1 files changed, 23 insertions, 0 deletions
diff --git a/tests/incite/test_interval_idx.py b/tests/incite/test_interval_idx.py
new file mode 100644
index 0000000..ea2bced
--- /dev/null
+++ b/tests/incite/test_interval_idx.py
@@ -0,0 +1,23 @@
+import pandas as pd
+from datetime import datetime, timezone, timedelta
+
+
+class TestIntervalIndex:
+
+    def test_init(self):
+        start = datetime(year=2000, month=1, day=1)
+        end = datetime(year=2000, month=1, day=10)
+
+        iv_r: pd.IntervalIndex = pd.interval_range(
+            start=start, end=end, freq="1d", closed="left"
+        )
+        assert isinstance(iv_r, pd.IntervalIndex)
+        assert len(iv_r.to_list()) == 9
+
+        # If the offset is longer than the end - start it will not
+        #   error. It will simply have 0 rows.
+        iv_r: pd.IntervalIndex = pd.interval_range(
+            start=start, end=end, freq="30d", closed="left"
+        )
+        assert isinstance(iv_r, pd.IntervalIndex)
+        assert len(iv_r.to_list()) == 0