1 files changed, 54 insertions, 0 deletions
diff --git a/tests/interval/test_behavior.py b/tests/interval/test_behavior.py
new file mode 100644
index 0000000..b5e057a
--- /dev/null
+++ b/tests/interval/test_behavior.py
@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+import pickle
+
+from datetime import timedelta
+
+import pendulum
+
+
+def test_pickle():
+    dt1 = pendulum.datetime(2016, 11, 18)
+    dt2 = pendulum.datetime(2016, 11, 20)
+
+    p = pendulum.interval(dt1, dt2)
+    s = pickle.dumps(p)
+    p2 = pickle.loads(s)
+
+    assert p.start == p2.start
+    assert p.end == p2.end
+    assert p.invert == p2.invert
+
+    p = pendulum.interval(dt2, dt1)
+    s = pickle.dumps(p)
+    p2 = pickle.loads(s)
+
+    assert p.start == p2.start
+    assert p.end == p2.end
+    assert p.invert == p2.invert
+
+    p = pendulum.interval(dt2, dt1, True)
+    s = pickle.dumps(p)
+    p2 = pickle.loads(s)
+
+    assert p.start == p2.start
+    assert p.end == p2.end
+    assert p.invert == p2.invert
+
+
+def test_comparison_to_timedelta():
+    dt1 = pendulum.datetime(2016, 11, 18)
+    dt2 = pendulum.datetime(2016, 11, 20)
+
+    period = dt2 - dt1
+
+    assert period < timedelta(days=4)
+
+
+def test_equality_to_timedelta():
+    dt1 = pendulum.datetime(2016, 11, 18)
+    dt2 = pendulum.datetime(2016, 11, 20)
+
+    period = dt2 - dt1
+
+    assert period == timedelta(days=2)