CODEWITHSUNDEEP
phpseleniumphpunitcentos6
AntoninoR
AntoninoR

Reputation: 71

Selenium server unable to connect to host, no display specified - OLD:failed to start new browser session

I'm using Selenium server (2.39.0) on centOs server 6.5 (redhat) developing tests in PHP, using phpUnit (i installed phpunit by pear as well)

but everytime i get this error:

Invalid response while accessing the Selenium Server at 'http://localhost:4444/selenium-server/driver/': 
Failed to start new browser session: org.openqa.selenium.server.RemoteCommandException:
Error while launching browser
Caused by
RuntimeException: 
Invalid response while accessing the Selenium Server at 'http://localhost:4444/selenium-server/driver/': 
Failed to start new browser session: org.openqa.selenium.server.RemoteCommandException:
Error while launching browser

this is the test that i'm trying to execute:

<?php

require_once 'PHPUnit/Extensions/SeleniumTestCase.php';

class Example extends PHPUnit_Extensions_SeleniumTestCase
{
   function setUp()
  {
    $this->setBrowser("*firefox");
    $this->setBrowserUrl("http://www.google.com/");
  }

  function testMyTestCase()
  {
    $this->open("/");
    $this->type("q", "selenium rc");
    $this->click("btnG");
    $this->waitForPageToLoad("30000");
    $this->assertTrue($this->isTextPresent("Results * for selenium rc"));
  }
}
?>

i'm trying also to run the script using :

phpunit --configuration conf.xml example.php

where in conf.xml i've got:

<browser name="Firefox" browser="*firefox" host="IPHOST" port="4444" timeout="30000" />

but i receive the same error

and the door 4444 is free:

netstat -anp | grep 4444

gives:

tcp        0      0 :::4444                     :::*                        LISTEN

what am i doing wrong?

EDIT:

@sircapsalot: do you mean to change the script?

anyway i don't know if i'm going to the right direction but i changed something: first of all the script is different:

<?php
class Example extends PHPUnit_Extensions_Selenium2TestCase
{
  protected function setUp()
  {
    $this->setBrowser('firefox');
    $this->setBrowserUrl('http://www.example.com/');
  }

  public function testTitle()
  {
    $this->url('http://www.example.com/');
    $this->assertEquals('Example WWW page', $this->title());
  }
}
?>

and i installed Xvfb so now i don't have the error that selenium has failed to start new browser session, but i'm having another error

PHPUnit_Extensions_Selenium2TestCase_WebDriverException: 
Unable to connect to host 127.0.0.1 on port 7055 after 45000ms. 
Firefox console output:
Error: no display specified

and i already tried with:

Xvfb :99 -ac -screen 0 1280x1024x24 &

and: 

export DISPLAY=:99

Upvotes: 1

Views: 4529

Answers (1)

AntoninoR
AntoninoR

Reputation: 71

i've fixed the "no display specified" error, the mistake was that selenium server was already running when i was starting Xvfb, so this are the steps (after Xvfb and selenium installation):

  • run Xvfb ( Xvfb :99 -ac -screen 0 1280x1024x24 & )
  • export display ( export DISPLAY=:99 )
  • run selenium ( java -jar selenium-server-standalone-versionNumber.jar )
  • run script ( phpunit namefile.php )

if selenium is already running you can stop it by:

localhost:4444/selenium-server/driver/?cmd=shutDownSeleniumServer

now the script works

Upvotes: 4

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