Creates coordinator for ActionSheet and TextInput

ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm

Index: ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
diff --git a/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm b/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..2cf73b94e37182279c786799f57b982ef1a84262
--- /dev/null
+++ b/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
@@ -0,0 +1,54 @@
+// Copyright 2016 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 "ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator.h"
+
+#import <UIKit/UIKit.h>
+
+#import "base/mac/foundation_util.h"
+#include "testing/platform_test.h"
+
+// Tests that if there is a popover, it uses the CGRect passed in init.
+TEST(ActionSheetCoordinatorTest, CGRectUsage) {
+  // Setup.
+  UIWindow* window = [[[UIWindow alloc]
+      initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
+  [window makeKeyAndVisible];
+  UIViewController* viewController =
+      [[[UIViewController alloc] init] autorelease];
+  [window setRootViewController:viewController];
+
+  UIView* view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]

[lpromero, 2016/07/21 21:47:50]

Optional nit: I'd use viewController.view.bounds instead.

[gambard, 2016/07/22 13:51:19]

Done.

+      autorelease];
+
+  [viewController.view addSubview:view];
+  CGRect rect = CGRectMake(124, 432, 126, 63);
+  AlertCoordinator* alertCoordinator = [[[ActionSheetCoordinator alloc]
+      initWithBaseViewController:viewController
+                           title:@"title"
+                         message:nil
+                            rect:rect
+                            view:view] autorelease];
+
+  // Action.
+  [alertCoordinator start];
+
+  // Test.
+  // Get the alert.
+  EXPECT_TRUE([viewController.presentedViewController
+      isKindOfClass:[UIAlertController class]]);
+  UIAlertController* alertController =
+      base::mac::ObjCCastStrict<UIAlertController>(
+          viewController.presentedViewController);
+
+  // Test the results.
+  EXPECT_EQ(UIAlertControllerStyleActionSheet, alertController.preferredStyle);
+
+  if (alertController.popoverPresentationController) {
+    UIPopoverPresentationController* popover =
+        alertController.popoverPresentationController;
+    EXPECT_TRUE(CGRectEqualToRect(rect, popover.sourceRect));
+    EXPECT_EQ(view, popover.sourceView);
+  }
+}