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# Copyright 2010 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
__metaclass__ = type
from testtools.matchers import (
Is,
LessThan,
Not,
)
from zope.interface import (
implements,
Interface,
)
from zope.interface.exceptions import BrokenImplementation
from zope.interface.verify import verifyObject
from zope.security.checker import NamesChecker
from zope.security.proxy import ProxyFactory
from canonical.testing.layers import DatabaseFunctionalLayer
from lp.testing import (
TestCase,
TestCaseWithFactory,
)
from lp.testing._webservice import QueryCollector
from lp.testing.matchers import (
BrowsesWithQueryLimit,
Contains,
DoesNotContain,
DoesNotCorrectlyProvide,
DoesNotProvide,
EqualsIgnoringWhitespace,
HasQueryCount,
IsNotProxied,
IsProxied,
Provides,
ProvidesAndIsProxied,
)
class ITestInterface(Interface):
"""A dummy interface for testing."""
def doFoo():
"""Dummy method for interface compliance testing."""
class Implementor:
"""Dummy class that implements ITestInterface for testing."""
implements(ITestInterface)
def doFoo(self):
pass
class DoesNotProvideTests(TestCase):
def test_describe(self):
obj = object()
mismatch = DoesNotProvide(obj, ITestInterface)
self.assertEqual(
"%r does not provide %r." % (obj, ITestInterface),
mismatch.describe())
class DoesNotCorrectlyProvideMismatchTests(TestCase):
def test_describe(self):
obj = object()
mismatch = DoesNotCorrectlyProvide(obj, ITestInterface)
self.assertEqual(
"%r claims to provide %r, but does not do so correctly."
% (obj, ITestInterface),
mismatch.describe())
def test_describe_with_extra(self):
obj = object()
mismatch = DoesNotCorrectlyProvide(
obj, ITestInterface, extra="foo")
self.assertEqual(
"%r claims to provide %r, but does not do so correctly: foo"
% (obj, ITestInterface),
mismatch.describe())
class ProvidesTests(TestCase):
def test_str(self):
matcher = Provides(ITestInterface)
self.assertEqual("provides %r." % ITestInterface, str(matcher))
def test_matches(self):
matcher = Provides(ITestInterface)
self.assertEqual(None, matcher.match(Implementor()))
def match_does_not_provide(self):
obj = object()
matcher = Provides(ITestInterface)
return obj, matcher.match(obj)
def test_mismatches_not_implements(self):
obj, mismatch = self.match_does_not_provide()
self.assertIsInstance(mismatch, DoesNotProvide)
def test_does_not_provide_sets_object(self):
obj, mismatch = self.match_does_not_provide()
self.assertEqual(obj, mismatch.obj)
def test_does_not_provide_sets_interface(self):
obj, mismatch = self.match_does_not_provide()
self.assertEqual(ITestInterface, mismatch.interface)
def match_does_not_verify(self):
class BadlyImplementedClass:
implements(ITestInterface)
obj = BadlyImplementedClass()
matcher = Provides(ITestInterface)
return obj, matcher.match(obj)
def test_mismatch_does_not_verify(self):
obj, mismatch = self.match_does_not_verify()
self.assertIsInstance(mismatch, DoesNotCorrectlyProvide)
def test_does_not_verify_sets_object(self):
obj, mismatch = self.match_does_not_verify()
self.assertEqual(obj, mismatch.obj)
def test_does_not_verify_sets_interface(self):
obj, mismatch = self.match_does_not_verify()
self.assertEqual(ITestInterface, mismatch.interface)
def test_does_not_verify_sets_extra(self):
obj, mismatch = self.match_does_not_verify()
try:
verifyObject(ITestInterface, obj)
self.assert_("verifyObject did not raise an exception.")
