Handle no input string

kashav · May 17, 2017 · 20e5acd · 20e5acd · rmgas1 · May 17, 2017
1 parent e5553ba
commit 20e5acd
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/main.go b/main.go
@@ -26,6 +26,10 @@ var seen = make(map[string]bool, 0)
 
 // Read the command line arguments for the query.
 func readInput() string {
+	if len(os.Args) == 1 {
+		log.Fatal("Expected query.")
+	}
+
 	if len(os.Args) > 2 {
 		return strings.Join(os.Args[1:], " ")
 	}