Add equality test

Author: malthe

pendulum/tz/timezone.py

@@ -4,7 +4,7 @@
 
 from abc import ABC
 from abc import abstractmethod
-from typing import cast
+from typing import Any, cast
 
 from pendulum.tz.exceptions import AmbiguousTime
 from pendulum.tz.exceptions import InvalidTimezone
@@ -58,6 +58,9 @@ def __new__(cls, key: str) -> Timezone:
         except zoneinfo.ZoneInfoNotFoundError:
             raise InvalidTimezone(key)
 
+    def __eq__(self, other: Any) -> bool:
+        return isinstance(other, PendulumTimezone) and self.key == other.key
+
     @property
     def name(self) -> str:
         return self.key

tests/tz/test_timezone.py

@@ -41,6 +41,11 @@ def test_basic_convert():
     assert dt.tzinfo.dst(dt) == timedelta(seconds=3600)
 
 
+def test_equality():
+    assert timezone("Europe/Paris") == timezone("Europe/Paris")
+    assert timezone("Europe/Paris") != timezone("Europe/Berlin")
+
+
 def test_skipped_time_with_pre_rule():
     dt = datetime(2013, 3, 31, 2, 30, 45, 123456, fold=0)
     tz = timezone("Europe/Paris")