added websocket unit test

tests/unittest.cpp

@@ -1371,3 +1371,137 @@ TEST_CASE("stream_response")
     });
     runTest.join();
 }
+
+TEST_CASE("websocket")
+{
+  static std::string http_message = "GET /ws HTTP/1.1\r\nConnection: keep-alive, Upgrade\r\nupgrade: websocket\r\nSec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\nSec-WebSocket-Version: 13\r\n\r\n";
+
+  static bool connected{false};
+
+  SimpleApp app;
+
+  CROW_ROUTE(app, "/ws").websocket()
+  .onopen([&](websocket::connection&){
+      connected = true;
+      CROW_LOG_INFO << "Connected websocket and value is " << connected;
+  })
+  .onmessage([&](websocket::connection& conn, const std::string& message, bool isbin){
+      CROW_LOG_INFO << "Message is \"" << message << '\"';
+      if (!isbin && message == "PINGME")
+          conn.send_ping("");
+      else if (!isbin && message == "Hello")
+          conn.send_text("Hello back");
+      else if (isbin && message == "Hello bin")
+          conn.send_binary("Hello back bin");
+  })
+  .onclose([&](websocket::connection&, const std::string&){
+      CROW_LOG_INFO << "Closing websocket";
+  });
+
+  app.validate();
+
+  auto _ = async(launch::async,
+                 [&] { app.bindaddr(LOCALHOST_ADDRESS).port(45451).run(); });
+  app.wait_for_server_start();
+  asio::io_service is;
+
+  asio::ip::tcp::socket c(is);
+  c.connect(asio::ip::tcp::endpoint(
+      asio::ip::address::from_string(LOCALHOST_ADDRESS), 45451));
+
+
+  char buf[2048];
+
+  //----------Handshake----------
+  {
+    std::fill_n (buf, 2048, 0);
+    c.send(asio::buffer(http_message));
+
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    CHECK(connected);
+  }
+  //----------Pong----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char ping_message[2]("\x89");
+
+    c.send(asio::buffer(ping_message, 2));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    CHECK((int)(unsigned char)buf[0] == 0x8A);
+  }
+  //----------Ping----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char not_ping_message[2+6+1]("\x81\x06"
+                                 "PINGME");
+
+    c.send(asio::buffer(not_ping_message, 8));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    CHECK((int)(unsigned char)buf[0] == 0x89);
+  }
+  //----------Text----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char text_message[2+5+1]("\x81\x05"
+                             "Hello");
+
+    c.send(asio::buffer(text_message, 7));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    std::string checkstring(std::string(buf).substr(0, 12));
+    CHECK(checkstring == "\x81\x0AHello back");
+  }
+  //----------Binary----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char bin_message[2+9+1]("\x82\x09"
+                            "Hello bin");
+
+    c.send(asio::buffer(bin_message, 11));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    std::string checkstring2(std::string(buf).substr(0, 16));
+    CHECK(checkstring2 == "\x82\x0EHello back bin");
+  }
+  //----------Masked Text----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char text_masked_message[2+4+5+1]("\x81\x85"
+                                      "\x67\xc6\x69\x73"
+                                      "\x2f\xa3\x05\x1f\x08");
+
+    c.send(asio::buffer(text_masked_message, 11));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    std::string checkstring3(std::string(buf).substr(0, 12));
+    CHECK(checkstring3 == "\x81\x0AHello back");
+  }
+  //----------Masked Binary----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char bin_masked_message[2+4+9+1]("\x82\x89"
+                                     "\x67\xc6\x69\x73"
+                                     "\x2f\xa3\x05\x1f\x08\xe6\x0b\x1a\x09");
+
+    c.send(asio::buffer(bin_masked_message, 15));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    std::string checkstring4(std::string(buf).substr(0, 16));
+    CHECK(checkstring4 == "\x82\x0EHello back bin");
+  }
+  //----------Close----------
+  {
+    std::fill_n (buf, 2048, 0);
+    char close_message[10]("\x88"); //I do not know why, but the websocket code does not read this unless it's longer than 4 or so bytes
+
+    c.send(asio::buffer(close_message, 10));
+    c.receive(asio::buffer(buf, 2048));
+    std::this_thread::sleep_for(std::chrono::milliseconds(5));
+    CHECK((int)(unsigned char)buf[0] == 0x88);
+  }
+
+  app.stop();
+}