ios/showcase/payments/sc_payments_editor_egtest.mm - chromium/src - Git at Google

 // 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>

 #include "base/ios/ios_util.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"
 #include "ios/chrome/browser/ui/util/ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/showcase/test/showcase_eg_utils.h"
 #import "ios/showcase/test/showcase_test_case.h"
 #include "ui/base/l10n/l10n_util.h"

 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif

 @interface UIWindow (Hidden)
 - (UIResponder*)firstResponder;
 @end

 namespace {
 using ::showcase_utils::Open;
 using ::showcase_utils::Close;

 // Returns the GREYMatcher for the input accessory view's previus button.
 id<GREYMatcher> InputAccessoryViewPreviousButton() {
   return grey_allOf(
       grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_PREVIOUS)),
       grey_accessibilityTrait(UIAccessibilityTraitButton),
       grey_sufficientlyVisible(), nil);
 }

 // Returns the GREYMatcher for the input accessory view's next button.
 id<GREYMatcher> InputAccessoryViewNextButton() {
   return grey_allOf(
       grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_NEXT)),
       grey_accessibilityTrait(UIAccessibilityTraitButton),
       grey_kindOfClass([UIButton class]), grey_sufficientlyVisible(), nil);
 }

 // Returns the GREYMatcher for the input accessory view's close button.
 id<GREYMatcher> InputAccessoryViewCloseButton() {
   return grey_allOf(
       grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_CLOSE)),
       grey_accessibilityTrait(UIAccessibilityTraitButton),
       grey_sufficientlyVisible(), nil);
 }

 void AssertTextFieldWithAccessibilityIDIsFirstResponder(
     NSString* accessibilityID) {
   UIResponder* firstResponder =
       [[UIApplication sharedApplication].keyWindow firstResponder];
   GREYAssertTrue([firstResponder isKindOfClass:[UITextField class]],
                  @"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);
 }

 // Matcher for the next key on the keyboard.
 id<GREYMatcher> KeyboardNextKey() {
   return grey_allOf(grey_anyOf(grey_accessibilityID(@"Next"),
                                grey_accessibilityID(@"Next:"), nil),
                     grey_accessibilityTrait(UIAccessibilityTraitButton),
                     grey_accessibilityTrait(UIAccessibilityTraitKeyboardKey),
                     grey_sufficientlyVisible(), nil);
 }

 }  // namespace

 // Tests for the payment request editor view controller.
 @interface SCPaymentsEditorTestCase : ShowcaseTestCase
 @end

 @implementation SCPaymentsEditorTestCase

 // Per crbug.com/845186, Disable flakey iPad Retina tests that are limited
 // to iOS 10.2.
 + (NSArray*)testInvocations {
 #if TARGET_IPHONE_SIMULATOR
   if (IsIPadIdiom() && !base::ios::IsRunningOnOrLater(10, 3, 0))
     return @[];
 #endif  // TARGET_IPHONE_SIMULATOR
   return [super testInvocations];
 }

 - (void)setUp {
   [super setUp];
   Open(@"PaymentRequestEditViewController");
 }

 - (void)tearDown {
   Close();
   [super tearDown];
 }

 // 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(@"City/Province*")]
       assertWithMatcher:grey_notNil()];
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(@"City/Province_textField")]
       assertWithMatcher:grey_text(@"Montreal / Quebec")];

   [[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(@"")];

   [[EarlGrey
       selectElementWithMatcher:grey_allOf(grey_accessibilityLabel(@"Save"),
                                           grey_accessibilityValue(
                                               l10n_util::GetNSString(
                                                   IDS_IOS_SETTING_ON)),
                                           nil)]
       assertWithMatcher:grey_notNil()];
 }

 // Tests if the expected input view for the province field is displaying, when
 // the field is focused, and that the expected row is selected.
 - (void)testVerifyProvinceFieldInputView {
   // Tap the province textfield.
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(@"City/Province_textField")]
       performAction:grey_tap()];

