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path: root/test/mitmproxy/test_types_multidict.py
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from mitmproxy.test import tutils
from mitmproxy.types import multidict


class _TMulti:
    @staticmethod
    def _kconv(key):
        return key.lower()


class TMultiDict(_TMulti, multidict.MultiDict):
    pass


class TImmutableMultiDict(_TMulti, multidict.ImmutableMultiDict):
    pass


class TestMultiDict:
    @staticmethod
    def _multi():
        return TMultiDict((
            ("foo", "bar"),
            ("bar", "baz"),
            ("Bar", "bam")
        ))

    def test_init(self):
        md = TMultiDict()
        assert len(md) == 0

        md = TMultiDict([("foo", "bar")])
        assert len(md) == 1
        assert md.fields == (("foo", "bar"),)

    def test_repr(self):
        assert repr(self._multi()) == (
            "TMultiDict[('foo', 'bar'), ('bar', 'baz'), ('Bar', 'bam')]"
        )

    def test_getitem(self):
        md = TMultiDict([("foo", "bar")])
        assert "foo" in md
        assert "Foo" in md
        assert md["foo"] == "bar"

        with tutils.raises(KeyError):
            assert md["bar"]

        md_multi = TMultiDict(
            [("foo", "a"), ("foo", "b")]
        )
        assert md_multi["foo"] == "a"

    def test_setitem(self):
        md = TMultiDict()
        md["foo"] = "bar"
        assert md.fields == (("foo", "bar"),)

        md["foo"] = "baz"
        assert md.fields == (("foo", "baz"),)

        md["bar"] = "bam"
        assert md.fields == (("foo", "baz"), ("bar", "bam"))

    def test_delitem(self):
        md = self._multi()
        del md["foo"]
        assert "foo" not in md
        assert "bar" in md

        with tutils.raises(KeyError):
            del md["foo"]

        del md["bar"]
        assert md.fields == ()

    def test_iter(self):
        md = self._multi()
        assert list(md.__iter__()) == ["foo", "bar"]

    def test_len(self):
        md = TMultiDict()
        assert len(md) == 0

        md = self._multi()
        assert len(md) == 2

    def test_eq(self):
        assert TMultiDict() == TMultiDict()
        assert not (TMultiDict() == 42)

        md1 = self._multi()
        md2 = self._multi()
        assert md1 == md2
        md1.fields = md1.fields[1:] + md1.fields[:1]
        assert not (md1 == md2)

    def test_ne(self):
        assert not TMultiDict() != TMultiDict()
        assert TMultiDict() != self._multi()
        assert TMultiDict() != 42

    def test_hash(self):
        """
        If a class defines mutable objects and implements an __eq__() method,
        it should not implement __hash__(), since the implementation of hashable
        collections requires that a key's hash value is immutable.
        """
        with tutils.raises(TypeError):
            assert hash(TMultiDict())

    def test_get_all(self):
        md = self._multi()
        assert md.get_all("foo") == ["bar"]
        assert md.get_all("bar") == ["baz", "bam"]
        assert md.get_all("baz") == []

    def test_set_all(self):
        md = TMultiDict()
        md.set_all("foo", ["bar", "baz"])
        assert md.fields == (("foo", "bar"), ("foo", "baz"))

        md = TMultiDict((
            ("a", "b"),
            ("x", "x"),
            ("c", "d"),
            ("X", "X"),
            ("e", "f"),
        ))
        md.set_all("x", ["1", "2", "3"])
        assert md.fields == (
            ("a", "b"),
            ("x", "1"),
            ("c", "d"),
            ("X", "2"),
            ("e", "f"),
            ("x", "3"),
        )
        md.set_all("x", ["4"])
        assert md.fields == (
            ("a", "b"),
            ("x", "4"),
            ("c", "d"),
            ("e", "f"),
        )

    def test_add(self):
        md = self._multi()
        md.add("foo", "foo")
        assert md.fields == (
            ("foo", "bar"),
            ("bar", "baz"),
            ("Bar", "bam"),
            ("foo", "foo")
        )

    def test_insert(self):
        md = TMultiDict([("b", "b")])
        md.insert(0, "a", "a")
        md.insert(2, "c", "c")
        assert md.fields == (("a", "a"), ("b", "b"), ("c", "c"))

    def test_keys(self):
        md = self._multi()
        assert list(md.keys()) == ["foo", "bar"]
        assert list(md.keys(multi=True)) == ["foo", "bar", "Bar"]

    def test_values(self):
        md = self._multi()
        assert list(md.values()) == ["bar", "baz"]
        assert list(md.values(multi=True)) == ["bar", "baz", "bam"]

    def test_items(self):
        md = self._multi()
        assert list(md.items()) == [("foo", "bar"), ("bar", "baz")]
        assert list(md.items(multi=True)) == [("foo", "bar"), ("bar", "baz"), ("Bar", "bam")]

    def test_to_dict(self):
        md = self._multi()
        assert md.to_dict() == {
            "foo": "bar",
            "bar": ["baz", "bam"]
        }

    def test_state(self):
        md = self._multi()
        assert len(md.get_state()) == 3
        assert md == TMultiDict.from_state(md.get_state())

        md2 = TMultiDict()
        assert md != md2
        md2.set_state(md.get_state())
        assert md == md2


class TestImmutableMultiDict:
    def test_modify(self):
        md = TImmutableMultiDict()
        with tutils.raises(TypeError):
            md["foo"] = "bar"

        with tutils.raises(TypeError):
            del md["foo"]

        with tutils.raises(TypeError):
            md.add("foo", "bar")

    def test_hash(self):
        assert hash(TImmutableMultiDict())

    def test_with_delitem(self):
        md = TImmutableMultiDict([("foo", "bar")])
        assert md.with_delitem("foo").fields == ()
        assert md.fields == (("foo", "bar"),)

    def test_with_set_all(self):
        md = TImmutableMultiDict()
        assert md.with_set_all("foo", ["bar"]).fields == (("foo", "bar"),)
        assert md.fields == ()

    def test_with_insert(self):
        md = TImmutableMultiDict()
        assert md.with_insert(0, "foo", "bar").fields == (("foo", "bar"),)


class TParent:
    def __init__(self):
        self.vals = tuple()

    def setter(self, vals):
        self.vals = vals

    def getter(self):
        return self.vals


class TestMultiDictView:
    def test_modify(self):
        p = TParent()
        tv = multidict.MultiDictView(p.getter, p.setter)
        assert len(tv) == 0
        tv["a"] = "b"
        assert p.vals == (("a", "b"),)
        tv["c"] = "b"
        assert p.vals == (("a", "b"), ("c", "b"))
        assert tv["a"] == "b"