diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/field/tests/field_test.field.inc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/field/tests/field_test.field.inc	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,413 @@
+<?php
+
+/**
+ * @file
+ * Defines a field type and its formatters and widgets.
+ */
+
+/**
+ * Implements hook_field_info().
+ */
+function field_test_field_info() {
+  return array(
+    'test_field' => array(
+      'label' => t('Test field'),
+      'description' => t('Dummy field type used for tests.'),
+      'settings' => array(
+        'test_field_setting' => 'dummy test string',
+        'changeable' => 'a changeable field setting',
+        'unchangeable' => 'an unchangeable field setting',
+      ),
+      'instance_settings' => array(
+        'test_instance_setting' => 'dummy test string',
+        'test_hook_field_load' => FALSE,
+      ),
+      'default_widget' => 'test_field_widget',
+      'default_formatter' => 'field_test_default',
+    ),
+    'shape' => array(
+      'label' => t('Shape'),
+      'description' => t('Another dummy field type.'),
+      'settings' => array(
+        'foreign_key_name' => 'shape',
+      ),
+      'instance_settings' => array(),
+      'default_widget' => 'test_field_widget',
+      'default_formatter' => 'field_test_default',
+    ),
+    'hidden_test_field' => array(
+      'no_ui' => TRUE,
+      'label' => t('Hidden from UI test field'),
+      'description' => t('Dummy hidden field type used for tests.'),
+      'settings' => array(),
+      'instance_settings' => array(),
+      'default_widget' => 'test_field_widget',
+      'default_formatter' => 'field_test_default',
+    ),
+  );
+}
+
+/**
+ * Implements hook_field_update_forbid().
+ */
+function field_test_field_update_forbid($field, $prior_field, $has_data) {
+  if ($field['type'] == 'test_field' && $field['settings']['unchangeable'] != $prior_field['settings']['unchangeable']) {
+    throw new FieldException("field_test 'unchangeable' setting cannot be changed'");
+  }
+}
+
+/**
+ * Implements hook_field_load().
+ */
+function field_test_field_load($entity_type, $entities, $field, $instances, $langcode, &$items, $age) {
+  $args = func_get_args();
+  field_test_memorize(__FUNCTION__, $args);
+
+  foreach ($items as $id => $item) {
+    // To keep the test non-intrusive, only act for instances with the
+    // test_hook_field_load setting explicitly set to TRUE.
+    if ($instances[$id]['settings']['test_hook_field_load']) {
+      foreach ($item as $delta => $value) {
+        // Don't add anything on empty values.
+        if ($value) {
+          $items[$id][$delta]['additional_key'] = 'additional_value';
+        }
+      }
+    }
+  }
+}
+
+/**
+ * Implements hook_field_insert().
+ */
+function field_test_field_insert($entity_type, $entity, $field, $instance, $items) {
+  $args = func_get_args();
+  field_test_memorize(__FUNCTION__, $args);
+}
+
+/**
+ * Implements hook_field_update().
+ */
+function field_test_field_update($entity_type, $entity, $field, $instance, $items) {
+  $args = func_get_args();
+  field_test_memorize(__FUNCTION__, $args);
+}
+
+/**
+ * Implements hook_field_delete().
+ */
+function field_test_field_delete($entity_type, $entity, $field, $instance, $items) {
+  $args = func_get_args();
+  field_test_memorize(__FUNCTION__, $args);
+}
+
+/**
+ * Implements hook_field_validate().
+ *
+ * Possible error codes:
+ * - 'field_test_invalid': The value is invalid.
+ */
+function field_test_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
+  $args = func_get_args();
+  field_test_memorize(__FUNCTION__, $args);
+
+  foreach ($items as $delta => $item) {
+    if ($item['value'] == -1) {
+      $errors[$field['field_name']][$langcode][$delta][] = array(
+        'error' => 'field_test_invalid',
+        'message' => t('%name does not accept the value -1.', array('%name' => $instance['label'])),
+      );
+    }
+  }
+}
+
+/**
+ * Implements hook_field_is_empty().
+ */
+function field_test_field_is_empty($item, $field) {
+  return empty($item['value']);
+}
+
+/**
+ * Implements hook_field_settings_form().
