Support javascript gtests in an extension background page.

chrome/test/base/javascript_browsertest.h

+// Copyright 2014 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 CHROME_TEST_BASE_JAVASCRIPT_BROWSERTEST_H_
+#define CHROME_TEST_BASE_JAVASCRIPT_BROWSERTEST_H_
+
+#include "base/memory/scoped_vector.h"
+#include "base/strings/string16.h"
+#include "base/values.h"
+#include "chrome/test/base/in_process_browser_test.h"
+
+class JavaScriptBrowserTest : public InProcessBrowserTest {

[Peter Lundblad, 2014/06/08 23:27:22]

Documentation?

[David Tseng, 2014/06/10 05:35:22]

Done.

+ public:
+  static const base::FilePath::CharType kA11yAuditLibraryJSPath[];
+  static const base::FilePath::CharType kMockJSPath[];
+  static const base::FilePath::CharType kWebUILibraryJS[];
+  static const base::FilePath::CharType kWebUITestFolder[];

[Peter Lundblad, 2014/06/08 23:27:22]

Are these statics used by anything or could they be left as file-private?

[David Tseng, 2014/06/10 05:35:22]

They're used by some of the print preview tests I believe. Should clean these up
but for a future cl.

+
+  typedef ScopedVector<const base::Value> ConstValueVector;
+  JavaScriptBrowserTest() {}
+  virtual ~JavaScriptBrowserTest() {}
+
+  // Add a custom helper JS library for your test.
+  // If a relative path is specified, it'll be read
+  // as relative to the test data dir.
+  void AddLibrary(const base::FilePath& library_path);
+
+ protected:
+  void SetUpOnMainThread();

[Peter Lundblad, 2014/06/08 23:27:22]

OVERRIDE

[David Tseng, 2014/06/10 05:35:22]

Done.

+
+  // Builds a vector of strings of all added javascript libraries suitable for
+  // execution by subclasses.
+  void BuildJavascriptLibraries(std::vector<base::string16>* libraries);
+
+  // Builds a string with a call to the runTest JS function, passing the
+  // given |is_async|, |test_name| and its |args|.
+  // This is then suitable for execution by subclasses in a
+  // |RunJavaScriptBrowserTestF|
+  // call.

[dmazzoni, 2014/06/09 06:59:46]

nit: fits on previous line

[David Tseng, 2014/06/10 05:35:22]

Done.

+  base::string16 BuildRunTestJSCall(bool is_async,
+                                    const std::string& test_name,
+                                    const ConstValueVector& args);
+
+ private:
+  // User added libraries.
+  std::vector<base::FilePath> user_libraries_;
+
+  // User library search paths.
+  std::vector<base::FilePath> library_search_paths_;
+
+  DISALLOW_COPY_AND_ASSIGN(JavaScriptBrowserTest);
+};
+
+#endif  // CHROME_TEST_BASE_JAVASCRIPT_BROWSERTEST_H_