TestNG 7.0+ 判断annotation.getRetryAnalyzerClass()，实现失败自动重跑

TestNG 7.0以上版本已经弃用了annotation.getRetryAnalyzer() 这个方法

// getRetryAnalyzer() is deprecated 

想实现测试用例失败自动重跑，需要在@Test注解中添加 retryAnalyzer = xxxRetryAnalyzer.class，才能实现失败用例自动重跑。

那么避免在所有@Test注解中指定retryAnalyzer 并实现 失败自动Retry呢？

直接上code：

先实现一个 RetryListener:

package listener;

import org.testng.IAnnotationTransformer;
import org.testng.IRetryAnalyzer;
import org.testng.annotations.ITestAnnotation;
import org.testng.internal.annotations.DisabledRetryAnalyzer;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

/**
 * Customize IAnnotationTransformer
 *
 * @author Vincent-Li
 */
public class DefaultRetryListener implements IAnnotationTransformer {
    @Override
    public void transform(ITestAnnotation annotation, Class testClass, Constructor testConstructor, Method testMethod) {
        Class<? extends IRetryAnalyzer> retry = annotation.getRetryAnalyzerClass();
        if (retry == DisabledRetryAnalyzer.class) {
            annotation.setRetryAnalyzer(DefaultRetryAnalyzer.class);
        }
    }
}

再实现一个 IRetryAnalyzer：

package listener;


import org.testng.IRetryAnalyzer;
import org.testng.ITestResult;
import org.testng.Reporter;
import utils.ConfUtils;
import utils.LeoLogger;

/**
 * Customize IRetryAnalyzer
 *
 * @author Vincent-Li
 */
public class DefaultRetryAnalyzer implements IRetryAnalyzer {
    private int retryCount = 1;
    private static final int maxRetryCount = 3; // 控制用例失败自动重试几次

    @Override
    synchronized public boolean retry(ITestResult result) {
        if (retryCount < maxRetryCount) {
            Reporter.setCurrentTestResult(result);
            retryCount++;
            return true;
        }
        return false;
    }
}

用于测试的用例FailedTests：

包含4个测试用例，第一个@Test 指定了retryAnalyzer  Class

package ui.testSample;

import listener.DefaultRetryAnalyzer;
import org.testng.annotations.Test;

/**
 * Some test failures to be included in the sample output.
 *
 * @author Vincent-Li
 */
@Test(groups = "should-fail")
public class FailedTests {

    @Test(retryAnalyzer = DefaultRetryAnalyzer.class)
    public void assertionFailure() {
        assert false : "This test failed.";
    }

    @Test
    public void assertionFailureWithMultilineMessage() {
        assert false : "This test failed.
Its message is on multiple lines.
     The last one has leading whitespace.";
    }

    @Test
    public void assertionFailureWithOutput() {
        assert false : "This test failed.";
    }

    @Test
    public void exceptionThrown() {
        throw new IllegalStateException("Test failed.", new UnsupportedOperationException()); // Nested cause.
    }
}

用于启动测试的Test.xml，未添加 RetryListener

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
<suite name="Suite" thread-count="1" parallel="instances"
       verbose="3">
    <test name="Test">
        <classes>
            <class name="ui.testSample.FailedTests"></class>
        </classes>
    </test>
</suite>

执行Test.xml by TestNG， 查看结果，发现只有第一个用例 实现了自动重跑。

为Test.xml 添加 RetryListener：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
<suite name="Suite" thread-count="1" parallel="instances"
       verbose="3">
    <listeners>
        <listener class-name="listener.DefaultRetryListener"/>
    </listeners>
    <test name="Test">
        <classes>
            <class name="ui.testSample.FailedTests"></class>
        </classes>
    </test>
</suite>

再次执行Test.xml，查看结果，发现只有4个用例 都实现了自动重跑，并且每个用例的执行次数为 DefaultRetryAnalyzer.maxRetryCount = 3

 如此，不在@Test中指定retryAnalyzer ，只需要在Test.xml添加RetryListener，也能实现失败自动重跑。