(On behalf of yusukes) Handle Caps Lock short cut (Shift+Search) in ash [part 2 of 2].

chrome/browser/ui/views/aura/caps_lock_handler_browsertest.cc

+// 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 "chrome/browser/ui/views/aura/caps_lock_handler.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/ui_test_utils.h"
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/input_method/xkeyboard.h"
+using namespace chromeos::input_method;
+#endif
+
+namespace {
+
+#if defined(OS_CHROMEOS)
+class DummyXKeyboard : public XKeyboard {
+ public:
+  explicit DummyXKeyboard(bool initial_caps_lock_state)
+      : caps_lock_is_enabled_(initial_caps_lock_state) {}
+  virtual ~DummyXKeyboard() {}
+
+  // Overridden from chrome::input_method::XKeyboard:
+  virtual bool SetCurrentKeyboardLayoutByName(
+      const std::string& layout_name) OVERRIDE {
+    return true;
+  }
+  virtual bool RemapModifierKeys(const ModifierMap& modifier_map) OVERRIDE {
+    return true;
+  }
+  virtual bool ReapplyCurrentKeyboardLayout() OVERRIDE {
+    return true;
+  }
+  virtual void ReapplyCurrentModifierLockStatus() OVERRIDE {}
+  virtual void SetLockedModifiers(
+      ModifierLockStatus new_caps_lock_status,
+      ModifierLockStatus new_num_lock_status) OVERRIDE {}
+  virtual void SetNumLockEnabled(bool enable_num_lock) OVERRIDE {}
+  virtual void SetCapsLockEnabled(bool enable_caps_lock) OVERRIDE {
+    caps_lock_is_enabled_ = enable_caps_lock;
+  }
+  virtual bool NumLockIsEnabled() OVERRIDE {
+    return true;
+  }
+  virtual bool CapsLockIsEnabled() OVERRIDE {
+    return caps_lock_is_enabled_;
+  }
+  virtual std::string CreateFullXkbLayoutName(
+      const std::string& layout_name,
+      const ModifierMap& modifire_map) OVERRIDE {
+    return "";
+  }
+  virtual unsigned int GetNumLockMask() OVERRIDE {
+    return 0;
+  }
+  virtual void GetLockedModifiers(bool* out_caps_lock_enabled,
+                                  bool* out_num_lock_enabled) OVERRIDE {}
+
+ private:
+  bool caps_lock_is_enabled_;
+
+  DISALLOW_COPY_AND_ASSIGN(DummyXKeyboard);
+};
+
+class CapsLockHandlerTest : public InProcessBrowserTest {
+ public:
+  CapsLockHandlerTest()
+      : initial_caps_lock_state_(false),
+        xkeyboard_(initial_caps_lock_state_) {
+  }
+  virtual void SetUp() OVERRIDE {
+    handler_.reset(new CapsLockHandler(&xkeyboard_));
+    // Force CapsLockHandler::HandleToggleCapsLock() to toggle the lock state.
+    handler_->set_is_running_on_chromeos_for_test(true);
+  }
+  virtual void TearDown() OVERRIDE {
+    handler_.reset();
+  }
+
+ protected:
+  const bool initial_caps_lock_state_;
+  DummyXKeyboard xkeyboard_;
+  scoped_ptr<CapsLockHandler> handler_;
+
+  DISALLOW_COPY_AND_ASSIGN(CapsLockHandlerTest);
+};
+#endif
+
+}  // namespace
+
+// Check if HandleToggleCapsLock() really changes the lock state.
+IN_PROC_BROWSER_TEST_F(CapsLockHandlerTest, TestCapsLock) {
+#if defined(OS_CHROMEOS)
+  EXPECT_EQ(initial_caps_lock_state_, handler_->caps_lock_is_on_for_test());
+  EXPECT_TRUE(handler_->HandleToggleCapsLock());
+  EXPECT_EQ(!initial_caps_lock_state_, xkeyboard_.CapsLockIsEnabled());
+  handler_->OnCapsLockChange(!initial_caps_lock_state_);
+  EXPECT_EQ(!initial_caps_lock_state_, handler_->caps_lock_is_on_for_test());
+  EXPECT_TRUE(handler_->HandleToggleCapsLock());
+  handler_->OnCapsLockChange(initial_caps_lock_state_);
+  EXPECT_EQ(initial_caps_lock_state_, xkeyboard_.CapsLockIsEnabled());
+  EXPECT_EQ(initial_caps_lock_state_, handler_->caps_lock_is_on_for_test());
+#endif
+}