code kata 230811

code_kata_230810/int_to_string_test.go

@@ -0,0 +1,37 @@
+package main
+
+import "testing"
+
+func IntToString(n int) string {
+	ret := make([]byte, 0)
+	for n > 0 {
+		ret = append([]byte{byte('0' + n%10)}, ret...)
+		n /= 10
+	}
+	//for l, r := 0, len(ret)-1; l < r; l, r = l+1, r-1 {
+	//	ret[l], ret[r] = ret[r], ret[l]
+	//}
+	return string(ret)
+}
+
+func TestIntToString(t *testing.T) {
+	tt := []struct {
+		name  string
+		input int
+		want  string
+	}{
+		{"1", 1, "1"},
+		{"11", 11, "11"},
+		{"112", 112, "112"},
+		{"11123456", 11123456, "11123456"},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			got := IntToString(tc.input)
+			if got != tc.want {
+				t.Errorf("IntToString(%d) = %s, want %s\n", tc.input, got, tc.want)
+			}
+		})
+	}
+}