feat: Prism::Server doesn't have host and port arguments anymore

BREAKING CHANGE: This is to comply with fresh standard `HTTP::Server` implementation.

Also added `Prism::Server` specs.

Related to #31

README.md

@@ -56,10 +56,11 @@ logger = Logger.new(STDOUT)
 log_handler = Prism::LogHandler.new(logger)
 handlers = [log_handler, router]
 
-server = Prism::Server.new(handlers, "localhost", 5000, true, logger)
+server = Prism::Server.new(handlers, logger)
+server.bind_tcp(5000)
 server.listen
 
-#  INFO -- :   Prism::Server is listening on http://localhost:5000...
+#  INFO -- :   Prism::Server is listening on http://127.0.0.1:5000...
 ```
 
 ## Websockets example

spec/server_spec.cr

@@ -0,0 +1,26 @@
+require "./spec_helper"
+require "../src/prism/server"
+
+describe Prism::Server do
+  router = Prism::Router.new do
+    get "/" do |env|
+      env.response.print("Hello Prism!")
+    end
+  end
+
+  server = Prism::Server.new([router])
+
+  it "works" do
+    spawn do
+      server.bind_tcp(5042)
+      server.listen
+    end
+
+    sleep(0.5)
+
+    response = HTTP::Client.get("http://localhost:5042")
+    response.body.should eq "Hello Prism!"
+
+    server.close
+  end
+end

src/prism/server.cr

@@ -19,10 +19,11 @@ module Prism
   #
   # log_handler = Prism::LogHandler.new(Logger.new(STDOUT))
   #
-  # server = Prism::Server.new([log_handler, router], "0.0.0.0", 5000)
+  # server = Prism::Server.new([log_handler, router])
+  # server.bind_tcp(5000)
   # server.listen
   #
-  # #  INFO -- : Prism::Server is listening on http://0.0.0.0:5000
+  # #  INFO -- : Prism::Server is listening on http://localhost:5000
   # #  INFO -- :     GET /? 200 61μs
   # #  INFO -- :     GET /foo? 404 166μs
   # #  INFO -- : Prism::Server is shutting down!
@@ -32,36 +33,35 @@ module Prism
   class Server
     def initialize(
       handlers : Array(HTTP::Handler),
-      @host = "0.0.0.0",
-      @port = 5000,
-      reuse_port = false,
       @logger = ::Logger.new(STDOUT)
     )
-      @tcp_server = HTTP::Server.new(handlers) do |context|
+      @server = HTTP::Server.new(handlers) do |context|
         if action = context.request.action
           action.call(context)
         else
           context.response.status_code = 404
           context.response.print("Not Found: #{context.request.path}")
         end
       end
-
-      @tcp_server.bind_tcp(@host, @port)
     end
 
     def listen
+      # It's simpler than handling "not binded" case here
       @logger.info(
         "Prism::Server is listening on " +
-        "http://#{@host}:#{@port}".colorize(:light_gray).mode(:bold).to_s
-      )
+        "http://#{addresses.first}".colorize(:light_gray).mode(:bold).to_s +
+        "..."
+      ) if addresses.any?
 
       Signal::INT.trap do
         puts "\n"
         @logger.info("Prism::Server is shutting down!")
         exit
       end
 
-      @tcp_server.listen
+      @server.listen
     end
+
+    forward_missing_to @server
   end
 end