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[Collections] Change image when accessoryType changes (#2354)
Clients were unable to change the image of a cell's accessory type without
reloading the entire cell in the collectionView.
Closes #2353
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Robert Moore
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Nov 6, 2017
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42 changes: 42 additions & 0 deletions
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components/CollectionCells/tests/unit/MDCCollectionViewCellTests.m
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/* | ||
Copyright 2017-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. | ||
*/ | ||
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#import <XCTest/XCTest.h> | ||
#import "MaterialCollections.h" | ||
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@interface MDCCollectionViewCellTests : XCTestCase | ||
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@end | ||
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@implementation MDCCollectionViewCellTests | ||
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- (void)testAccessoryChange { | ||
// Given | ||
MDCCollectionViewCell *cell = [[MDCCollectionViewCell alloc] initWithFrame:CGRectZero]; | ||
cell.accessoryType = MDCCollectionViewCellAccessoryCheckmark; | ||
XCTAssertTrue([cell.accessoryView isKindOfClass:[UIImageView class]]); | ||
UIImageView *accessoryImageView = (UIImageView *)cell.accessoryView; | ||
UIImage *originalImage = accessoryImageView.image; | ||
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// When | ||
cell.accessoryType = MDCCollectionViewCellAccessoryDetailButton; | ||
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// Then | ||
UIImage *newImage = accessoryImageView.image; | ||
XCTAssertNotEqualObjects(originalImage, newImage); | ||
} | ||
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@end |