3 files changed, 97 insertions, 0 deletions
diff --git a/ppapi/ppapi_tests.gypi b/ppapi/ppapi_tests.gypi
index ec8d2d5..2aee79c 100644
--- a/ppapi/ppapi_tests.gypi
+++ b/ppapi/ppapi_tests.gypi
@@ -76,6 +76,8 @@
         'tests/arch_dependent_sizes_32.h',
         'tests/arch_dependent_sizes_64.h',
         'tests/pp_thread.h',
+        'tests/test_audio_config.cc',
+        'tests/test_audio_config.h',
         'tests/test_broker.cc',
         'tests/test_broker.h',
         'tests/test_buffer.cc',
diff --git a/ppapi/tests/test_audio_config.cc b/ppapi/tests/test_audio_config.cc
new file mode 100644
index 0000000..bb3e630
--- /dev/null
+++ b/ppapi/tests/test_audio_config.cc
@@ -0,0 +1,65 @@
+// Copyright (c) 2011 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 "ppapi/tests/test_audio_config.h"
+
+#include "base/basictypes.h"  // For |arraysize()|.
+#include "ppapi/c/ppb_audio_config.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/tests/testing_instance.h"
+
+REGISTER_TEST_CASE(AudioConfig);
+
+bool TestAudioConfig::Init() {
+  audio_config_interface_ = static_cast<PPB_AudioConfig const*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_AUDIO_CONFIG_INTERFACE));
+  core_interface_ = static_cast<const PPB_Core*>(
+      pp::Module::Get()->GetBrowserInterface(PPB_CORE_INTERFACE));
+  return audio_config_interface_ && core_interface_;
+}
+
+void TestAudioConfig::RunTests(const std::string& filter) {
+  RUN_TEST(Everything, filter);
+}
+
+std::string TestAudioConfig::TestEverything() {
+  static const PP_AudioSampleRate kSampleRates[] = {
+    PP_AUDIOSAMPLERATE_44100,
+    PP_AUDIOSAMPLERATE_48000
+  };
+  static const uint32_t kRequestFrameCounts[] = {
+    PP_AUDIOMINSAMPLEFRAMECOUNT,
+    PP_AUDIOMAXSAMPLEFRAMECOUNT,
+    // Include some "okay-looking" frame counts; check their validity below.
+    1024,
+    2048,
+    4096
+  };
+
+  for (size_t i = 0; i < arraysize(kSampleRates); i++) {
+    PP_AudioSampleRate sample_rate = kSampleRates[i];
+
+    for (size_t j = 0; j < arraysize(kRequestFrameCounts); j++) {
+      uint32_t request_frame_count = kRequestFrameCounts[j];
+      ASSERT_TRUE(request_frame_count >= PP_AUDIOMINSAMPLEFRAMECOUNT);
+      ASSERT_TRUE(request_frame_count <= PP_AUDIOMAXSAMPLEFRAMECOUNT);
+
+      uint32_t frame_count = audio_config_interface_->RecommendSampleFrameCount(
+          sample_rate, request_frame_count);
+      ASSERT_TRUE(frame_count >= PP_AUDIOMINSAMPLEFRAMECOUNT);
+      ASSERT_TRUE(frame_count <= PP_AUDIOMAXSAMPLEFRAMECOUNT);
+
+      PP_Resource ac = audio_config_interface_->CreateStereo16Bit(
+          instance_->pp_instance(), sample_rate, frame_count);
+      ASSERT_TRUE(ac);
+      ASSERT_TRUE(audio_config_interface_->IsAudioConfig(ac));
+      ASSERT_EQ(sample_rate, audio_config_interface_->GetSampleRate(ac));
+      ASSERT_EQ(frame_count, audio_config_interface_->GetSampleFrameCount(ac));
+
+      core_interface_->ReleaseResource(ac);
+    }
+  }
+
+  PASS();
+}
diff --git a/ppapi/tests/test_audio_config.h b/ppapi/tests/test_audio_config.h
new file mode 100644
index 0000000..a182fb7
--- /dev/null
+++ b/ppapi/tests/test_audio_config.h
@@ -0,0 +1,30 @@
+// Copyright (c) 2011 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.
+
+#ifndef PAPPI_TESTS_TEST_AUDIO_CONFIG_H_
+#define PAPPI_TESTS_TEST_AUDIO_CONFIG_H_
+
+#include <string>
+
+#include "ppapi/tests/test_case.h"
+
+struct PPB_AudioConfig;
+struct PPB_Core;
+
+class TestAudioConfig : public TestCase {
+ public:
+  explicit TestAudioConfig(TestingInstance* instance) : TestCase(instance) {}
+
+  // TestCase implementation.
+  virtual bool Init();
+  virtual void RunTests(const std::string& filter);
+
+ private:
+  std::string TestEverything();
+
+  const PPB_AudioConfig* audio_config_interface_;
+  const PPB_Core* core_interface_;
+};
+
+#endif  // PAPPI_TESTS_TEST_AUDIO_CONFIG_H_