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from collections import namedtuple
import pytest
from mockito import args, invocation, kwargs, mock, when
class Dog(object):
def bark(self, sound):
return "%s!" % sound
def waggle(self):
return 'waggle'
class CallSignature(namedtuple('CallSignature', 'args kwargs')):
def raises(self, reason):
return pytest.mark.xfail(self, raises=reason, strict=True)
def sig(*args, **kwargs):
return CallSignature(args, kwargs)
class TestCallMethodWithSignature:
def testNoArg(self):
rex = Dog()
when(rex).waggle().thenReturn('wuff')
assert rex.waggle() == 'wuff'
with pytest.raises(TypeError):
rex.waggle(1)
with pytest.raises(TypeError):
rex.waggle(Ellipsis)
with pytest.raises(TypeError):
rex.waggle(args)
with pytest.raises(TypeError):
rex.waggle(kwargs)
with pytest.raises(TypeError):
rex.waggle(*args)
with pytest.raises(TypeError):
rex.waggle(**kwargs)
def testExpectingSpecificInputAsPositionalArgument(self):
rex = Dog()
when(rex).bark(1).thenReturn('wuff')
assert rex.bark(1) == 'wuff'
with pytest.raises(invocation.InvocationError):
rex.bark(sound=1)
with pytest.raises(invocation.InvocationError):
rex.bark(Ellipsis)
with pytest.raises(invocation.InvocationError):
rex.bark(args)
with pytest.raises(invocation.InvocationError):
rex.bark(*args)
with pytest.raises(invocation.InvocationError):
rex.bark(kwargs)
with pytest.raises(TypeError):
rex.bark(1, 2)
with pytest.raises(TypeError):
rex.bark(wuff=1)
with pytest.raises(TypeError):
rex.bark(**kwargs)
def testExpectingSpecificInputAsKeyword(self):
rex = Dog()
when(rex).bark(sound=1).thenReturn('wuff')
assert rex.bark(sound=1) == 'wuff'
with pytest.raises(invocation.InvocationError):
rex.bark(1)
with pytest.raises(invocation.InvocationError):
rex.bark(Ellipsis)
with pytest.raises(invocation.InvocationError):
rex.bark(args)
with pytest.raises(invocation.InvocationError):
rex.bark(*args)
with pytest.raises(invocation.InvocationError):
rex.bark(kwargs)
with pytest.raises(TypeError):
rex.bark(1, 2)
with pytest.raises(TypeError):
rex.bark(wuff=1)
with pytest.raises(TypeError):
rex.bark(**kwargs)
def testExpectingStarKwargs(self):
rex = Dog()
when(rex).bark(**kwargs).thenReturn('wuff')
assert rex.bark(sound='miau') == 'wuff'
with pytest.raises(invocation.InvocationError):
rex.bark('miau')
with pytest.raises(invocation.InvocationError):
rex.bark(Ellipsis)
with pytest.raises(invocation.InvocationError):
rex.bark(kwargs)
with pytest.raises(invocation.InvocationError):
rex.bark(args)
with pytest.raises(TypeError):
rex.bark(wuff='miau')
with pytest.raises(TypeError):
rex.bark(**kwargs)
def testExpectingEllipsis(self):
rex = Dog()
when(rex).bark(Ellipsis).thenReturn('wuff')
assert rex.bark('miau') == 'wuff'
with pytest.raises(TypeError):
rex.bark('miau', 'miau')
assert rex.bark(sound='miau') == 'wuff'
with pytest.raises(TypeError):
rex.bark(wuff='miau')
assert rex.bark(Ellipsis) == 'wuff'
assert rex.bark(args) == 'wuff'
assert rex.bark(*args) == 'wuff'
assert rex.bark(kwargs) == 'wuff'
with pytest.raises(TypeError):
rex.bark(**kwargs) == 'wuff'
def testExpectingStarArgs(self):
rex = Dog()
when(rex).bark(*args).thenReturn('wuff')
assert rex.bark('miau') == 'wuff'
with pytest.raises(invocation.InvocationError):
rex.bark(sound='miau')
with pytest.raises(TypeError):
rex.bark(wuff='miau')
assert rex.bark(*args) == 'wuff'
assert rex.bark(Ellipsis) == 'wuff'
with pytest.raises(TypeError):
rex.bark(**kwargs)
class TestEllipsises:
# In python3 `bark(...)` is actually valid, but the tests must
# be downwards compatible to python 2
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig('Wuff', then='Wuff'),
sig(then='Wuff'),
])
def testEllipsisAsSoleArgumentAlwaysPasses(self, call):
rex = mock()
when(rex).bark(Ellipsis).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig('Wuff', then='Wuff'),
])
def testEllipsisAsSecondArgumentPasses(self, call):
rex = mock()
when(rex).bark('Wuff', Ellipsis).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig(then='Wuff'),
])
def testEllipsisAsSecondArgumentRejections(self, call):
rex = mock()
