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