Don't allow single character prefixes to produce a match

categorize/match/match.go

@@ -18,7 +18,9 @@ func FindBestMatch(candidate string, index []string) (string, error) {
 	haveCommonPrefix := []string{}
 	for _, indexEntry := range index {
 		prefix := getLongestCommonPrefix(candidate, indexEntry)
-		if len(prefix) > 0 {
+		// Single character prefixes aren't that helpful.
+		// I don't want to get into threshold territory by playing with a number higher than this, though
+		if len(prefix) > 1 {
 			haveCommonPrefix = append(haveCommonPrefix, indexEntry)
 		}
 	}

categorize/match/match_test.go

@@ -71,6 +71,13 @@ func TestFindBestMatch(t *testing.T) {
 			expectedMatch: "",
 			expectedError: ErrNoMatches,
 		},
+		{
+			// This has the common prefix of "s" but we don't actually really care about a prefix like that
+			candidate:     "super-weird",
+			index:         []string{"something-odd", "nothing"},
+			expectedMatch: "",
+			expectedError: ErrNoMatches,
+		},
 	}
 
 	for _, test := range tt {

categorize/tv_test.go

@@ -39,6 +39,13 @@ func TestFindBestFolder(t *testing.T) {
 			"",
 			match.ErrNoMatches,
 		},
+		{
+			"Does not use single-character prefixes as a reference",
+			"SpongeBob.SquarePants.S03.iT.WEB-DL.AAC2.0.H.264-NOGR",
+			[]string{"The-Good-Place", "Stranger-Things", "Brooklyn-Nine-Nine", "The-IT-Crowd"},
+			"",
+			match.ErrNoMatches,
+		},
 	}
 
 	for _, test := range table {