java 运行忽略 @Before/@After 的 Junit @Test
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Run Junit @Test that ignores @Before/@After
提问by m3th0dman
Is it possible to run a JUnit @Testmethod in a class that has a method annotated with @Before, but to ignore the @Beforemethod only for this test?
是否可以@Test在具有用 注释的方法的类中运行 JUnit方法@Before，但@Before仅在此测试中忽略该方法？
Edit: I am interested if JUnit supports this functionality, not workarounds. I am aware of workarounds like moving the test(s) in another class or removing the annotation and manually calling setUp()in each test method.
编辑：我感兴趣的是 JUnit 是否支持此功能，而不是解决方法。我知道一些变通方法，例如在另一个类中移动测试或删除注释并setUp()在每个测试方法中手动调用。
Suppose in a class there are 30 tests, and for 29 of them @Beforereally simplifies the testing initialization, but for one (or more than one) of them is useless/it complicates things.
假设在一个类中有 30 个测试，其中 29 个@Before测试确实简化了测试初始化，但其中一个（或多个）没有用/它使事情复杂化。
public class MyTestClass {
@Before
public void setUp() {
//setup logic
}
@Test
public void test1() {
//[...]
}
@Test
public void test2() {
//[...]
}
//more tests here
@Test(ignoreBefore = true, ignoreAfter = true //false by default)
//something equivalent to this
public void test20() {
//[...]
}
}
采纳答案by Matthew Farwell
You can do this with a TestRule. See my answer to Exclude individual test from 'before' method in JUnit. Basically, implement ExternalResource, and in the apply method, check if there is a specific annotation on the method, and if there is, don't run the before/after method. You'll have to specifically call the before/after from your rule though.
您可以使用 TestRule 执行此操作。请参阅我对Exclude individual test from 'before' method in JUnit 的回答。基本上，实现ExternalResource，在 apply 方法中，检查该方法是否有特定的注解，如果有，不要运行 before/after 方法。不过，您必须根据规则专门调用之前/之后。
回答by kan
If it useless it should not be a problem - does it harm to run the setUp once more?
如果它没用，那应该不是问题 - 再次运行 setUp 是否有害？
However I don't think it's possible and looks for me as a cripple feature.
但是，我认为这是不可能的，并且将我视为一个残废的功能。
Another approach - move that test to a separate test-class.
另一种方法 - 将该测试移动到单独的测试类。
回答by ashxvi
With JUnit 5 You can have nested tests using @Nested annotation :
使用 JUnit 5 您可以使用 @Nested 注释进行嵌套测试：
public class MainClass {
@Nested
class InnerClass1 {
@BeforeEach
void setup(){}
@Test
void test1(){}
}
@Nested
class InnerClass2 {
// No setup
@Test
void test2(){}
}
}
