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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/renderer/media/media_factory.h"
#include "content/shell/browser/shell.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "testing/gmock/include/gmock/gmock.h"
namespace media {
class TooManyWebMediaPlayersIntervention : public content::ContentBrowserTest {
public:
using Super = content::ContentBrowserTest;
TooManyWebMediaPlayersIntervention() = default;
~TooManyWebMediaPlayersIntervention() override = default;
void SetUpCommandLine(base::CommandLine* command_line) override {
Super::SetUpCommandLine(command_line);
command_line->AppendSwitchASCII(switches::kMaxWebMediaPlayerCount, "1");
}
void SetUpOnMainThread() override {
Super::SetUpOnMainThread();
base::FilePath test_data_dir;
ASSERT_TRUE(base::PathService::Get(content::DIR_TEST_DATA, &test_data_dir));
test_data_dir = test_data_dir.Append(FILE_PATH_LITERAL("media"));
ASSERT_TRUE(base::PathExists(test_data_dir));
embedded_test_server()->ServeFilesFromDirectory(test_data_dir);
host_resolver()->AddRule("*", "127.0.0.1");
content::SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
}
};
IN_PROC_BROWSER_TEST_F(TooManyWebMediaPlayersIntervention,
WebMediaPlayerCreationFails) {
const GURL url(embedded_test_server()->GetURL(
"a.com", "/too_many_web_media_players_intervention_test.html"));
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(content::NavigateToURL(web_contents, url));
// In the test environment media players are capped at one. See
// SetUpCommandLine above.
EXPECT_TRUE(content::ExecJs(web_contents, "CreateVideo();"));
// Create one player too many and expect everything to explode.
content::WebContentsConsoleObserver console(web_contents);
console.SetPattern("Blocked attempt to create a WebMediaPlayer *");
EXPECT_TRUE(content::ExecJs(web_contents, "CreateVideo();"));
ASSERT_TRUE(console.Wait());
EXPECT_EQ(1u, console.messages().size());
}
} // namespace media
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