1 files changed, 42 insertions, 0 deletions
diff --git a/datamaps/tests/test_month.py b/datamaps/tests/test_month.py
new file mode 100644
index 0000000..de53545
--- /dev/null
+++ b/datamaps/tests/test_month.py
@@ -0,0 +1,42 @@
+import datetime
+
+import pytest
+
+from ..core.temporal import Month, Quarter
+
+
+def test_quarter_month_objects_leap_years():
+    q = Quarter(4, 2023)
+    assert q.months[1].start_date == datetime.date(2024, 2, 1)
+    assert q.months[1].end_date == datetime.date(2024, 2, 29)
+
+
+def test_quarter_objects_have_months():
+    q = Quarter(1, 2021)
+    q2 = Quarter(4, 2021)
+    assert isinstance(q.months[0], Month)
+    assert q.months[0].start_date == datetime.date(2021, 4, 1)
+    assert q.months[1].start_date == datetime.date(2021, 5, 1)
+    assert q.months[2].start_date == datetime.date(2021, 6, 1)
+    with pytest.raises(IndexError):
+        q.months[4].start_date == datetime.date(2021, 6, 1)
+    assert q2.months[0].start_date == datetime.date(2022, 1, 1)
+    assert q2.months[1].start_date == datetime.date(2022, 2, 1)
+    assert q2.months[2].start_date == datetime.date(2022, 3, 1)
+    with pytest.raises(IndexError):
+        q2.months[4].start_date == datetime.date(2022, 6, 1)
+
+
+def test_month():
+    m1 = Month(1, 2021)
+    assert m1.name == "January"
+    assert m1.year == 2021
+    m2 = Month(9, 2021)
+    assert m2.name == "September"
+    assert m2.start_date == datetime.date(2021, 9, 1)
+    assert m2.end_date == datetime.date(2021, 9, 30)
+    # test leap year
+    m3 = Month(2, 2024)
+    m4 = Month(2, 2028)
+    assert m3.end_date == datetime.date(2024, 2, 29)
+    assert m4.end_date == datetime.date(2028, 2, 29)