From 451fbd32c31053918d0d53411dd986582fcaf32a Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Thu, 5 Aug 2021 10:18:31 +0500
Subject: [PATCH] Add tests

---
 src/address/address_test.go | 52 +++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 src/address/address_test.go

diff --git a/src/address/address_test.go b/src/address/address_test.go
new file mode 100644
index 00000000..21aa6c29
--- /dev/null
+++ b/src/address/address_test.go
@@ -0,0 +1,52 @@
+package address
+
+import (
+	"math/rand"
+	"testing"
+)
+
+func TestAddress_Address_IsValid(t *testing.T) {
+	var address Address
+	rand.Read(address[:])
+
+	address[0] = 0
+
+	if address.IsValid() {
+		t.Fatal("invalid address marked as valid")
+	}
+
+	address[0] = 0x03
+
+	if address.IsValid() {
+		t.Fatal("invalid address marked as valid")
+	}
+
+	address[0] = 0x02
+
+	if !address.IsValid() {
+		t.Fatal("valid address marked as invalid")
+	}
+}
+
+func TestAddress_Subnet_IsValid(t *testing.T) {
+	var subnet Subnet
+	rand.Read(subnet[:])
+
+	subnet[0] = 0
+
+	if subnet.IsValid() {
+		t.Fatal("invalid subnet marked as valid")
+	}
+
+	subnet[0] = 0x02
+
+	if subnet.IsValid() {
+		t.Fatal("invalid subnet marked as valid")
+	}
+
+	subnet[0] = 0x03
+
+	if !subnet.IsValid() {
+		t.Fatal("valid subnet marked as invalid")
+	}
+}