Swiftgram/Tests/ASCALayerTests.mm
Adlai Holler d0ba092a77
Convert the codebase to Objective-C++ (#1206)
* Convert the codebase to Objective-C++ throughout. One language is better than two.

* Put it back

* Fix linker

* Point explicitly to updated Weaver to unblock build

* Revert "Point explicitly to updated Weaver to unblock build"

This reverts commit fdc25296e8794d4e6e56c35f5fe6da2be3f71dbc.

* Revert "Fix linker"

This reverts commit 7be25f91519b8497ef42de79f115bcfbdb965c39.

* Add in the frameworks

* no message

* Address spec lint warnings

* Fix tvos build

* Put that back

* Address Michael's review

* Add comment to kick CI
2018-11-02 12:04:14 -07:00

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//
// ASCALayerTests.mm
// Texture
//
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#import <XCTest/XCTest.h>
#import <OCMock/OCMock.h>
/**
* Tests that confirm what we know about Core Animation behavior.
*
* These tests are not run during the normal test action. You can run them yourself
* to investigate and confirm CA behavior.
*/
@interface ASCALayerTests : XCTestCase
@end
#define DeclareLayerAndSublayer() \
CALayer *realSublayer = [CALayer layer]; \
id layer = [OCMockObject partialMockForObject:[CALayer layer]]; \
id sublayer = [OCMockObject partialMockForObject:realSublayer]; \
[layer addSublayer:realSublayer];
@implementation ASCALayerTests
- (void)testThatLayerBeginsWithCleanLayout
{
XCTAssertFalse([CALayer layer].needsLayout);
}
- (void)testThatAddingSublayersDirtysLayout
{
CALayer *layer = [CALayer layer];
[layer addSublayer:[CALayer layer]];
XCTAssertTrue([layer needsLayout]);
}
- (void)testThatRemovingSublayersDirtysLayout
{
DeclareLayerAndSublayer();
[layer layoutIfNeeded];
XCTAssertFalse([layer needsLayout]);
[sublayer removeFromSuperlayer];
XCTAssertTrue([layer needsLayout]);
}
- (void)testDirtySublayerLayoutDoesntDirtySuperlayer
{
DeclareLayerAndSublayer();
[layer layoutIfNeeded];
// Dirtying sublayer doesn't dirty superlayer.
[sublayer setNeedsLayout];
XCTAssertTrue([sublayer needsLayout]);
XCTAssertFalse([layer needsLayout]);
[[[sublayer expect] andForwardToRealObject] layoutSublayers];
// NOTE: We specifically don't expect layer to get -layoutSublayers
[sublayer layoutIfNeeded];
[sublayer verify];
[layer verify];
}
- (void)testDirtySuperlayerLayoutDoesntDirtySublayerLayout
{
DeclareLayerAndSublayer();
[layer layoutIfNeeded];
// Dirtying superlayer doesn't dirty sublayer.
[layer setNeedsLayout];
XCTAssertTrue([layer needsLayout]);
XCTAssertFalse([sublayer needsLayout]);
[[[layer expect] andForwardToRealObject] layoutSublayers];
// NOTE: We specifically don't expect sublayer to get -layoutSublayers
[layer layoutIfNeeded];
[sublayer verify];
[layer verify];
}
- (void)testDirtyHierarchyIsLaidOutTopDown
{
DeclareLayerAndSublayer();
[sublayer setNeedsLayout];
XCTAssertTrue([layer needsLayout]);
XCTAssertTrue([sublayer needsLayout]);
__block BOOL superlayerLaidOut = NO;
[[[[layer expect] andDo:^(NSInvocation *i) {
superlayerLaidOut = YES;
}] andForwardToRealObject] layoutSublayers];
[[[[sublayer expect] andDo:^(NSInvocation *i) {
XCTAssertTrue(superlayerLaidOut);
}] andForwardToRealObject] layoutSublayers];
[layer layoutIfNeeded];
[sublayer verify];
[layer verify];
}
@end