tests

src/textual/fuzzy.py

@@ -123,7 +123,7 @@ def score(search: _Search) -> float:
                 (2.0 if offset in first_letters else 1.0) for offset in search.offsets
             )
             # Divide by the number of groups
-            # 1 group no change, 2 groups score is halved etc
+            # 1 group no change, 2 groups score is halved etc.
             score /= search.groups
             return score
 

tests/test_fuzzy.py

@@ -4,28 +4,20 @@
 from textual.fuzzy import Matcher
 
 
-def test_match():
-    matcher = Matcher("foo.bar")
-
-    # No match
-    assert matcher.match("egg") == 0
-    assert matcher.match("") == 0
-
-    # Perfect match
-    assert matcher.match("foo.bar") == 1.0
-    # Perfect match (with superfluous characters)
-    assert matcher.match("foo.bar sdf") == 1.0
-    assert matcher.match("xz foo.bar sdf") == 1.0
+def test_no_match():
+    """Check non matching score of zero."""
+    matcher = Matcher("x")
+    assert matcher.match("foo") == 0
 
-    # Partial matches
-    # 2 Groups
-    assert matcher.match("foo egg.bar") == 1.0 - 1 / 11
 
-    # 3 Groups
-    assert matcher.match("foo .ba egg r") == 1.0 - 2 / 13
+def test_match_single_group():
+    """Check that single groups rang higher."""
+    matcher = Matcher("abc")
+    assert matcher.match("foo abc bar") > matcher.match("fooa barc")
 
 
 def test_boosted_matches():
+    """Check first word matchers rank higher."""
     matcher = Matcher("ss")
 
     # First word matchers should score higher