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# Copyright (c) 2008-2016 Szczepan Faber, Serhiy Oplakanets, Herr Kaste
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import pytest
from mockito import any, mock, times, verify, when
from .test_base import TestBase
class TestEmptyMocks:
def testAllMethodsReturnNone(self):
dummy = mock()
assert dummy.foo() is None
assert dummy.foo(1, 2) is None
def testConfigureDummy(self):
dummy = mock({'foo': 'bar'})
assert dummy.foo == 'bar'
def testConfigureDummyWithFunction(self):
dummy = mock({
'getStuff': lambda s: s + ' thing'
})
assert dummy.getStuff('da') == 'da thing'
verify(dummy).getStuff('da')
def testDummiesAreCallable(self):
dummy = mock()
assert dummy() is None
assert dummy(1, 2) is None
def testCallsAreVerifiable(self):
dummy = mock()
dummy(1, 2)
verify(dummy).__call__(1, 2)
def testConfigureCallBehavior(self):
dummy = mock()
when(dummy).__call__(1).thenReturn(2)
assert dummy(1) == 2
verify(dummy).__call__(1)
def testCheckIsInstanceAgainstItself(self):
dummy = mock()
assert isinstance(dummy, dummy.__class__)
def testConfigureMagicMethod(self):
dummy = mock()
when(dummy).__getitem__(1).thenReturn(2)
assert dummy[1] == 2
class TestStrictEmptyMocks:
def testScream(self):
dummy = mock(strict=True)
with pytest.raises(AttributeError):
dummy.foo()
def testAllowStubbing(self):
dummy = mock(strict=True)
when(dummy).foo()
dummy.foo()
verify(dummy).foo()
def testCanConfigureCall(self):
dummy = mock(strict=True)
when(dummy).__call__(1).thenReturn(2)
assert dummy(1) == 2
def testScreamOnUnconfiguredCall(self):
dummy = mock(strict=True)
with pytest.raises(AttributeError):
dummy(1)
def testConfigureMagicMethod(self):
dummy = mock(strict=True)
when(dummy).__getitem__(1).thenReturn(2)
assert dummy[1] == 2
class StubbingTest(TestBase):
def testStubsWithReturnValue(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo")
when(theMock).getMoreStuff(1, 2).thenReturn(10)
self.assertEqual("foo", theMock.getStuff())
self.assertEqual(10, theMock.getMoreStuff(1, 2))
self.assertEqual(None, theMock.getMoreStuff(1, 3))
def testStubsWhenNoArgsGiven(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo")
when(theMock).getWidget().thenReturn("bar")
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getWidget())
def testStubsConsecutivelyWhenNoArgsGiven(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo").thenReturn("bar")
when(theMock).getWidget().thenReturn("baz").thenReturn("baz2")
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertEqual("baz", theMock.getWidget())
self.assertEqual("baz2", theMock.getWidget())
self.assertEqual("baz2", theMock.getWidget())
def testStubsWithException(self):
theMock = mock()
when(theMock).someMethod().thenRaise(Exception("foo"))
self.assertRaisesMessage("foo", theMock.someMethod)
def testStubsAndVerifies(self):
theMock = mock()
when(theMock).foo().thenReturn("foo")
self.assertEqual("foo", theMock.foo())
verify(theMock).foo()
def testStubsVerifiesAndStubsAgain(self):
theMock = mock()
when(theMock).foo().thenReturn("foo")
self.assertEqual("foo", theMock.foo())
verify(theMock).foo()
when(theMock).foo().thenReturn("next foo")
self.assertEqual("next foo", theMock.foo())
verify(theMock, times(2)).foo()
def testOverridesStubbing(self):
theMock = mock()
when(theMock).foo().thenReturn("foo")
when(theMock).foo().thenReturn("bar")
self.assertEqual("bar", theMock.foo())
def testStubsAndInvokesTwiceAndVerifies(self):
theMock = mock()
when(theMock).foo().thenReturn("foo")
self.assertEqual("foo", theMock.foo())
self.assertEqual("foo", theMock.foo())
verify(theMock, times(2)).foo()
def testStubsAndReturnValuesForSameMethodWithDifferentArguments(self):
theMock = mock()
when(theMock).getStuff(1).thenReturn("foo")
when(theMock).getStuff(1, 2).thenReturn("bar")
self.assertEqual("foo", theMock.getStuff(1))
self.assertEqual("bar", theMock.getStuff(1, 2))
def testStubsAndReturnValuesForSameMethodWithDifferentNamedArguments(self):
repo = mock()
when(repo).findby(id=6).thenReturn("John May")
when(repo).findby(name="John").thenReturn(["John May", "John Smith"])
self.assertEqual("John May", repo.findby(id=6))
self.assertEqual(["John May", "John Smith"], repo.findby(name="John"))
def testStubsForMethodWithSameNameAndNamedArgumentsInArbitraryOrder(self):
theMock = mock()
when(theMock).foo(first=1, second=2, third=3).thenReturn(True)
self.assertEqual(True, theMock.foo(third=3, first=1, second=2))
def testStubsMethodWithSameNameAndMixedArguments(self):
repo = mock()
when(repo).findby(1).thenReturn("John May")
when(repo).findby(1, active_only=True).thenReturn(None)
when(repo).findby(name="Sarah").thenReturn(["Sarah Connor"])
when(repo).findby(name="Sarah", active_only=True).thenReturn([])
self.assertEqual("John May", repo.findby(1))
self.assertEqual(None, repo.findby(1, active_only=True))
self.assertEqual(["Sarah Connor"], repo.findby(name="Sarah"))
self.assertEqual([], repo.findby(name="Sarah", active_only=True))
def testStubsWithChainedReturnValues(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo") \
.thenReturn("bar") \
