我正在尝试编写单元测试,Bar以便Foo对的方法进行调用read()。我添加了patch命令,setUp()因为其他测试也将使用此补丁。
如何检查该read()函数是否已使用期望的参数调用?
foo.py
class Foo(object):
def __init__(self):
self.table = {'foo': 1}
def read(self, name):
return self.table[name]
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bar.py
import foo
class Bar(object):
def act(self):
a = foo.Foo()
return a.read('foo')
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test_bar.py
import bar
import unittest
from mock import patch
class TestBar(unittest.TestCase):
def setUp(self):
self.foo_mock = patch('bar.foo.Foo', autospec=True).start()
self.addCleanup(patch.stopall)
def test_can_call_foo_with_correct_arguments(self):
a = bar.Bar()
a.act()
self.foo_mock.read.assert_called_once_with('foo')
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python -m unittest discover
F
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FAIL: test_can_call_foo_with_correct_arguments (test_bar.TestBar)
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Traceback (most recent call …Run Code Online (Sandbox Code Playgroud)