except BrokenImplementation, e:
extra = str(e)
self.assertEqual(extra, mismatch.extra)
class IsNotProxiedTests(TestCase):
def test_describe(self):
obj = object()
mismatch = IsNotProxied(obj)
self.assertEqual("%r is not proxied." % obj, mismatch.describe())
class IsProxiedTests(TestCase):
def test_str(self):
matcher = IsProxied()
self.assertEqual("Is proxied.", str(matcher))
def test_match(self):
obj = ProxyFactory(object(), checker=NamesChecker())
self.assertEqual(None, IsProxied().match(obj))
def test_mismatch(self):
obj = object()
self.assertIsInstance(IsProxied().match(obj), IsNotProxied)
def test_mismatch_sets_object(self):
obj = object()
mismatch = IsProxied().match(obj)
self.assertEqual(obj, mismatch.obj)
class ProvidesAndIsProxiedTests(TestCase):
def test_str(self):
matcher = ProvidesAndIsProxied(ITestInterface)
self.assertEqual(
"Provides %r and is proxied." % ITestInterface,
str(matcher))
def test_match(self):
obj = ProxyFactory(
Implementor(), checker=NamesChecker(names=("doFoo", )))
matcher = ProvidesAndIsProxied(ITestInterface)
self.assertThat(obj, matcher)
self.assertEqual(None, matcher.match(obj))
def test_mismatch_unproxied(self):
obj = Implementor()
matcher = ProvidesAndIsProxied(ITestInterface)
self.assertIsInstance(matcher.match(obj), IsNotProxied)
def test_mismatch_does_not_implement(self):
obj = ProxyFactory(object(), checker=NamesChecker())
matcher = ProvidesAndIsProxied(ITestInterface)
self.assertIsInstance(matcher.match(obj), DoesNotProvide)
class TestQueryMatching(TestCase):
"""Query matching is a work in progress and can be factored out more.
For now its pretty hard coded to the initial use case and overlaps some
unwritten hypothetical testtools infrastructure - e.g. permitting use of
attrgetter and the like.
"""
def test_match(self):
matcher = HasQueryCount(Is(3))
collector = QueryCollector()
collector.count = 3
# not inspected
del collector.queries
self.assertThat(matcher.match(collector), Is(None))
def test_mismatch(self):
matcher = HasQueryCount(LessThan(2))
collector = QueryCollector()
collector.count = 2
collector.queries = [("foo", "bar"), ("baaz", "quux")]
mismatch = matcher.match(collector)
self.assertThat(mismatch, Not(Is(None)))
details = mismatch.get_details()
lines = []
for name, content in details.items():
self.assertEqual("queries", name)
self.assertEqual("text", content.content_type.type)
lines.append(''.join(content.iter_text()))
self.assertEqual(["('foo', 'bar')\n('baaz', 'quux')"],
lines)
self.assertEqual(
"queries do not match: %s" % (LessThan(2).match(2).describe(),),
mismatch.describe())
class TestBrowserQueryMatching(TestCaseWithFactory):
layer = DatabaseFunctionalLayer
def test_smoke(self):
person = self.factory.makePerson()
matcher = BrowsesWithQueryLimit(100, person)
self.assertThat(person, matcher)
matcher = Not(BrowsesWithQueryLimit(1, person))
self.assertThat(person, matcher)
class DoesNotContainTests(TestCase):
def test_describe(self):
mismatch = DoesNotContain("foo", "bar")
self.assertEqual(
"'foo' does not contain 'bar'.", mismatch.describe())
class ContainsTests(TestCase):
def test_str(self):
matcher = Contains("bar")
self.assertEqual("Contains 'bar'.", str(matcher))
def test_match(self):
matcher = Contains("bar")
self.assertIs(None, matcher.match("foo bar baz"))
def test_mismatch_returns_does_not_start_with(self):
matcher = Contains("bar")
self.assertIsInstance(matcher.match("foo"), DoesNotContain)
def test_mismatch_sets_matchee(self):
matcher = Contains("bar")
mismatch = matcher.match("foo")
self.assertEqual("foo", mismatch.matchee)
def test_mismatch_sets_expected(self):
matcher = Contains("bar")
mismatch = matcher.match("foo")
self.assertEqual("bar", mismatch.expected)
class EqualsIgnoringWhitespaceTests(TestCase):
def test_str(self):
matcher = EqualsIgnoringWhitespace("abc")
self.assertEqual("EqualsIgnoringWhitespace('abc')", str(matcher))
def test_match_str(self):
matcher = EqualsIgnoringWhitespace("one \t two \n three")
self.assertIs(None, matcher.match(" one \r two three "))
def test_mismatch_str(self):
matcher = EqualsIgnoringWhitespace("one \t two \n three")
mismatch = matcher.match(" one \r three ")
self.assertEqual(
"'one two three' != 'one three'",
mismatch.describe())
def test_match_unicode(self):
matcher = EqualsIgnoringWhitespace(u"one \t two \n \u1234 ")
self.assertIs(None, matcher.match(u" one \r two \u1234 "))
def test_mismatch_unicode(self):
matcher = EqualsIgnoringWhitespace(u"one \t two \n \u1234 ")
mismatch = matcher.match(u" one \r \u1234 ")
self.assertEqual(
u"u'one two \\u1234' != u'one \\u1234'",
mismatch.describe())
def test_match_non_string(self):
matcher = EqualsIgnoringWhitespace(1234)
self.assertIs(None, matcher.match(1234))
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