Support the OS X find pasteboard on OS X.

chrome/browser/cocoa/find_pasteboard_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"
+#import "chrome/browser/cocoa/find_pasteboard.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+// A subclass of FindPasteboard that doesn't write to the real find pasteboard.
+@interface FindPasteboardTesting : FindPasteboard {
+ @public
+  int notificationCount_;
+ @private
+  scoped_nsobject<NSPasteboard> pboard_;
+}
+- (NSPasteboard*)findPboard;
+
+- (void)callback:(id)sender;
+
+// These are for checking that pasteboard content is copied to/from the
+// FindPasteboard correctly.
+- (NSString*)findPboardText;
+- (void)setFindPboardText:(NSString*)text;
+@end
+
+@implementation FindPasteboardTesting
+
+- (id)init {
+  if ((self = [super init])) {
+    pboard_.reset([[NSPasteboard pasteboardWithUniqueName] retain]);
+  }
+  return self;
+}
+
+- (NSPasteboard*)findPboard {
+  return pboard_.get();
+}
+
+- (void)callback:(id)sender {
+  ++notificationCount_;
+}
+
+- (void)setFindPboardText:(NSString*)text {
+  [pboard_.get() declareTypes:[NSArray arrayWithObject:NSStringPboardType]
+                        owner:nil];
+  [pboard_.get() setString:text forType:NSStringPboardType];
+}
+
+- (NSString*)findPboardText {
+  return [pboard_.get() stringForType:NSStringPboardType];
+}
+@end
+
+namespace {
+
+class FindPasteboardTest : public PlatformTest {
+ public:
+  FindPasteboardTest() {
+    pboard_.reset([[FindPasteboardTesting alloc] init]);
+  }
+ protected:
+  scoped_nsobject<FindPasteboardTesting> pboard_;
+  CocoaTestHelper helper_;
+};
+
+TEST_F(FindPasteboardTest, SettingTextUpdatesPboard) {
+  [pboard_.get() setFindText:@"text"];
+  EXPECT_EQ(
+      NSOrderedSame,
+      [[pboard_.get() findPboardText] compare:@"text"]);
+}
+
+TEST_F(FindPasteboardTest, ReadingFromPboardUpdatesFindText) {
+  [pboard_.get() setFindPboardText:@"text"];
+  [pboard_.get() loadTextFromPasteboard:nil];
+  EXPECT_EQ(
+      NSOrderedSame,
+      [[pboard_.get() findText] compare:@"text"]);
+}
+
+TEST_F(FindPasteboardTest, SendsNotificationWhenTextChanges) {
+  [[NSNotificationCenter defaultCenter]
+      addObserver:pboard_.get()
+         selector:@selector(callback:)
+             name:kFindPasteboardChangedNotification
+           object:pboard_.get()];
+  EXPECT_EQ(0, pboard_.get()->notificationCount_);
+  [pboard_.get() setFindText:@"text"];
+  EXPECT_EQ(1, pboard_.get()->notificationCount_);
+  [pboard_.get() setFindText:@"text"];
+  EXPECT_EQ(1, pboard_.get()->notificationCount_);
+  [pboard_.get() setFindText:@"other text"];
+  EXPECT_EQ(2, pboard_.get()->notificationCount_);
+
+  [pboard_.get() setFindPboardText:@"other text"];
+  [pboard_.get() loadTextFromPasteboard:nil];
+  EXPECT_EQ(2, pboard_.get()->notificationCount_);
+
+  [pboard_.get() setFindPboardText:@"otherer text"];
+  [pboard_.get() loadTextFromPasteboard:nil];
+  EXPECT_EQ(3, pboard_.get()->notificationCount_);
+
+  [[NSNotificationCenter defaultCenter] removeObserver:pboard_.get()];
+}
+
+
+}  // namespace