public function testIsBelowMaxHeight()
{
$this->assertTrue(ImageValidation::isBelowMaxHeight($this->data, 30));
$this->assertFalse(ImageValidation::isBelowMaxHeight($this->data, 10));
// Test if no tmp_name is set or specified
$this->data['tmp_name'] = '';
$this->assertFalse(ImageValidation::isBelowMaxHeight($this->data, 10));
unset($this->data['tmp_name']);
$this->assertFalse(ImageValidation::isBelowMaxHeight($this->data, 10));
}