]> Cypherpunks.ru repositories - pyderasn.git/blobdiff - tests/test_pyderasn.py
Defaulted values are checked by default
[pyderasn.git] / tests / test_pyderasn.py
index 864c66bbbc847b6ed2ae573bedb4ce67e9d4ee66..c8321bb0d25116a2ea4320c2ff187bed8df54499 100644 (file)
@@ -77,6 +77,9 @@ from pyderasn import InvalidOID
 from pyderasn import InvalidValueType
 from pyderasn import len_decode
 from pyderasn import len_encode
+from pyderasn import LEN_YYMMDDHHMMSSZ
+from pyderasn import LEN_YYYYMMDDHHMMSSDMZ
+from pyderasn import LEN_YYYYMMDDHHMMSSZ
 from pyderasn import LENINDEF
 from pyderasn import NotEnoughData
 from pyderasn import Null
@@ -806,9 +809,19 @@ class TestInteger(CommonMixin, TestCase):
         with self.assertRaises(BoundsError) as err:
             Integer(value=values[0], bounds=(values[1], values[2]))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            Integer(bounds=(values[1], values[2])).decode(
+                Integer(values[0]).encode()
+            )
+        repr(err.exception)
         with self.assertRaises(BoundsError) as err:
             Integer(value=values[2], bounds=(values[0], values[1]))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            Integer(bounds=(values[0], values[1])).decode(
+                Integer(values[2]).encode()
+            )
+        repr(err.exception)
 
     @given(data_strategy())
     def test_call(self, d):
@@ -1759,10 +1772,20 @@ class TestOctetString(CommonMixin, TestCase):
         with self.assertRaises(BoundsError) as err:
             OctetString(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            OctetString(bounds=(bound_min, bound_max)).decode(
+                OctetString(value).encode()
+            )
+        repr(err.exception)
         value = d.draw(binary(min_size=bound_max + 1))
         with self.assertRaises(BoundsError) as err:
             OctetString(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            OctetString(bounds=(bound_min, bound_max)).decode(
+                OctetString(value).encode()
+            )
+        repr(err.exception)
 
     @given(data_strategy())
     def test_call(self, d):
@@ -2975,10 +2998,20 @@ class StringMixin(object):
         with self.assertRaises(BoundsError) as err:
             self.base_klass(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            self.base_klass(bounds=(bound_min, bound_max)).decode(
+                self.base_klass(value).encode()
+            )
+        repr(err.exception)
         value = d.draw(text(alphabet=self.text_alphabet(), min_size=bound_max + 1))
         with self.assertRaises(BoundsError) as err:
             self.base_klass(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            self.base_klass(bounds=(bound_min, bound_max)).decode(
+                self.base_klass(value).encode()
+            )
+        repr(err.exception)
 
     @given(data_strategy())
     def test_call(self, d):
@@ -3609,6 +3642,48 @@ class TestGeneralizedTime(TimeMixin, CommonMixin, TestCase):
             datetime(2010, 1, 2, 3, 4, 5, 0),
         )
 
+    @given(
+        binary(
+            min_size=(LEN_YYYYMMDDHHMMSSZ - 1) // 2,
+            max_size=(LEN_YYYYMMDDHHMMSSZ - 1) // 2,
+        ),
+        binary(min_size=1, max_size=1),
+        binary(
+            min_size=(LEN_YYYYMMDDHHMMSSZ - 1) // 2,
+            max_size=(LEN_YYYYMMDDHHMMSSZ - 1) // 2,
+        ),
+    )
+    def test_junk(self, part0, part1, part2):
+        junk = part0 + part1 + part2
+        assume(not (set(junk) <= set(digits.encode("ascii"))))
+        with self.assertRaises(DecodeError):
+            GeneralizedTime().decode(
+                GeneralizedTime.tag_default +
+                len_encode(len(junk)) +
+                junk
+            )
+
+    @given(
+        binary(
+            min_size=(LEN_YYYYMMDDHHMMSSDMZ - 1) // 2,
+            max_size=(LEN_YYYYMMDDHHMMSSDMZ - 1) // 2,
+        ),
+        binary(min_size=1, max_size=1),
+        binary(
+            min_size=(LEN_YYYYMMDDHHMMSSDMZ - 1) // 2,
+            max_size=(LEN_YYYYMMDDHHMMSSDMZ - 1) // 2,
+        ),
+    )
+    def test_junk_dm(self, part0, part1, part2):
+        junk = part0 + part1 + part2
+        assume(not (set(junk) <= set(digits.encode("ascii"))))
+        with self.assertRaises(DecodeError):
+            GeneralizedTime().decode(
+                GeneralizedTime.tag_default +
+                len_encode(len(junk)) +
+                junk
+            )
+
 
 class TestUTCTime(TimeMixin, CommonMixin, TestCase):
     base_klass = UTCTime
@@ -3673,6 +3748,27 @@ class TestUTCTime(TimeMixin, CommonMixin, TestCase):
             1900 + year,
         )
 
+    @given(
+        binary(
+            min_size=(LEN_YYMMDDHHMMSSZ - 1) // 2,
+            max_size=(LEN_YYMMDDHHMMSSZ - 1) // 2,
+        ),
+        binary(min_size=1, max_size=1),
+        binary(
+            min_size=(LEN_YYMMDDHHMMSSZ - 1) // 2,
+            max_size=(LEN_YYMMDDHHMMSSZ - 1) // 2,
+        ),
+    )
+    def test_junk(self, part0, part1, part2):
+        junk = part0 + part1 + part2
+        assume(not (set(junk) <= set(digits.encode("ascii"))))
+        with self.assertRaises(DecodeError):
+            UTCTime().decode(
+                UTCTime.tag_default +
+                len_encode(len(junk)) +
+                junk
+            )
+
 