when(rex).bark('Wuff', Ellipsis).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff'),
sig('Wuff', 'Wuff'),
])
def testArgsAsSoleArgumentPasses(self, call):
rex = mock()
when(rex).bark(*args).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff', then='Wuff'),
sig(then='Wuff'),
])
def testArgsAsSoleArgumentRejections(self, call):
rex = mock()
when(rex).bark(*args).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff'),
sig('Wuff', 'Wuff'),
])
def testArgsAsSecondArgumentPasses(self, call):
rex = mock()
when(rex).bark('Wuff', *args).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff', then='Wuff'),
sig(then='Wuff'),
])
def testArgsAsSecondArgumentRejections(self, call):
rex = mock()
when(rex).bark('Wuff', *args).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff', then='Wuff'),
sig('Wuff', 'Wuff', then='Wuff'),
])
def testArgsBeforeConcreteKwargPasses(self, call):
rex = mock()
when(rex).bark('Wuff', *args, then='Wuff').thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig(then='Wuff'),
])
def testArgsBeforeConcreteKwargRejections(self, call):
rex = mock()
when(rex).bark('Wuff', *args, then='Wuff').thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig(then='Wuff'),
sig(then='Wuff', later='Waff')
])
def testKwargsAsSoleArgumentPasses(self, call):
rex = mock()
when(rex).bark(**kwargs).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig('Wuff', then='Wuff'),
sig('Wuff', 'Wuff', then='Wuff'),
])
def testKwargsAsSoleArgumentRejections(self, call):
rex = mock()
when(rex).bark(**kwargs).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(then='Wuff'),
sig(then='Wuff', later='Waff'),
sig(later='Waff', then='Wuff'),
])
def testKwargsAsSecondKwargPasses(self, call):
rex = mock()
when(rex).bark(then='Wuff', **kwargs).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig('Wuff', then='Wuff'),
sig('Wuff', 'Wuff', then='Wuff'),
sig(first='Wuff', later='Waff')
])
def testKwargsAsSecondKwargRejections(self, call):
rex = mock()
when(rex).bark(then='Wuff', **kwargs).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig('Wuff', then='Waff'),
sig('Wuff', 'Wuff', then='Waff'),
sig('Wuff', then='Waff', later='Woff'),
sig('Wuff', first="Wiff", then='Waff', later='Woff'),
sig('Wuff', 'Wuff', then='Waff', later="Woff"),
])
def testCombinedArgsAndKwargsPasses(self, call):
rex = mock()
when(rex).bark('Wuff', *args, then='Waff', **kwargs).thenReturn('Miau')
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(),
sig('Wuff'),
sig('Wuff', 'Wuff'),
sig(later='Woff'),
sig('Wuff', later='Woff'),
])
def testCombinedArgsAndKwargsRejections(self, call):
rex = mock()
when(rex).bark('Wuff', *args, then='Waff', **kwargs).thenReturn('Miau')
with pytest.raises(AssertionError):
assert rex.bark(*call.args, **call.kwargs) == 'Miau'
@pytest.mark.parametrize('call', [
sig(Ellipsis),
])
def testEllipsisMustBeLastThing(self, call):
rex = mock()
when(rex).bark(*call.args, **call.kwargs).thenReturn('Miau')
@pytest.mark.parametrize('call', [
sig(Ellipsis, 'Wuff'),
sig(Ellipsis, then='Wuff'),
sig(Ellipsis, 'Wuff', then='Waff'),
])
def testEllipsisMustBeLastThingRejections(self, call):
rex = mock()
with pytest.raises(TypeError):
when(rex).bark(*call.args, **call.kwargs).thenReturn('Miau')
def testArgsMustUsedAsStarArg(self):
rex = mock()
with pytest.raises(TypeError):
when(rex).bark(args).thenReturn('Miau')
def testKwargsMustBeUsedAsStarKwarg(self):
rex = mock()
with pytest.raises(TypeError):
when(rex).bark(kwargs).thenReturn('Miau')
with pytest.raises(TypeError):
when(rex).bark(*kwargs).thenReturn('Miau')
def testNiceFormattingForEllipsis(self):
m = mock()
m.strict = False
inv = invocation.StubbedInvocation(m, 'bark', None)
inv(Ellipsis)
assert repr(inv) == 'bark(...)'
def testNiceFormattingForArgs(self):
m = mock()
m.strict = False
inv = invocation.StubbedInvocation(m, 'bark', None)
inv(*args)
assert repr(inv) == 'bark(*args)'
def testNiceFormattingForKwargs(self):
m = mock()
m.strict = False
inv = invocation.StubbedInvocation(m, 'bark', None)
inv(**kwargs)
assert repr(inv) == 'bark(**kwargs)'
|