   // Assert that a UIPicker view is displaying and the expected rows are
   // selected.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(
                                           @"City/Province_pickerView")]
       assertWithMatcher:grey_allOf(grey_pickerColumnSetToValue(0, @"Montreal"),
                                    grey_pickerColumnSetToValue(1, @"Quebec"),
                                    nil)];
 }

 // 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");
   }

   // Initially, the input accessory view is not showing.
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(
                                    kAutofillEditAccessoryViewAccessibilityID)]
       assertWithMatcher:grey_nil()];

   // Tap the name textfield.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
       performAction:grey_tap()];

   // Assert the input accessory view's close button is enabled and tap it.
   [[[EarlGrey selectElementWithMatcher:InputAccessoryViewCloseButton()]
       assertWithMatcher:grey_enabled()] performAction:grey_tap()];

   // Tapping the input accessory view's close button should've dismissed it.
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(
                                    kAutofillEditAccessoryViewAccessibilityID)]
       assertWithMatcher:grey_nil()];
 }

 // Tests whether the input accessory view navigation buttons have the correct
 // states depending on the focused textfield and that they can be used to
 // navigate between the textfields.
 - (void)testInputAccessoryViewNavigationButtons {
   // Initially, no error message is showing.
   [[EarlGrey selectElementWithMatcher:chrome_test_util::WarningMessageView()]
       assertWithMatcher:grey_nil()];

   // Tap the name textfield.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
       performAction:grey_tap()];

   // Assert the name textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Name_textField");

   // Assert the input accessory view's previous button is disabled.
   [[EarlGrey selectElementWithMatcher:InputAccessoryViewPreviousButton()]
       assertWithMatcher:grey_not(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 the province textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(
       @"City/Province_textField");

   // Assert the input accessory view's previous button is enabled.
   [[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 the address textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Address_textField");

   // Assert the input accessory view's previous button is enabled.
   [[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:chrome_test_util::WarningMessageView()]
       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()];

   // Assert the address textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Address_textField");

   // Type in an address.
   [[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(@"Address_textField")]
       performAction:grey_replaceText(@"Main St")];

   // Tap the input accessory view's next button.
   [[EarlGrey selectElementWithMatcher:InputAccessoryViewNextButton()]
       performAction:grey_tap()];

   // Assert the error message disappeared because an address was typed in.
   [[EarlGrey selectElementWithMatcher:chrome_test_util::WarningMessageView()]
       assertWithMatcher:grey_notVisible()];
 }

 // Tests tapping the return key on every textfield causes the next textfield to
 // get focus except for the last textfield in which case causes the focus to go
 // away from the textfield.
 - (void)testNavigationByTappingReturn {
   // Tap the name textfield.
   [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
       performAction:grey_tap()];

   // Assert the name textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Name_textField");

   // Press the return key.
   [[EarlGrey selectElementWithMatcher:KeyboardNextKey()]
       performAction:grey_tap()];

   // Assert the province textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(
       @"City/Province_textField");

   // The standard keyboard does not display for the province field. Instead, tap
   // the postal code textfield.
   id<GREYMatcher> matcher =
       grey_allOf(grey_accessibilityID(@"Postal Code_textField"),
                  grey_interactable(), grey_sufficientlyVisible(), nil);
   [[[EarlGrey selectElementWithMatcher:matcher]
          usingSearchAction:grey_scrollInDirection(kGREYDirectionDown, 50)
       onElementWithMatcher:
           grey_accessibilityID(
               @"kPaymentRequestEditCollectionViewAccessibilityID")]
       performAction:grey_tap()];

   // Assert the postal code textfield is focused.
   AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Postal Code_textField");

   // Press the return key.
   [[EarlGrey selectElementWithMatcher:KeyboardNextKey()]
       performAction:grey_tap()];

   // 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
	// 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>

	#include "base/ios/ios_util.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"
	#include "ios/chrome/browser/ui/util/ui_util.h"
	#include "ios/chrome/grit/ios_strings.h"
	#import "ios/chrome/test/earl_grey/chrome_matchers.h"
	#import "ios/showcase/test/showcase_eg_utils.h"
	#import "ios/showcase/test/showcase_test_case.h"
	#include "ui/base/l10n/l10n_util.h"

