[Mac] Polish the search engine manager

chrome/browser/cocoa/nswindow_local_state_unittest.mm

+// Copyright (c) 2009 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+#include "chrome/browser/cocoa/browser_test_helper.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#import "chrome/browser/cocoa/nswindow_local_state.h"
+#include "chrome/common/pref_service.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+class NSWindowLocalStateTest : public PlatformTest {
+  virtual void SetUp() {
+    path_ = L"NSWindowLocalStateTest";
+    window_.reset(
+        [[NSWindow alloc] initWithContentRect:NSMakeRect(100, 100, 20, 20)
+                                    styleMask:NSTitledWindowMask
+                                      backing:NSBackingStoreBuffered
+                                        defer:NO]);
+    browser_helper_.profile()->GetPrefs()->RegisterDictionaryPref(path_);
+  }
+
+ public:
+  CocoaTestHelper cocoa_helper_;
+  BrowserTestHelper browser_helper_;
+  scoped_nsobject<NSWindow> window_;
+  const wchar_t* path_;
+};
+
+TEST_F(NSWindowLocalStateTest, TestSaveWindowPlacement) {
+  PrefService* prefs = browser_helper_.profile()->GetPrefs();
+  ASSERT_TRUE(prefs != NULL);
+
+  // Check to make sure there is no existing pref for window placement.
+  ASSERT_TRUE(prefs->GetDictionary(path_) == NULL);
+
+  // Ask the window to save its position, then check that a preference
+  // exists.  We're technically passing in a pointer to the user prefs
+  // and not the local state prefs, but a PrefService* is a
+  // PrefService*, and this is a unittest.
+  [window_ saveWindowPositionToPrefs:prefs withPath:path_];
+  EXPECT_TRUE(prefs->GetDictionary(path_) != NULL);
+  int x, y;
+  DictionaryValue* windowPrefs = prefs->GetMutableDictionary(path_);
+  windowPrefs->GetInteger(L"x", &x);
+  windowPrefs->GetInteger(L"y", &y);
+  EXPECT_EQ(x, [window_ frame].origin.x);
+  EXPECT_EQ(y, [window_ frame].origin.y);
+}
+
+TEST_F(NSWindowLocalStateTest, TestRestoreWindowPlacement) {
+  PrefService* prefs = browser_helper_.profile()->GetPrefs();
+  DictionaryValue* windowPrefs = prefs->GetMutableDictionary(path_);
+
+  const int value = 42;
+  windowPrefs->SetInteger(L"x", value);
+  windowPrefs->SetInteger(L"y", value);
+  [window_ restoreWindowPositionFromPrefs:prefs withPath:path_];
+  EXPECT_LT(value, [window_ frame].origin.x);
+  EXPECT_GT(value, [window_ frame].origin.y);
+}