tests/test_cachecontrol.py

import pytest


def test_cache_control_object_max_age_None():
    from webob.cachecontrol import CacheControl

    cc = CacheControl({}, "a")
    cc.properties["max-age"] = None
    assert cc.max_age == -1


class TestUpdateDict(object):
    def setup_method(self, method):
        self.call_queue = []

        def callback(args):
            self.call_queue.append("Called with: %s" % repr(args))

        self.callback = callback

    def make_one(self, callback):
        from webob.cachecontrol import UpdateDict

        ud = UpdateDict()
        ud.updated = callback
        return ud

    def test_clear(self):
        newone = self.make_one(self.callback)
        newone["first"] = 1
        assert len(newone) == 1
        newone.clear()
        assert len(newone) == 0

    def test_update(self):
        newone = self.make_one(self.callback)
        d = {"one": 1}
        newone.update(d)
        assert newone == d

    def test_set_delete(self):
        newone = self.make_one(self.callback)
        newone["first"] = 1
        assert len(self.call_queue) == 1
        assert self.call_queue[-1] == "Called with: {'first': 1}"

        del newone["first"]
        assert len(self.call_queue) == 2
        assert self.call_queue[-1] == "Called with: {}"

    def test_setdefault(self):
        newone = self.make_one(self.callback)
        assert newone.setdefault("haters", "gonna-hate") == "gonna-hate"
        assert len(self.call_queue) == 1
        assert self.call_queue[-1] == "Called with: {'haters': 'gonna-hate'}"

        # no effect if failobj is not set
        assert newone.setdefault("haters", "gonna-love") == "gonna-hate"
        assert len(self.call_queue) == 1

    def test_pop(self):
        newone = self.make_one(self.callback)
        newone["first"] = 1
        newone.pop("first")
        assert len(self.call_queue) == 2
        assert self.call_queue[-1] == "Called with: {}", self.call_queue[-1]

    def test_popitem(self):
        newone = self.make_one(self.callback)
        newone["first"] = 1
        assert newone.popitem() == ("first", 1)
        assert len(self.call_queue) == 2
        assert self.call_queue[-1] == "Called with: {}", self.call_queue[-1]


class TestExistProp(object):
    """
    Test webob.cachecontrol.exists_property
    """

    def setUp(self):
        pass

    def make_one(self):
        from webob.cachecontrol import exists_property

        class Dummy(object):
            properties = dict(prop=1)
            type = "dummy"
            prop = exists_property("prop", "dummy")
            badprop = exists_property("badprop", "big_dummy")

        return Dummy

    def test_get_on_class(self):
        from webob.cachecontrol import exists_property

        Dummy = self.make_one()
        assert isinstance(Dummy.prop, exists_property), Dummy.prop

    def test_get_on_instance(self):
        obj = self.make_one()()
        assert obj.prop is True

    def test_type_mismatch_raise(self):
        with pytest.raises(AttributeError):
            obj = self.make_one()()
            obj.badprop = True

    def test_set_w_value(self):
        obj = self.make_one()()
        obj.prop = True
        assert obj.prop is True
        assert obj.properties["prop"] is None

    def test_del_value(self):
        obj = self.make_one()()
        del obj.prop
        assert "prop" not in obj.properties


class TestValueProp(object):
    """
    Test webob.cachecontrol.exists_property
    """

    def setUp(self):
        pass

    def make_one(self):
        from webob.cachecontrol import value_property

        class Dummy(object):
            properties = dict(prop=1)
            type = "dummy"
            prop = value_property("prop", "dummy")
            badprop = value_property("badprop", "big_dummy")

        return Dummy

    def test_get_on_class(self):
        from webob.cachecontrol import value_property

