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* Add unit test to confirm that supplementary items must be contained within actual sections * [ASLayoutInspecting] Deprecate collectionView:numberOfSectionsForSupplementaryNodeOfKind: * Add another test to dig deeper into UICollectionView
71 lines
3.0 KiB
Objective-C
71 lines
3.0 KiB
Objective-C
//
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// ASUICollectionViewTests.m
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// AsyncDisplayKit
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//
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// Created by Adlai Holler on 8/18/16.
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// Copyright © 2016 Facebook. All rights reserved.
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//
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#import <XCTest/XCTest.h>
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#import <OCMock/OCMock.h>
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@interface ASUICollectionViewTests : XCTestCase
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@end
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@implementation ASUICollectionViewTests
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/// Test normal item-affiliated supplementary node
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- (void)testNormalTwoIndexSupplementaryElement
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{
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[self _testSupplementaryNodeAtIndexPath:[NSIndexPath indexPathForItem:0 inSection:1] sectionCount:2 expectException:NO];
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}
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/// If your supp is indexPathForItem:inSection:, the section index must be in bounds
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- (void)testThatSupplementariesWithItemIndexesMustBeWithinNormalSections
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{
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[self _testSupplementaryNodeAtIndexPath:[NSIndexPath indexPathForItem:0 inSection:3] sectionCount:2 expectException:YES];
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}
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/// If your supp is indexPathWithIndex:, that's OK even if that section is out of bounds!
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- (void)testThatSupplementariesWithOneIndexAreOKOutOfSectionBounds
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{
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[self _testSupplementaryNodeAtIndexPath:[NSIndexPath indexPathWithIndex:3] sectionCount:2 expectException:NO];
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}
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- (void)_testSupplementaryNodeAtIndexPath:(NSIndexPath *)indexPath sectionCount:(NSInteger)sectionCount expectException:(BOOL)shouldFail
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{
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UICollectionViewLayoutAttributes *attr = [UICollectionViewLayoutAttributes layoutAttributesForSupplementaryViewOfKind:@"SuppKind" withIndexPath:indexPath];
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attr.frame = CGRectMake(0, 0, 20, 20);
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UICollectionViewLayout *layout = [[UICollectionViewLayout alloc] init];
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id layoutMock = [OCMockObject partialMockForObject:layout];
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[[[[layoutMock expect] ignoringNonObjectArgs] andReturn:@[ attr ]] layoutAttributesForElementsInRect:CGRectZero];
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UICollectionView *cv = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 0, 100, 100) collectionViewLayout:layoutMock];
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[cv registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:@"SuppKind" withReuseIdentifier:@"ReuseID"];
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id dataSource = [OCMockObject niceMockForProtocol:@protocol(UICollectionViewDataSource)];
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__block id view = nil;
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[[[dataSource expect] andDo:^(NSInvocation *invocation) {
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NSIndexPath *indexPath = nil;
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[invocation getArgument:&indexPath atIndex:4];
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view = [cv dequeueReusableSupplementaryViewOfKind:@"SuppKind" withReuseIdentifier:@"ReuseID" forIndexPath:indexPath];
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[invocation setReturnValue:&view];
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}] collectionView:cv viewForSupplementaryElementOfKind:@"SuppKind" atIndexPath:indexPath];
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[[[dataSource expect] andReturnValue:[NSNumber numberWithInteger:sectionCount]] numberOfSectionsInCollectionView:cv];
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cv.dataSource = dataSource;
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if (shouldFail) {
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XCTAssertThrowsSpecificNamed([cv layoutIfNeeded], NSException, NSInternalInconsistencyException);
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} else {
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[cv layoutIfNeeded];
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XCTAssertEqualObjects(attr, [cv layoutAttributesForSupplementaryElementOfKind:@"SuppKind" atIndexPath:indexPath]);
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XCTAssertEqual(view, [cv supplementaryViewForElementKind:@"SuppKind" atIndexPath:indexPath]);
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}
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[dataSource verify];
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[layoutMock verify];
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}
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@end
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