public function testApplyButtonStyles()
{
$this->assertEquals(['class' => 'btn btn-default'], $this->object->applyButtonClasses([]));
foreach (['default', 'success', 'warning', 'danger', 'info', 'primary'] as $style) {
$this->assertEquals(['class' => "btn-{$style} btn"], $this->object->applyButtonClasses(['class' => $style]));
$this->assertEquals(['class' => "btn-{$style} btn"], $this->object->applyButtonClasses(['class' => "btn-{$style}"]));
}
}