createMock

    /**
     * Returns a test double for the specified class.
     *
     * @param string $originalClassName
     *
     * @return PHPUnit_Framework_MockObject_MockObject
     *
     * @throws PHPUnit_Framework_Exception
     *
     * @since Method available since Release 5.4.0
     */
    protected function createMock($originalClassName)
    {
        return $this->getMockBuilder($originalClassName)
                    ->disableOriginalConstructor()
                    ->disableOriginalClone()
                    ->disableArgumentCloning()
                    ->disallowMockingUnknownTypes()
                    ->getMock();
    }