1 files changed, 33 insertions, 0 deletions
diff --git a/dhcpv6/option_informationrefreshtime_test.go b/dhcpv6/option_informationrefreshtime_test.go
new file mode 100644
index 0000000..68f0855
--- /dev/null
+++ b/dhcpv6/option_informationrefreshtime_test.go
@@ -0,0 +1,33 @@
+package dhcpv6
+
+import (
+	"bytes"
+	"testing"
+	"time"
+)
+
+func TestOptInformationRefreshTime(t *testing.T) {
+	opt, err := parseOptInformationRefreshTime([]byte{0xaa, 0xbb, 0xcc, 0xdd})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if informationRefreshTime := opt.InformationRefreshtime; informationRefreshTime != time.Duration(0xaabbccdd) * time.Second {
+		t.Fatalf("Invalid information refresh time. Expected 0xaabb, got %v", informationRefreshTime)
+	}
+}
+
+func TestOptInformationRefreshTimeToBytes(t *testing.T) {
+	opt := OptInformationRefreshTime(0)
+	expected := []byte{0, 0, 0, 0}
+	if toBytes := opt.ToBytes(); !bytes.Equal(expected, toBytes) {
+		t.Fatalf("Invalid ToBytes output. Expected %v, got %v", expected, toBytes)
+	}
+}
+
+func TestOptInformationRefreshTimeString(t *testing.T) {
+	opt := OptInformationRefreshTime(3600 * time.Second)
+	expected := "InformationRefreshTime: 1h0m0s"
+	if optString := opt.String(); optString != expected {
+		t.Fatalf("Invalid elapsed time string. Expected %v, got %v", expected, optString)
+	}
+}