	#if !defined(__has_feature) \|\| !__has_feature(objc_arc)
	#error "This file requires ARC support."
	#endif

	@interface UIWindow (Hidden)
	- (UIResponder*)firstResponder;
	@end

	namespace {
	using ::showcase_utils::Open;
	using ::showcase_utils::Close;

	// Returns the GREYMatcher for the input accessory view's previus button.
	id<GREYMatcher> InputAccessoryViewPreviousButton() {
	return grey_allOf(
	grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_PREVIOUS)),
	grey_accessibilityTrait(UIAccessibilityTraitButton),
	grey_sufficientlyVisible(), nil);
	}

	// Returns the GREYMatcher for the input accessory view's next button.
	id<GREYMatcher> InputAccessoryViewNextButton() {
	return grey_allOf(
	grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_NEXT)),
	grey_accessibilityTrait(UIAccessibilityTraitButton),
	grey_kindOfClass([UIButton class]), grey_sufficientlyVisible(), nil);
	}

	// Returns the GREYMatcher for the input accessory view's close button.
	id<GREYMatcher> InputAccessoryViewCloseButton() {
	return grey_allOf(
	grey_accessibilityLabel(l10n_util::GetNSString(IDS_ACCNAME_CLOSE)),
	grey_accessibilityTrait(UIAccessibilityTraitButton),
	grey_sufficientlyVisible(), nil);
	}

	void AssertTextFieldWithAccessibilityIDIsFirstResponder(
	NSString* accessibilityID) {
	UIResponder* firstResponder =
	[[UIApplication sharedApplication].keyWindow firstResponder];
	GREYAssertTrue([firstResponder isKindOfClass:[UITextField class]],
	@"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);
	}

	// Matcher for the next key on the keyboard.
	id<GREYMatcher> KeyboardNextKey() {
	return grey_allOf(grey_anyOf(grey_accessibilityID(@"Next"),
	grey_accessibilityID(@"Next:"), nil),
	grey_accessibilityTrait(UIAccessibilityTraitButton),
	grey_accessibilityTrait(UIAccessibilityTraitKeyboardKey),
	grey_sufficientlyVisible(), nil);
	}

	} // namespace

	// Tests for the payment request editor view controller.
	@interface SCPaymentsEditorTestCase : ShowcaseTestCase
	@end

	@implementation SCPaymentsEditorTestCase

	// Per crbug.com/845186, Disable flakey iPad Retina tests that are limited
	// to iOS 10.2.
	+ (NSArray*)testInvocations {
	#if TARGET_IPHONE_SIMULATOR
	if (IsIPadIdiom() && !base::ios::IsRunningOnOrLater(10, 3, 0))
	return @[];
	#endif // TARGET_IPHONE_SIMULATOR
	return [super testInvocations];
	}

	- (void)setUp {
	[super setUp];
	Open(@"PaymentRequestEditViewController");
	}

	- (void)tearDown {
	Close();
	[super tearDown];
	}

	// 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(@"City/Province*")]
	assertWithMatcher:grey_notNil()];
	[[EarlGrey
	selectElementWithMatcher:grey_accessibilityID(@"City/Province_textField")]
	assertWithMatcher:grey_text(@"Montreal / Quebec")];

	[[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(@"")];

	[[EarlGrey
	selectElementWithMatcher:grey_allOf(grey_accessibilityLabel(@"Save"),
	grey_accessibilityValue(
	l10n_util::GetNSString(
	IDS_IOS_SETTING_ON)),
	nil)]
	assertWithMatcher:grey_notNil()];
	}

	// Tests if the expected input view for the province field is displaying, when
	// the field is focused, and that the expected row is selected.
	- (void)testVerifyProvinceFieldInputView {
	// Tap the province textfield.
	[[EarlGrey
	selectElementWithMatcher:grey_accessibilityID(@"City/Province_textField")]
	performAction:grey_tap()];

