在JUnit 3中，我可以像这样获得当前运行的测试的名称:
public class MyTest extends TestCase
{
public void testSomething()
{
System.out.println("Current test is " + getName());
...
}
}
它会打印“当前测试是testSomething”。
在JUnit 4中是否有任何开箱即用或简单的方法来做到这一点?
背景:显然，我不想只打印测试的名称。我希望加载存储在与测试同名的资源中的特定于测试的数据。你知道，约定比配置更重要。
当前回答
I'd suggest you decouple the test method name from your test data set. I would model a DataLoaderFactory class which loads/caches the sets of test data from your resources, and then in your test case cam call some interface method which returns a set of test data for the test case. Having the test data tied to the test method name assumes the test data can only be used once, where in most case i'd suggest that the same test data in uses in multiple tests to verify various aspects of your business logic.
其他回答
String testName = null;
StackTraceElement[] trace = Thread.currentThread().getStackTrace();
for (int i = trace.length - 1; i > 0; --i) {
StackTraceElement ste = trace[i];
try {
Class<?> cls = Class.forName(ste.getClassName());
Method method = cls.getDeclaredMethod(ste.getMethodName());
Test annotation = method.getAnnotation(Test.class);
if (annotation != null) {
testName = ste.getClassName() + "." + ste.getMethodName();
break;
}
} catch (ClassNotFoundException e) {
} catch (NoSuchMethodException e) {
} catch (SecurityException e) {
}
}
JUnit 4.7似乎使用TestName-Rule添加了这个特性。看起来这将为您提供方法名称:
import org.junit.Rule;
public class NameRuleTest {
@Rule public TestName name = new TestName();
@Test public void testA() {
assertEquals("testA", name.getMethodName());
}
@Test public void testB() {
assertEquals("testB", name.getMethodName());
}
}
我通常使用这样的方法:
/** Returns text with test method name
@param offset index of method on call stack to print, 1 for a caller of this method.
*/
static String getName(int offset)
{
Throwable t = new Throwable();
t.fillInStackTrace();
return
t.getStackTrace()[offset].getMethodName()+":"+t.getStackTrace()[offset].getLineNumber();
};
这正是Exception在打印堆栈跟踪时所使用的。 根据具体的上下文，您可能需要计算出正确的偏移值。它是粗糙的，原始的，坚韧的，没有使用任何花哨的现代期货。
JUnit 5及更高版本
在JUnit 5中，您可以注入TestInfo，这简化了对测试方法的测试元数据注入。例如:
@Test
@DisplayName("This is my test")
@Tag("It is my tag")
void test1(TestInfo testInfo) {
assertEquals("This is my test", testInfo.getDisplayName());
assertTrue(testInfo.getTags().contains("It is my tag"));
}
更多信息:JUnit 5用户指南，TestInfo javadoc。
您可以使用Slf4j和TestWatcher来实现这一点
private static Logger _log = LoggerFactory.getLogger(SampleTest.class.getName());
@Rule
public TestWatcher watchman = new TestWatcher() {
@Override
public void starting(final Description method) {
_log.info("being run..." + method.getMethodName());
}
};
