1 files changed, 68 insertions, 0 deletions
diff --git a/pkg/tcpip/header/eth_test.go b/pkg/tcpip/header/eth_test.go
new file mode 100644
index 000000000..6634c90f5
--- /dev/null
+++ b/pkg/tcpip/header/eth_test.go
@@ -0,0 +1,68 @@
+// Copyright 2018 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package header
+
+import (
+	"testing"
+
+	"gvisor.dev/gvisor/pkg/tcpip"
+)
+
+func TestIsValidUnicastEthernetAddress(t *testing.T) {
+	tests := []struct {
+		name     string
+		addr     tcpip.LinkAddress
+		expected bool
+	}{
+		{
+			"Nil",
+			tcpip.LinkAddress([]byte(nil)),
+			false,
+		},
+		{
+			"Empty",
+			tcpip.LinkAddress(""),
+			false,
+		},
+		{
+			"InvalidLength",
+			tcpip.LinkAddress("\x01\x02\x03"),
+			false,
+		},
+		{
+			"Unspecified",
+			unspecifiedEthernetAddress,
+			false,
+		},
+		{
+			"Multicast",
+			tcpip.LinkAddress("\x01\x02\x03\x04\x05\x06"),
+			false,
+		},
+		{
+			"Valid",
+			tcpip.LinkAddress("\x02\x02\x03\x04\x05\x06"),
+			true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if got := IsValidUnicastEthernetAddress(test.addr); got != test.expected {
+				t.Fatalf("got IsValidUnicastEthernetAddress = %t, want = %t", got, test.expected)
+			}
+		})
+	}
+}