From 64229c9fe78f0cfabce5c3713508ca9bb23b1a09 Mon Sep 17 00:00:00 2001
From: Alec Thomas <alec@swapoff.org>
Date: Sun, 3 Nov 2024 14:00:32 +1100
Subject: [PATCH] fix: format enum value

Fixed in #415
---
 context.go   |  2 +-
 kong_test.go | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/context.go b/context.go
index 2ed5d28..f174e63 100644
--- a/context.go
+++ b/context.go
@@ -996,7 +996,7 @@ func checkEnum(value *Value, target reflect.Value) error {
 			}
 			enums = append(enums, fmt.Sprintf("%q", enum))
 		}
-		return fmt.Errorf("%s must be one of %s but got %q", value.ShortSummary(), strings.Join(enums, ","), target.Interface())
+		return fmt.Errorf("%s must be one of %s but got %q", value.ShortSummary(), strings.Join(enums, ","), fmt.Sprintf("%v", target.Interface()))
 	}
 }
 
diff --git a/kong_test.go b/kong_test.go
index 4785dd0..9547dd4 100644
--- a/kong_test.go
+++ b/kong_test.go
@@ -2291,3 +2291,13 @@ func TestEnumPtrOmittedNoDefault(t *testing.T) {
 	assert.NotZero(t, ctx)
 	assert.Zero(t, cli.X)
 }
+
+func TestIntEnum(t *testing.T) {
+	var cli struct {
+		Enum int `enum:"1,2,3" default:"1"`
+	}
+	k, err := kong.New(&cli)
+	assert.NoError(t, err)
+	_, err = k.Parse([]string{"--enum=123"})
+	assert.EqualError(t, err, `--enum must be one of "1","2","3" but got "123"`)
+}