Add message number pool resource (#84)

Co-authored-by: ADandyGuyInSpace <[email protected]>

lib/telnyx.rb

@@ -56,6 +56,7 @@
 require "telnyx/ip_connection"
 require "telnyx/ip"
 require "telnyx/message"
+require "telnyx/message_number_pool"
 require "telnyx/messaging_phone_number"
 require "telnyx/messaging_profile"
 require "telnyx/mobile_operator_network"

lib/telnyx/message_number_pool.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Telnyx
+  class MessageNumberPool < APIResource
+    extend Telnyx::APIOperations::Create
+
+    RESOURCE_PATH = "messages/number_pool"
+  end
+end

test/telnyx/message_number_pool_test.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require_relative "../test_helper"
+
+module Telnyx
+  class MessageNumberPoolTest < Test::Unit::TestCase
+    should "be creatable" do
+      message = Telnyx::MessageNumberPool.create(
+        to: "+18005554000",
+        from: "+18005559000",
+        text: "Hello, World!",
+        messaging_profile_id: "PROFILE_ID"
+      )
+      assert_requested :post, "#{Telnyx.api_base}/v2/messages/number_pool"
+      assert message.is_a?(Telnyx::Message)
+    end
+  end
+end