Contao\CoreBundle\Monolog\ContaoContext::setSource PHP Method

    public function setSource($source)
    {
        $this->source = (string) $source;
    }

 /**
  * Tests the setter and getter methods.
  */
 public function testSettersAndGetters()
 {
     $context = new ContaoContext('foo');
     $this->assertEquals('foo', $context->getFunc());
     $this->assertNull($context->getAction());
     $this->assertNull($context->getUsername());
     $this->assertNull($context->getIp());
     $this->assertNull($context->getBrowser());
     $this->assertNull($context->getSource());
     $context->setAction('action');
     $context->setUsername('username');
     $context->setIp('1.2.3.4');
     $context->setBrowser('Mozilla');
     $context->setSource('Foo::bar()');
     $this->assertEquals(json_encode(['func' => 'foo', 'action' => 'action', 'username' => 'username', 'ip' => '1.2.3.4', 'browser' => 'Mozilla']), (string) $context);
 }