當我們使用TestNG數據提供程序而不是Factory時，ITest是否有效

Question

我正在嘗試使用ITest接口從數據提供者那里獲取自定義名稱（用於Jenkins報告）。 我嘗試了如下示例程序，以了解TestNG在什么時候調用gettestname（）方法。

粘貼輸出和程序。

正如您在下面看到的那樣，輸出令人困惑，並且在某些地方測試名稱也以“ null”出現。 所以我的問題是Itest是否設計用於數據提供者？ 同樣，當我們使用parallel = true運行下面的dataprovider時，由於成員'testName'在線程之間共享並且僅運行一個類實例，因此它變得更加混亂。

我可以看到ITest如何與@factor一起使用，因為每次使用工廠時，每次運行的testmethod都會調用一個新的TestClass，所以在那里這不是問題。

輸出：

TestNGThreadingTest:31 - DataProvider running on Thread id = 1
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = null
TestNGThreadingTest:43 - Before Method Thread id = 1 TestName = test1
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test1
TestNGThreadingTest:37 - Run Method Thread id = 1 TestName = test1
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test1
TestNGThreadingTest:48 - After Method Thread id = 1 TestName = test1
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test1
TestNGThreadingTest:43 - Before Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:37 - Run Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:48 - After Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:43 - Before Method Thread id = 1 TestName = test3
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test3
TestNGThreadingTest:37 - Run Method Thread id = 1 TestName = test3
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test3
TestNGThreadingTest:48 - After Method Thread id = 1 TestName = test3
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test3
TestNGThreadingTest:43 - Before Method Thread id = 1 TestName = test4
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test4
TestNGThreadingTest:37 - Run Method Thread id = 1 TestName = test4
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test4
TestNGThreadingTest:48 - After Method Thread id = 1 TestName = test4
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test4
TestNGThreadingTest:43 - Before Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:37 - Run Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:48 - After Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test5
PASSED: test1("test1")
PASSED: test2("test2")
PASSED: test3("test3")
PASSED: test4("test4")
PASSED: test5("test5")

輸出[當parallel = true時]

TestNGThreadingTest:31 - DataProvider running on Thread id = 1
TestNGThreadingTest:53 - GetTestname Method Thread id = 9 TestName = null
TestNGThreadingTest:53 - GetTestname Method Thread id = 11 TestName = null
TestNGThreadingTest:53 - GetTestname Method Thread id = 10 TestName = null
TestNGThreadingTest:53 - GetTestname Method Thread id = 13 TestName = null
TestNGThreadingTest:53 - GetTestname Method Thread id = 12 TestName = null
TestNGThreadingTest:43 - Before Method Thread id = 11 TestName = test3
TestNGThreadingTest:43 - Before Method Thread id = 13 TestName = test5
TestNGThreadingTest:43 - Before Method Thread id = 9 TestName = test1
TestNGThreadingTest:43 - Before Method Thread id = 12 TestName = test4
TestNGThreadingTest:43 - Before Method Thread id = 10 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 12 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 9 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 13 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 11 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 10 TestName = test2
TestNGThreadingTest:37 - Run Method Thread id = 11 TestName = test3
TestNGThreadingTest:37 - Run Method Thread id = 12 TestName = test4
TestNGThreadingTest:37 - Run Method Thread id = 9 TestName = test1
TestNGThreadingTest:37 - Run Method Thread id = 10 TestName = test2
TestNGThreadingTest:37 - Run Method Thread id = 13 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 12 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 11 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 9 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 10 TestName = test2
TestNGThreadingTest:48 - After Method Thread id = 12 TestName = test4
TestNGThreadingTest:48 - After Method Thread id = 10 TestName = test2
TestNGThreadingTest:48 - After Method Thread id = 9 TestName = test1
TestNGThreadingTest:53 - GetTestname Method Thread id = 13 TestName = test2
TestNGThreadingTest:48 - After Method Thread id = 11 TestName = test3
TestNGThreadingTest:48 - After Method Thread id = 13 TestName = test5
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
TestNGThreadingTest:53 - GetTestname Method Thread id = 1 TestName = test2
PASSED: test2("test3")
PASSED: test2("test4")
PASSED: test2("test1")
PASSED: test2("test2")
PASSED: test2("test5")

碼：

public class TestNGThreadingTest implements ITest {

public String testName;

final static Logger logger = Logger.getLogger(TestNGThreadingTest.class);

@DataProvider(name="dp")
public Iterator<Object[]> getTests() {
    Collection<Object[]> tests = new ArrayList<Object[]>();

    tests.add(new Object[]{"test1"});
    tests.add(new Object[]{"test2"});
    tests.add(new Object[]{"test3"});
    tests.add(new Object[]{"test4"});
    tests.add(new Object[]{"test5"});

    logger.info("DataProvider running on Thread id = " + Thread.currentThread().getId());
    return tests.iterator();
}

@Test(dataProvider="dp")
public void run(String testName) {
    logger.info("Run Method Thread id = " + Thread.currentThread().getId() + " TestName = "+ testName );
}

@BeforeMethod
public void init(Object[] testArgs) {
    this.testName = (String) testArgs[0];
    logger.info("Before Method Thread id = " + Thread.currentThread().getId() + " TestName = " + testArgs[0]);
}

@AfterMethod
public void tearDown(Object[] testArgs) {
    logger.info("After Method Thread id = " + Thread.currentThread().getId() + " TestName = " + testArgs[0]);
}

@Override
public String getTestName() {
    logger.info("GetTestname Method Thread id = " + Thread.currentThread().getId() + " TestName = " + testName);
    return testName;
}

}

Answer 1

這是一個並發性問題（也許是TestNG？）。

通過ThreadLocal<String> testName = new ThreadLocal()復制String testName應該可以解決您的問題。

或者你可以使用一個@Factory掛@DataProvider太多，但@Factory 可能無法並行工作 。