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  <meta name="description" content="QA的同事说帮他们讲一下OC，我自己都是个搓鸟，还给别人讲，就当是玩笑拒绝了，那么多大牛都在，找我讲？后来又说让我讲，是认真的，那我想，反正他们也不会，忽悠一下他们还是OK的了，简单的写个Hello World还是不成问题的，于是就去讲了，讲到后来才明白他们想的最终需求是：单元测试。 &hellip;">
  

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      <h1 class="entry-title">XCTest单元测试</h1>
    
    
      <p class="meta">
        




<time class='entry-date' datetime='2015-01-29T22:14:13+08:00'><span class='date'><span class='date-month'>Jan</span> <span class='date-day'>29</span><span class='date-suffix'>th</span>, <span class='date-year'>2015</span></span> <span class='time'>10:14 pm</span></time>
        
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<div class="entry-content"><p>QA的同事说帮他们讲一下OC，我自己都是个搓鸟，还给别人讲，就当是玩笑拒绝了，那么多大牛都在，找我讲？后来又说让我讲，是认真的，那我想，反正他们也不会，忽悠一下他们还是OK的了，简单的写个Hello World还是不成问题的，于是就去讲了，讲到后来才明白他们想的最终需求是：单元测试。作为开发我从来没有了解过这一块，我说自己回去先写个Demo。于是上网各种搜索，还是有些收获的，昨天晚上到12:40，对UI和属性的测试有了点思路，完成一个简单的Demo，就当是单元测试的Hello World吧，今天上午又搞定了异步请求的单元测试，结合自己项目（方便写登录的请求）写了一个Demo，这也是列为今天todo list的第一个任务。现在记录一下。</p>

<p>1、新建一个测试的Target</p>

<p><img src="/images/blog/test-target.png" alt="Test Target" /></p>

<p>2、设置Search Paths
保持和项目的Target设置一致，不然在引用文件的时候，可能会提示有些文件找不到，比如：LoginManager.h:10:9: fatal error: &lsquo;biz/service/auth/auth_protocol.h&rsquo; file not found</p>

<p><img src="/images/blog/search-paths.png" alt="Search Paths" /></p>

<p>3、新建Test Class</p>

<p>见图一。</p>

<p>4、引入需要的文件开始测试
比如要写一个登录的单元测试，那要引入LoginManager.h之类的文件吧，我大概写一下，有些是项目的代码，不知道写在博文里面好不好。</p>

<pre><code>#import &lt;UIKit/UIKit.h&gt;
#import &lt;XCTest/XCTest.h&gt;
#import "LoginManager.h"
#import "LoginCallBack.h"

@interface MyTests : XCTestCase {
    XCTestExpectation *_expectation;
}

@end

@implementation MyTests

- (void)setUp {
    [super setUp];
    [self addListenEvents];
}

- (void)tearDown {
    [self removeListenEvents];
    [super tearDown];
}

#pragma mark - 通知
- (void)addListenEvents {
    extern NSString *kYIXINNotificationLoginResult;
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onGetLoginResult:) name:kYIXINNotificationLoginResult object:nil];
}

- (void)removeListenEvents {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

#pragma mark - Test Methods
- (void)testUserLogin {
    _expectation = [self expectationWithDescription:@"Login request"];

    NSString *username = @"userID";
    NSString *password = @"111111";

    [LoginManager sharedManager].currentLoginData.userName = username;
    [LoginManager sharedManager].currentLoginData.userPassword = [XXUtil encytePassword:password];
    [LoginManager sharedManager].currentLoginData.type = kAccountYid;

    [[LoginManager sharedManager] beginLogin];

    [self waitForExpectationsWithTimeout:5
                             handler:^(NSError *error) {
                                 // handler is called on _either_ success or failure
                                 if (error != nil) {
                                     XCTFail(@"timeout error: %@", error);
                                 }
                             }];
}


#pragma mark - LoginResultProtocol
- (void)onGetLoginResult:(NSNotification*)aNotification {
    extern NSString *kLoginStepKey;
    extern NSString *kLoginResultKey;

    NSDictionary *data  = aNotification.userInfo;
    NSInteger step      = [[data objectForKey:kLoginStepKey] intValue];
    NSInteger errorCode = [[data objectForKey:kLoginResultKey] intValue];

    if (step == kLoginStepLogin) {
        [_expectation fulfill];
        if (errorCode == kResSuccess) {
            XCTAssert(YES, @"Pass");
        } else {
            XCTAssert(NO, @"No Pass");
        }
    } else {
        NSLog(@ "login result: step is %@, code is %@",@(step), @(errorCode));
    }
}

@end
</code></pre>

<p>5、异步测试要点</p>

<pre><code>_expectation = [self expectationWithDescription:@"Login request”];
[_expectation fulfill];
XCTAssert(YES, @"Pass");
</code></pre>

<p>6、其他</p>

<p>其他的异步测试比如Block、Delegate的方式也都如此(采用XCTestExpectation)。</p>

<p>7、参考资料</p>

<ul>
<li><a href="http://objccn.io/issue-15-2/">http://objccn.io/issue-15-2/</a></li>
<li><a href="http://www.objc.io/issue-15/xctest.html">http://www.objc.io/issue-15/xctest.html</a></li>
<li><a href="http://www.bignerdranch.com/blog/asynchronous-testing-with-xcode-6/">http://www.bignerdranch.com/blog/asynchronous-testing-with-xcode-6/</a></li>
<li><a href="http://blog.dadabeatnik.com/2014/07/13/asynchronous-unit-testing-in-xcode-6/">http://blog.dadabeatnik.com/2014/07/13/asynchronous-unit-testing-in-xcode-6/</a></li>
<li><a href="http://www.pumpmybicep.com/2014/08/22/objective-c-http-stubbing-libraries/">http://www.pumpmybicep.com/2014/08/22/objective-c-http-stubbing-libraries/</a></li>
<li><a href="http://iosunittesting.com/asynchronous-tests-using-xctestexpectation/">http://iosunittesting.com/asynchronous-tests-using-xctestexpectation/</a></li>
<li><a href="http://www.pumpmybicep.com/2014/08/20/asynchronous-unit-testing-with-xctest/">http://www.pumpmybicep.com/2014/08/20/asynchronous-unit-testing-with-xctest/</a></li>
<li><a href="http://nshipster.com/xctestcase/">http://nshipster.com/xctestcase/</a></li>
<li><a href="http://ocmock.org">http://ocmock.org</a></li>
</ul>

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<span class="byline author vcard">Posted by <span class="fn">lingzuer</span></span>

      




<time class='entry-date' datetime='2015-01-29T22:14:13+08:00'><span class='date'><span class='date-month'>Jan</span> <span class='date-day'>29</span><span class='date-suffix'>th</span>, <span class='date-year'>2015</span></span> <span class='time'>10:14 pm</span></time>
      


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