Convert LocaleTests* from ui_tests to browser_tests.

For better readability, this change also adds a local class that over-writes the system locale only in a scope and renames test names.

BUG=121574
TEST=LocaleTestsDanish,LocaleTestsHebrew,LocaleTestsTraditionalChinese

Review URL: http://codereview.chromium.org/10020016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@131523 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 111 insertions, 0 deletions

diff --git a/chrome/browser/locale_tests_browsertest.cc b/chrome/browser/locale_tests_browsertest.cc
new file mode 100644
index 0000000..1b3b287
--- /dev/null
+++ b/chrome/browser/locale_tests_browsertest.cc
@@ -0,0 +1,111 @@
+// Copyright (c) 2012 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/environment.h"
+#include "build/build_config.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "ui/base/ui_base_switches.h"
+
+namespace {
+
+// A class that over-writes the system locale only in a scope. To emulate the
+// specified environment on Linux, this class over-writes a LC_ALL environment
+// variable when creating a LocaleTest object and restore it with the original
+// value when deleting the object. (This environment variable may affect other
+// tests and we have to restore it regardless of the results of LocaleTests.)
+class ScopedLocale {
+ public:
+  explicit ScopedLocale(const char* locale) : locale_(locale) {
+#if defined(OS_LINUX)
+    old_locale_ = getenv("LC_ALL");
+
+    static const struct {
+      const char* chrome_locale;
+      const char* system_locale;
+    } kLocales[] = {
+      { "da", "da_DK.UTF-8" },
+      { "he", "he_IL.UTF-8" },
+      { "zh-TW", "zh-TW.UTF-8" }
+    };
+    bool found_locale = false;
+    for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kLocales); ++i) {
+      if (kLocales[i].chrome_locale == locale) {
+        found_locale = true;
+        setenv("LC_ALL", kLocales[i].system_locale, 1);
+      }
+    }
+    DCHECK(found_locale);
+#endif
+  }
+
+  ~ScopedLocale() {
+#if defined(OS_LINUX)
+    scoped_ptr<base::Environment> env(base::Environment::Create());
+    if (old_locale_) {
+      env->SetVar("LC_ALL", old_locale_);
+    } else {
+      env->UnSetVar("LC_ALL");
+    }
+#endif
+  }
+
+  const std::string& locale() { return locale_; }
+
+ private:
+  std::string locale_;
+  const char* old_locale_;
+};
+
+// A base class for tests used in this file. This class over-writes the system
+// locale and run Chrome with a '--lang' option. To add a new LocaleTest, add a
+// class derived from this class and call the constructor with the locale name
+// used by Chrome.
+class LocaleTestBase : public InProcessBrowserTest {
+ public:
+  explicit LocaleTestBase(const char* locale) : locale_(locale) {
+  }
+
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    command_line->AppendSwitchASCII(switches::kLang, locale_.locale());
+  }
+
+ protected:
+  ScopedLocale locale_;
+};
+
+// Test classes that run Chrome on the Danish locale, the Hebrew locale, and
+// the Traditional-Chinese locale, respectively.
+class LocaleTestDanish : public LocaleTestBase {
+ public:
+  LocaleTestDanish() : LocaleTestBase("da") {
+  }
+};
+
+class LocaleTestHebrew : public LocaleTestBase {
+ public:
+  LocaleTestHebrew() : LocaleTestBase("he") {
+  }
+};
+
+class LocaleTestTraditionalChinese : public LocaleTestBase {
+ public:
+  LocaleTestTraditionalChinese() : LocaleTestBase("zh-TW") {
+  }
+};
+
+}  // namespace
+
+// Start Chrome and shut it down on the Danish locale, the Hebrew locale, and
+// the Traditional-Chinese locale, respectively. These tests do not need any
+// code here because they just verify we can start Chrome and shut it down
+// cleanly on these locales.
+IN_PROC_BROWSER_TEST_F(LocaleTestDanish, TestStart) {
+}
+
+IN_PROC_BROWSER_TEST_F(LocaleTestHebrew, TestStart) {
+}
+
+IN_PROC_BROWSER_TEST_F(LocaleTestTraditionalChinese, TestStart) {
+}