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d6e5e27c39
* Remove set layout style size helper * Update API to set and get a CGSize / ASRelativeSize from an ASLayoutElementStyle - Expose ASRelativeSize type - Add new helper properties to set a size / relative size to ASLayoutElementStyle - Don't expose the size in ASLayoutElementStyle anymore and move into ASLayoutElementStylePrivate * Update examples * Update comments for size helpers
106 lines
4.1 KiB
Plaintext
106 lines
4.1 KiB
Plaintext
//
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// ASDisplayNodeLayoutTests.m
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// AsyncDisplayKit
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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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 "ASXCTExtensions.h"
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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#import "ASLayoutSpecSnapshotTestsHelper.h"
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#import "ASDisplayNode+FrameworkPrivate.h"
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@interface ASDisplayNodeLayoutTests : XCTestCase
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@end
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@implementation ASDisplayNodeLayoutTests
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- (void)testMeasureOnLayoutIfNotHappenedBefore
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{
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CGSize nodeSize = CGSizeMake(100, 100);
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ASDisplayNode *displayNode = [[ASDisplayNode alloc] init];
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displayNode.style.width = ASDimensionMake(100);
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displayNode.style.height = ASDimensionMake(100);
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// Use a button node in here as ASButtonNode uses layoutSpecThatFits:
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ASButtonNode *buttonNode = [ASButtonNode new];
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[displayNode addSubnode:buttonNode];
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displayNode.frame = {.size = nodeSize};
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buttonNode.frame = {.size = nodeSize};
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ASXCTAssertEqualSizes(displayNode.calculatedSize, CGSizeZero, @"Calculated size before measurement and layout should be 0");
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ASXCTAssertEqualSizes(buttonNode.calculatedSize, CGSizeZero, @"Calculated size before measurement and layout should be 0");
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// Trigger view creation and layout pass without a manual measure: call before so the automatic measurement
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// pass will trigger in the layout pass
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[displayNode.view layoutIfNeeded];
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ASXCTAssertEqualSizes(displayNode.calculatedSize, nodeSize, @"Automatic measurement pass should have happened in layout pass");
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ASXCTAssertEqualSizes(buttonNode.calculatedSize, nodeSize, @"Automatic measurement pass should have happened in layout pass");
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}
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#if DEBUG
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- (void)testNotAllowAddingSubnodesInLayoutSpecThatFits
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{
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ASDisplayNode *displayNode = [ASDisplayNode new];
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ASDisplayNode *someOtherNode = [ASDisplayNode new];
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displayNode.layoutSpecBlock = ^(ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
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[node addSubnode:someOtherNode];
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return [ASInsetLayoutSpec insetLayoutSpecWithInsets:UIEdgeInsetsZero child:someOtherNode];
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};
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XCTAssertThrows([displayNode layoutThatFits:ASSizeRangeMake(CGSizeZero, CGSizeMake(100, 100))], @"Should throw if subnode was added in layoutSpecThatFits:");
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}
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- (void)testNotAllowModifyingSubnodesInLayoutSpecThatFits
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{
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ASDisplayNode *displayNode = [ASDisplayNode new];
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ASDisplayNode *someOtherNode = [ASDisplayNode new];
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[displayNode addSubnode:someOtherNode];
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displayNode.layoutSpecBlock = ^(ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
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[someOtherNode removeFromSupernode];
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[node addSubnode:[ASDisplayNode new]];
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return [ASInsetLayoutSpec insetLayoutSpecWithInsets:UIEdgeInsetsZero child:someOtherNode];
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};
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XCTAssertThrows([displayNode layoutThatFits:ASSizeRangeMake(CGSizeZero, CGSizeMake(100, 100))], @"Should throw if subnodes where modified in layoutSpecThatFits:");
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}
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#endif
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- (void)testMeasureOnLayoutIfNotHappenedBeforeNoRemeasureForSameBounds
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{
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CGSize nodeSize = CGSizeMake(100, 100);
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ASDisplayNode *displayNode = [ASDisplayNode new];
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displayNode.style.width = ASDimensionMake(nodeSize.width);
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displayNode.style.height = ASDimensionMake(nodeSize.height);
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ASButtonNode *buttonNode = [ASButtonNode new];
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[displayNode addSubnode:buttonNode];
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__block size_t numberOfLayoutSpecThatFitsCalls = 0;
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displayNode.layoutSpecBlock = ^(ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
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__sync_fetch_and_add(&numberOfLayoutSpecThatFitsCalls, 1);
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return [ASInsetLayoutSpec insetLayoutSpecWithInsets:UIEdgeInsetsZero child:buttonNode];
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};
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displayNode.frame = {.size = nodeSize};
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// Trigger initial layout pass without a measurement pass before
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[displayNode.view layoutIfNeeded];
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XCTAssertEqual(numberOfLayoutSpecThatFitsCalls, 1, @"Should measure during layout if not measured");
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[displayNode layoutThatFits:ASSizeRangeMake(nodeSize, nodeSize)];
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XCTAssertEqual(numberOfLayoutSpecThatFitsCalls, 1, @"Should not remeasure with same bounds");
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}
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@end
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