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/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#import <XCTest/XCTest.h>
#import "ObjectiveChipmunk/ObjectiveChipmunk.h"
#import "chipmunk/chipmunk_private.h"
#define AssertRetainCount(obj, count) XCTAssertEqual([obj retainCount], (NSUInteger)count, @"")
@interface MemoryTest : XCTestCase {}
@end
@implementation MemoryTest
-(void)testBasic {
ChipmunkSpace *space = [[ChipmunkSpace alloc] init];
ChipmunkBody *body1 = [[ChipmunkBody alloc] initWithMass:1 andMoment:1];
ChipmunkBody *body2 = [[ChipmunkBody alloc] initWithMass:1 andMoment:1];
ChipmunkShape *shape1 = [[ChipmunkCircleShape alloc] initWithBody:body1 radius:1 offset:cpvzero];
ChipmunkShape *shape2 = [[ChipmunkCircleShape alloc] initWithBody:body2 radius:1 offset:cpvzero];
ChipmunkConstraint *joint1 = [[ChipmunkPivotJoint alloc] initWithBodyA:body1 bodyB:body2 pivot:cpvzero];
ChipmunkConstraint *joint2 = [[ChipmunkPivotJoint alloc] initWithBodyA:body1 bodyB:body2 pivot:cpvzero];
[space add:body1];
[space add:body2];
[space add:shape1];
[space add:shape2];
[space add:joint1];
[space add:joint2];
AssertRetainCount(body1, 5);
AssertRetainCount(body2, 5);
AssertRetainCount(shape1, 2);
AssertRetainCount(shape2, 2);
AssertRetainCount(joint1, 2);
AssertRetainCount(joint2, 2);
[space remove:shape1];
[space remove:joint1];
AssertRetainCount(body1, 5);
AssertRetainCount(body2, 5);
AssertRetainCount(shape1, 1);
AssertRetainCount(shape2, 2);
AssertRetainCount(joint1, 1);
AssertRetainCount(joint2, 2);
[space release];
AssertRetainCount(body1, 4);
AssertRetainCount(body2, 4);
AssertRetainCount(shape1, 1);
AssertRetainCount(shape2, 1);
AssertRetainCount(joint1, 1);
AssertRetainCount(joint2, 1);
[joint1 release];
[joint2 release];
AssertRetainCount(body1, 2);
AssertRetainCount(body2, 2);
[shape1 release];
[shape2 release];
AssertRetainCount(body1, 1);
AssertRetainCount(body2, 1);
[body1 release];
[body2 release];
}
-(void)testStaticBody {
ChipmunkSpace *space = [[ChipmunkSpace alloc] init];
ChipmunkBody *staticBody = space.staticBody;
AssertRetainCount(staticBody, 1);
ChipmunkShape *shape = [[ChipmunkCircleShape alloc] initWithBody:space.staticBody radius:1 offset:cpvzero];
AssertRetainCount(staticBody, 2);
[space add:shape];
AssertRetainCount(shape, 2);
AssertRetainCount(staticBody, 2);
[space release];
AssertRetainCount(shape, 1);
AssertRetainCount(staticBody, 1);
[shape release];
}
-(void)testSetters {
ChipmunkBody *body = [[ChipmunkBody alloc] initWithMass:1.0 andMoment:1.0];
ChipmunkShape *shape = [ChipmunkCircleShape circleWithBody:nil radius:1 offset:cpvzero];
shape.body = body;
AssertRetainCount(body, 2);
shape.body = body;
AssertRetainCount(body, 2);
shape.body = nil;
AssertRetainCount(body, 1);
// ChipmunkConstraint *joint = [ChipmunkPivotJoint pivotJointWithBodyA:nil bodyB:nil pivot:cpvzero];
// joint.bodyA = body; joint.bodyB = body;
// AssertRetainCount(body, 3);
//
// joint.bodyA = body; joint.bodyB = body;
// AssertRetainCount(body, 3);
//
// joint.bodyA = nil; joint.bodyB = nil;
// AssertRetainCount(body, 1);
}
-(void)testPostStepCallbacks {
ChipmunkSpace *space = [[ChipmunkSpace alloc] init];
NSObject *obj1 = [[NSObject alloc] init];
NSObject *obj2 = [[NSObject alloc] init];
// Lock the space to avoid triggering warnings.
cpSpaceLock(space.space);
// Registering the callback should retain the object twice
XCTAssertTrue([space addPostStepCallback:obj1 selector:@selector(isEqual:) key:obj1], @"");
AssertRetainCount(obj1, 3);
// Registering the same callback a second time should not add more retains
XCTAssertFalse([space addPostStepCallback:obj1 selector:@selector(isEqual:) key:obj1], @"");
AssertRetainCount(obj1, 3);
// A key can only be registered once to prevent double removals.
// Registering a second target with the same key is a no-op.
XCTAssertFalse([space addPostStepCallback:obj2 selector:@selector(isEqual:) key:obj1], @"");
AssertRetainCount(obj1, 3);
AssertRetainCount(obj2, 1);
XCTAssertTrue([space addPostStepCallback:obj1 selector:@selector(isEqual:) key:obj2], @"");
AssertRetainCount(obj1, 4);
AssertRetainCount(obj2, 2);
cpSpaceUnlock(space.space, FALSE);
// Stepping the space should release the callback handler and both objects
[space step:1];
AssertRetainCount(obj1, 1);
AssertRetainCount(obj2, 1);
[space release];
[obj1 release];
[obj2 release];
}
@end
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