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<?php
namespace Drupal\system\Tests\Form;
use Drupal\simpletest\WebTestBase;
/**
* Tests form API checkbox handling of various combinations of #default_value
* and #return_value.
*
* @group Form
*/
class CheckboxTest extends WebTestBase {
/**
* Modules to enable.
*
* @var array
*/
public static $modules = ['form_test'];
public function testFormCheckbox() {
// Ensure that the checked state is determined and rendered correctly for
// tricky combinations of default and return values.
foreach ([FALSE, NULL, TRUE, 0, '0', '', 1, '1', 'foobar', '1foobar'] as $default_value) {
// Only values that can be used for array indices are supported for
// #return_value, with the exception of integer 0, which is not supported.
// @see \Drupal\Core\Render\Element\Checkbox::processCheckbox().
foreach (['0', '', 1, '1', 'foobar', '1foobar'] as $return_value) {
$form_array = \Drupal::formBuilder()->getForm('\Drupal\form_test\Form\FormTestCheckboxTypeJugglingForm', $default_value, $return_value);
$form = \Drupal::service('renderer')->renderRoot($form_array);
if ($default_value === TRUE) {
$checked = TRUE;
}
elseif ($return_value === '0') {
$checked = ($default_value === '0');
}
elseif ($return_value === '') {
$checked = ($default_value === '');
}
elseif ($return_value === 1 || $return_value === '1') {
$checked = ($default_value === 1 || $default_value === '1');
}
elseif ($return_value === 'foobar') {
$checked = ($default_value === 'foobar');
}
elseif ($return_value === '1foobar') {
$checked = ($default_value === '1foobar');
}
$checked_in_html = strpos($form, 'checked') !== FALSE;
$message = format_string('#default_value is %default_value #return_value is %return_value.', ['%default_value' => var_export($default_value, TRUE), '%return_value' => var_export($return_value, TRUE)]);
$this->assertIdentical($checked, $checked_in_html, $message);
}
}
// Ensure that $form_state->getValues() is populated correctly for a
// checkboxes group that includes a 0-indexed array of options.
$results = json_decode($this->drupalPostForm('form-test/checkboxes-zero/1', [], 'Save'));
$this->assertIdentical($results->checkbox_off, [0, 0, 0], 'All three in checkbox_off are zeroes: off.');
$this->assertIdentical($results->checkbox_zero_default, ['0', 0, 0], 'The first choice is on in checkbox_zero_default');
$this->assertIdentical($results->checkbox_string_zero_default, ['0', 0, 0], 'The first choice is on in checkbox_string_zero_default');
$edit = ['checkbox_off[0]' => '0'];
$results = json_decode($this->drupalPostForm('form-test/checkboxes-zero/1', $edit, 'Save'));
$this->assertIdentical($results->checkbox_off, ['0', 0, 0], 'The first choice is on in checkbox_off but the rest is not');
// Ensure that each checkbox is rendered correctly for a checkboxes group
// that includes a 0-indexed array of options.
$this->drupalPostForm('form-test/checkboxes-zero/0', [], 'Save');
$checkboxes = $this->xpath('//input[@type="checkbox"]');
$this->assertIdentical(count($checkboxes), 9, 'Correct number of checkboxes found.');
foreach ($checkboxes as $checkbox) {
$checked = isset($checkbox['checked']);
$name = (string) $checkbox['name'];
$this->assertIdentical($checked, $name == 'checkbox_zero_default[0]' || $name == 'checkbox_string_zero_default[0]', format_string('Checkbox %name correctly checked', ['%name' => $name]));
}
$edit = ['checkbox_off[0]' => '0'];
$this->drupalPostForm('form-test/checkboxes-zero/0', $edit, 'Save');
$checkboxes = $this->xpath('//input[@type="checkbox"]');
$this->assertIdentical(count($checkboxes), 9, 'Correct number of checkboxes found.');
foreach ($checkboxes as $checkbox) {
$checked = isset($checkbox['checked']);
$name = (string) $checkbox['name'];
$this->assertIdentical($checked, $name == 'checkbox_off[0]' || $name == 'checkbox_zero_default[0]' || $name == 'checkbox_string_zero_default[0]', format_string('Checkbox %name correctly checked', ['%name' => $name]));
}
}
}