components/FeatureHighlight/tests/unit/FeatureHighlightAccessibilityTests.m

/*
 Copyright 2018-present the Material Components for iOS authors. All Rights Reserved.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */

#import <XCTest/XCTest.h>

#import "MaterialFeatureHighlight.h"
#import "MDCFeatureHighlightView+Private.h"

@interface MDCFeatureHighlightViewController (Testing)
@property(nonatomic, strong) MDCFeatureHighlightView *view;
@end

@interface FeatureHighlightAccessibilityTests : XCTestCase

@end

@implementation FeatureHighlightAccessibilityTests

- (void)testAccessibilityHintDefaultAfterLoadingView {
  // Given
  UIView *view = [[UIView alloc] init];
  UIView *view2 = [[UIView alloc] init];
  MDCFeatureHighlightViewController *controller =
  [[MDCFeatureHighlightViewController alloc] initWithHighlightedView:view
                                                         andShowView:view2
                                                          completion:nil];

  // When (cause the view to load)
  (void)controller.view;

  // Then
  // TODO(https://github.com/material-components/material-components-ios/issues/3644 ):
  // Switch these to XCTAssertNil (or refactor tests) once the default is removed.
  XCTAssertNotNil(controller.accessibilityHint);
  XCTAssertNotNil(controller.view.accessibilityHint);
}

- (void)testSetAccessibilityHint {
  // Given
  NSString *accessibilityHint = @"A great blue ox.";
  UIView *view = [[UIView alloc] init];
  UIView *view2 = [[UIView alloc] init];
  MDCFeatureHighlightViewController *controller =
      [[MDCFeatureHighlightViewController alloc] initWithHighlightedView:view
                                                             andShowView:view2
                                                              completion:nil];
  controller.accessibilityHint = accessibilityHint;

  // Then
  XCTAssertEqualObjects(controller.view.accessibilityHint, accessibilityHint);
}

- (void)testSetAccessibilityHintNil {
  // Given
  UIView *view = [[UIView alloc] init];
  UIView *view2 = [[UIView alloc] init];
  MDCFeatureHighlightViewController *controller =
  [[MDCFeatureHighlightViewController alloc] initWithHighlightedView:view
                                                         andShowView:view2
                                                          completion:nil];
  controller.accessibilityHint = nil;

  // Then
  XCTAssertNil(controller.accessibilityHint);
  XCTAssertNil(controller.view.accessibilityHint);
}

@end