Merge pull request #45 from alexflint/empty_args

Do not crash when os.Args is empty

1 files changed, 14 insertions, 0 deletions

diff --git a/parse_test.go b/parse_test.go
index dffebf4..8779b6f 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -654,3 +654,17 @@ func TestEmbedded(t *testing.T) {
 	assert.Equal(t, 321, args.Y)
 	assert.Equal(t, true, args.Z)
 }
+
+func TestEmptyArgs(t *testing.T) {
+	origArgs := os.Args
+
+	// test what happens if somehow os.Args is empty
+	os.Args = nil
+	var args struct {
+		Foo string
+	}
+	MustParse(&args)
+
+	// put the original arguments back
+	os.Args = origArgs
+}