public function testCustomAttribute() { $text = new Text('email'); $expected = '<input type="text" name="email" data-sample="test-value">'; $result = $text->attribute('data-sample', 'test-value')->render(); $this->assertEquals($expected, $result); $expected = '<input type="text" name="email">'; $result = $text->clear('data-sample')->render(); $this->assertEquals($expected, $result); }