Question

ENV：

爪哇
Maven 3.5.2
JUnit 4.12
Travis CI服务器

我在这里有一些测试用例

@Test
public void ItShouldMoveCheckerFrom00to10 (){
    Checker c = board.addChecker(0,0).getCheckerFromLocation(0,0 );
    c.move().Right();
    board.updatedBoard();
    Assert.assertEquals(true,board.checkerExistAt(1,0));
}

@Test
    public void ItShouldJumpCheckerFrom00to20WithOneCheckerAt10 (){
        checkers.add(board.addChecker(0,0).getCheckerFromLocation(0,0 ));
        checkers.add(board.addChecker(1,0).getCheckerFromLocation(1,0 ));
        checkers.get(0).jump().Right();
        board.updatedBoard();
        Assert.assertEquals(true,board.checkerExistAt(2,0));
    }

@Test
public void ItShouldJumpCheckerFrom00to2Negative2WithTwoCheckersAt10And2Negative1 (){
    checkers.add(board.addChecker(0,0).getCheckerFromLocation(0,0 ));
    checkers.add(board.addChecker(1,0).getCheckerFromLocation(1,0 ));
    checkers.add(board.addChecker(2,-1).getCheckerFromLocation(1,0 ));

    checkers.get(0).jump().Right().LeftDown();
    board.updatedBoard();

    Assert.assertEquals(true,board.checkerExistAt(2,-2));
}

Travis配置：

language: java
jdk:
  - oraclejdk8
  - oraclejdk7

script:
  - mvn test -B

问题是我在本地机器上使用mvn测试成功测试我承诺github，在运行测试后，oraclejdk 8不会出错，但是这三个测试用例都会导致openjdk7失败。日志在这里，我标记三个中的一个，错误是相同的：

ItShouldJumpCheckerFrom00to20WithOneCheckerAt10(homework.IntegratedTest)  Time elapsed: 0.001 sec  <<< ERROR!
java.lang.NullPointerException
    at homework.IntegratedTest.ItShouldJumpCheckerFrom00to20WithOneCheckerAt10(IntegratedTest.java:30)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)

如何修复它，或者不使用openjdk7进行测试？

Answer 1

我在代码中发现了一些问题我需要拆除所有对象，因为测试运行器是上下文切换，这意味着许多运行测试，而它可能切换到另一个测试，所以这使我的测试失败。

使用JDK 7构建失败但在Travis CI服务器上使用JDK 8成功

1 个答案: