Question

我想测试以下测试代码，以便在测试代码中创建对象时是否使用给定的配置参数。为了实现这一点，我尝试在开始时覆盖config参数，捕获对象并断言是否正确设置了字段。

不幸的是，application.conf中的配置参数不会被我的测试值覆盖。怎么了？如何覆盖测试的config参数？

application.conf：

email.default_from_address="my@company.com"
email.default_from_name="MyCompany"

测试：

  @Test
  public void testReadFromConfig() throws IOException, MandrillApiError {
    final Map<String, String> testConfig = new HashMap<>();
    final String fromName = "UnitTest From";
    final String fromEmail = "from@unittest.com";
    testConfig.put("email.default_from_name", fromName);
    testConfig.put("email.default_from_address", fromEmail);
    testConfig.putAll(inMemoryDatabase());

    running(fakeApplication(testConfig), () -> {
      MandrillEmailService emailService = new MandrillEmailService(
          mockedMandrillApi);
      EmailMessage testMessage = createTestMessageHelper(
          EmailMessage.CONTENT_TYPE.TEXT_HTML);
      emailService.send(testMessage);
    });

    ArgumentCaptor<MandrillMessage> captorForMandrillMsg =
        ArgumentCaptor.forClass(MandrillMessage.class);
    verify(mockedMessagesApi).send(captorForMandrillMsg.capture(), eq(false));

    MandrillMessage capturedMandrillMsg = captorForMandrillMsg.getValue();
    assertEquals(fromName, capturedMandrillMsg.getFromName());
    assertEquals(fromEmail, capturedMandrillMsg.getFromEmail());
  }

错误：

failed: expected:<[UnitTest From]> but was:<[MyCompany]>

Answer 1

我发现在Play测试框架中覆盖配置非常困难。它必须是Play错误。如果您不熟悉GlobalSettings课程，则此处为resource。尝试覆盖onLoadConfig方法之一，如下所示：

@Override
public Configuration onLoadConfig(Configuration config, File path, ClassLoader classloader) {
    if(Play.isTest()){
         // load test configuration and overwrite properties programmatically.
    }
}

Answer 2

我的失败。上面提到的代码有效。问题是我在静态块中读取了配置......

public class MandrillEmailService implements EmailService {

  private final static String FROM_ADDRESS;
  private final static String FROM_NAME;
  private final MandrillApi mandrillApi;

  static {
    FROM_ADDRESS = Play.application().configuration()
            .getString("email.default_from_address");
    FROM_NAME = Play.application().configuration()
            .getString("email.default_from_name");
  }

...

Play2：如何在单元测试中覆盖配置值？

2 个答案: