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import pytest
from mockito import when, when2, expect, verify, patch, mock, spy2
from mockito.invocation import InvocationError
class Dog(object):
def bark(self):
pass
class Unhashable(object):
def update(self, **kwargs):
pass
def __hash__(self):
raise TypeError("I'm immutable")
@pytest.mark.usefixtures('unstub')
class TestUserExposedInterfaces:
def testWhen(self):
whening = when(Dog)
assert whening.__dict__ == {}
def testExpect(self):
expecting = expect(Dog)
assert expecting.__dict__ == {}
def testVerify(self):
dummy = mock()
verifying = verify(dummy)
assert verifying.__dict__ == {}
def testEnsureUnhashableObjectCanBeMocked(self):
obj = Unhashable()
when(obj).update().thenReturn(None)
@pytest.mark.usefixtures('unstub')
class TestPassAroundStrictness:
def testReconfigureStrictMock(self):
when(Dog).bark() # important first call, inits theMock
when(Dog, strict=False).waggle().thenReturn('Sure')
expect(Dog, strict=False).weggle().thenReturn('Sure')
with pytest.raises(InvocationError):
when(Dog).wuggle()
with pytest.raises(InvocationError):
when(Dog).woggle()
rex = Dog()
assert rex.waggle() == 'Sure'
assert rex.weggle() == 'Sure'
# For documentation; the initial strict value of the mock will be used
# here. So the above when(..., strict=False) just assures we can
# actually *add* an attribute to the mocked object
with pytest.raises(InvocationError):
rex.waggle(1)
verify(Dog).waggle()
verify(Dog).weggle()
def testReconfigureLooseMock(self):
when(Dog, strict=False).bark() # important first call, inits theMock
when(Dog, strict=False).waggle().thenReturn('Sure')
expect(Dog, strict=False).weggle().thenReturn('Sure')
with pytest.raises(InvocationError):
when(Dog).wuggle()
with pytest.raises(InvocationError):
when(Dog).woggle()
rex = Dog()
assert rex.waggle() == 'Sure'
assert rex.weggle() == 'Sure'
# For documentation; see test above. strict is inherited from the
# initial mock. So we return `None`
assert rex.waggle(1) is None
verify(Dog).waggle()
verify(Dog).weggle()
# Where to put this test?
def testEnsureAddedAttributesGetRemovedOnUnstub(self):
with when(Dog, strict=False).wggle():
pass
with pytest.raises(AttributeError):
getattr(Dog, 'wggle')
@pytest.mark.usefixtures('unstub')
class TestDottedPaths:
def testWhen(self):
when('os.path').exists('/Foo').thenReturn(True)
import os.path
assert os.path.exists('/Foo')
def testWhen2(self):
when2('os.path.exists', '/Foo').thenReturn(True)
import os.path
assert os.path.exists('/Foo')
def testPatch(self):
dummy = mock()
patch('os.path.exists', dummy)
import os.path
assert os.path.exists('/Foo') is None
verify(dummy).__call__('/Foo')
def testVerify(self):
when('os.path').exists('/Foo').thenReturn(True)
import os.path
os.path.exists('/Foo')
verify('os.path', times=1).exists('/Foo')
def testSpy2(self):
spy2('os.path.exists')
import os.path
assert not os.path.exists('/Foo')
verify('os.path', times=1).exists('/Foo')
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