From 4dfb967b78c7f989ae9f3ed8ca3f49a0fbdb392d Mon Sep 17 00:00:00 2001
From: Vladimir Kuznetsov <v.j.kuznetsov@gmail.com>
Date: Sat, 29 Feb 2020 16:37:29 +0000
Subject: [PATCH] Update fmt_test.go - add test for double-digit, three-digit
 and four-digit argument index using common slice object (via @verytable
 comment)

---
 varfmt/fmt_test.go | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/varfmt/fmt_test.go b/varfmt/fmt_test.go
index 661dcb5..c5ac498 100644
--- a/varfmt/fmt_test.go
+++ b/varfmt/fmt_test.go
@@ -9,6 +9,11 @@ import (
 )
 
 func TestFormat(t *testing.T) {
+	var interfaceSlice []interface{} = make([]interface{}, 1002)
+	interfaceSlice[10] = 1
+	interfaceSlice[100] = 1
+	interfaceSlice[1000] = 1
+
 	for _, tc := range []struct {
 		format string
 		args   []interface{}
@@ -45,9 +50,19 @@ func TestFormat(t *testing.T) {
 			result: "Hello, World",
 		},
 		{
-			format: "{10}",
-			args:	[]interface{}{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
-			result:	"10",
+			format: "check {10}",
+			args:   interfaceSlice[:11],
+			result: "check 1",
+		},
+		{
+			format: "check {100}",
+			args:   interfaceSlice[:101],
+			result: "check 1",
+		},
+		{
+			format: "check {1000}",
+			args:   interfaceSlice[:1001],
+			result: "check 1",
 		},
 	} {
 		t.Run(tc.result, func(t *testing.T) {