!changed mathutil package to mathy, removed int/string casting from mathy

2015/day21/main_test.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/alexchao26/advent-of-code-go/util"
+)
+
+func Test_rpgSimulator(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want1 int
+		want2 int
+	}{
+		{"actual", util.ReadFile("input.txt"), 121, 201},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got1, got2 := rpgSimulator(tt.input)
+			if got1 != tt.want1 {
+				t.Errorf("rpgSimulator() = %v, want1 %v", got1, tt.want1)
+			}
+			if got2 != tt.want2 {
+				t.Errorf("rpgSimulator() = %v, want2 %v", got2, tt.want2)
+			}
+		})
+	}
+}