 @composite
 def any_values_strategy(draw, do_expl=False):
@@ -4653,6 +4749,7 @@ class SeqMixing(object):
         seq_encoded = seq.encode()
         seq_decoded, tail = seq.decode(seq_encoded + tail_junk)
         self.assertFalse(seq_decoded.lenindef)
+        self.assertFalse(seq_decoded.bered)
 
         t, _, lv = tag_strip(seq_encoded)
         _, _, v = len_decode(lv)
@@ -4744,7 +4841,7 @@ class SeqMixing(object):
         self.assertSequenceEqual(seq.encode(), empty_seq)
 
     @given(data_strategy())
-    def test_encoded_default_accepted(self, d):
+    def test_encoded_default_not_accepted(self, d):
         _schema = list(d.draw(dictionaries(
             text_letters(),
             integers(),
@@ -4772,10 +4869,14 @@ class SeqMixing(object):
                 for (n, v), t in zip(_schema, tags)
             ]
         seq_with_default = SeqWithDefault()
-        seq_decoded, _ = seq_with_default.decode(seq_encoded)
-        for name, value in _schema:
-            self.assertEqual(seq_decoded[name], seq_with_default[name])
-            self.assertEqual(seq_decoded[name], value)
+        with assertRaisesRegex(self, DecodeError, "DEFAULT value met"):
+            seq_with_default.decode(seq_encoded)
+        for ctx in ({"bered": True}, {"allow_default_values": True}):
+            seq_decoded, _ = seq_with_default.decode(seq_encoded, ctx=ctx)
+            self.assertTrue(seq_decoded.bered)
+            for name, value in _schema:
+                self.assertEqual(seq_decoded[name], seq_with_default[name])
+                self.assertEqual(seq_decoded[name], value)
 
     @given(data_strategy())
     def test_missing_from_spec(self, d):
@@ -5014,17 +5115,27 @@ class SeqOfMixing(object):
             schema = Boolean()
         bound_min = d.draw(integers(min_value=1, max_value=1 << 7))
         bound_max = d.draw(integers(min_value=bound_min, max_value=1 << 7))
-        value = [Boolean()] * d.draw(integers(max_value=bound_min - 1))
+        value = [Boolean(False)] * d.draw(integers(max_value=bound_min - 1))
         with self.assertRaises(BoundsError) as err:
             SeqOf(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
-        value = [Boolean()] * d.draw(integers(
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            SeqOf(bounds=(bound_min, bound_max)).decode(
+                SeqOf(value).encode()
+            )
+        repr(err.exception)
+        value = [Boolean(True)] * d.draw(integers(
             min_value=bound_max + 1,
             max_value=bound_max + 10,
         ))
         with self.assertRaises(BoundsError) as err:
             SeqOf(value=value, bounds=(bound_min, bound_max))
         repr(err.exception)
+        with assertRaisesRegex(self, DecodeError, "bounds") as err:
+            SeqOf(bounds=(bound_min, bound_max)).decode(
+                SeqOf(value).encode()
+            )
+        repr(err.exception)
 
     @given(integers(min_value=1, max_value=10))
     def test_out_of_bounds(self, bound_max):
@@ -5765,18 +5876,21 @@ class TestStrictDefaultExistence(TestCase):
             ("int%d" % i, Integer(expl=tag_ctxc(i + 1)))
             for i in range(count)
         ]
-
-        class Seq(Sequence):
-            schema = _schema
-        seq = Seq()
-        for i in range(count):
-            seq["int%d" % i] = Integer(123)
-        raw = seq.encode()
-        chosen = "int%d" % chosen
-        seq.specs[chosen] = seq.specs[chosen](default=123)
-        seq.decode(raw)
-        with assertRaisesRegex(self, DecodeError, "DEFAULT value met"):
-            seq.decode(raw, ctx={"strict_default_existence": True})
+        for klass in (Sequence, Set):
+            class Seq(klass):
+                schema = _schema
+            seq = Seq()
+            for i in range(count):
+                seq["int%d" % i] = Integer(123)
+            raw = seq.encode()
+            chosen_choice = "int%d" % chosen
+            seq.specs[chosen_choice] = seq.specs[chosen_choice](default=123)
+            with assertRaisesRegex(self, DecodeError, "DEFAULT value met"):
+                seq.decode(raw)
+            decoded, _ = seq.decode(raw, ctx={"allow_default_values": True})
+            self.assertTrue(decoded.bered)
+            decoded, _ = seq.decode(raw, ctx={"bered": True})
+            self.assertTrue(decoded.bered)
 
 
 class TestX690PrefixedType(TestCase):
@@ -5816,3 +5930,13 @@ class TestX690PrefixedType(TestCase):
             VisibleString("Jones", impl=tag_ctxp(2)).encode(),
             hexdec("82054A6F6E6573"),
         )
+
+
+class TestExplOOB(TestCase):
+    def runTest(self):
+        expl = tag_ctxc(123)
+        raw = Integer(123).encode() + Integer(234).encode()
+        raw = b"".join((expl, len_encode(len(raw)), raw))
+        with assertRaisesRegex(self, DecodeError, "explicit tag out-of-bound"):
+            Integer(expl=expl).decode(raw)
+        Integer(expl=expl).decode(raw, ctx={"allow_expl_oob": True})