mirror of
https://github.com/tappollo/IGListKit.git
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1d3e58b9fd
Summary: Rebase from #140: Create a flow layout for IGList that does not newline sections. Closes #3 - [x] Minimum inter-item spacing - [x] Minimum line spacing - [x] Constant item size with constant layout time - [x] Update layout on insert/delete/move - [x] Unit Test Closes https://github.com/Instagram/IGListKit/pull/225 Differential Revision: D4211469 Pulled By: rnystrom fbshipit-source-id: f4710dbf195701098ac50f94b6b2aa8c801b2a83
138 lines
6.3 KiB
Objective-C
138 lines
6.3 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <XCTest/XCTest.h>
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#import "IGListGridCollectionViewLayout.h"
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#import "IGTestCell.h"
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#import "IGTestSingleItemDataSource.h"
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#define genTestObject(k, v) [[IGTestObject alloc] initWithKey:k value:v]
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#define genExpectation [self expectationWithDescription:NSStringFromSelector(_cmd)]
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#define IGAssertEqualFrame(frame, x, y, w, h, ...) \
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do { \
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CGRect expected = CGRectMake(x, y, w, h); \
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XCTAssertEqual(CGRectGetMinX(expected), CGRectGetMinX(frame)); \
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XCTAssertEqual(CGRectGetMinY(expected), CGRectGetMinY(frame)); \
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XCTAssertEqual(CGRectGetWidth(expected), CGRectGetWidth(frame)); \
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XCTAssertEqual(CGRectGetHeight(expected), CGRectGetHeight(frame)); \
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} while(0)
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@interface IGListGridCollectionViewLayoutTests : XCTestCase
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@property (nonatomic, strong) IGListCollectionView *collectionView;
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@property (nonatomic, strong) IGListAdapter *adapter;
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@property (nonatomic, strong) IGListAdapterUpdater *updater;
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@property (nonatomic, strong) IGTestSingleItemDataSource *dataSource;
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@property (nonatomic, strong) UIWindow *window;
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@property (nonatomic, strong) IGListGridCollectionViewLayout *layout;
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@end
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@implementation IGListGridCollectionViewLayoutTests
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- (void)setUp {
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[super setUp];
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self.window = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
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self.layout = [[IGListGridCollectionViewLayout alloc] init];
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self.collectionView = [[IGListCollectionView alloc] initWithFrame:CGRectMake(0, 0, 100, 100) collectionViewLayout:self.layout];
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[self.window addSubview:self.collectionView];
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self.dataSource = [[IGTestSingleItemDataSource alloc] init];
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self.updater = [[IGListAdapterUpdater alloc] init];
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self.adapter = [[IGListAdapter alloc] initWithUpdater:self.updater viewController:nil workingRangeSize:2];
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}
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- (void)tearDown {
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[super tearDown];
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self.window = nil;
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self.collectionView = nil;
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self.adapter = nil;
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self.dataSource = nil;
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self.layout = nil;
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}
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- (void)setupWithObjects:(NSArray *)objects {
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self.dataSource.objects = objects;
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self.adapter.collectionView = self.collectionView;
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self.adapter.dataSource = self.dataSource;
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[self.collectionView layoutIfNeeded];
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}
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- (void)test_whenDisplayingCollectionView_thatHasOneItem {
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[self setupWithObjects:@[genTestObject(@1, @"Foo")]];
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CGSize contentSize = self.layout.collectionViewContentSize;
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NSIndexPath *indexPath = [NSIndexPath indexPathForItem:0 inSection:0];
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UICollectionViewLayoutAttributes *attributes = [self.layout layoutAttributesForItemAtIndexPath:indexPath];
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XCTAssertEqual(contentSize.width, 100.0f);
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XCTAssertEqual(contentSize.height, 44.0f);
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IGAssertEqualFrame(attributes.frame, 0, 0, 100, 44);
