UdpConnection test

tests/Unit/Connection/UdpConnectionTest.php

@@ -1,5 +1,44 @@
 <?php
 
-it('tests udp connection', function (){
+use Workerman\Connection\UdpConnection;
+use Symfony\Component\Process\PhpProcess;
 
+$remoteAddress = '[::1]:12345';
+$process = new PhpProcess(<<<PHP
+<?php
+\$socketServer = stream_socket_server("udp://$remoteAddress", \$errno, \$errstr, STREAM_SERVER_BIND);
+do{
+    \$data = stream_socket_recvfrom(\$socketServer, 3);
+}while(\$data !== false && \$data !== 'bye');
+PHP
+);
+$process->start();
+
+it('tests ' . UdpConnection::class, function () use ($remoteAddress) {
+
+    $socketClient = stream_socket_client("udp://$remoteAddress");
+    $udpConnection = new UdpConnection($socketClient, $remoteAddress);
+    $udpConnection->protocol = \Workerman\Protocols\Text::class;
+    expect($udpConnection->send('foo'))->toBeTrue();
+
+    expect($udpConnection->getRemoteIp())->toBe('::1');
+    expect($udpConnection->getRemotePort())->toBe(12345);
+    expect($udpConnection->getRemoteAddress())->toBe($remoteAddress);
+    expect($udpConnection->getLocalIp())->toBeIn(['::1', '[::1]', '127.0.0.1']);
+    expect($udpConnection->getLocalPort())->toBeInt();
+
+    expect(json_encode($udpConnection))->toBeJson()
+        ->toContain('transport')
+        ->toContain('getRemoteIp')
+        ->toContain('remotePort')
+        ->toContain('getRemoteAddress')
+        ->toContain('getLocalIp')
+        ->toContain('getLocalPort')
+        ->toContain('isIpV4')
+        ->toContain('isIpV6');
+
+    $udpConnection->close('bye');
+    if (is_resource($socketClient)) {
+        fclose($socketClient);
+    }
 });