/core/externals/google-toolbox-for-mac/Foundation/GTMLightweightProxyTest.m

  1//
  2//  GTMLightweightProxyTest.m
  3//
  4//  Copyright 2006-2008 Google Inc.
  5//
  6//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  7//  use this file except in compliance with the License.  You may obtain a copy
  8//  of the License at
  9//
 10//  http://www.apache.org/licenses/LICENSE-2.0
 11//
 12//  Unless required by applicable law or agreed to in writing, software
 13//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 14//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 15//  License for the specific language governing permissions and limitations under
 16//  the License.
 17//
 18
 19#import "GTMSenTestCase.h"
 20#import "GTMLightweightProxy.h"
 21
 22@interface GTMLightweightProxy (GTMLightweightProxyTest)
 23- (id)init;
 24@end
 25
 26@interface GTMLightweightProxyTest : GTMTestCase
 27- (BOOL)returnYes;
 28@end
 29
 30// Declare a non-existent method that we can call without compiler warnings.
 31@interface GTMLightweightProxyTest (GTMLightweightProxyTestMadeUpMethodDeclaration)
 32- (void)someMadeUpMethod;
 33@end
 34
 35@implementation GTMLightweightProxyTest
 36
 37- (void)testInit {
 38  id proxy = [[[GTMLightweightProxy alloc]
 39               initWithRepresentedObject:self] autorelease];
 40  STAssertNotNil(proxy, nil);
 41
 42  proxy = [[[GTMLightweightProxy alloc] init] autorelease];
 43  STAssertNotNil(proxy, nil);
 44}
 45
 46- (void)testProxy {
 47  id proxy
 48    = [[[GTMLightweightProxy alloc] initWithRepresentedObject:self] autorelease];
 49  STAssertEqualObjects(self, [proxy representedObject],
 50                       @"Represented object setup failed");
 51
 52  // Check that it identifies itself as a proxy.
 53  STAssertTrue([proxy isProxy], @"Should identify as a proxy");
 54  // Check that it passes class requests on
 55  STAssertTrue([proxy isMemberOfClass:[self class]],
 56               @"Should pass class requests through");
 57
 58  // Check that it claims to respond to its selectors.
 59  STAssertTrue([proxy respondsToSelector:@selector(initWithRepresentedObject:)],
 60               @"Claims not to respond to initWithRepresentedObject:");
 61  STAssertTrue([proxy respondsToSelector:@selector(representedObject)],
 62               @"Claims not to respond to representedObject:");
 63  STAssertTrue([proxy respondsToSelector:@selector(setRepresentedObject:)],
 64               @"Claims not to respond to setRepresentedObject:");
 65  // Check that it responds to its represented object's selectors
 66  STAssertTrue([proxy respondsToSelector:@selector(returnYes)],
 67               @"Claims not to respond to returnYes");
 68  // ... but not to made up selectors.
 69#if !(__IPHONE_OS_VERSION_MIN_REQUIRED == __IPHONE_3_2 || __IPHONE_OS_VERSION_MIN_REQUIRED == __IPHONE_4_0)
 70  // Exceptions thrown by - (void)doesNotRecognizeSelector:(SEL)aSelector
 71  // does not get caught on iOS 3.2 and greater.
 72  // http://openradar.appspot.com/radar?id=420401
 73  STAssertThrows([proxy someMadeUpMethod],
 74                 @"Calling a bogus method should throw");
 75#endif
 76
 77  // Check that callthrough works.
 78  STAssertTrue([proxy returnYes],
 79               @"Calling through to the represented object failed");
 80
 81  // Check that nilling out the represented object works.
 82  [proxy setRepresentedObject:nil];
 83  STAssertTrue([proxy respondsToSelector:@selector(setRepresentedObject:)],
 84               @"Claims not to respond to setRepresentedObject: after nilling"
 85               @" out represented object");
 86  STAssertFalse([proxy respondsToSelector:@selector(returnYes)],
 87                @"Claims to respond to returnYes after nilling out represented"
 88                @" object");
 89  // Calling through once the represented object is nil should fail silently
 90  STAssertNoThrow([proxy returnYes],
 91                  @"Calling through without a represented object should fail"
 92                  @" silently");
 93
 94  // ... even when they are made up.
 95#if !(__IPHONE_OS_VERSION_MIN_REQUIRED == __IPHONE_3_2 || __IPHONE_OS_VERSION_MIN_REQUIRED == __IPHONE_4_0)
 96  // Exceptions thrown by - (void)doesNotRecognizeSelector:(SEL)aSelector
 97  // does not get caught on iOS 3.2 and greater.
 98  // http://openradar.appspot.com/radar?id=420401
 99
100  STAssertNoThrow([proxy someMadeUpMethod],
101                  @"Calling a bogus method on a nilled proxy should not throw");
102#endif
103
104}
105
106// Simple method to test calling through the proxy.
107- (BOOL)returnYes {
108  return YES;
109}
110
111@end