使用Mockitos传递参数化的输入 [英] passing Parameterized input using Mockitos

问题描述

我正在使用Mockito进行单元测试.我想知道是否有可能像Junit测试中那样发送参数化的输入参数
例如

I am using Mockito for unit testing. I am wondering if its possible to send Parametrized input parameters with as in Junit testing
e.g

@InjectMocks
MockClass mockClass = new MockClass();

@Test
public void mockTestMethod()
    {
    mockClass.testMethod(stringInput); 
// here I want to pass a list of String inputs 
// this is possible in Junit through Parameterized.class.. 
// wondering if its can be done in Mockito
    } 

推荐答案

在JUnit中，参数化测试使用

In JUnit, Parameterized tests use a special runner that ensure that the test is instantiated multiple times, so each test method is called multiple times. Mockito is a tool for writing specific unit tests, so there is no built-in ability to run the same test multiple times with different Mockito expectations.

如果您希望更改测试条件，最好的选择是执行以下一项操作:

If you want your test conditions to change, your best bet is to do one of the following:

• 使用JUnit参数化您的测试，并为所需的模拟输入提供参数；
• 在测试中运行不同参数的循环，不幸的是避免了每种方法测试一件事"的思想
• 提取一个实际执行测试的方法，并为所需的每个模拟创建一个新的@Test方法.

• Parameterize your test using JUnit, with a parameter for the mock inputs you want;
• Run a loop of different parameters in your test, which unfortunately avoids the "test one thing per method" philosophy
• Extract a method that actually performs the test, and create a new @Test method for each mock you want.

请注意，没有禁止将模拟对象用作@Parameterized测试参数.如果您希望基于模拟进行参数化，则可以执行此操作，可能会创建模拟并在测试的静态方法中设置期望值.

Note that there's no prohibition on using mock objects as @Parameterized test parameters. If you're looking to parameterize based on mocks, you can do that, possibly creating the mock and setting the expectations in a static method on the test.

有关跑步者的注意事项:此 @Before和@After方法或

Note about runners: This Parameterized test runner conflicts with Mockito's MockitoJUnitRunner: Each test class can only have one runner. You'll want to switch to @Before and @After methods or a Mockito JUnit4 rule for your setup, if you use them both.

例如，从一个不同的答案压缩而来，详细说明了参数化运行程序与JUnit规则以及如何从 JUnit4参数化测试文档页面和

As an example, compressed from a different answer that explains more about Parameterized runners versus JUnit rules and lifting from the JUnit4 Parameterized Test doc page and MockitoRule doc page:

@RunWith(Parameterized.class)
public class YourComponentTest {
    @Rule public MockitoRule rule = MockitoJUnit.rule();
    @Mock YourDep mockYourDep;

    @Parameters public static Collection<Object[]> data() { /* Return the values */ }

    public YourComponentTest(Parameter parameter) { /* Save the parameter to a field */ }

    @Test public void test() { /* Use the field value in assertions */ }
}

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