我正在编写一个单元测试来检查电子邮件验证逻辑。在运行测试时,该逻辑会抛出空指针异常。但是使用模拟器可以正常工作。有人能帮我解决这个问题吗?
public static String validate(String email, String password) {
if (email == null || email.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()) {
return "Enter valid email address";
}
if (password.isEmpty() || password.length() < 4) {
return "Password should be between 4 and 10 alphanumeric characters";
}
return null;
}
以下是我的单元测试。
@Test
public void validateShouldReturnMessageIfYouPassAnInvalidEmail() throws Exception {
String validateMessage = LoginService.validate("abcdef", "password");
assertEquals("Enter valid email address", validateMessage);
}
我遇到的错误是:
java.lang.NullPointerException
at com.tryout.hemanth.expensetracker.service.LoginService.validate(LoginService.java:11)
LoginService
里面有什么? - Shree Krishnaandroid.util.Patterns.EMAIL_ADDRESS
为null
。 - Axel