TST: move easter to own file and parameterize (#27085) (#42990)

Author: felixDulys

pandas/tests/tseries/offsets/test_easter.py

@@ -0,0 +1,36 @@
+"""
+Tests for the following offsets:
+- Easter
+"""
+from __future__ import annotations
+
+from datetime import datetime
+
+import pytest
+
+from pandas.tests.tseries.offsets.common import (
+    Base,
+    assert_offset_equal,
+)
+
+from pandas.tseries.offsets import Easter
+
+
+class TestEaster(Base):
+    @pytest.mark.parametrize(
+        "offset,date,expected",
+        [
+            (Easter(), datetime(2010, 1, 1), datetime(2010, 4, 4)),
+            (Easter(), datetime(2010, 4, 5), datetime(2011, 4, 24)),
+            (Easter(2), datetime(2010, 1, 1), datetime(2011, 4, 24)),
+            (Easter(), datetime(2010, 4, 4), datetime(2011, 4, 24)),
+            (Easter(2), datetime(2010, 4, 4), datetime(2012, 4, 8)),
+            (-Easter(), datetime(2011, 1, 1), datetime(2010, 4, 4)),
+            (-Easter(), datetime(2010, 4, 5), datetime(2010, 4, 4)),
+            (-Easter(2), datetime(2011, 1, 1), datetime(2009, 4, 12)),
+            (-Easter(), datetime(2010, 4, 4), datetime(2009, 4, 12)),
+            (-Easter(2), datetime(2010, 4, 4), datetime(2008, 3, 23)),
+        ],
+    )
+    def test_offset(self, offset, date, expected):
+        assert_offset_equal(offset, date, expected)

pandas/tests/tseries/offsets/test_offsets.py

@@ -36,7 +36,6 @@
 from pandas.tests.tseries.offsets.common import (
     Base,
     WeekDay,
-    assert_offset_equal,
 )
 
 import pandas.tseries.offsets as offsets
@@ -564,22 +563,6 @@ def test_eq(self):
         assert offset1 != offset2
 
 
-def test_Easter():
-    assert_offset_equal(Easter(), datetime(2010, 1, 1), datetime(2010, 4, 4))
-    assert_offset_equal(Easter(), datetime(2010, 4, 5), datetime(2011, 4, 24))
-    assert_offset_equal(Easter(2), datetime(2010, 1, 1), datetime(2011, 4, 24))
-
-    assert_offset_equal(Easter(), datetime(2010, 4, 4), datetime(2011, 4, 24))
-    assert_offset_equal(Easter(2), datetime(2010, 4, 4), datetime(2012, 4, 8))
-
-    assert_offset_equal(-Easter(), datetime(2011, 1, 1), datetime(2010, 4, 4))
-    assert_offset_equal(-Easter(), datetime(2010, 4, 5), datetime(2010, 4, 4))
-    assert_offset_equal(-Easter(2), datetime(2011, 1, 1), datetime(2009, 4, 12))
-
-    assert_offset_equal(-Easter(), datetime(2010, 4, 4), datetime(2009, 4, 12))
-    assert_offset_equal(-Easter(2), datetime(2010, 4, 4), datetime(2008, 3, 23))
-
-
 class TestOffsetNames:
     def test_get_offset_name(self):
         assert BDay().freqstr == "B"