	// Assert that a UIPicker view is displaying and the expected rows are
	// selected.
	[[EarlGrey selectElementWithMatcher:grey_accessibilityID(
	@"City/Province_pickerView")]
	assertWithMatcher:grey_allOf(grey_pickerColumnSetToValue(0, @"Montreal"),
	grey_pickerColumnSetToValue(1, @"Quebec"),
	nil)];
	}

	// 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");
	}

	// Initially, the input accessory view is not showing.
	[[EarlGrey
	selectElementWithMatcher:grey_accessibilityID(
	kAutofillEditAccessoryViewAccessibilityID)]
	assertWithMatcher:grey_nil()];

	// Tap the name textfield.
	[[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
	performAction:grey_tap()];

	// Assert the input accessory view's close button is enabled and tap it.
	[[[EarlGrey selectElementWithMatcher:InputAccessoryViewCloseButton()]
	assertWithMatcher:grey_enabled()] performAction:grey_tap()];

	// Tapping the input accessory view's close button should've dismissed it.
	[[EarlGrey
	selectElementWithMatcher:grey_accessibilityID(
	kAutofillEditAccessoryViewAccessibilityID)]
	assertWithMatcher:grey_nil()];
	}

	// Tests whether the input accessory view navigation buttons have the correct
	// states depending on the focused textfield and that they can be used to
	// navigate between the textfields.
	- (void)testInputAccessoryViewNavigationButtons {
	// Initially, no error message is showing.
	[[EarlGrey selectElementWithMatcher:chrome_test_util::WarningMessageView()]
	assertWithMatcher:grey_nil()];

	// Tap the name textfield.
	[[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
	performAction:grey_tap()];

	// Assert the name textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Name_textField");

	// Assert the input accessory view's previous button is disabled.
	[[EarlGrey selectElementWithMatcher:InputAccessoryViewPreviousButton()]
	assertWithMatcher:grey_not(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 the province textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(
	@"City/Province_textField");

	// Assert the input accessory view's previous button is enabled.
	[[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 the address textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Address_textField");

	// Assert the input accessory view's previous button is enabled.
	[[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:chrome_test_util::WarningMessageView()]
	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()];

	// Assert the address textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Address_textField");

	// Type in an address.
	[[EarlGrey
	selectElementWithMatcher:grey_accessibilityID(@"Address_textField")]
	performAction:grey_replaceText(@"Main St")];

	// Tap the input accessory view's next button.
	[[EarlGrey selectElementWithMatcher:InputAccessoryViewNextButton()]
	performAction:grey_tap()];

	// Assert the error message disappeared because an address was typed in.
	[[EarlGrey selectElementWithMatcher:chrome_test_util::WarningMessageView()]
	assertWithMatcher:grey_notVisible()];
	}

	// Tests tapping the return key on every textfield causes the next textfield to
	// get focus except for the last textfield in which case causes the focus to go
	// away from the textfield.
	- (void)testNavigationByTappingReturn {
	// Tap the name textfield.
	[[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Name_textField")]
	performAction:grey_tap()];

	// Assert the name textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Name_textField");

	// Press the return key.
	[[EarlGrey selectElementWithMatcher:KeyboardNextKey()]
	performAction:grey_tap()];

	// Assert the province textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(
	@"City/Province_textField");

	// The standard keyboard does not display for the province field. Instead, tap
	// the postal code textfield.
	id<GREYMatcher> matcher =
	grey_allOf(grey_accessibilityID(@"Postal Code_textField"),
	grey_interactable(), grey_sufficientlyVisible(), nil);
	[[[EarlGrey selectElementWithMatcher:matcher]
	usingSearchAction:grey_scrollInDirection(kGREYDirectionDown, 50)
	onElementWithMatcher:
	grey_accessibilityID(
	@"kPaymentRequestEditCollectionViewAccessibilityID")]
	performAction:grey_tap()];

	// Assert the postal code textfield is focused.
	AssertTextFieldWithAccessibilityIDIsFirstResponder(@"Postal Code_textField");

	// Press the return key.
	[[EarlGrey selectElementWithMatcher:KeyboardNextKey()]
	performAction:grey_tap()];

	// 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