Use better regex for IPv6 to allow a lot more valid IPv6 addresses (#753)

* Use better regex for IPv6 to allow a lot more valid IPv6 addresses

* Adding some unit tests for is_absolute_uri in uri_validate

* Make unit tests Python 3.6 compatible

* Remove redundant import after unit test simplification for py36

* update Changelog

* Remove redundant coding line

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/test_uri_validate.py b/tests/test_uri_validate.py
new file mode 100644
index 0000000..3489d95
--- /dev/null
+++ b/tests/test_uri_validate.py
@@ -0,0 +1,33 @@
+import oauthlib
+from oauthlib.uri_validate import is_absolute_uri
+
+from tests.unittest import TestCase
+
+
+class UriValidateTest(TestCase):
+
+    def test_is_absolute_uri(self):
+
+        self.assertIsNotNone(is_absolute_uri('schema://example.com/path'))
+        self.assertIsNotNone(is_absolute_uri('https://example.com/path'))
+        self.assertIsNotNone(is_absolute_uri('https://example.com'))
+        self.assertIsNotNone(is_absolute_uri('https://example.com:443/path'))
+        self.assertIsNotNone(is_absolute_uri('https://example.com:443/'))
+        self.assertIsNotNone(is_absolute_uri('https://example.com:443'))
+        self.assertIsNotNone(is_absolute_uri('http://example.com'))
+        self.assertIsNotNone(is_absolute_uri('http://example.com/path'))
+        self.assertIsNotNone(is_absolute_uri('http://example.com:80/path'))
+        self.assertIsNotNone(is_absolute_uri('com.example.bundle.id:/'))
+        self.assertIsNotNone(is_absolute_uri('http://[::1]:38432/path'))
+        self.assertIsNotNone(is_absolute_uri('http://[::1]/path'))
+        self.assertIsNotNone(is_absolute_uri('http://[fd01:0001::1]/path'))
+        self.assertIsNotNone(is_absolute_uri('http://[fd01:1::1]/path'))
+        self.assertIsNotNone(is_absolute_uri('http://[0123:4567:89ab:cdef:0123:4567:89ab:cdef]/path'))
+        self.assertIsNotNone(is_absolute_uri('http://127.0.0.1:38432/'))
+        self.assertIsNotNone(is_absolute_uri('http://127.0.0.1:38432/'))
+        self.assertIsNotNone(is_absolute_uri('http://127.1:38432/'))
+
+        self.assertIsNone(is_absolute_uri('http://example.com:notaport/path'))
+        self.assertIsNone(is_absolute_uri('wrong'))
+        self.assertIsNone(is_absolute_uri('http://[:1]:38432/path'))
+        self.assertIsNone(is_absolute_uri('http://[abcd:efgh::1]/'))