blocks|key|395944|text|如果函数知道自己的名称是可以的，那么可以使用函数属性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|395945|def+example():
++++example.has_been_called+=+True
++++pass
example.has_been_called+=+False


example()

#Actual+Code!:
if+example.has_been_called:
+++print("foo+bar")|code-block|syntax|javascript|395946|您还可以使用装饰器来设置属性：|395947|import+functools

def+trackcalls(func):
++++@functools.wraps(func)
++++def+wrapper(*args,+**kwargs):
++++++++wrapper.has_been_called+=+True
++++++++return+func(*args,+**kwargs)
++++wrapper.has_been_called+=+False
++++return+wrapper

@trackcalls
def+example():
++++pass


example()

#Actual+Code!:
if+example.has_been_called:
+++print("foo+bar")|395948|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If it's OK for the function to know its own name, you can use a function attribute:

<pre><code>def example():
 example.has_been_called = True
 pass
example.has_been_called = False


example()

#Actual Code!:
if example.has_been_called:
 print("foo bar")
</code></pre>

You could also use a decorator to set the attribute:

<pre><code>import functools

def trackcalls(func):
 @functools.wraps(func)
 def wrapper(*args, **kwargs):
 wrapper.has_been_called = True
 return func(*args, **kwargs)
 wrapper.has_been_called = False
 return wrapper

@trackcalls
def example():
 pass


example()

#Actual Code!:
if example.has_been_called:
 print("foo bar")
</code></pre>

blocks|key|396031|text|这里有一个装饰器，它将使用colorama观察你所有的函数，并返回一个很好的输出。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|396032|try:
++++import+colorama
except+ImportError:
++++class+StdClass:+pass
++++def+passer(*args,+**kwargs):+pass
++++colorama+=+StdClass()
++++colorama.init+=+passer
++++colorama.Fore+=+StdClass()
++++colorama.Fore.RED+=+colorama.Fore.GREEN+=+''

def+check_for_use(show=False):
++++if+show:
++++++++try:
++++++++++++check_for_use.functions
++++++++except+AttributeError:
++++++++++++return
++++++++no_error+=+True
++++++++for+function+in+check_for_use.functions.keys():
++++++++++++if+check_for_use.functions[function][0]+is+False:
++++++++++++++++print(colorama.Fore.RED+%2B+'The+function+{!r}+hasn\'t+been+called.+Defined+in+"{}"+'.format(function,+check_for_use.functions[function][1].__code__.co_filename))
++++++++++++++++no_error+=+False
++++++++if+no_error:
++++++++++++print(colorama.Fore.GREEN+%2B+'Great!+All+your+checked+function+are+being+called!')
++++++++return+check_for_use.functions
++++try:
++++++++check_for_use.functions
++++except+AttributeError:
++++++++check_for_use.functions+=+{}
++++++++if+colorama:
++++++++++++colorama.init(autoreset=True)

++++def+add(function):
++++++++check_for_use.functions[function.__name__]+=+[False,+function]
++++++++def+func(*args,+**kwargs):
++++++++++++check_for_use.functions[function.__name__]+=+[True,+function]
++++++++++++function(*args,+**kwargs)
++++++++return+func
++++return+add

@check_for_use()
def+hello():
++++print('Hello+world!')

@check_for_use()
def+bonjour(nb):
++++print('Bonjour+tout+le+monde!')


#+hello();+bonjour(0)

hello()


check_for_use(True)+#+outputs+the+following|code-block|syntax|javascript|396033|输出：|396034|Hello+world!
The+function+'bonjour'+hasn't+been+called.+Defined+in+"path_to_file.py"+|396035|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Here's a decorator that will watch all your functiona, using colorama, and return a nice output.

<pre><code>try:
 import colorama
except ImportError:
 class StdClass: pass
 def passer(*args, **kwargs): pass
 colorama = StdClass()
 colorama.init = passer
 colorama.Fore = StdClass()
 colorama.Fore.RED = colorama.Fore.GREEN = ''

def check_for_use(show=False):
 if show:
 try:
 check_for_use.functions
 except AttributeError:
 return
 no_error = True
 for function in check_for_use.functions.keys():
 if check_for_use.functions[function][0] is False:
 print(colorama.Fore.RED + 'The function {!r} hasn\'t been called. Defined in "{}" '.format(function, check_for_use.functions[function][1].__code__.co_filename))
 no_error = False
 if no_error:
 print(colorama.Fore.GREEN + 'Great! All your checked function are being called!')
 return check_for_use.functions
 try:
 check_for_use.functions
 except AttributeError:
 check_for_use.functions = {}
 if colorama:
 colorama.init(autoreset=True)

 def add(function):
 check_for_use.functions[function.__name__] = [False, function]
 def func(*args, **kwargs):
 check_for_use.functions[function.__name__] = [True, function]
 function(*args, **kwargs)
 return func
 return add

@check_for_use()
def hello():
 print('Hello world!')

@check_for_use()
def bonjour(nb):
 print('Bonjour tout le monde!')


# hello(); bonjour(0)

hello()


check_for_use(True) # outputs the following
</code></pre>

Output:

<pre><code>Hello world!
The function 'bonjour' hasn't been called. Defined in "path_to_file.py" 
</code></pre>

blocks|key|396046|text|我们可以使用mock.Mock|type|unstyled|depth|inlineStyleRanges|entityRanges|data|396047|from+unittest+import+mock


def+check_called(func):
++++return+mock.Mock(side_effect=func)


@check_called
def+summator(a,+b):
++++print(a+%2B+b)


summator(1,+3)
summator.assert_called()
assert+summator.called+==+True
assert+summator.call_count+>+0

summator.assert_called_with(1,+3)

summator.assert_called_with(1,+5)++#+error
#+AssertionError:+Expected+call:+mock(1,+5)
#+Actual+call:+mock(1,+3)|code-block|syntax|javascript|396048|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

We can use mock.Mock

<pre class="lang-py prettyprint-override"><code>from unittest import mock


def check_called(func):
 return mock.Mock(side_effect=func)


@check_called
def summator(a, b):
 print(a + b)


summator(1, 3)
summator.assert_called()
assert summator.called == True
assert summator.call_count &gt; 0

summator.assert_called_with(1, 3)

summator.assert_called_with(1, 5) # error
# AssertionError: Expected call: mock(1, 5)
# Actual call: mock(1, 3)
</code></pre>

I am programming in Python, and I am wondering if i can test if a function has been called in my code 

<pre><code>def example():
 pass
example()
#Pseudocode:
if example.has_been_called:
 print("foo bar")
</code></pre>

How would I do this?

Find Out If a Function has been Called

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在用Python编程，我想知道是否可以在我的代码中测试是否调用了函数def example():    passexample()#Pseudocode:if example.has_been_called:   print("foo bar")我该怎么做呢？

问查看函数是否已被调用
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