测试是否使用其他模拟调用了mock

Question

我正在尝试测试是否使用另一个模拟对象调用了模拟对象。

@patch(__name__ + '.xero_helper.PublicCredentials')
@patch(__name__ + '.xero_helper.Xero')
def testGetValidPublicXeroInstance(self, XeroMock, CredentialsMock):
    xero_helper.get_xero_instance('abc')  # Do relevant stuff

    CredentialsMock.assert_called_with(**org.oauth_credentials)  # OK
    XeroMock.assert_called_once()  # OK
    XeroMock.assert_called_with(CredentialsMock)  # Not OK

前两个assert传球，而最后一个传球

AssertionError: Expected call: Xero(<MagicMock name='PublicCredentials' id='4377636560'>)
Actual call: Xero(<MagicMock name='PublicCredentials()' id='4377382544'>)

验证使用XeroMock调用CredentialsMock的正确方法是什么？

Answer 1

您的代码称为 CredentialsMock模拟对象，可能是为了创建实例。请注意结果名称中的()：

<MagicMock name='PublicCredentials()' id='4377382544'>
#                                 ^^ called

当你传入模拟本身时：

<MagicMock name='PublicCredentials' id='4377636560'>
#                                ^ not called

测试return_value结果：

XeroMock.assert_called_with(CredentialsMock.return_value)