        Dummy = self.make_one()
        assert isinstance(Dummy.prop, value_property), Dummy.prop

    def test_get_on_instance(self):
        dummy = self.make_one()()
        assert dummy.prop, dummy.prop

    def test_set_on_instance(self):
        dummy = self.make_one()()
        dummy.prop = "new"
        assert dummy.prop == "new", dummy.prop
        assert dummy.properties["prop"] == "new", dict(dummy.properties)

    def test_set_on_instance_bad_attribute(self):
        dummy = self.make_one()()
        dummy.prop = "new"
        assert dummy.prop == "new", dummy.prop
        assert dummy.properties["prop"] == "new", dict(dummy.properties)

    def test_set_wrong_type(self):
        from webob.cachecontrol import value_property

        class Dummy(object):
            properties = dict(prop=1, type="fail")
            type = "dummy"
            prop = value_property("prop", "dummy", type="failingtype")

        dummy = Dummy()

        def assign():
            dummy.prop = "foo"

        with pytest.raises(AttributeError):
            assign()

    def test_set_type_true(self):
        dummy = self.make_one()()
        dummy.prop = True
        assert dummy.prop is None

    def test_set_on_instance_w_default(self):
        dummy = self.make_one()()
        dummy.prop = "dummy"
        assert dummy.prop == "dummy"
        # TODO: this probably needs more tests

    def test_del(self):
        dummy = self.make_one()()
        dummy.prop = "Ian Bicking likes to skip"
        del dummy.prop
        assert dummy.prop == "dummy"


def test_copy_cc():
    from webob.cachecontrol import CacheControl

    cc = CacheControl({"header": "%", "msg": "arewerichyet?"}, "request")
    cc2 = cc.copy()
    assert cc.properties is not cc2.properties
    assert cc.type is cc2.type


def test_serialize_cache_control_emptydict():
    from webob.cachecontrol import serialize_cache_control

    result = serialize_cache_control(dict())
    assert result == ""


def test_serialize_cache_control_cache_control_object():
    from webob.cachecontrol import serialize_cache_control, CacheControl

    result = serialize_cache_control(CacheControl({}, "request"))
    assert result == ""


def test_serialize_cache_control_object_with_headers():
    from webob.cachecontrol import serialize_cache_control, CacheControl

    result = serialize_cache_control(CacheControl({"header": "a"}, "request"))
    assert result == "header=a"


def test_serialize_cache_control_value_is_None():
    from webob.cachecontrol import serialize_cache_control, CacheControl

    result = serialize_cache_control(CacheControl({"header": None}, "request"))
    assert result == "header"


def test_serialize_cache_control_value_needs_quote():
    from webob.cachecontrol import serialize_cache_control, CacheControl

    result = serialize_cache_control(CacheControl({"header": '""'}, "request"))
    assert result == 'header=""""'


class TestCacheControl(object):
    def make_one(self, props, typ):
        from webob.cachecontrol import CacheControl

        return CacheControl(props, typ)

    def test_ctor(self):
        cc = self.make_one({"a": 1}, "typ")
        assert cc.properties == {"a": 1}
        assert cc.type == "typ"

    def test_parse(self):
        from webob.cachecontrol import CacheControl

        cc = CacheControl.parse("public, max-age=315360000")
        assert type(cc) == CacheControl
        assert cc.max_age == 315360000
        assert cc.public is True

    def test_parse_updates_to(self):
        from webob.cachecontrol import CacheControl

        def foo(arg):
            return {"a": 1}

        cc = CacheControl.parse("public, max-age=315360000", updates_to=foo)
        assert type(cc) == CacheControl
        assert cc.max_age == 315360000

    def test_parse_valueerror_int(self):
        from webob.cachecontrol import CacheControl

        def foo(arg):
            return {"a": 1}

        cc = CacheControl.parse("public, max-age=abc")
        assert type(cc) == CacheControl
        assert cc.max_age == "abc"

    def test_repr(self):
        cc = self.make_one({"a": "1"}, "typ")
        assert repr(cc) == "<CacheControl 'a=1'>"