[英]How to pass an array as a test parameter in JUnit Parameterized testing?
[英]Reflection Exception in parameterized JUnit test using array parameter
我試圖設置在4.11的JUnit一個參數測試,其生成一個單一的參數。 但是,此參數必須是數組本身。
以下代碼片段的預期行為是test()
運行兩次,而arguments
在第一次運行中保存數組{"test1", "test2"}
,在第二次運行中保存數組{"test3", "test4"}
跑。
@RunWith(Parameterized.class)
public class Tester {
@Parameter
private String[] arguments;
@Parameters
public static Iterable<Object[]> data() {
return Arrays.asList(
new Object[][]{
{new String[] {"test1","test2"}},
{new String[] {"test3","test4"}}
}
);
}
@Test
public void test() {
fail();
}
}
但是,當我執行測試時,會拋出SlowCheckMemberAccess
異常。 Google沒有針對此類問題提供任何結果。
任何人都可以解釋這里出了什么問題嗎?
未經過濾的JUnit跟蹤是:
java.lang.IllegalAccessException: Class org.junit.runners.Parameterized$TestClassRunnerForParameters can not access a member of class org.mafagafogigante.dungeon.entity.creatures.Tester with modifiers "private"
at sun.reflect.Reflection.ensureMemberAccess(Unknown Source)
at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(Unknown Source)
at java.lang.reflect.AccessibleObject.checkAccess(Unknown Source)
at java.lang.reflect.Field.set(Unknown Source)
at org.junit.runners.Parameterized$TestClassRunnerForParameters.createTestUsingFieldInjection(Parameterized.java:201)
at org.junit.runners.Parameterized$TestClassRunnerForParameters.createTest(Parameterized.java:179)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:244)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:241)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runners.Suite.runChild(Suite.java:127)
at org.junit.runners.Suite.runChild(Suite.java:26)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
使用@Parameter
注釋的字段必須是public
。
Cannot set parameter 'arguments'. Ensure that the field 'arguments' is public.
我不認為你需要Arrays.asList()
作為數組Iterable
,太。
如果Arrays.asList()
指定單個數組參數,也可以欺騙Arrays.asList()
。 如果要使用它,請添加顯式強制轉換。
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