在单元测试中如何断言“N”异常？(How to assert “N” exceptions have been thrown in this unit test?)

我有以下单元测试， 几乎可以正常工作：

@Test(expectedExceptions = {IllegalArgumentException.class}, expectedExceptionsMessageRegExp = PasswordValidator.INVALID_PASSWORD) public void testInvalidPasswordsThrowException() throws Exception { for (String invalidPassword: getInvalidPasswords()){ new LaxPasswordValidator(invalidPassword); } } private String[] getInvalidPasswords() { return new String[] {INVALID_PASSWORD_1, INVALID_PASSWORD_2, INVALID_PASSWORD_3, INVALID_PASSWORD_4, INVALID_PASSWORD_5, INVALID_PASSWORD_6, INVALID_PASSWORD_7, INVALID_PASSWORD_8, INVALID_PASSWORD_9, INVALID_PASSWORD_10}; }

正如您所看到的，它只是断言new LaxPasswordValidator(invalidPassword)按预期工作并引发异常。

问题：它只是考虑了INVALID_PASSWORD_1 ，所以它在第一次迭代中停止; 它会启动异常，但不会继续检查其他密码。我怎样才能让它们全部测试？谢谢

I've got the following unit test, which works almost fine:

@Test(expectedExceptions = {IllegalArgumentException.class}, expectedExceptionsMessageRegExp = PasswordValidator.INVALID_PASSWORD) public void testInvalidPasswordsThrowException() throws Exception { for (String invalidPassword: getInvalidPasswords()){ new LaxPasswordValidator(invalidPassword); } } private String[] getInvalidPasswords() { return new String[] {INVALID_PASSWORD_1, INVALID_PASSWORD_2, INVALID_PASSWORD_3, INVALID_PASSWORD_4, INVALID_PASSWORD_5, INVALID_PASSWORD_6, INVALID_PASSWORD_7, INVALID_PASSWORD_8, INVALID_PASSWORD_9, INVALID_PASSWORD_10}; }

As you can see, it is just asserting that new LaxPasswordValidator(invalidPassword) works as expected and throws an exception.

Problem: It is just taking INVALID_PASSWORD_1 into account, so it stops in the first iteration; it launches the exception but does not continue checking the other passwords. How can I make it test them all? Thanks

最满意答案

您必须将方法注释为@DataProvider

@DataProvider(name = "invalid-passwords") public Object[][] getInvalidPasswords() { return new String[][]{ {"INVALID_PASSWORD_1"}, {"INVALID_PASSWORD_2"}, {"INVALID_PASSWORD_3"} }; }

并注释@Test方法以将此数据提供者用于参数。

@Test(expectedExceptions = {IllegalArgumentException.class}, expectedExceptionsMessageRegExp = PasswordValidator.INVALID_PASSWORD, dataProvider = "invalid-passwords") public void testInvalidPasswords(String password) throws Exception { new LaxPasswordValidator(password); }

You must annotate the method as @DataProvider

@DataProvider(name = "invalid-passwords") public Object[][] getInvalidPasswords() { return new String[][]{ {"INVALID_PASSWORD_1"}, {"INVALID_PASSWORD_2"}, {"INVALID_PASSWORD_3"} }; }

and annotate the @Test method to use this dataprovider for the parameters.

@Test(expectedExceptions = {IllegalArgumentException.class}, expectedExceptionsMessageRegExp = PasswordValidator.INVALID_PASSWORD, dataProvider = "invalid-passwords") public void testInvalidPasswords(String password) throws Exception { new LaxPasswordValidator(password); }

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