.thenReturn("foobar")
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertEqual("foobar", theMock.getStuff())
def testStubsWithChainedReturnValuesAndException(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo") \
.thenReturn("bar") \
.thenRaise(Exception("foobar"))
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertRaisesMessage("foobar", theMock.getStuff)
def testStubsWithChainedExceptionAndReturnValue(self):
theMock = mock()
when(theMock).getStuff().thenRaise(Exception("foo")) \
.thenReturn("bar")
self.assertRaisesMessage("foo", theMock.getStuff)
self.assertEqual("bar", theMock.getStuff())
def testStubsWithChainedExceptions(self):
theMock = mock()
when(theMock).getStuff().thenRaise(Exception("foo")) \
.thenRaise(Exception("bar"))
self.assertRaisesMessage("foo", theMock.getStuff)
self.assertRaisesMessage("bar", theMock.getStuff)
def testStubsWithReturnValueBeingException(self):
theMock = mock()
exception = Exception("foo")
when(theMock).getStuff().thenReturn(exception)
self.assertEqual(exception, theMock.getStuff())
def testLastStubbingWins(self):
theMock = mock()
when(theMock).foo().thenReturn(1)
when(theMock).foo().thenReturn(2)
self.assertEqual(2, theMock.foo())
def testStubbingOverrides(self):
theMock = mock()
when(theMock).foo().thenReturn(1)
when(theMock).foo().thenReturn(2).thenReturn(3)
self.assertEqual(2, theMock.foo())
self.assertEqual(3, theMock.foo())
self.assertEqual(3, theMock.foo())
def testStubsWithMatchers(self):
theMock = mock()
when(theMock).foo(any()).thenReturn(1)
self.assertEqual(1, theMock.foo(1))
self.assertEqual(1, theMock.foo(100))
def testStubbingOverrides2(self):
theMock = mock()
when(theMock).foo(any()).thenReturn(1)
when(theMock).foo("oh").thenReturn(2)
self.assertEqual(2, theMock.foo("oh"))
self.assertEqual(1, theMock.foo("xxx"))
def testDoesNotVerifyStubbedCalls(self):
theMock = mock()
when(theMock).foo().thenReturn(1)
verify(theMock, times=0).foo()
def testStubsWithMultipleReturnValues(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo", "bar", "foobar")
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertEqual("foobar", theMock.getStuff())
def testStubsWithChainedMultipleReturnValues(self):
theMock = mock()
when(theMock).getStuff().thenReturn("foo", "bar") \
.thenReturn("foobar")
self.assertEqual("foo", theMock.getStuff())
self.assertEqual("bar", theMock.getStuff())
self.assertEqual("foobar", theMock.getStuff())
def testStubsWithMultipleExceptions(self):
theMock = mock()
when(theMock).getStuff().thenRaise(Exception("foo"), Exception("bar"))
self.assertRaisesMessage("foo", theMock.getStuff)
self.assertRaisesMessage("bar", theMock.getStuff)
def testStubsWithMultipleChainedExceptions(self):
theMock = mock()
when(theMock).getStuff() \
.thenRaise(Exception("foo"), Exception("bar")) \
.thenRaise(Exception("foobar"))
self.assertRaisesMessage("foo", theMock.getStuff)
self.assertRaisesMessage("bar", theMock.getStuff)
self.assertRaisesMessage("foobar", theMock.getStuff)
def testLeavesOriginalMethodUntouchedWhenCreatingStubFromRealClass(self):
class Person:
def get_name(self):
return "original name"
# given
person = Person()
mockPerson = mock(Person)
# when
when(mockPerson).get_name().thenReturn("stubbed name")
# then
self.assertEqual("stubbed name", mockPerson.get_name())
self.assertEqual("original name", person.get_name(),
'Original method should not be replaced.')
def testStubsWithThenAnswer(self):
m = mock()
when(m).magic_number().thenAnswer(lambda: 5)
self.assertEqual(m.magic_number(), 5)
when(m).add_one(any()).thenAnswer(lambda number: number + 1)
self.assertEqual(m.add_one(5), 6)
self.assertEqual(m.add_one(8), 9)
when(m).do_times(any(), any()).thenAnswer(lambda one, two: one * two)
self.assertEqual(m.do_times(5, 4), 20)
self.assertEqual(m.do_times(8, 5), 40)
when(m).do_dev_magic(any(), any()).thenAnswer(lambda a, b: a / b)
self.assertEqual(m.do_dev_magic(20, 4), 5)
self.assertEqual(m.do_dev_magic(40, 5), 8)
def test_key_words(testing="Magic"):
return testing + " Stuff"
when(m).with_key_words().thenAnswer(test_key_words)
self.assertEqual(m.with_key_words(), "Magic Stuff")
when(m).with_key_words(testing=any()).thenAnswer(test_key_words)
self.assertEqual(m.with_key_words(testing="Very Funky"),
"Very Funky Stuff")
def testStubsWithThenAnswerAndMixedArgs(self):
repo = mock()
def method_one(value, active_only=False):
return None
def method_two(name=None, active_only=False):
return ["%s Connor" % name]
def method_three(name=None, active_only=False):
return [name, active_only, 0]
when(repo).findby(1).thenAnswer(lambda x: "John May (%d)" % x)
when(repo).findby(1, active_only=True).thenAnswer(method_one)
when(repo).findby(name="Sarah").thenAnswer(method_two)
when(repo).findby(
name="Sarah", active_only=True).thenAnswer(method_three)
self.assertEqual("John May (1)", repo.findby(1))
self.assertEqual(None, repo.findby(1, active_only=True))
self.assertEqual(["Sarah Connor"], repo.findby(name="Sarah"))
self.assertEqual(
["Sarah", True, 0], repo.findby(name="Sarah", active_only=True))
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