+ */
+function field_test_field_settings_form($field, $instance, $has_data) {
+  $settings = $field['settings'];
+
+  $form['test_field_setting'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Field test field setting'),
+    '#default_value' => $settings['test_field_setting'],
+    '#required' => FALSE,
+    '#description' => t('A dummy form element to simulate field setting.'),
+  );
+
+  return $form;
+}
+
+/**
+ * Implements hook_field_instance_settings_form().
+ */
+function field_test_field_instance_settings_form($field, $instance) {
+  $settings = $instance['settings'];
+
+  $form['test_instance_setting'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Field test field instance setting'),
+    '#default_value' => $settings['test_instance_setting'],
+    '#required' => FALSE,
+    '#description' => t('A dummy form element to simulate field instance setting.'),
+  );
+
+  return $form;
+}
+
+/**
+ * Implements hook_field_widget_info().
+ */
+function field_test_field_widget_info() {
+  return array(
+    'test_field_widget' => array(
+      'label' => t('Test field'),
+      'field types' => array('test_field', 'hidden_test_field'),
+      'settings' => array('test_widget_setting' => 'dummy test string'),
+    ),
+    'test_field_widget_multiple' => array(
+      'label' => t('Test field 1'),
+      'field types' => array('test_field'),
+      'settings' => array('test_widget_setting_multiple' => 'dummy test string'),
+      'behaviors' => array(
+        'multiple values' => FIELD_BEHAVIOR_CUSTOM,
+      ),
+    ),
+  );
+}
+
+/**
+ * Implements hook_field_widget_form().
+ */
+function field_test_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
+  switch ($instance['widget']['type']) {
+    case 'test_field_widget':
+      $element += array(
+        '#type' => 'textfield',
+        '#default_value' => isset($items[$delta]['value']) ? $items[$delta]['value'] : '',
+      );
+      return array('value' => $element);
+
+    case 'test_field_widget_multiple':
+      $values = array();
+      foreach ($items as $delta => $value) {
+        $values[] = $value['value'];
+      }
+      $element += array(
+        '#type' => 'textfield',
+        '#default_value' => implode(', ', $values),
+        '#element_validate' => array('field_test_widget_multiple_validate'),
+      );
+      return $element;
+  }
+}
+
+/**
+ * Form element validation handler for 'test_field_widget_multiple' widget.
+ */
+function field_test_widget_multiple_validate($element, &$form_state) {
+  $values = array_map('trim', explode(',', $element['#value']));
+  $items = array();
+  foreach ($values as $value) {
+    $items[] = array('value' => $value);
+  }
+  form_set_value($element, $items, $form_state);
+}
+
+/**
+ * Implements hook_field_widget_error().
+ */
+function field_test_field_widget_error($element, $error, $form, &$form_state) {
+  // @todo No easy way to differenciate widget types, we should receive it as a
+  // parameter.
+  if (isset($element['value'])) {
+    // Widget is test_field_widget.
+    $error_element = $element['value'];
+  }
+  else {
+    // Widget is test_field_widget_multiple.
+    $error_element = $element;
+  }
+
+  form_error($error_element, $error['message']);
+}
+
+/**
+ * Implements hook_field_widget_settings_form().
+ */
+function field_test_field_widget_settings_form($field, $instance) {
+  $widget = $instance['widget'];
+  $settings = $widget['settings'];
+
+  $form['test_widget_setting'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Field test field widget setting'),
+    '#default_value' => $settings['test_widget_setting'],
+    '#required' => FALSE,
+    '#description' => t('A dummy form element to simulate field widget setting.'),
+  );
+
+  return $form;
+}
+
+/**
+ * Implements hook_field_formatter_info().
+ */
+function field_test_field_formatter_info() {
+  return array(
+    'field_test_default' => array(
+      'label' => t('Default'),
+      'description' => t('Default formatter'),
+      'field types' => array('test_field'),
+      'settings' => array(
+        'test_formatter_setting' => 'dummy test string',
+      ),
+    ),
+    'field_test_multiple' => array(
+      'label' => t('Multiple'),
+      'description' => t('Multiple formatter'),
+      'field types' => array('test_field'),
+      'settings' => array(
+        'test_formatter_setting_multiple' => 'dummy test string',
+      ),
+    ),
+    'field_test_with_prepare_view' => array(
+      'label' => t('Tests hook_field_formatter_prepare_view()'),
+      'field types' => array('test_field'),
+      'settings' => array(
+        'test_formatter_setting_additional' => 'dummy test string',
+      ),
+    ),
+  );
+}
+
+/**
+ * Implements hook_field_formatter_settings_form().
