Do not run MSE related tests when MSE is not available.

content/browser/media/encrypted_media_browsertest.cc

 // Copyright (c) 2013 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 "base/command_line.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/windows_version.h"
 #include "content/browser/media/media_browsertest.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/shell/browser/shell.h"
+#if defined(OS_ANDROID)
+#include "base/android/build_info.h"
+#endif
 
 // Available key systems.
-static const char kClearKeyKeySystem[] = "webkit-org.w3.clearkey";
+const char kClearKeyKeySystem[] = "webkit-org.w3.clearkey";
 
 // Supported media types.
-static const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
-static const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
-static const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
+const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
+const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
+const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
 
 // EME-specific test results and errors.
-static const char kEmeKeyError[] = "KEYERROR";
-static const char kEmeNotSupportedError[] = "NOTSUPPORTEDERROR";
+const char kEmeKeyError[] = "KEYERROR";
+const char kEmeNotSupportedError[] = "NOTSUPPORTEDERROR";
 
 // The type of video src used to load media.
 enum SrcType {
   SRC,
   MSE
 };
 
 namespace content {
 
+// MSE is available on all desktop platforms and on Android 4.1 and later.
+static bool IsMSESupported() {
+#if defined(OS_ANDROID)
+  if (base::android::BuildInfo::GetInstance()->sdk_int() < 16) {
+    LOG(INFO) << "MSE is only supported in Android 4.1 and later.";
+    return false;
+  }
+#endif  // defined(OS_ANDROID)
+  return true;
+}
+
 // Tests encrypted media playback with a combination of parameters:
 // - char*: Key system name.
 // - bool: True to load media using MSE, otherwise use src.
 class EncryptedMediaTest : public content::MediaBrowserTest,
     public testing::WithParamInterface<std::tr1::tuple<const char*, SrcType> > {
  public:
   // Can only be used in parameterized (*_P) tests.
   const char* CurrentKeySystem() {
     return std::tr1::get<0>(GetParam());
   }
 
   // Can only be used in parameterized (*_P) tests.
   SrcType CurrentSourceType() {
     return std::tr1::get<1>(GetParam());
   }
 
   void TestSimplePlayback(const char* encrypted_media, const char* media_type) {
     RunSimpleEncryptedMediaTest(
         encrypted_media, media_type, CurrentKeySystem(), CurrentSourceType());
   }
 
   void TestFrameSizeChange() {
     RunEncryptedMediaTest("encrypted_frame_size_change.html",
                           "frame_size_change-av-enc-v.webm", kWebMAudioVideo,
                           CurrentKeySystem(), CurrentSourceType(), kEnded);
   }
 
   void TestConfigChange() {
+    if (CurrentSourceType() != MSE || !IsMSESupported()) {
+      LOG(INFO) << "Skipping test - config change test requires MSE.";
+      return;
+    }
+
     std::vector<StringPair> query_params;
     query_params.push_back(std::make_pair("keysystem", CurrentKeySystem()));
     query_params.push_back(std::make_pair("runencrypted", "1"));
     RunMediaTestPage("mse_config_change.html", &query_params, kEnded, true);
   }
 
   void RunEncryptedMediaTest(const char* html_page,
                              const char* media_file,
                              const char* media_type,
                              const char* key_system,
                              SrcType src_type,
                              const char* expectation) {
+    if (src_type == MSE && !IsMSESupported()) {
+      LOG(INFO) << "Skipping test - MSE not supported.";
+      return;
+    }
+
     std::vector<StringPair> query_params;
     query_params.push_back(std::make_pair("mediafile", media_file));
     query_params.push_back(std::make_pair("mediatype", media_type));
     query_params.push_back(std::make_pair("keysystem", key_system));
     if (src_type == MSE)
       query_params.push_back(std::make_pair("usemse", "1"));
     RunMediaTestPage(html_page, &query_params, expectation, true);
   }
 
   void RunSimpleEncryptedMediaTest(const char* media_file,
@@ skipping 20 matching lines @@
 #endif
 };
 
 using ::testing::Combine;
 using ::testing::Values;
 
 #if !defined(OS_ANDROID)
 // Encrypted media playback with SRC is not supported on Android.
 INSTANTIATE_TEST_CASE_P(SRC_ClearKey, EncryptedMediaTest,
                         Combine(Values(kClearKeyKeySystem), Values(SRC)));
-#endif  // defined(OS_ANDROID)
+#endif  // !defined(OS_ANDROID)
 
 INSTANTIATE_TEST_CASE_P(MSE_ClearKey, EncryptedMediaTest,
                         Combine(Values(kClearKeyKeySystem), Values(MSE)));
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_AudioOnly_WebM) {
   TestSimplePlayback("bear-a-enc_a.webm", kWebMAudioOnly);
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_AudioClearVideo_WebM) {
   TestSimplePlayback("bear-320x240-av-enc_a.webm", kWebMAudioVideo);
@@ skipping 24 matching lines @@
   TestFrameSizeChange();
 }
 
 IN_PROC_BROWSER_TEST_F(EncryptedMediaTest, UnknownKeySystemThrowsException) {
   RunEncryptedMediaTest("encrypted_media_player.html", "bear-a-enc_a.webm",
                         kWebMAudioOnly, "com.example.foo", MSE,
                         kEmeNotSupportedError);
 }
 
 }  // namespace content