Python 使用多个输入测试单击应用程序提示
我已经使用Click和Python编写了一个小的命令行应用程序,我现在正尝试为其编写测试(主要是为了学习如何测试Click应用程序,以便我可以继续测试我正在开发的应用程序) 下面是我要测试的一个函数:Python 使用多个输入测试单击应用程序提示,python,unit-testing,command-line-interface,pytest,python-click,Python,Unit Testing,Command Line Interface,Pytest,Python Click,我已经使用Click和Python编写了一个小的命令行应用程序,我现在正尝试为其编写测试(主要是为了学习如何测试Click应用程序,以便我可以继续测试我正在开发的应用程序) 下面是我要测试的一个函数: @click.group() def main(): pass @main.command() @click.option('--folder', '-f', prompt="What do you want to name the folder? (No spaces plea
@click.group()
def main():
pass
@main.command()
@click.option('--folder', '-f', prompt="What do you want to name the folder? (No spaces please)")
def create_folder(folder):
while True:
if " " in folder:
click.echo("Please enter a name with no spaces.")
folder = click.prompt("What do you want to name the folder?", type=str)
if folder in os.listdir():
click.echo("This folder already exists.")
folder = click.prompt("Please choose a different name for the folder")
else:
break
os.mkdir(folder)
click.echo("Your folder has been created!")
我正在尝试使用Click的内置测试(以及更多详细信息)和pytest来测试这一点。这在我测试一个可接受的文件夹名(即没有空格且不存在的文件夹名)的情况下效果很好。见下文:
import clicky # the module we're testing
import os
from click.testing import CliRunner
import click
import pytest
input sys
runner = CliRunner()
folder = "myfolder"
folder_not = "my folder"
question_create = "What do you want to name the folder? (No spaces please): "
echoed = "\nYour folder has been created!\n"
def test_create_folder():
with runner.isolated_filesystem():
result = runner.invoke(clicky.create_folder, input=folder)
assert folder in os.listdir()
assert result.output == question_create + folder + echoed
我现在想测试这个函数,如果我提供了一个不允许的文件夹名,比如一个带有空格的文件夹名,然后在提示我不能有空格后,我将提供一个可接受的文件夹名。但是,我不知道如何使click.runner
接受多个输入值,这是我唯一能想到的方法。我也愿意使用unittest mocking,但我不确定如何将其集成到Click进行测试的方式中,除了这个问题,到目前为止,这种方式工作得非常好。以下是我对多个输入的尝试:
def test_create_folder_not():
with runner.isolated_filesystem():
result = runner.invoke(clicky.create_folder, input=[folder_not, folder]) # here i try to provide more than one input
assert result.output == question_create + folder_not + "\nPlease enter a name with no spaces.\n" + "What do you want to name the folder?: " + folder + echoed
我试图通过将多个输入放在一个列表中来提供多个输入,就像我在mocking中看到的那样,但我得到了以下错误:
'list' object has no attribute 'encode'
如果您对此有任何想法,我们将不胜感激 要向测试运行程序提供多个输入,只需将输入与
\n
连接起来即可,如下所示:
代码:
结果:
使用click.ParamType
但是,我建议您可以使用ParamType
来提示所需的文件名属性。Click提供了一个可以子类化的ParamType
,然后传递到Click.option()
。然后可以通过单击完成格式检查和重新提示
您可以将ParamType子类化,如:
import click
class NoSpacesFolder(click.types.StringParamType):
def convert(self, value, param, ctx):
folder = super(NoSpacesFolder, self).convert(value, param, ctx)
if ' ' in folder:
raise self.fail("No spaces allowed in selection '%s'." %
value, param, ctx)
if folder in os.listdir():
raise self.fail("This folder already exists.\n"
"Please choose another name.", param, ctx)
return folder
使用参数类型:
要使用自定义参数类型,请将其传递给click.option()
类似:
@main.command()
@click.option(
'--folder', '-f', type=NoSpacesFolder(),
prompt="What do you want to name the folder? (No spaces please)")
def create_folder(folder):
os.mkdir(folder)
click.echo("Your folder has been created!")
import click
class NoSpacesFolder(click.types.StringParamType):
def convert(self, value, param, ctx):
folder = super(NoSpacesFolder, self).convert(value, param, ctx)
if ' ' in folder:
raise self.fail("No spaces allowed in selection '%s'." %
value, param, ctx)
if folder in os.listdir():
raise self.fail("This folder already exists.\n"
"Please choose another name.", param, ctx)
return folder
@main.command()
@click.option(
'--folder', '-f', type=NoSpacesFolder(),
prompt="What do you want to name the folder? (No spaces please)")
def create_folder(folder):
os.mkdir(folder)
click.echo("Your folder has been created!")