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| 1 | +// |
| 2 | +// ASLayoutSpecTests.m |
| 3 | +// AsyncDisplayKit |
| 4 | +// |
| 5 | +// Created by Michael Schneider on 1/27/17. |
| 6 | +// Copyright © 2017 Facebook. All rights reserved. |
| 7 | +// |
| 8 | + |
| 9 | +#import <XCTest/XCTest.h> |
| 10 | + |
| 11 | +#import <AsyncDisplayKit/AsyncDisplayKit.h> |
| 12 | +#import <AsyncDisplayKit/ASLayoutElementExtensibility.h> |
| 13 | + |
| 14 | +#pragma mark - ASDKExtendedLayoutSpec |
| 15 | + |
| 16 | +/* |
| 17 | + * Extend the ASDKExtendedLayoutElement |
| 18 | + * It adds a |
| 19 | + * - primitive / CGFloat (extendedWidth) |
| 20 | + * - struct / ASDimension (extendedDimension) |
| 21 | + * - primitive / ASStackLayoutDirection (extendedDirection) |
| 22 | + */ |
| 23 | +@protocol ASDKExtendedLayoutElement <NSObject> |
| 24 | +@property (assign, nonatomic) CGFloat extendedWidth; |
| 25 | +@property (assign, nonatomic) ASDimension extendedDimension; |
| 26 | +@property (copy, nonatomic) NSString *extendedName; |
| 27 | +@end |
| 28 | + |
| 29 | +/* |
| 30 | + * Let the ASLayoutElementStyle conform to the ASDKExtendedLayoutElement protocol and add properties implementation |
| 31 | + */ |
| 32 | +@interface ASLayoutElementStyle (ASDKExtendedLayoutElement) <ASDKExtendedLayoutElement> |
| 33 | +@end |
| 34 | + |
| 35 | +@implementation ASLayoutElementStyle (ASDKExtendedLayoutElement) |
| 36 | +ASDK_STYLE_PROP_PRIM(CGFloat, extendedWidth, setExtendedWidth, 0); |
| 37 | +ASDK_STYLE_PROP_STR(ASDimension, extendedDimension, setExtendedDimension, ASDimensionMake(ASDimensionUnitAuto, 0)); |
| 38 | +ASDK_STYLE_PROP_OBJ(NSString *, extendedName, setExtendedName); |
| 39 | +@end |
| 40 | + |
| 41 | +/* |
| 42 | + * As the ASLayoutableStyle conforms to the ASDKExtendedLayoutable protocol now, ASDKExtendedLayoutable properties |
| 43 | + * can be accessed in ASDKExtendedLayoutSpec |
| 44 | + */ |
| 45 | +@interface ASDKExtendedLayoutSpec : ASLayoutSpec |
| 46 | +@end |
| 47 | + |
| 48 | +@implementation ASDKExtendedLayoutSpec |
| 49 | + |
| 50 | +- (void)doSetSomeStyleValuesToChildren |
| 51 | +{ |
| 52 | + for ( id<ASLayoutElement> child in self. children) { |
| 53 | + child.style.extendedWidth = 100; |
| 54 | + child.style.extendedDimension = ASDimensionMake(100); |
| 55 | + child.style.extendedName = @"ASDK"; |
| 56 | + } |
| 57 | +} |
| 58 | + |
| 59 | +- (void)doUseSomeStyleValuesFromChildren |
| 60 | +{ |
| 61 | + for ( id<ASLayoutElement> child in self. children) { |
| 62 | + __unused CGFloat extendedWidth = child.style.extendedWidth; |
| 63 | + __unused ASDimension extendedDimension = child.style.extendedDimension; |
| 64 | + __unused NSString *extendedName = child.style.extendedName; |
| 65 | + } |
| 66 | +} |
| 67 | + |
| 68 | +@end |
| 69 | + |
| 70 | + |
| 71 | +#pragma mark - ASLayoutSpecTests |
| 72 | + |
| 73 | +@interface ASLayoutSpecTests : XCTestCase |
| 74 | + |
| 75 | +@end |
| 76 | + |
| 77 | +@implementation ASLayoutSpecTests |
| 78 | + |
| 79 | +- (void)testSetPrimitiveToExtendedStyle |
| 80 | +{ |
| 81 | + ASDisplayNode *node = [[ASDisplayNode alloc] init]; |
| 82 | + node.style.extendedWidth = 100; |
| 83 | + XCTAssert(node.style.extendedWidth == 100, @"Primitive value should be set on extended style"); |
| 84 | +} |
| 85 | + |
| 86 | +- (void)testSetStructToExtendedStyle |
| 87 | +{ |
| 88 | + ASDisplayNode *node = [[ASDisplayNode alloc] init]; |
| 89 | + node.style.extendedDimension = ASDimensionMake(100); |
| 90 | + XCTAssertTrue(ASDimensionEqualToDimension(node.style.extendedDimension, ASDimensionMake(100)), @"Struct should be set on extended style"); |
| 91 | +} |
| 92 | + |
| 93 | +- (void)testSetObjectToExtendedStyle |
| 94 | +{ |
| 95 | + NSString *extendedName = @"ASDK"; |
| 96 | + |
| 97 | + ASDisplayNode *node = [[ASDisplayNode alloc] init]; |
| 98 | + node.style.extendedName = extendedName; |
| 99 | + XCTAssertEqualObjects(node.style.extendedName, extendedName, @"Object should be set on extended style"); |
| 100 | +} |
| 101 | + |
| 102 | + |
| 103 | +- (void)testUseOfExtendedStyleProperties |
| 104 | +{ |
| 105 | + ASDKExtendedLayoutSpec *extendedLayoutSpec = [ASDKExtendedLayoutSpec new]; |
| 106 | + extendedLayoutSpec.children = @[[[ASDisplayNode alloc] init], [[ASDisplayNode alloc] init]]; |
| 107 | + XCTAssertNoThrow([extendedLayoutSpec doSetSomeStyleValuesToChildren]); |
| 108 | + XCTAssertNoThrow([extendedLayoutSpec doUseSomeStyleValuesFromChildren]); |
| 109 | +} |
| 110 | + |
| 111 | +@end |
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