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}
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- (void)test_whenDisplayingCollectionView_thatLayoutHasItemSize {
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self.layout.itemSize = CGSizeMake(44.0f, 44.0f);
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[self setupWithObjects:@[genTestObject(@1, @"Foo")]];
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NSIndexPath *indexPath = [NSIndexPath indexPathForItem:0 inSection:0];
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UICollectionViewLayoutAttributes *attributes = [self.layout layoutAttributesForItemAtIndexPath:indexPath];
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IGAssertEqualFrame(attributes.frame, 0, 0, 44, 44);
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}
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- (void)test_whenDisplayingCollectionView_thatHasMultipleItems {
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self.layout.itemSize = CGSizeMake(44.0f, 44.0f);
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self.layout.minimumInteritemSpacing = 12.0f;
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self.layout.minimumLineSpacing = 6.0f;
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[self setupWithObjects:@[
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genTestObject(@1, @"Foo"),
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genTestObject(@2, @"Bar"),
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genTestObject(@3, @"Baz"),
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genTestObject(@4, @"Foo"),
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genTestObject(@5, @"Bar"),
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genTestObject(@6, @"Baz")
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]];
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CGSize contentSize = self.layout.collectionViewContentSize;
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NSIndexPath *indexPath0 = [NSIndexPath indexPathForItem:0 inSection:0];
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NSIndexPath *indexPath2 = [NSIndexPath indexPathForItem:0 inSection:2];
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NSIndexPath *indexPath3 = [NSIndexPath indexPathForItem:0 inSection:3];
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NSIndexPath *indexPath5 = [NSIndexPath indexPathForItem:0 inSection:5];
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UICollectionViewLayoutAttributes *attributes0 = [self.layout layoutAttributesForItemAtIndexPath:indexPath0];
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UICollectionViewLayoutAttributes *attributes2 = [self.layout layoutAttributesForItemAtIndexPath:indexPath2];
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UICollectionViewLayoutAttributes *attributes3 = [self.layout layoutAttributesForItemAtIndexPath:indexPath3];
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UICollectionViewLayoutAttributes *attributes5 = [self.layout layoutAttributesForItemAtIndexPath:indexPath5];
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XCTAssertEqual(contentSize.width, 100.0f);
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XCTAssertEqual(contentSize.height, 144.0f);
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IGAssertEqualFrame(attributes0.frame, 0, 0, 44, 44);
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IGAssertEqualFrame(attributes2.frame, 0, 50, 44, 44);
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IGAssertEqualFrame(attributes3.frame, 56, 50, 44, 44);
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IGAssertEqualFrame(attributes5.frame, 56, 100, 44, 44);
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}
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- (void)test_whenDisplayingCollectionView_thatUsesDelegateSize {
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self.layout.minimumLineSpacing = 6.0f;
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[self setupWithObjects:@[
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genTestObject(@1, @"Foo"),
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genTestObject(@2, @"Bar"),
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genTestObject(@3, @"Baz")
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]];
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CGSize contentSize = self.layout.collectionViewContentSize;
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NSIndexPath *indexPath0 = [NSIndexPath indexPathForItem:0 inSection:0];
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NSIndexPath *indexPath1 = [NSIndexPath indexPathForItem:0 inSection:1];
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NSIndexPath *indexPath2 = [NSIndexPath indexPathForItem:0 inSection:2];
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UICollectionViewLayoutAttributes *attributes0 = [self.layout layoutAttributesForItemAtIndexPath:indexPath0];
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UICollectionViewLayoutAttributes *attributes1 = [self.layout layoutAttributesForItemAtIndexPath:indexPath1];
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UICollectionViewLayoutAttributes *attributes2 = [self.layout layoutAttributesForItemAtIndexPath:indexPath2];
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XCTAssertEqual(contentSize.width, 100.0f);
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XCTAssertEqual(contentSize.height, 144.0f);
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IGAssertEqualFrame(attributes0.frame, 0, 0, 100, 44);
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IGAssertEqualFrame(attributes1.frame, 0, 50, 100, 44);
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IGAssertEqualFrame(attributes2.frame, 0, 100, 100, 44);
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}
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@end
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