Skip broken tests on legacy HHVM

Author: clue

tests/AbstractProcessTest.php

@@ -86,6 +86,10 @@ public function testStartWithCustomPipesWillAssignPipes()
 
     public function testStartWithInvalidFileDescriptorPathWillThrow()
     {
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('Not supported on legacy HHVM');
+        }
+
         $fds = array(
             4 => array('file', '/dev/does-not-exist', 'r')
         );
@@ -101,6 +105,9 @@ public function testStartWithExcessiveNumberOfFileDescriptorsWillThrow()
         if (PHP_VERSION_ID < 70000) {
             $this->markTestSkipped('PHP 7+ only, causes memory overflow on legacy PHP 5');
         }
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('Not supported on legacy HHVM');
+        }
 
         $ulimit = exec('ulimit -n 2>&1');
         if ($ulimit < 1) {
@@ -273,6 +280,10 @@ public function testReceivesProcessOutputFromStdoutAttachedToSocket()
 
     public function testReceivesProcessOutputFromStdoutRedirectedToSocketProcess()
     {
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('Not supported on legacy HHVM');
+        }
+
         // create TCP/IP server on random port and wait for client connection
         $server = stream_socket_server('tcp://127.0.0.1:0');