Improve tests

Closes: #1

matcher/utils.py

@@ -204,7 +204,7 @@ def format_wikibase_time(v: WikibaseTime) -> str | None:
         case 7:  # century
             century = ((int(t[:5]) - 1) // 100) + 1
             ordinal_num = num2words(abs(century), to="ordinal_num")
-            return f"{ordinal_num} {century}{' BC' if century < 0 else ''}"
+            return f"{ordinal_num} century{' BC' if century < 0 else ''}"
         case 6:  # millennium
             millennium = ((int(t[:5]) - 1) // 1000) + 1
             ordinal_num = num2words(abs(millennium), to="ordinal_num")

tests/test_utils.py

@@ -1,17 +1,30 @@
+"""Test matcher utils."""
+
 from matcher import utils
 
 
-def test_format_wikibase_time_year():
+def test_format_wikibase_time_year() -> None:
+    """Test passing a year to format_wikibase_time."""
     v = {"time": "+1950-00-00T00:00:00Z", "precision": 9}
     assert utils.format_wikibase_time(v) == "1950"
 
 
-def test_format_wikibase_time_century():
+def test_format_wikibase_time_century() -> None:
+    """Test passing centuries to format_wikibase_time."""
     v = {"time": "+0800-00-00T00:00:00Z", "precision": 7}
     assert utils.format_wikibase_time(v) == "8th century"
 
     v = {"time": "+1950-00-00T00:00:00Z", "precision": 7}
     assert utils.format_wikibase_time(v) == "20th century"
 
+
+def test_format_wikibase_time_decade() -> None:
+    """Test passing a full date to format_wikibase_time."""
+    v = {"time": "+1910-00-00T00:00:00Z", "precision": 8}
+    assert utils.format_wikibase_time(v) == "1910s"
+
+
+def test_format_wikibase_time_day() -> None:
+    """Test passing a full date to format_wikibase_time."""
     v = {"time": "+1868-01-09T00:00:00Z", "precision": 11}
     assert utils.format_wikibase_time(v) == "9 January 1868"