From b47d6e3da6e34607f7f06b3acfceb74f62d5a6a6 Mon Sep 17 00:00:00 2001
From: Alex Flint <alex.flint@gmail.com>
Date: Fri, 1 Oct 2021 04:35:15 -0700
Subject: put name of environment variable in error message

---
 parse_test.go | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'parse_test.go')

diff --git a/parse_test.go b/parse_test.go
index 284e386..2d0ef7a 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -203,6 +203,14 @@ func TestRequired(t *testing.T) {
 	require.Error(t, err, "--foo is required")
 }
 
+func TestRequiredWithEnv(t *testing.T) {
+	var args struct {
+		Foo string `arg:"required,env:FOO"`
+	}
+	err := parse("", &args)
+	require.Error(t, err, "--foo is required (or environment variable FOO)")
+}
+
 func TestShortFlag(t *testing.T) {
 	var args struct {
 		Foo string `arg:"-f"`
-- 
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