false positives

README.md

@@ -42,6 +42,3 @@ Instead, the following steps are taken before checking for profanities in a stri
 The upside of this method is that we only need to add base bad words, and not all tenses of said bad word.
 
 e.g. the `fuck` entry would support `fucker`, `fucking`, etc)
-
-The downside is that words like `assassin`, which contain `ass`, would also be filtered as profane.
-So in the future, a list of false positives would have to be added.

falsePositives.go

@@ -0,0 +1,35 @@
+package goaway
+
+var falsePositives = []string{
+	"Scuntthorpe",
+	"scuntthorpe",
+	"associate",
+	"assassin",
+	"bass",
+	"class",
+	"compass",
+	"surpass",
+	"canvass",
+	"glass",
+	"lass",
+	"grass",
+	"mass",
+	"pass",
+	"Penistone",
+	"clitheroe",
+	"horniman",
+	"shitake",
+	"sussex",
+	"cockburn",
+	"libshitz",
+	"magna cum laude",
+	"Super Bowl XXX",
+	"evaluate",
+	"mocha",
+	"expression",
+	"Arsenal",
+	"classic",
+	"Tyson Gay",
+	"Dick Van Dyke",
+	"basement",
+}

goaway.go

@@ -14,6 +14,9 @@ const Space = " "
 // Returns a boolean
 func IsProfane(s string) bool {
 	s = strings.Replace(sanitize(s), Space, "", -1) // Sanitize leetspeak AND remove all spaces
+	for _, falsePositive := range falsePositives {
+		s = strings.Replace(s, falsePositive, "", -1)
+	}
 	for _, word := range profanities {
 		if match := strings.Contains(s, word); match {
 			return true

goaway_test.go

@@ -67,3 +67,21 @@ func TestSentencesWithNoProfanities(t *testing.T) {
 		}
 	}
 }
+
+func TestSentencesWithFalsePositives(t *testing.T) {
+	sentences := []string{"I am from Scuntthorpe, north Lincolnshire", "He is an associate of mine"}
+	for _, s := range sentences {
+		if goaway.IsProfane(s) {
+			t.Error("Expected false, got true from sentence", s)
+		}
+	}
+}
+
+func TestSentencesWithFalsePositivesAndProfanities(t *testing.T) {
+	sentences := []string{"You are a shitty associate", "Go back to Scuntthorpe, Asshole!"}
+	for _, s := range sentences {
+		if !goaway.IsProfane(s) {
+			t.Error("Expected true, got false from sentence", s)
+		}
+	}
+}