tres: Add address helpers

test/ipv4_address_test.exs

@@ -0,0 +1,17 @@
+defmodule IPv4AddressTest do
+  use ExUnit.Case, async: false
+
+  describe "IPv4Address.parse/1" do
+    test "with host(/32) address string" do
+      expect = {{192, 168, 10, 1}, {255, 255, 255, 255}}
+      ipaddr = "192.168.10.1"
+      assert Tres.IPv4Address.parse(ipaddr) == expect
+    end
+
+    test "with network(/24) address string" do
+      expect = {{192, 168, 10, 0}, {255, 255, 255, 0}}
+      ipaddr = "192.168.10.0/24"
+      assert Tres.IPv4Address.parse(ipaddr) == expect
+    end
+  end
+end

test/mac_address_test.exs

@@ -0,0 +1,53 @@
+defmodule MacAddressTest do
+  use ExUnit.Case, async: false
+
+  describe "MacAddr.bin_to_str/1" do
+    test "with 48 bit binary" do
+      mac_bin = <<0x11, 0x22, 0x33, 0x44, 0x55, 0x66>>
+      assert Tres.MacAddress.bin_to_str(mac_bin) == "112233445566"
+    end
+  end
+
+  describe "MacAddr.to_a/1" do
+    test "with String" do
+      expect = [0x11, 0x22, 0x33, 0x44, 0x55, 0x66]
+      assert Tres.MacAddress.to_a("112233445566") == expect
+    end
+  end
+
+  describe "MacAddr.to_i/1" do
+    test "with String" do
+      expect = 0x112233445566
+      assert Tres.MacAddress.to_i("112233445566") == expect
+    end
+  end
+
+  describe "MacAddr.broadcast?/1" do
+    test "with unicast" do
+      mac = "0e2ecad87537"
+      refute Tres.MacAddress.is_broadcast?(mac)
+    end
+
+    test "with bcast" do
+      mac = "ffffffffffff"
+      assert Tres.MacAddress.is_broadcast?(mac)
+    end
+  end
+
+  describe "MacAddr.multicast?/1" do
+    test "with unicast" do
+      mac = "0e2ecad87537"
+      refute Tres.MacAddress.is_multicast?(mac)
+    end
+
+    test "with bcast" do
+      mac = "ffffffffffff"
+      assert Tres.MacAddress.is_multicast?(mac)
+    end
+
+    test "with mcast" do
+      mac = "ffffffffffff"
+      assert Tres.MacAddress.is_multicast?(mac)
+    end
+  end
+end