我想用單元測試來驗證我的控制器類中的所有IBoutlet
都正確地連接在NIB文件中。我想用OCMock做到這一點 - 即使我知道我可以簡單地斷言加載NIB後控制器變量不是nil
。這更多的是對這個過程如何工作的一般理解 - 就我所知,這也應該是有效的。檢查IBOutlet與OCMock的連接
The NIB OnOffSwitchCell
作爲其檔案負責人OnOffSwitchCellController
。 這是我的測試方法:
- (void) testIBOutletCellIsWiredToXib {
id mockController = [OCMockObject mockForClass:[OnOffSwitchCellController class]];
[[mockController expect] awakeAfterUsingCoder:OCMOCK_ANY];
[[mockController expect] setValue:OCMOCK_ANY forKey:@"cell"];
[[mockController expect] setValue:OCMOCK_ANY forKey:@"thelabel"];
[[mockController expect] setValue:OCMOCK_ANY forKey:@"theswitch"];
NSArray* nibContents = [guiBundle loadNibNamed:@"OnOffSwitchCell"
owner:mockController
options:nil];
assertThat(nibContents, isNot(nil));
assertThatInt([nibContents count], is(equalToInt(1)));
assertThat([nibContents objectAtIndex:0], is(instanceOf([OnOffSwitchCell class])));
[mockController verify];
}
guiBundle
存在並被證明是有效的一個NSBundle對象。
據我所知,loadNibNamed:owner:options:
將反序列化NIB中的對象,調用awakeAfterUsingCoder:
,然後通過調用setValue:forKey:
爲每個對象設置出口。
我放了三個斷言,以確保加載的NIB實際上包含正確的對象 - 當我放入實際控制器的實例時,這些通過確定。但是當我如上所示使用模擬時,它甚至沒有達到這個目標。相反,測試崩潰與此:
Test Case '-[OnOffSwitchCellControllerTestCase testIBOutletCellIsWiredToXib]' started. 2011-01-14 10:48:35.364 GTMTest[67797:903] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'OCMockObject[OnOffSwitchCellController]: unexpected method invoked: awakeAfterUsingCoder:<UINibDecoder: 0x500e800> expected: setValue:<OCMAnyConstraint: 0x4c718e0> forKey:@"cell" expected: setValue:<OCMAnyConstraint: 0x4c71ce0> forKey:@"thelabel" expected: setValue:<OCMAnyConstraint: 0x4c71ed0> forKey:@"theswitch"' *** Call stack at first throw: ( 0 CoreFoundation 0x00e3dbe9 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x00f925c2 objc_exception_throw + 47 2 CoreFoundation 0x00e3db21 -[NSException raise] + 17 3 GTMTest 0x0001a049 -[OCMockObject handleUnRecordedInvocation:] + 322 4 GTMTest 0x00019aca -[OCMockObject forwardInvocation:] + 77 5 CoreFoundation 0x00daf404 ___forwarding___ + 1124 6 CoreFoundation 0x00daef22 _CF_forwarding_prep_0 + 50 7 UIKit 0x0062394a UINibDecoderDecodeObjectForValue + 2438 8 UIKit 0x00624693 -[UINibDecoder decodeObjectForKey:] + 398 9 UIKit 0x0053cf43 -[UIRuntimeConnection initWithCoder:] + 212 10 UIKit 0x0053d4b1 -[UIRuntimeEventConnection initWithCoder:] + 64 11 UIKit 0x006239e4 UINibDecoderDecodeObjectForValue + 2592 12 UIKit 0x006232dc UINibDecoderDecodeObjectForValue + 792 13 UIKit 0x00624693 -[UINibDecoder decodeObjectForKey:] + 398 14 UIKit 0x0053c200 -[UINib instantiateWithOwner:options:] + 804 15 UIKit 0x0053e081 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168 16 GTMTest 0x000140dc -[OnOffSwitchCellControllerTestCase testIBOutletCellIsWiredToXib] + 503 17 GTMTest 0x000041f3 -[SenTestCase invokeTest] + 163 18 GTMTest 0x0000479a -[GTMTestCase invokeTest] + 146 19 GTMTest 0x00003e90 -[SenTestCase performTest] + 37 20 GTMTest 0x00002f3d -[GTMIPhoneUnitTestDelegate runTests] + 1413 21 GTMTest 0x000028fb -[GTMIPhoneUnitTestDelegate applicationDidFinishLaunching:] + 197 22 UIKit 0x00347253 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1252 23 UIKit 0x0034955e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439 24 UIKit 0x00348ef0 -[UIApplication _run] + 452 25 UIKit 0x0035542e UIApplicationMain + 1160 26 GTMTest 0x00003500 main + 104 27 GTMTest 0x0000273d start + 53 28 ??? 0x00000002 0x0 + 2 ) terminate called after throwing an instance of 'NSException'
所以它是抱怨調用awakeAfterUsingCoder:
爲意外,即使我清楚地預期了。
我也嘗試刪除該期望,並用一個不會報告多餘方法調用的很好的模擬替換模擬,但它仍然中止並報告setValue:forKey:
未被調用。
我在這裏錯過了什麼?
不幸的是,沒有什麼區別。 – 2011-03-04 13:16:40