huaxlin/Basic Testing of Testing Click Applications.md

## Basic Testing of Testing Click Applications.md

      
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              Basic Testing of Testing Click Applications.md
            
          
    Basic Click Application
$ pip install click
$ python click_hello.py Jeff
Hello Jeff!
$ python click_hello.py Alice
Hello Alice!
Test It
$ pip install pytest
$ pytest test_click_hello.py
====== test session starts ========
platform linux -- Python 3.8.16, pytest-7.2.1, pluggy-1.0.0
rootdir: ...
collected 1 item

test_click_hello.py .    [100%]
======= 1 passed in 0.02s =======

  
## click_hello.py
import click

@click.command()
@click.argument('name')
def hello(name):
   click.echo(f'Hello {name}!')

if __name__ == '__main__':
    hello()

## test_click_hello.py
from click.testing import CliRunner
from click_hello import hello

def test_hello_world():
  runner = CliRunner()
  result = runner.invoke(hello, ['Peter'])
  assert result.exit_code == 0
  assert result.output == 'Hello Peter!\n'
	import click

	@click.command()
	@click.argument('name')
	def hello(name):
	click.echo(f'Hello {name}!')

	if __name__ == '__main__':
	hello()
	from click.testing import CliRunner
	from click_hello import hello

	def test_hello_world():
	runner = CliRunner()
	result = runner.invoke(hello, ['Peter'])
	assert result.exit_code == 0
	assert result.output == 'Hello Peter!\n'