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bccde6cf0f
* Add unit tests for ASScrollNode * Make sure ASScrollNode's size is clamped against its size range * Invalidate ASScrollNode's calculated layout if its scrollable directions changed * Update comment * Update CHANGELOG * Address Adlai's comments
140 lines
4.6 KiB
Objective-C
140 lines
4.6 KiB
Objective-C
//
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// ASScrollNodeTests.m
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// Texture
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//
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// Copyright (c) 2017-present, Pinterest, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <UIKit/UIKit.h>
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#import <XCTest/XCTest.h>
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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#import "ASXCTExtensions.h"
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@interface ASScrollNodeTests : XCTestCase
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@property (nonatomic) ASScrollNode *scrollNode;
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@property (nonatomic) ASDisplayNode *subnode;
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@end
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@implementation ASScrollNodeTests
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- (void)setUp
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{
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ASDisplayNode *subnode = [[ASDisplayNode alloc] init];
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self.subnode = subnode;
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self.scrollNode = [[ASScrollNode alloc] init];
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self.scrollNode.scrollableDirections = ASScrollDirectionVerticalDirections;
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self.scrollNode.automaticallyManagesContentSize = YES;
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self.scrollNode.automaticallyManagesSubnodes = YES;
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self.scrollNode.layoutSpecBlock = ^ASLayoutSpec * _Nonnull(__kindof ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
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return [[ASWrapperLayoutSpec alloc] initWithLayoutElement:subnode];
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};
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[self.scrollNode view];
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}
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- (void)testSubnodeLayoutCalculatedWithUnconstrainedMaxSizeInScrollableDirection
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{
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CGSize parentSize = CGSizeMake(100, 100);
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ASSizeRange sizeRange = ASSizeRangeMake(parentSize);
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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ASSizeRange subnodeSizeRange = sizeRange;
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subnodeSizeRange.max.height = CGFLOAT_MAX;
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XCTAssertEqual(self.scrollNode.scrollableDirections, ASScrollDirectionVerticalDirections);
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ASXCTAssertEqualSizeRanges(self.subnode.constrainedSizeForCalculatedLayout, subnodeSizeRange);
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// Same test for horizontal scrollable directions
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self.scrollNode.scrollableDirections = ASScrollDirectionHorizontalDirections;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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subnodeSizeRange = sizeRange;
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subnodeSizeRange.max.width = CGFLOAT_MAX;
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ASXCTAssertEqualSizeRanges(self.subnode.constrainedSizeForCalculatedLayout, subnodeSizeRange);
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}
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- (void)testAutomaticallyManagesContentSizeUnderflow
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{
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CGSize subnodeSize = CGSizeMake(100, 100);
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CGSize parentSize = CGSizeMake(100, 200);
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ASSizeRange sizeRange = ASSizeRangeUnconstrained;
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self.subnode.style.preferredSize = subnodeSize;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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[self.scrollNode layout];
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ASXCTAssertEqualSizes(self.scrollNode.calculatedSize, parentSize);
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ASXCTAssertEqualSizes(self.scrollNode.view.contentSize, subnodeSize);
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}
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- (void)testAutomaticallyManagesContentSizeOverflow
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{
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CGSize subnodeSize = CGSizeMake(100, 500);
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CGSize parentSize = CGSizeMake(100, 200);
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ASSizeRange sizeRange = ASSizeRangeUnconstrained;
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self.subnode.style.preferredSize = subnodeSize;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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[self.scrollNode layout];
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ASXCTAssertEqualSizes(self.scrollNode.calculatedSize, parentSize);
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ASXCTAssertEqualSizes(self.scrollNode.view.contentSize, subnodeSize);
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}
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- (void)testAutomaticallyManagesContentSizeWithSizeRangeSmallerThanParentSize
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{
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CGSize subnodeSize = CGSizeMake(100, 100);
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CGSize parentSize = CGSizeMake(100, 500);
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ASSizeRange sizeRange = ASSizeRangeMake(CGSizeMake(100, 100), CGSizeMake(100, 200));
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self.subnode.style.preferredSize = subnodeSize;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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[self.scrollNode layout];
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ASXCTAssertEqualSizes(self.scrollNode.calculatedSize, sizeRange.max);
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ASXCTAssertEqualSizes(self.scrollNode.view.contentSize, subnodeSize);
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}
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- (void)testAutomaticallyManagesContentSizeWithSizeRangeBiggerThanParentSize
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{
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CGSize subnodeSize = CGSizeMake(100, 200);
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CGSize parentSize = CGSizeMake(100, 100);
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ASSizeRange sizeRange = ASSizeRangeMake(CGSizeMake(100, 150));
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self.subnode.style.preferredSize = subnodeSize;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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[self.scrollNode layout];
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ASXCTAssertEqualSizes(self.scrollNode.calculatedSize, sizeRange.min);
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ASXCTAssertEqualSizes(self.scrollNode.view.contentSize, subnodeSize);
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}
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- (void)testAutomaticallyManagesContentSizeWithInvalidCalculatedSizeForLayout
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{
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CGSize subnodeSize = CGSizeMake(100, 200);
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CGSize parentSize = CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX);
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ASSizeRange sizeRange = ASSizeRangeUnconstrained;
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self.subnode.style.preferredSize = subnodeSize;
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[self.scrollNode layoutThatFits:sizeRange parentSize:parentSize];
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[self.scrollNode layout];
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ASXCTAssertEqualSizes(self.scrollNode.calculatedSize, subnodeSize);
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ASXCTAssertEqualSizes(self.scrollNode.view.contentSize, subnodeSize);
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}
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@end
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