将JUnit结果打印到文件

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

import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public class FileTestListener extends RunListener {
    private PrintWriter writer;

    @Override
    public void testRunStarted(Description description) throws Exception {
        writer = new PrintWriter(new FileWriter("test_results.txt"));
    }

    @Override
    public void testRunFinished(Result result) throws Exception {
        writer.close();
    }

    @Override
    public void testStarted(Description description) throws Exception {
        writer.println("Test started: " + description.getMethodName());
    }

    @Override
    public void testFinished(Description description) throws Exception {
        writer.println("Test finished: " + description.getMethodName());
    }

    @Override
    public void testFailure(Failure failure) throws Exception {
        writer.println("Test failed: " + failure.getDescription().getMethodName());
        writer.println("Failure message: " + failure.getMessage());
    }
}

import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class MyTest {
    @Test
    public void testSomething() {
        // 测试逻辑
    }
}