[英]How to create unittests for python prompt toolkit?
I want to create unittests for my command line interface build with the Python prompt-toolkit
( https://github.com/jonathanslenders/python-prompt-toolkit ). 我想使用Python prompt-toolkit
( https://github.com/jonathanslenders/python-prompt-toolkit )为我的命令行界面构建创建单元测试。
Example Code: 示例代码:
from os import path
from prompt_toolkit import prompt
def csv():
csv_path = prompt('\nselect csv> ')
full_path = path.abspath(csv_path)
return full_path
You could mock the prompt calls. 你可以模拟提示调用。
app_file app_file
from prompt_toolkit import prompt
def word():
result = prompt('type a word')
return result
test_app_file test_app_file
import unittest
from app import word
from mock import patch
class TestAnswer(unittest.TestCase):
def test_yes(self):
with patch('app.prompt', return_value='Python') as prompt:
self.assertEqual(word(), 'Python')
prompt.assert_called_once_with('type a word')
if __name__ == '__main__':
unittest.main()
Just an attention to the point you should mock the prompt from the app.py , not from prompt_toolkit , because you want to intercept the call from the file. 只是注意你应该从app.py而不是来自prompt_toolkit模拟提示,因为你想拦截来自文件的调用。
According with the docstring module : 根据docstring模块 :
If you are using this library for retrieving some input from the user (as a pure Python replacement for GNU readline), probably for 90% of the use cases, the :func:
.prompt
function is all you need. 如果您使用此库来检索用户的一些输入(作为GNU readline的纯Python替换),可能对于90%的用例,只需要:func:.prompt
函数。
And as method docstring says: 正如docstring的方法所说:
Get input from the user and return it. 获取用户的输入并将其返回。 This is a wrapper around a lot of
prompt_toolkit
functionality and can be a replacement forraw_input
. 这是许多prompt_toolkit
功能的包装,可以替代raw_input
。 (or GNU readline.) (或GNU readline。)
Following the Getting started from project: 继入门的项目:
>>> from prompt_toolkit import prompt
>>> answer = prompt('Give me some input: ')
Give me some input: Hello World
>>> print(answer)
'Hello World'
>>> type(answer)
<class 'str'>
As prompt
method return a string type, you could use mock.return_value
to simulate the user integration with your app. 当prompt
方法返回字符串类型时,您可以使用mock.return_value
来模拟用户与您的应用程序的集成。
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