public function testPopoverField()
{
// Test normal constructor
$field = new PopoverField('My Title', [new TextField('Name')]);
$field->setPopoverTitle('Popover Title');
$this->assertEquals('My Title', $field->Title());
$this->assertEquals('Popover Title', $field->getPopoverTitle());
$this->assertEquals('Name', $field->getChildren()->first()->Title());
// Test single array argument
$field2 = new PopoverField([new TextField('Other')]);
$this->assertEmpty($field2->Title());
$this->assertEquals('Other', $field2->getChildren()->first()->Title());
// Test variable length constructor
$field3 = new PopoverField('Field Title', new TextField('First'), new TextField('Second'));
$this->assertEquals('Field Title', $field3->Title());
$this->assertEquals('First', $field3->getChildren()->first()->Title());
$this->assertEquals('Second', $field3->getChildren()->last()->Title());
}