Add CDM FileIO tests.

media/cdm/ppapi/cdm_file_io_test.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.

[ddorwin, 2013/12/04 05:27:08]

Ideally, we'd have more tests that close the file, re-open it, have multiple
files open at the same time, etc. We can start with this, though.

[xhwang, 2013/12/10 01:24:25]

Yes, that's in the plan. Added TODO.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/cdm/ppapi/cdm_file_io_test.h"
+
+#include "base/callback_helpers.h"
+#include "media/base/bind_to_loop.h"
+
+namespace media {
+
+#define RETURN_ON_FAILURE(status, log) \
+  do {                                 \
+    if ((status) != kSuccess) {        \
+      LOG(ERROR) << log;               \

[ddorwin, 2013/12/04 05:27:08]

Since this comes from a CDM, we should probably add more details. Something
like:
"CDM File IO Test failure: " << log

[xhwang, 2013/12/10 01:24:25]

Done.

+      OnTestComplete(false);           \
+      return;                          \
+    }                                  \
+  } while (0)
+
+const char kTestFileName[] = "cdm_file_io_test_file";
+const uint8_t kTestData[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,

[ddorwin, 2013/12/04 05:27:08]

We need really big test data to test the multiple reads code. (I'm not sure we
can test the multiple writes code.)

[xhwang, 2013/12/10 01:24:25]

Added TODO.

+                              0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };
+
+CdmFileIOTest::CdmFileIOTest()
+    : cdm_file_io_(NULL),
+      test_data_(kTestData, kTestData + arraysize(kTestData)) {}
+
+CdmFileIOTest::~CdmFileIOTest() {}
+
+void CdmFileIOTest::OnOpenComplete(Status status) {
+  LOG(ERROR) << __FUNCTION__;

[ddorwin, 2013/12/04 05:27:08]

debugging leftovers?

[xhwang, 2013/12/10 01:24:25]

Removed.

+  RETURN_ON_FAILURE(status, "Open failed.");
+
+  cdm_file_io_->Write(&test_data_[0], test_data_.size());
+}
+
+void CdmFileIOTest::OnReadComplete(Status status,
+                                   const uint8_t* data, uint32_t data_size) {
+  LOG(ERROR) << __FUNCTION__;
+  RETURN_ON_FAILURE(status, "Read failed.");
+
+  std::vector<uint8_t> data_read(data, data + data_size);
+  bool success = (test_data_ == data_read);
+  OnTestComplete(success);

[ddorwin, 2013/12/04 05:27:08]

Here we don't get details about what failed. Should we use the macro then always
call this with true?

[xhwang, 2013/12/10 01:24:25]

Done.

+}
+
+void CdmFileIOTest::OnWriteComplete(Status status) {
+  LOG(ERROR) << __FUNCTION__;
+  RETURN_ON_FAILURE(status, "Write failed.");
+
+  cdm_file_io_->Read();
+}
+
+void CdmFileIOTest::Run(cdm::CdmFileIO* cdm_file_io,
+                        CompletionCB completion_cb) {
+  LOG(ERROR) << __FUNCTION__;
+
+  cdm_file_io_ = cdm_file_io;
+  completion_cb_ = BindToCurrentLoop(completion_cb);
+
+  cdm_file_io_->Open(kTestFileName, arraysize(kTestFileName));
+}
+
+void CdmFileIOTest::OnTestComplete(bool success) {
+  base::ResetAndReturn(&completion_cb_).Run(success);
+  cdm_file_io_->Close();
+  cdm_file_io_ = NULL;
+}
+
+}  // namespace media