我正在尝试使用编程方式运行一些参数化的单元测试JUnitCore
。我的代码在没有参数化测试的情况下有效,但在测试失败时会失败。一个最小的例子:
Main.java
:
public class Main {
public static void main(final String args[]) {
final Request request = Request.classes(TheTest.class);
final JUnitCore core = new JUnitCore();
final Result result = core.run(request);
System.out.println("A total of " + result.getRunCount() + " tests were executed.");
System.out.println("A total of " + result.getFailureCount() + " failed.");
for (Failure f : result.getFailures()) {
System.err.println(f.getMessage());
System.err.println(f.getTrace());
}
}
}
TheTest.java
public class TheTest {
@ParameterizedTest
@ValueSource(strings = {"A", "B"})
public void readFile_1(final String s) {
System.out.println(s);
}
}
输出:
A total of 1 tests were executed.
A total of 1 failed.
Invalid test class 'TheTest':
1. No runnable methods
org.junit.runners.model.InvalidTestClassError: Invalid test class 'TheTest':
1. No runnable methods
at org.junit.runners.ParentRunner.validate(ParentRunner.java:525)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:102)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:84)
at org.junit.runners.JUnit4.<init>(JUnit4.java:23)
at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:10)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:70)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:37)
at org.junit.runner.Computer.getRunner(Computer.java:50)
at org.junit.runner.Computer$1.runnerForClass(Computer.java:31)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:70)
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:125)
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:111)
at org.junit.runners.Suite.<init>(Suite.java:81)
at org.junit.runner.Computer$2.<init>(Computer.java:33)
at org.junit.runner.Computer.getSuite(Computer.java:28)
at org.junit.runner.Request.classes(Request.java:77)
at org.junit.runner.Request.classes(Request.java:92)
at Main.main(Main.java:8)
Process finished with exit code 0
如您所见,JUnit无法将方法识别为单元测试。如果@Test
在上添加@ParametrizedTest
,则JUnit会抱怨该测试具有参数-因此,它显然不理解它是参数化测试。
我该如何实现?谢谢!
问题是我用来调用测试的方案仅适用于JUnit 4。
这适用于JUnit 5:
public class Main {
public static void main(final String args[]) {
final LauncherDiscoveryRequest launcherDiscoveryRequest = LauncherDiscoveryRequestBuilder.request()
.selectors(selectClass(TheTest.class))
.build();
final Launcher launcher = LauncherFactory.create();
TestPlan testPlan = launcher.discover(launcherDiscoveryRequest);
SummaryGeneratingListener listener = new SummaryGeneratingListener();
launcher.registerTestExecutionListeners(listener);
launcher.execute(launcherDiscoveryRequest);
TestExecutionSummary summary = listener.getSummary();
summary.printTo(new PrintWriter(System.out));
}
}
有关更多信息,请参见https://www.baeldung.com/junit-tests-run-programmatically-from-java
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