Java 无法编写简单JUnit测试启动器

我的主要问题是这门课：

import java.util.Arrays;
import java.util.List;

public class TestRunner{

   public void runTests(List<String> testClassNames) throws Exception {
       for(String test: testClassNames){
           Class<?> aClass = Class.forName(test);
           System.out.println(Arrays.toString(aClass.getMethods()));
       }
   }

   public String getResult() {
       return null;
   }
}

示例TestS1类：

public class ExampleTests1 {

    @MyTest
    public void test1() {
    }

    @MyTest
    public void test2() {
        throw new RuntimeException();
    }

}

TestRunner类的测试：

@Test
   public void runsTestsFromDecoupledFiles() throws Exception {

       List<String> testClassNames = List.of(
               "reflection.tester.ExampleTests1");

       TestRunner testRunner = new TestRunner();

       testRunner.runTests(testClassNames);

       String result = testRunner.getResult();

       assertThat(result, containsString("test1() - OK"));
       assertThat(result, containsString("test2() - FAILED"));
}

@测试
public void runsTestsFromDecoupledFiles（）引发异常{
List testClassNames=List.of(
“reflection.tester.ExampleTests1”）；
TestRunner TestRunner=新的TestRunner（）；
runTests（testClassNames）；
String result=testRunner.getResult（）；
断言（结果，包含字符串（“test1（）-OK”）；
断言（结果，包含字符串（“test2（）-FAILED”）；
}

@Test
   public void runsTestsFromDecoupledFiles() throws Exception {

       List<String> testClassNames = List.of(
               "reflection.tester.ExampleTests1");

       TestRunner testRunner = new TestRunner();

       testRunner.runTests(testClassNames);

       String result = testRunner.getResult();

       assertThat(result, containsString("test1() - OK"));
       assertThat(result, containsString("test2() - FAILED"));
}