Move IPv6 tests to a separate file. Add a setUp method to detect if PHP has IPv6 support, the host has IPv6 support, and that IPv6 is routable (quick connection to google IPv6 server). Skip tests if we are running on a host or network that cannot do IPv6

Author: lucasnetau

tests/FunctionalTests.php renamed to tests/FunctionalTest.php

@@ -11,7 +11,7 @@
 /**
  * Functional Tests
  */
-class FunctionalTests extends TestCase
+class FunctionalTest extends TestCase
 {
     public function testResolveCloudflareViaPostResolves()
     {
@@ -86,40 +86,6 @@ public function testResolveSecondQueryReusesConnection()
         $this->assertEquals(Message::RCODE_OK, $answer->rcode);
     }
 
-    public function testResolveGoogleViaIPv6HostResolves()
-    {
-        $executor = new DohExecutor('https://dns64.dns.google/dns-query');
-        $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
-        $promise = $executor->query($query);
-
-        $answer = null;
-        $promise->then(function ($message) use (&$answer) {
-            $answer = $message;
-        }, function($reason) { echo $reason->getMessage();});
-
-        Loop::run();
-
-        $this->assertNotNull($answer);
-        $this->assertEquals(Message::RCODE_OK, $answer->rcode);
-    }
-
-    public function testResolveGoogleViaIPv6IpResolves()
-    {
-        $executor = new DohExecutor('https://[2001:4860:4860::8888]/dns-query');
-        $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
-        $promise = $executor->query($query);
-
-        $answer = null;
-        $promise->then(function ($message) use (&$answer) {
-            $answer = $message;
-        }, function($reason) { echo $reason->getMessage();});
-
-        Loop::run();
-
-        $this->assertNotNull($answer);
-        $this->assertEquals(Message::RCODE_OK, $answer->rcode);
-    }
-
     public function testResolveInvalidRejects()
     {
         $executor = new DohExecutor('https://1.1.1.1/dns-query');

tests/IPv6Test.php

@@ -0,0 +1,74 @@
+<?php declare(strict_types=1);
+
+namespace EdgeTelemetrics\React\Dns\Tests;
+
+use EdgeTelemetrics\React\Dns\DohExecutor;
+use PHPUnit\Framework\TestCase;
+use React\Dns\Model\Message;
+use React\Dns\Query\Query;
+use React\EventLoop\Loop;
+
+/**
+ * IPv6 Tests
+ */
+class IPv6Test extends TestCase
+{
+    protected function setUp(): void
+    {
+        if (!(defined("AF_INET6") && @\stream_socket_client('udp://[::1]:8888') !== false)) {
+            $this->markTestSkipped('IPv6 Unavailable');
+        }
+        $context = stream_context_create();
+        stream_context_set_option($context, 'ssl', 'verify_host', false);
+        stream_context_set_option($context, 'ssl', 'verify_peer_name', false);
+
+        $dns = 'tls://[2001:4860:4860::8888]:443';
+
+        $socket = @\stream_socket_client($dns, $errno, $errstr, 5, STREAM_CLIENT_CONNECT, $context);
+        if ($socket === false) {
+            $this->markTestSkipped('IPv6 not routable');
+        }
+    }
+
+    public function testResolveGoogleViaIPv6HostResolves()
+    {
+        $executor = new DohExecutor('https://dns64.dns.google/dns-query');
+        $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
+        $promise = $executor->query($query);
+
+        $answer = null;
+        $exception = null;
+        $promise->then(function ($message) use (&$answer) {
+            $answer = $message;
+        }, function($reason) use (&$exception) {
+            $exception = $reason;
+        });
+
+        Loop::run();
+
+        $this->assertNull($exception);
+        $this->assertNotNull($answer);
+        $this->assertEquals(Message::RCODE_OK, $answer->rcode);
+    }
+
+    public function testResolveGoogleViaIPv6IpResolves()
+    {
+        $executor = new DohExecutor('https://[2001:4860:4860::8888]/dns-query');
+        $query = new Query('google.com', Message::TYPE_A, Message::CLASS_IN);
+        $promise = $executor->query($query);
+
+        $answer = null;
+        $exception = null;
+        $promise->then(function ($message) use (&$answer) {
+            $answer = $message;
+        }, function($reason) use (&$exception) {
+            $exception = $reason;
+        });
+
+        Loop::run();
+
+        $this->assertNull($exception);
+        $this->assertNotNull($answer);
+        $this->assertEquals(Message::RCODE_OK, $answer->rcode);
+    }
+}