1 files changed, 19 insertions, 0 deletions
diff --git a/multi_string_flag_test.go b/multi_string_flag_test.go
new file mode 100644
index 00000000..bbbdea3d
--- /dev/null
+++ b/multi_string_flag_test.go
@@ -0,0 +1,19 @@
+package main
+
+import (
+	"flag"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestMultiStringFlagAppendsOnSet(t *testing.T) {
+	var concrete MultiStringFlag
+	var iface flag.Value
+
+	iface = &concrete
+
+	assert.NoError(t, iface.Set("foo"))
+	assert.NoError(t, iface.Set("bar"))
+
+	assert.Equal(t, MultiStringFlag{"foo", "bar"}, concrete)
+}