Add tests for Omnibot.Contrib.Linkbot

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

test/contrib/linkbot_test.exs

@@ -0,0 +1,48 @@
+defmodule LinkbotTest do
+  use ExUnit.Case
+
+  alias Omnibot.Contrib.Linkbot
+
+  test "blacklist blocks local addresses" do
+    blocked_hosts = [
+      "localhost",
+      "remote",
+      "remote.local",
+      "remote.corp.local",
+      "127.0.0.1",
+      "192.168.0.1",
+      "192.168.1.1",
+      "192.168.1.255",
+      "10.1.1.24",
+      "10.1.1.255",
+      "172.1.1.22",
+      "172.1.1.255",
+    ]
+    allowed_hosts = [
+      "local.tld",
+      "localhost.com",
+      "local.remote.com",
+      "remote.local.com",
+    ]
+
+    Enum.each(blocked_hosts, fn host ->
+      assert Linkbot.blacklisted?("http://#{host}")
+      assert Linkbot.blacklisted?("http://#{host}/")
+      assert Linkbot.blacklisted?("http://foo:bar@#{host}/")
+
+      assert Linkbot.blacklisted?("https://#{host}")
+      assert Linkbot.blacklisted?("https://#{host}/")
+      assert Linkbot.blacklisted?("https://foo:bar@#{host}/")
+    end)
+
+    Enum.each(allowed_hosts, fn host ->
+      assert !Linkbot.blacklisted?("http://#{host}")
+      assert !Linkbot.blacklisted?("http://#{host}/")
+      assert !Linkbot.blacklisted?("http://foo:bar@#{host}/")
+
+      assert !Linkbot.blacklisted?("https://#{host}")
+      assert !Linkbot.blacklisted?("https://#{host}/")
+      assert !Linkbot.blacklisted?("https://foo:bar@#{host}/")
+    end)
+  end
+end