Swiftgram/AsyncDisplayKitTests/ASCollectionViewFlowLayoutInspectorTests.m
Rahul Malik 6c240a2fce ASPagerNode's api was not updated while addressing comments on the initial
ASCellNode background allocation PR. This change fixes that issue.
2016-02-05 15:09:08 -08:00

374 lines
19 KiB
Objective-C

/* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <XCTest/XCTest.h>
#import <UIKit/UIKit.h>
#import "ASCollectionView.h"
#import "ASCollectionViewFlowLayoutInspector.h"
/**
* Test Data Source
*/
@interface InspectorTestDataSource : NSObject <ASCollectionViewDataSource>
@end
@implementation InspectorTestDataSource
- (ASCellNode *)collectionView:(ASCollectionView *)collectionView nodeForItemAtIndexPath:(NSIndexPath *)indexPath
{
return [[ASCellNode alloc] init];
}
- (ASCellNodeBlock)collectionView:(ASCollectionView *)collectionView nodeBlockForItemAtIndexPath:(NSIndexPath *)indexPath
{
return ^{ return [[ASCellNode alloc] init]; };
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return 0;
}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 2;
}
@end
@interface ASCollectionViewFlowLayoutInspectorTests : XCTestCase
@end
/**
* Test Delegate for Header Reference Size Implementation
*/
@interface HeaderReferenceSizeTestDelegate : NSObject <ASCollectionViewDelegateFlowLayout>
@end
@implementation HeaderReferenceSizeTestDelegate
- (CGSize)collectionView:(ASCollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
return CGSizeMake(125.0, 125.0);
}
@end
/**
* Test Delegate for Footer Reference Size Implementation
*/
@interface FooterReferenceSizeTestDelegate : NSObject <ASCollectionViewDelegateFlowLayout>
@end
@implementation FooterReferenceSizeTestDelegate
- (CGSize)collectionView:(ASCollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
return CGSizeMake(125.0, 125.0);
}
@end
@implementation ASCollectionViewFlowLayoutInspectorTests
- (void)setUp {
[super setUp];
// Put setup code here. This method is called before the invocation of each test method in the class.
}
- (void)tearDown {
// Put teardown code here. This method is called after the invocation of each test method in the class.
[super tearDown];
}
#pragma mark - #collectionView:constrainedSizeForSupplementaryNodeOfKind:atIndexPath:
// Vertical
// Delegate implementation
- (void)testThatItReturnsAVerticalConstrainedSizeFromTheHeaderDelegateImplementation
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionVertical;
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(collectionView.bounds.size.width, 125.0));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the values returned in the delegate implementation");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsAVerticalConstrainedSizeFromTheFooterDelegateImplementation
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
FooterReferenceSizeTestDelegate *delegate = [[FooterReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionVertical;
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionFooter atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(collectionView.bounds.size.width, 125.0));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the values returned in the delegate implementation");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
// Size implementation
- (void)testThatItReturnsAVerticalConstrainedSizeFromTheHeaderProperty
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionVertical;
layout.headerReferenceSize = CGSizeMake(125.0, 125.0);
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(collectionView.bounds.size.width, 125.0));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the size set on the layout");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsAVerticalConstrainedSizeFromTheFooterProperty
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionVertical;
layout.footerReferenceSize = CGSizeMake(125.0, 125.0);
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionFooter atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(collectionView.bounds.size.width, 125.0));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the size set on the layout");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
// Horizontal
- (void)testThatItReturnsAHorizontalConstrainedSizeFromTheHeaderDelegateImplementation
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(125.0, collectionView.bounds.size.height));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the values returned in the delegate implementation");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsAHorizontalConstrainedSizeFromTheFooterDelegateImplementation
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
FooterReferenceSizeTestDelegate *delegate = [[FooterReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionFooter atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(125.0, collectionView.bounds.size.height));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the values returned in the delegate implementation");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
// Size implementation
- (void)testThatItReturnsAHorizontalConstrainedSizeFromTheHeaderProperty
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
layout.headerReferenceSize = CGSizeMake(125.0, 125.0);
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(125.0, collectionView.bounds.size.width));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the size set on the layout");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsAHorizontalConstrainedSizeFromTheFooterProperty
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
layout.footerReferenceSize = CGSizeMake(125.0, 125.0);
CGRect rect = CGRectMake(0, 0, 100.0, 100.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:rect collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionFooter atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeMake(125.0, collectionView.bounds.size.height));
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a size constrained by the size set on the layout");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsZeroSizeWhenNoReferenceSizeIsImplemented
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
ASSizeRange size = [inspector collectionView:collectionView constrainedSizeForSupplementaryNodeOfKind:UICollectionElementKindSectionFooter atIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]];
ASSizeRange sizeCompare = ASSizeRangeMake(CGSizeZero, CGSizeZero);
XCTAssert(CGSizeEqualToSize(size.min, sizeCompare.min) && CGSizeEqualToSize(size.max, sizeCompare.max), @"should have a zero size");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
#pragma mark - #collectionView:numberOfSectionsForSupplementaryNodeOfKind:
- (void)testThatItRespondsWithTheDefaultNumberOfSections
{
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
NSUInteger sections = [inspector collectionView:collectionView numberOfSectionsForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader];
XCTAssert(sections == 1, @"should return 1 by default");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItProvidesTheNumberOfSectionsInTheDataSource
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
NSUInteger sections = [inspector collectionView:collectionView numberOfSectionsForSupplementaryNodeOfKind:UICollectionElementKindSectionHeader];
XCTAssert(sections == 2, @"should return 2");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
#pragma mark - #collectionView:supplementaryNodesOfKind:inSection:
- (void)testThatItReturnsOneWhenAValidSizeIsImplementedOnTheDelegate
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
NSUInteger count = [inspector collectionView:collectionView supplementaryNodesOfKind:UICollectionElementKindSectionHeader inSection:0];
XCTAssert(count == 1, @"should have a header supplementary view");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsOneWhenAValidSizeIsImplementedOnTheLayout
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.footerReferenceSize = CGSizeMake(125.0, 125.0);
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
NSUInteger count = [inspector collectionView:collectionView supplementaryNodesOfKind:UICollectionElementKindSectionFooter inSection:0];
XCTAssert(count == 1, @"should have a footer supplementary view");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
- (void)testThatItReturnsNoneWhenNoReferenceSizeIsImplemented
{
InspectorTestDataSource *dataSource = [[InspectorTestDataSource alloc] init];
HeaderReferenceSizeTestDelegate *delegate = [[HeaderReferenceSizeTestDelegate alloc] init];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
ASCollectionView *collectionView = [[ASCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
collectionView.asyncDataSource = dataSource;
collectionView.asyncDelegate = delegate;
ASCollectionViewFlowLayoutInspector *inspector = [[ASCollectionViewFlowLayoutInspector alloc] initWithCollectionView:collectionView flowLayout:layout];
NSUInteger count = [inspector collectionView:collectionView supplementaryNodesOfKind:UICollectionElementKindSectionFooter inSection:0];
XCTAssert(count == 0, @"should not have a footer supplementary view");
collectionView.asyncDataSource = nil;
collectionView.asyncDelegate = nil;
}
@end