Swiftgram/Tests/ASLayoutTestNode.h
Adlai Holler 0dc7002f0b Add unit tests for the layout engine (#424)
* Build testing platform & tests for the layout engine

* Add our license header to debugbreak.

* Remove thing

* Address review comments

* Beef up the logging

* Update -[ASLayout isEqual:]

* testLayoutTransitionWithAsyncMeasurement passes now

* Disable testASetNeedsLayoutInterferingWithTheCurrentTransition

* Fix build errors
2017-12-01 17:05:47 +00:00

43 lines
1.3 KiB
Objective-C

//
// ASLayoutTestNode.h
// Texture
//
// Copyright (c) 2017-present, Pinterest, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
#import <AsyncDisplayKit/AsyncDisplayKit.h>
#import <OCMock/OCMock.h>
@interface ASLayoutTestNode : ASDisplayNode
/**
* Mocking ASDisplayNodes directly isn't very safe because when you pump mock objects
* into the guts of the framework, bad things happen e.g. direct-ivar-access on mock
* objects will return garbage data.
*
* Instead we create a strict mock for each node, and forward a selected set of calls to it.
*/
@property (nonatomic, strong, readonly) id mock;
/**
* The size that this node will return in calculateLayoutThatFits (if it doesn't have a layoutSpecBlock).
*
* Changing this value will call -setNeedsLayout on the node.
*/
@property (nonatomic) CGSize testSize;
/**
* Generate a layout based on the frame of this node and its subtree.
*
* The root layout will be unpositioned. This is so that the returned layout can be directly
* compared to `calculatedLayout`
*/
- (ASLayout *)currentLayoutBasedOnFrames;
@end