/**
* Tests that the Stable base theme is installed if necessary.
*/
public function testUpdateHookN()
{
$this->assertTrue($this->themeHandler->themeExists('test_stable'));
$this->assertFalse($this->themeHandler->themeExists('stable'));
$this->runUpdates();
// Refresh the theme handler now that Stable has been installed.
$this->themeHandler->refreshInfo();
$this->assertTrue($this->themeHandler->themeExists('stable'));
}