function FormTest::testFieldFormUnlimited

File

core/modules/field/tests/src/Functional/FormTest.php, line 254

Class

FormTest

Tests field form handling.

Namespace

Code

public function testFieldFormUnlimited() {
    $field_storage = $this->fieldStorageUnlimited;
    $field_name = $field_storage['field_name'];
    $this->field['field_name'] = $field_name;
    FieldStorageConfig::create($field_storage)->save();
    FieldConfig::create($this->field)
        ->save();
    \Drupal::service('entity_display.repository')->getFormDisplay($this->field['entity_type'], $this->field['bundle'])
        ->setComponent($field_name)
        ->save();
    // Display creation form -> 1 widget.
    $this->drupalGet('entity_test/add');
    $this->assertFieldByName("{$field_name}[0][value]", '', 'Widget 1 is displayed');
    $this->assertNoField("{$field_name}[1][value]", 'No extraneous widget is displayed');
    // Check if aria-describedby attribute is placed on multiple value widgets.
    $elements = $this->xpath('//table[@id="field-unlimited-values" and @aria-describedby="edit-field-unlimited--description"]');
    $this->assertTrue(isset($elements[0]), t('aria-describedby attribute is properly placed on multiple value widgets.'));
    // Press 'add more' button -> 2 widgets.
    $this->drupalPostForm(NULL, [], t('Add another item'));
    $this->assertFieldByName("{$field_name}[0][value]", '', 'Widget 1 is displayed');
    $this->assertFieldByName("{$field_name}[1][value]", '', 'New widget is displayed');
    $this->assertNoField("{$field_name}[2][value]", 'No extraneous widget is displayed');
    // TODO : check that non-field inputs are preserved ('title'), etc.
    // Yet another time so that we can play with more values -> 3 widgets.
    $this->drupalPostForm(NULL, [], t('Add another item'));
    // Prepare values and weights.
    $count = 3;
    $delta_range = $count - 1;
    $values = $weights = $pattern = $expected_values = [];
    $edit = [];
    for ($delta = 0; $delta <= $delta_range; $delta++) {
        // Assign unique random values and weights.
        do {
            $value = mt_rand(1, 127);
        } while (in_array($value, $values));
        do {
            $weight = mt_rand(-$delta_range, $delta_range);
        } while (in_array($weight, $weights));
        $edit["{$field_name}[{$delta}][value]"] = $value;
        $edit["{$field_name}[{$delta}][_weight]"] = $weight;
        // We'll need three slightly different formats to check the values.
        $values[$delta] = $value;
        $weights[$delta] = $weight;
        $field_values[$weight]['value'] = (string) $value;
        $pattern[$weight] = "<input [^>]*value=\"{$value}\" [^>]*";
    }
    // Press 'add more' button -> 4 widgets
    $this->drupalPostForm(NULL, $edit, t('Add another item'));
    for ($delta = 0; $delta <= $delta_range; $delta++) {
        $this->assertFieldByName("{$field_name}[{$delta}][value]", $values[$delta], "Widget {$delta} is displayed and has the right value");
        $this->assertFieldByName("{$field_name}[{$delta}][_weight]", $weights[$delta], "Widget {$delta} has the right weight");
    }
    ksort($pattern);
    $pattern = implode('.*', array_values($pattern));
    // Verify that the widgets are displayed in the correct order.
    $this->assertPattern("|{$pattern}|s");
    $this->assertFieldByName("{$field_name}[{$delta}][value]", '', "New widget is displayed");
    $this->assertFieldByName("{$field_name}[{$delta}][_weight]", $delta, "New widget has the right weight");
    $this->assertNoField("{$field_name}[" . ($delta + 1) . '][value]', 'No extraneous widget is displayed');
    // Submit the form and create the entity.
    $this->drupalPostForm(NULL, $edit, t('Save'));
    preg_match('|entity_test/manage/(\\d+)|', $this->getUrl(), $match);
    $id = $match[1];
    $this->assertText(t('entity_test @id has been created.', [
        '@id' => $id,
    ]), 'Entity was created');
    $entity = EntityTest::load($id);
    ksort($field_values);
    $field_values = array_values($field_values);
    $this->assertIdentical($entity->{$field_name}
        ->getValue(), $field_values, 'Field values were saved in the correct order');
    // Display edit form: check that the expected number of widgets is
    // displayed, with correct values change values, reorder, leave an empty
    // value in the middle.
    // Submit: check that the entity is updated with correct values
    // Re-submit: check that the field can be emptied.
    // Test with several multiple fields in a form
}