public function testValidateAttribute()
{
$this->tester->haveInCollection(Number::collectionName(), ['number' => '9101234567']);
$this->specify("Test validate", function ($number, $expected) {
$this->model['number'] = $number;
$this->model->validate(['number']);
$this->tester->assertEquals($expected, $this->model->hasErrors());
}, ['examples' => [['9101234567', false], ['1111111111', true], ['9121111111', true]]]);
}
