/**
  * Method to test isEmptyString().
  *
  * @return void
  *
  * @covers Windwalker\String\StringHelper::isEmptyString
  */
 public function testIsEmpty()
 {
     $this->assertTrue(StringHelper::isEmpty(''));
     $this->assertFalse(StringHelper::isEmpty(0));
     $this->assertFalse(StringHelper::isEmpty(' '));
     $this->assertTrue(StringHelper::isEmpty(null));
     $this->assertFalse(StringHelper::isEmpty(true));
     $this->assertTrue(StringHelper::isEmpty(false));
 }