Bring the feedback button to the Mac sad tab

chrome/browser/ui/cocoa/tab_contents/sad_tab_controller_unittest.mm

-// 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/debug/debugger.h"
-#import "base/mac/foundation_util.h"
-#include "base/mac/scoped_nsobject.h"
-#import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
-#import "chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h"
-#import "chrome/browser/ui/cocoa/tab_contents/sad_tab_view_cocoa.h"
-#include "chrome/common/url_constants.h"
-#include "chrome/test/base/chrome_render_view_host_test_harness.h"
-#include "chrome/test/base/testing_profile.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_delegate.h"
-#import "ui/base/cocoa/controls/hyperlink_text_view.h"
-
-@interface SadTabView (ExposedForTesting)
-// Implementation is below.
-- (HyperlinkTextView*)helpTextView;
-@end
-
-@implementation SadTabView (ExposedForTesting)
-- (HyperlinkTextView*)helpTextView {
-  NSView* containerView = [[self subviews] lastObject];
-  for (NSView* view in [containerView subviews]) {
-    if (auto textView = base::mac::ObjCCast<HyperlinkTextView>(view))
-      return textView;
-  }
-  return nil;
-}
-@end
-
-namespace {
-
-class ContentsDelegate : public content::WebContentsDelegate {
- public:
-  content::WebContents* OpenURLFromTab(
-      content::WebContents* source,
-      const content::OpenURLParams& params) override {
-    opened_url_ = params.url;
-    return nullptr;
-  }
-
-  const GURL& OpenedURL() { return opened_url_; }
-
- private:
-  GURL opened_url_;
-};
-
-class SadTabControllerTest : public ChromeRenderViewHostTestHarness {
- public:
-  SadTabControllerTest() : test_window_(nil) {}
-
-  void SetUp() override {
-    ChromeRenderViewHostTestHarness::SetUp();
-    web_contents()->SetDelegate(&contents_delegate_);
-    // Inherting from ChromeRenderViewHostTestHarness means we can't inherit
-    // from from CocoaTest, so do a bootstrap and create test window.
-    CocoaTest::BootstrapCocoa();
-    test_window_ = [[CocoaTestHelperWindow alloc] init];
-    if (base::debug::BeingDebugged()) {
-      [test_window_ orderFront:nil];
-    } else {
-      [test_window_ orderBack:nil];
-    }
-  }
-
-  void TearDown() override {
-    [test_window_ close];
-    test_window_ = nil;
-    ChromeRenderViewHostTestHarness::TearDown();
-  }
-
-  // Creates the controller and adds its view to contents, caller has ownership.
-  SadTabController* CreateController() {
-    SadTabController* controller =
-        [[SadTabController alloc] initWithWebContents:web_contents()];
-    EXPECT_TRUE(controller);
-    NSView* view = [controller view];
-    EXPECT_TRUE(view);
-    NSView* contentView = [test_window_ contentView];
-    [contentView addSubview:view];
-
-    return controller;
-  }
-
-  HyperlinkTextView* GetHelpTextView(SadTabController* controller) {
-    SadTabView* view = static_cast<SadTabView*>([controller view]);
-    return ([view helpTextView]);
-  }
-
-  ContentsDelegate contents_delegate_;
-  CocoaTestHelperWindow* test_window_;
-};
-
-TEST_F(SadTabControllerTest, ClickOnLink) {
-  base::scoped_nsobject<SadTabController> controller(CreateController());
-  HyperlinkTextView* help = GetHelpTextView(controller);
-  EXPECT_TRUE(help);
-  EXPECT_TRUE(contents_delegate_.OpenedURL().is_empty());
-  [help clickedOnLink:@(chrome::kCrashReasonURL) atIndex:0];
-  EXPECT_EQ(contents_delegate_.OpenedURL(), GURL(chrome::kCrashReasonURL));
-}
-
-}  // namespace