单元测试核心数据 - 用代码134异常退出 [英] Unit Testing Core Data - exited abnormally with code 134

问题描述

我正在为核心数据应用设置单元测试。我在一个很简单的测试遇到一个奇怪的问题。我得到的错误是：

  /Developer/Tools/RunPlatformUnitTests.include:451:0测试台/平台/ iPhoneSimulator.platform / Developer / SDKs / iPhoneSimulator4.0.sdk / Developer / usr / bin / otest'退出异常与代码134（它可能已崩溃）。 
  

我的单元测试的标题是：

  #import< SenTestingKit / SenTestingKit.h> 
 #import< UIKit / UIKit.h> 
 #import< CoreData / CoreData.h> 
 #importUnit.h
 
 @interface UnitLogicTests：SenTestCase {
 NSManagedObjectContext * managedObjectContext; 
 NSPersistentStoreCoordinator * persistentStoreCoordinator; 
 NSManagedObjectModel * managedObjectModel; 
 NSPersistentStore * persistentStore; 
} 
 @end 
  

实现是：

  #importUnitLogicTests.h
 
 @implementation UnitLogicTests 
 
 #pragma mark安装和拆卸
  - （void）setUp {
 managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles：nil] retain]; 
 NSLog（@model：％@，managedObjectModel）; 
 persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel：managedObjectModel]; 
 persistentStore = [persistentStoreCoordinator addPersistentStoreWithType：NSInMemoryStoreType 
 configuration：nil 
 URL：nil 
 options：nil 
 error：NULL]; 
 managedObjectContext = [[NSManagedObjectContext alloc] init]; 
 [managedObjectContext setPersistentStoreCoordinator：persistentStoreCoordinator]; 
} 
 
  - （void）tearDown 
 {
 [managedObjectContext release]; 
 managedObjectContext = nil; 
 NSError * error = nil; 
 STAssertTrue（[persistentStoreCoordinator removePersistentStore：persistentStore error：& error]，
 @无法删除持久存储：％@，错误）; 
 persistentStore = nil; 
 [persistentStoreCoordinator release]; 
 persistentStoreCoordinator = nil; 
 [managedObjectModel release]; 
 managedObjectModel = nil; 
} 
 
 #pragma mark  -  
 #pragma mark测试用例
  - （void）testThatEnvironmentWorks 
 {
 STAssertNotNil（persistentStore，@无持久存储）; 
} 
 
 
  - （void）testNewUnitDefaults {
 Unit * newUnit = [NSEntityDescription insertNewObjectForEntityForName：@Unit
 inManagedObjectContext：managedObjectContext]; 
 STAssertEquals（newUnit.floorNumber，1，@新单位楼层号的默认值应为1）; 
 
} 
 
 @end 
  

省略 - （void）testNewUnitDefaults 测试，然后构建完成没有错误，所以在最后一个测试中的东西被抛出一个循环。

解决方案

/ div>

在您的测试用例附近放置一个@try .... catch块。

我想加载模型

  [NSManagedObjectModel mergedModelFromBundles：nil] 
  

没有按预期工作

使用您的代码初始化核心数据堆栈我有一个异常

  + entityForName：在此模型中找不到名为Unit的实体。 
  

将模型初始化更改为以下代码：

  //根据你的modeltest中的标识符设置Info.plist 
 
 NSString * path = [[NSBundle bundleWithIdentifier：@com.yourcompany。 ModelTest] 
 pathForResource：@CoreDataUnitTest_DataModel
 ofType：@mom]; 
 NSURL * modelURL = [NSURL URLWithString：path]; 
 managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL：modelURL]; 
 

单元测试OCUnit有时是有点棘手，因为只有很少的错误信息被暴露。

I am setting up unit testing for my core data app. I'm running into a strange problem in a pretty simple test. The error I'm getting is:

/Developer/Tools/RunPlatformUnitTests.include:451:0 Test rig '/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.0.sdk/Developer/usr/bin/otest' exited abnormally with code 134 (it may have crashed).

The header for my unit tests is:

#import <SenTestingKit/SenTestingKit.h>
#import <UIKit/UIKit.h>
#import <CoreData/CoreData.h>
#import "Unit.h"

@interface UnitLogicTests : SenTestCase {
    NSManagedObjectContext *managedObjectContext;
    NSPersistentStoreCoordinator *persistentStoreCoordinator;
    NSManagedObjectModel *managedObjectModel;
    NSPersistentStore *persistentStore;
}
@end

The implementation is:

#import "UnitLogicTests.h"

@implementation UnitLogicTests

#pragma mark Setup and Teardown
- (void)setUp {
    managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles: nil] retain];
    NSLog(@"model: %@", managedObjectModel);
    persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:managedObjectModel];
    persistentStore = [persistentStoreCoordinator addPersistentStoreWithType:NSInMemoryStoreType
                                                               configuration:nil
                                                                         URL:nil
                                                                     options:nil 
                                                                       error:NULL];
    managedObjectContext = [[NSManagedObjectContext alloc] init];
    [managedObjectContext setPersistentStoreCoordinator:persistentStoreCoordinator];
}

- (void)tearDown
{
    [managedObjectContext release];
    managedObjectContext = nil;
    NSError *error = nil;
    STAssertTrue([persistentStoreCoordinator removePersistentStore:persistentStore error:&error], 
                 @"couldn't remove persistent store: %@", error);
    persistentStore = nil;
    [persistentStoreCoordinator release];
    persistentStoreCoordinator = nil;
    [managedObjectModel release];
    managedObjectModel = nil;
}

#pragma mark -
#pragma mark Test Cases
- (void)testThatEnvironmentWorks
{
    STAssertNotNil(persistentStore, @"no persistent store");
}


- (void)testNewUnitDefaults {
    Unit *newUnit = [NSEntityDescription insertNewObjectForEntityForName:@"Unit" 
                                                  inManagedObjectContext:managedObjectContext];
    STAssertEquals(newUnit.floorNumber, 1, @"Default value for new Unit's floor number should be 1");

}

@end

If I omit the - (void)testNewUnitDefaults test, then the build completes without errors, so something in that last test is throwing it for a loop. I am new to this, so any assistance would be greatly appreciated!

Thanks.

解决方案

put a @try .... catch block around your testcase.

I think loading the model with

[NSManagedObjectModel mergedModelFromBundles: nil]

did not work as expected

Using your code for initialization of the core data stack I got an exception

+entityForName: could not locate an entity named 'Unit' in this model.

Changing the model initialization to the following code works fine:

    // set according to the identifier in your modeltest Info.plist

    NSString* path = [[NSBundle bundleWithIdentifier:@"com.yourcompany.ModelTest"] 
                                     pathForResource:@"CoreDataUnitTest_DataModel" 
                                              ofType:@"mom"];
    NSURL* modelURL = [NSURL URLWithString:path];
    managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];

Unit Tests with OCUnit sometimes are a bit tricky as only little information on errors is exposed.

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