java - 在 JUnit 中打印测试结果

Question

目前我正在使测试用例重复 2 次，那么如何将结果打印为 2 个单独的结果。

我尝试使用内置函数来创建文本，但是，它现在显示“成功”或“失败”。

目前我有这个代码:

public class UnitTestRunner {
    static JUnitCore junitCore;
    static Class<?> testClasses;

    public static void main(String[] args) {
        System.out.println("Running Junit Test Suite.");
        Result result = JUnitCore.runClasses(TestSuite.class);
        for (Failure failure : result.getFailures()) {
            System.out.println(failure.toString());
        }
        System.out.println("Successful: " + result.wasSuccessful() +
            " ran " + result.getRunCount() + " tests");
    }
}

这段代码工作正常，但我不知道如何将其实现到 JUnit 中。

有人可以帮忙展示如何将此代码实现到 JUnit 测试用例中吗？

Answer 1

这个答案会有点长。对于自定义输出，您必须添加 RunListener您可以使用以下示例实现来实现相同目的。

public class UnitTestRunner {
    static JUnitCore junitCore;
    static Class<?> testClasses;

    public static void main(String[] args) {
        System.out.println("Running Junit Test Suite.");
        junitCore = new JUnitCore();
        junitCore.addListener(new CustomExecutionListener());

        Result result = junitCore.run(TestSuite.class);
        for (Failure failure : result.getFailures()) {
            System.out.println(failure.toString());
        }
        System.out.println("Successful: " + result.wasSuccessful() + " ran " + result.getRunCount() + " tests");
    }
}

RunListener 的实现如下

import org.junit.runner.Description;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;

public class CustomExecutionListener extends RunListener {

    public void testRunStarted(Description description) throws Exception {
        System.out.println("Number of tests to execute: " + description.testCount());
    }

    public void testRunFinished(Result result) throws Exception {
        System.out.println("Number of tests executed: " + result.getRunCount());
    }

    public void testStarted(Description description) throws Exception {
        System.out.println("Starting: " + description.getMethodName());
    }

    public void testFinished(Description description) throws Exception {
        System.out.println("Finished: " + description.getMethodName());
    }

    public void testFailure(Failure failure) throws Exception {
        System.out.println("Failed: " + failure.getDescription().getMethodName());
    }

    public void testAssumptionFailure(Failure failure) {
        System.out.println("Failed: " + failure.getDescription().getMethodName());
    }

    public void testIgnored(Description description) throws Exception {
        System.out.println("Ignored: " + description.getMethodName());
    }
}

通过覆盖 RunListener 中的方法，您可以格式化输出。