Files
Swiftgram/Tests/ASDisplayViewAccessibilityTests.mm
2018-11-01 08:10:44 -07:00

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//
// ASDisplayViewAccessibilityTests.mm
// Texture
//
// Copyright (c) 2018-present, Pinterest, Inc. 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
//
#import <XCTest/XCTest.h>
#import <AsyncDisplayKit/ASDisplayNode.h>
#import <AsyncDisplayKit/ASDisplayNode+Beta.h>
@interface ASDisplayViewAccessibilityTests : XCTestCase
@end
@implementation ASDisplayViewAccessibilityTests
- (void)testAccessibilityElementsAccessors
{
// Setup nodes with accessibility info
ASDisplayNode *node = nil;
ASDisplayNode *subnode = nil;
node = [[ASDisplayNode alloc] init];
subnode = [[ASDisplayNode alloc] init];
NSString *label = @"foo";
subnode.isAccessibilityElement = YES;
subnode.accessibilityLabel = label;
[node addSubnode:subnode];
XCTAssertEqualObjects([node.view.accessibilityElements.firstObject accessibilityLabel], label);
// NOTE: The following tests will fail unless accessibility is enabled, e.g. by turning the
// accessibility inspector on. See https://github.com/TextureGroup/Texture/pull/1069 for details.
/*XCTAssertEqualObjects([[node.view accessibilityElementAtIndex:0] accessibilityLabel], label);
XCTAssertEqual(node.view.accessibilityElementCount, 1);
XCTAssertEqual([node.view indexOfAccessibilityElement:node.view.accessibilityElements.firstObject], 0);*/
}
- (void)testThatSubnodeAccessibilityLabelAggregationWorks {
// Setup nodes
ASDisplayNode *node = nil;
ASDisplayNode *innerNode1 = nil;
ASDisplayNode *innerNode2 = nil;
node = [[ASDisplayNode alloc] init];
innerNode1 = [[ASDisplayNode alloc] init];
innerNode2 = [[ASDisplayNode alloc] init];
// Initialize nodes with relevant accessibility data
node.isAccessibilityContainer = YES;
innerNode1.accessibilityLabel = @"hello";
innerNode2.accessibilityLabel = @"world";
// Attach the subnodes to the parent node, then ensure their accessibility labels have been'
// aggregated to the parent's accessibility label
[node addSubnode:innerNode1];
[node addSubnode:innerNode2];
XCTAssertEqualObjects([node.view.accessibilityElements.firstObject accessibilityLabel],
@"hello, world", @"Subnode accessibility label aggregation broken %@",
[node.view.accessibilityElements.firstObject accessibilityLabel]);
}
- (void)testThatContainerAccessibilityLabelOverrideStopsAggregation {
// Setup nodes
ASDisplayNode *node = nil;
ASDisplayNode *innerNode = nil;
node = [[ASDisplayNode alloc] init];
innerNode = [[ASDisplayNode alloc] init];
// Initialize nodes with relevant accessibility data
node.isAccessibilityContainer = YES;
node.accessibilityLabel = @"hello";
innerNode.accessibilityLabel = @"world";
// Attach the subnode to the parent node, then ensure the parent's accessibility label does not
// get aggregated with the subnode's label
[node addSubnode:innerNode];
XCTAssertEqualObjects([node.view.accessibilityElements.firstObject accessibilityLabel], @"hello",
@"Container accessibility label override broken %@",
[node.view.accessibilityElements.firstObject accessibilityLabel]);
}
@end