+  EXPECT_TRUE(VerifyData(read_buffer.get(), kSize - 20, 20));
+
+  // This read will return nothing.
+  EXPECT_EQ(0, buffer->Read(read_buffer.get(), kSize));
+  EXPECT_TRUE(buffer->Used());
+}
+
+TEST(OmxInputBufferTest, EmptyBuffer) {
+  scoped_refptr<OmxInputBuffer> buffer(new OmxInputBuffer(NULL, 0));
+  EXPECT_TRUE(buffer->IsEndOfStream());
+  EXPECT_TRUE(buffer->Used());
+}
+
+}  // namespace media