wagner-fisher & werner algorithms working

wagner-fisher_test.go

@@ -0,0 +1,11 @@
+package editdistance
+
+import "testing"
+
+func TestWagnerFisher(t *testing.T) {
+	a := "abc"
+	b := "abd"
+	if WagnerFisher(a, b) != 1 {
+		t.Errorf("WagnerFisher was incorrect, got %d, want %d.", WagnerFisher(a, b), 1)
+	}
+}