gather tests in tests directory

Author: rettinghaus

edtf/tests.py tests/test_edtf.pyedtf/tests.py renamed to tests/test_edtf.py

@@ -0,0 +1,51 @@
+# ruff: noqa: S101 # Asserts are ok in tests
+
+import pytest
+
+from edtf.natlang.en import text_to_edtf
+
+
+@pytest.mark.parametrize(
+    "input_text,expected_output",
+    [
+        ("active late 17th-19th centuries", "16XX/18XX"),
+        ("active 17-19th Centuries", "16XX/18XX"),
+        ("", None),
+        ("this isn't a date", None),
+        ("23rd Dynasty", None),
+        ("90", "1990"),
+        ("1860", "1860"),
+        ("the year 1800", "1800"),
+        ("January 2008", "2008-01"),
+        ("January 12, 1940", "1940-01-12"),
+        ("1860?", "1860?"),
+        ("1862 (uncertain)", "1862?"),
+        ("maybe 1862", "1862?"),
+        ("~ Feb 1812", "1812-02~"),
+        ("c1860", "1860~"),
+        ("c.1860", "1860~"),
+        ("c 1860", "1860~"),
+        ("1860s", "186X"),
+        ("ca. 1860s", "186X~"),
+        ("January 12", "XXXX-01-12"),
+        ("January", "XXXX-01"),
+        ("10/7/2008", "2008-10-07"),
+        ("7/2008", "2008-07"),
+        ("Spring 1872", "1872-21"),
+        ("Summer 1872", "1872-22"),
+        ("Autumn 1872", "1872-23"),
+        ("Winter 1872", "1872-24"),
+        ("earlier than 1928", "/1928"),
+        ("before 1928", "/1928"),
+        ("after 1928", "1928/"),
+        ("before January 1928", "/1928-01"),
+        ("after approx January 1928", "1928-01~/"),
+        ("2nd century bc", "-01XX"),
+        ("1 AD", "0001"),
+    ],
+)
+def test_natlang(input_text, expected_output):
+    result = text_to_edtf(input_text)
+    assert result == expected_output, (
+        f"Failed for input: {input_text} - expected {expected_output}, got {result}"
+    )