Add regression tests for date parser overflow

tests/test_recipe_overflow.py

@@ -0,0 +1,24 @@
+import pytest
+
+from sqlite_utils import recipes
+
+
+OVERFLOWING_DATE = "999999999999999999999999999999-01-01"
+
+
+@pytest.mark.parametrize("fn", ("parsedate", "parsedatetime"))
+def test_dateparse_overflow_raises_by_default(fn):
+    with pytest.raises(OverflowError):
+        getattr(recipes, fn)(OVERFLOWING_DATE)
+
+
+@pytest.mark.parametrize("fn", ("parsedate", "parsedatetime"))
+@pytest.mark.parametrize(
+    "errors,expected",
+    (
+        (recipes.IGNORE, OVERFLOWING_DATE),
+        (recipes.SET_NULL, None),
+    ),
+)
+def test_dateparse_overflow_respects_errors(fn, errors, expected):
+    assert getattr(recipes, fn)(OVERFLOWING_DATE, errors=errors) == expected