tests: add test cases for Client

lib/plum/client.rb

@@ -2,17 +2,17 @@
 module Plum
   class Client
     DEFAULT_CONFIG = {
+      http2: true,
       scheme: "https",
+      hostname: nil,
       verify_mode: OpenSSL::SSL::VERIFY_PEER,
       ssl_context: nil,
-      hostname: nil,
       http2_settings: {},
       user_agent: "plum/#{Plum::VERSION}",
-      http2: true,
     }.freeze
 
     attr_reader :host, :port, :config
-    attr_reader :socket
+    attr_reader :socket, :session
 
     # Creates a new HTTP client and starts communication.
     # A shorthand for `Plum::Client.new(args).start(&block)`

test/plum/client/test_client.rb

@@ -80,6 +80,24 @@ def test_raise_error_async_block
     server_thread.join if server_thread
   end
 
+  def test_session_socket_http2_https
+    sock = StringSocket.new
+    client = Client.start(sock, nil, http2: true, scheme: "https")
+    assert(client.session.class == ClientSession)
+  end
+
+  def test_session_socket_http2_http
+    sock = StringSocket.new("HTTP/1.1 100\r\n\r\n")
+    client = Client.start(sock, nil, http2: true, scheme: "http")
+    assert(client.session.class == UpgradeClientSession)
+  end
+
+  def test_session_socket_http1
+    sock = StringSocket.new
+    client = Client.start(sock, nil, http2: false)
+    assert(client.session.class == LegacyClientSession)
+  end
+
   private
   def start_tls_server(&block)
     ctx = OpenSSL::SSL::SSLContext.new

test/utils/string_socket.rb

@@ -1,12 +1,15 @@
-class StringSocket
+class StringSocket < IO
+  # remove all methods
+  (IO.instance_methods - Object.instance_methods).each { |symbol| undef_method symbol }
+
   extend Forwardable
   def_delegators :@rio, :readpartial
   def_delegators :@wio, :<<, :write
 
   attr_reader :rio, :wio
 
-  def initialize(str)
-    @rio = StringIO.new(str)
+  def initialize(str = nil)
+    @rio = StringIO.new(str.to_s)
     @wio = StringIO.new
   end
 end