聲明不在Python中執行模擬

-1

我想對我正在構建的一些代碼實現一些單元測試，但我看到這種奇怪的行爲，即使我將函數調用的返回值設置爲False，相關代碼不會執行，因此斷言instance.fail_json.assert_called_with(msg='Not enough parameters specified.')失敗。聲明不在Python中執行模擬

有沒有別的東西，我需要被設置？

project.py：

def main(): 
    # define the available arguments/parameters that a user can pass 
    # to the module 
    module_args = dict(
     name=dict(type='str', required=True), 
     ticktype=dict(type='str'), 
     path=dict(type='str'), 
     dbrp=dict(type='str'), 
     state=dict(type='str', required=True, choices=["present", "absent"]), 
     enable=dict(type='str', default="no", choices=["yes","no","da","net"]) 
    ) 

    required_if=[ 
     [ "state", "present", ["name", "type", "path", "dbrp", "enabled"] ], 
     [ "state", "absent", ["name"]] 
    ] 

    # seed the result dict in the object 
    # we primarily care about changed and state 
    # change is if this module effectively modified the target 
    # state will include any data that you want your module to pass back 
    # for consumption, for exampole, in a subsequent task 
    result = dict(
     changed=False, 
     original_message='', 
     message='' 
    ) 

    # the AnsibleModule object will be our abstraction working with Ansible 
    # this includes instantiation, a couple of common attr would be the 
    # args/params passed to the execution, as well as if the module 
    # supports check mode 
    module = AnsibleModule(
     argument_spec=module_args, 
     supports_check_mode=False 
    ) 

    # if the user is working with this module in only check mode we do not 
    # want to make any changes to the environment, just return the current 
    # state with no modifications 
    if module.check_mode: 
     return result 

    return_val = run_module(module) 
    return_val = True 
    if return_val is True: 
     module.exit_json(changed=True, msg="Project updated.") 
    else: 
     module.fail_json(changed=True, msg="Not enough parameters found.")

test_project.py：

@patch('library.project.run_module') 
@patch('library.project.AnsibleModule') 
def test_main_exit_functionality_failure(mock_module, mock_run_module): 
    """ 
    project - test_main_exit_functionality - failure 
    """ 
    instance = mock_module.return_value 

    # What happens when the run_module returns false 
    # that is run_module fails 
    mock_run_module.return_value = False 

    project.main() 

    # AnsibleModule.exit_json should not activated 
    assert_equals(instance.fail_json.call_count, 0) 

    #AnsibleModule.fail_json should be called 
    instance.fail_json.assert_called_with(msg='Not enough parameters 
    specified.')

來源

2017-09-17 1up

這實際上並不是一個[最小，完整和可驗證的示例]（https://stackoverflow.com/help/mcve） - 讀取沒有上下文的代碼非常困難。你應該仔細閱讀你的測試代碼，以確保它說明了你的想法。我認爲主要問題可能是最後一行。你必須將期望的參數傳遞給'assert_called_with'。它應該讀取'instance.fail_json.assert_called_with（changed = True，msg ='沒有足夠的參數指定。'）' – ryanh119

我會返回並更新代碼以反映上述標準。但是，如果我將mock_run_module的返回值設置爲'False'： '''mock_run_module.return_value = False''' 將會導致main中的if-else分支執行false並因此隨後運行module.fail_json（ changed = True，msg =「沒有足夠的參數指定。」）？爲什麼沒有運行是我的主要脫節。 '''如果return_value爲True： module.exit_json（changed = True，msg =「」Project updated。「） else： module.fail_json（changed = True，msg =」找不到足夠的參數。 '' – 1up

重讀你的產品代碼。它集RETURN_VAL爲真就行了檢查，如果它是真實的之前：

... 

return_val = run_module(module) 

return_val = True 

if return_val is True: 
    ...

return_val始終是真實的，不管是什麼run_module回報，所以無論你在測試中做什麼，生產代碼將始終執行「真'if-else支票的分支。

來源

2017-09-21 01:33:02 ryanh119

聲明不在Python中執行模擬

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