[Payment Request] Refactors the edit view controller

ios/showcase/payments/sc_payments_editor_egtest.mm

 // Copyright 2017 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 <EarlGrey/EarlGrey.h>
 
 #import "base/mac/foundation_util.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/ui/autofill/autofill_edit_accessory_view.h"
 #import "ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h"
@@ skipping 46 matching lines @@
                  @"Expected first responder to be of kind %@, got %@.",
                  [UITextField class], [firstResponder class]);
   UITextField* textField =
       base::mac::ObjCCastStrict<UITextField>(firstResponder);
   GREYAssertTrue(
       [[textField accessibilityIdentifier] isEqualToString:accessibilityID],
       @"Expected accessibility identifier to be %@, got %@.", accessibilityID,
       [textField accessibilityIdentifier]);
 }
 
+// Returns the GREYMatcher for the UIAlertView's message displayed for a call
+// that notifies the delegate of selection of a field.
+id<GREYMatcher> UIAlertViewMessageForDelegateCallWithArgument(
+    NSString* argument) {
+  return grey_allOf(
+      grey_text([NSString
+          stringWithFormat:@"paymentRequestEditViewController:"
+                           @"kPaymentRequestEditCollectionViewAccessibilityID "
+                           @"didSelectField:%@",
+                           argument]),
+      grey_sufficientlyVisible(), nil);
+}
+
 }  // namespace
 
 // Tests for the payment request editor view controller.
 @interface SCPaymentsEditorTestCase : ShowcaseTestCase
 @end
 
 @implementation SCPaymentsEditorTestCase
 
 - (void)setUp {
   [super setUp];
   Open(@"PaymentRequestEditViewController");
 }
 
 - (void)tearDown {
   Close();
   [super tearDown];
 }
 
-// Tests if expected labels and textfields exist and have the expected values.
-- (void)testVerifyLabelsAndTextFields {
+// Tests if expected labels and fields exist and have the expected values.
+- (void)testVerifyLabelsAndFields {
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(@"Name*")]
       assertWithMatcher:grey_notNil()];
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
       assertWithMatcher:grey_text(@"John Doe")];
 
+  [[EarlGrey
+      selectElementWithMatcher:grey_allOf(grey_accessibilityLabel(@"Country*"),
+                                          grey_accessibilityValue(@"Canada"),
+                                          nil)]
+      assertWithMatcher:grey_notNil()];
+
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(@"Address*")]
       assertWithMatcher:grey_notNil()];
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(@"Address_textField")]
       assertWithMatcher:grey_text(@"")];
 
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(@"Postal Code")]
       assertWithMatcher:grey_notNil()];
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(@"Postal Code_textField")]
       assertWithMatcher:grey_text(@"")];
 }
 
+// Tests if tapping the selector field notifies the delegate.
+- (void)testVerifyTappingSelectorFieldNotifiesDelegate {
+  // Tap the selector field.
+  [[EarlGrey
+      selectElementWithMatcher:grey_allOf(grey_accessibilityLabel(@"Country*"),
+                                          grey_accessibilityValue(@"Canada"),
+                                          nil)] performAction:grey_tap()];
+
+  // Confirm the delegate is informed.
+  [[EarlGrey
+      selectElementWithMatcher:UIAlertViewMessageForDelegateCallWithArgument(
+                                   @"Label: Country, Value: CAN")]
+      assertWithMatcher:grey_notNil()];
+  [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(
+                                          @"protocol_alerter_done")]
+      performAction:grey_tap()];
+}
+
 // Tests whether tapping the input accessory view's close button dismisses the
 // input accessory view.
 - (void)testInputAccessoryViewCloseButton {
   if (IsIPadIdiom()) {
     // TODO(crbug.com/602666): Investigate why the close button is hidden on
     // iPad.
     EARL_GREY_TEST_DISABLED(
         @"Input accessory view's close button is hidden on iPad");
   }
 
@@ skipping 48 matching lines @@
   [[EarlGrey selectElementWithMatcher:InputAccessoryViewPreviousButton()]
       assertWithMatcher:grey_enabled()];
   // Assert the input accessory view's next button is enabled and tap it.
   [[[EarlGrey selectElementWithMatcher:InputAccessoryViewNextButton()]
       assertWithMatcher:grey_enabled()] performAction:grey_tap()];
 
   // Assert an error message is showing because the address textfield is
   // required.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(
                                           kWarningMessageAccessibilityID)]
-      assertWithMatcher:grey_accessibilityLabel(l10n_util::GetNSString(
-                            IDS_PAYMENTS_FIELD_REQUIRED_VALIDATION_MESSAGE))];
+      assertWithMatcher:grey_accessibilityLabel(@"Field is required")];
 
   // Assert the postal code textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Postal Code_textField");
 
   // Assert the input accessory view's next button is disabled.
   [[EarlGrey selectElementWithMatcher:InputAccessoryViewNextButton()]
       assertWithMatcher:grey_not(grey_enabled())];
   // Assert the input accessory view's previous button is enabled and tap it.
   [[[EarlGrey selectElementWithMatcher:InputAccessoryViewPreviousButton()]
       assertWithMatcher:grey_enabled()] performAction:grey_tap()];
@@ skipping 62 matching lines @@
 
   // Expect non of the textfields to be focused.
   UIResponder* firstResponder =
       [[UIApplication sharedApplication].keyWindow firstResponder];
   GREYAssertFalse([firstResponder isKindOfClass:[UITextField class]],
                   @"Expected first responder not to be of kind %@.",
                   [UITextField class]);
 }
 
 @end