+ */
+function field_test_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
+  $display = $instance['display'][$view_mode];
+  $settings = $display['settings'];
+
+  $element = array();
+
+  // The name of the setting depends on the formatter type.
+  $map = array(
+    'field_test_default' => 'test_formatter_setting',
+    'field_test_multiple' => 'test_formatter_setting_multiple',
+    'field_test_with_prepare_view' => 'test_formatter_setting_additional',
+  );
+
+  if (isset($map[$display['type']])) {
+    $name = $map[$display['type']];
+
+    $element[$name] = array(
+      '#title' => t('Setting'),
+      '#type' => 'textfield',
+      '#size' => 20,
+      '#default_value' => $settings[$name],
+      '#required' => TRUE,
+    );
+  }
+
+  return $element;
+}
+
+/**
+ * Implements hook_field_formatter_settings_summary().
+ */
+function field_test_field_formatter_settings_summary($field, $instance, $view_mode) {
+  $display = $instance['display'][$view_mode];
+  $settings = $display['settings'];
+
+  $summary = '';
+
+  // The name of the setting depends on the formatter type.
+  $map = array(
+    'field_test_default' => 'test_formatter_setting',
+    'field_test_multiple' => 'test_formatter_setting_multiple',
+    'field_test_with_prepare_view' => 'test_formatter_setting_additional',
+  );
+
+  if (isset($map[$display['type']])) {
+    $name = $map[$display['type']];
+    $summary = t('@setting: @value', array('@setting' => $name, '@value' => $settings[$name]));
+  }
+
+  return $summary;
+}
+
+/**
+ * Implements hook_field_formatter_prepare_view().
+ */
+function field_test_field_formatter_prepare_view($entity_type, $entities, $field, $instances, $langcode, &$items, $displays) {
+  foreach ($items as $id => $item) {
+    // To keep the test non-intrusive, only act on the
+    // 'field_test_with_prepare_view' formatter.
+    if ($displays[$id]['type'] == 'field_test_with_prepare_view') {
+      foreach ($item as $delta => $value) {
+        // Don't add anything on empty values.
+        if ($value) {
+          $items[$id][$delta]['additional_formatter_value'] = $value['value'] + 1;
+        }
+      }
+    }
+  }
+}
+
+/**
+ * Implements hook_field_formatter_view().
+ */
+function field_test_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
+  $element = array();
+  $settings = $display['settings'];
+
+  switch ($display['type']) {
+    case 'field_test_default':
+      foreach ($items as $delta => $item) {
+        $element[$delta] = array('#markup' => $settings['test_formatter_setting'] . '|' . $item['value']);
+      }
+      break;
+
+    case 'field_test_with_prepare_view':
+      foreach ($items as $delta => $item) {
+        $element[$delta] = array('#markup' => $settings['test_formatter_setting_additional'] . '|' . $item['value'] . '|' . $item['additional_formatter_value']);
+      }
+      break;
+
+    case 'field_test_multiple':
+      if (!empty($items)) {
+        $array = array();
+        foreach ($items as $delta => $item) {
+          $array[] = $delta . ':' . $item['value'];
+        }
+        $element[0] = array('#markup' => $settings['test_formatter_setting_multiple'] . '|' . implode('|', $array));
+      }
+      break;
+  }
+
+  return $element;
+}
+
+/**
+ * Sample 'default value' callback.
+ */
+function field_test_default_value($entity_type, $entity, $field, $instance) {
+  return array(array('value' => 99));
+}
+
+/**
+ * Implements hook_field_access().
+ */
+function field_test_field_access($op, $field, $entity_type, $entity, $account) {
+  if ($field['field_name'] == "field_no_{$op}_access") {
+    return FALSE;
+  }
+  return TRUE;
+}