function FieldTranslationsTestCase::testFieldDisplayLanguage in Drupal 7

Tests display language logic for translatable fields.

File

modules/field/tests/field.test, line 3296

Tests for field.module.

Class

FieldTranslationsTestCase

Unit test class for the multilanguage fields logic.

Code

function testFieldDisplayLanguage() {
  $field_name = drupal_strtolower($this
    ->randomName() . '_field_name');
  $entity_type = 'test_entity';

  // We need an additional field here to properly test display language
  // suggestions.
  $field = array(
    'field_name' => $field_name,
    'type' => 'test_field',
    'cardinality' => 2,
    'translatable' => TRUE,
  );
  field_create_field($field);
  $instance = array(
    'field_name' => $field['field_name'],
    'entity_type' => $entity_type,
    'bundle' => 'test_bundle',
  );
  field_create_instance($instance);
  $entity = field_test_create_stub_entity(1, 1, $this->instance['bundle']);
  $instances = field_info_instances($entity_type, $this->instance['bundle']);
  $enabled_languages = field_content_languages();
  $languages = array();

  // Generate field translations for languages different from the first
  // enabled.
  foreach ($instances as $instance) {
    $field_name = $instance['field_name'];
    $field = field_info_field($field_name);
    do {

      // Index 0 is reserved for the requested language, this way we ensure
      // that no field is actually populated with it.
      $langcode = $enabled_languages[mt_rand(1, count($enabled_languages) - 1)];
    } while (isset($languages[$langcode]));
    $languages[$langcode] = TRUE;
    $entity->{$field_name}[$langcode] = $this
      ->_generateTestFieldValues($field['cardinality']);
  }

  // Test multiple-fields display languages for untranslatable entities.
  field_test_entity_info_translatable($entity_type, FALSE);
  drupal_static_reset('field_language');
  $requested_language = $enabled_languages[0];
  $display_language = field_language($entity_type, $entity, NULL, $requested_language);
  foreach ($instances as $instance) {
    $field_name = $instance['field_name'];
    $this
      ->assertTrue($display_language[$field_name] == LANGUAGE_NONE, format_string('The display language for field %field_name is %language.', array(
      '%field_name' => $field_name,
      '%language' => LANGUAGE_NONE,
    )));
  }

  // Test multiple-fields display languages for translatable entities.
  field_test_entity_info_translatable($entity_type, TRUE);
  drupal_static_reset('field_language');
  $display_language = field_language($entity_type, $entity, NULL, $requested_language);
  foreach ($instances as $instance) {
    $field_name = $instance['field_name'];
    $langcode = $display_language[$field_name];

    // As the requested language was not assinged to any field, if the
    // returned language is defined for the current field, core fallback rules
    // were successfully applied.
    $this
      ->assertTrue(isset($entity->{$field_name}[$langcode]) && $langcode != $requested_language, format_string('The display language for the field %field_name is %language.', array(
      '%field_name' => $field_name,
      '%language' => $langcode,
    )));
  }

  // Test single-field display language.
  drupal_static_reset('field_language');
  $langcode = field_language($entity_type, $entity, $this->field_name, $requested_language);
  $this
    ->assertTrue(isset($entity->{$this->field_name}[$langcode]) && $langcode != $requested_language, format_string('The display language for the (single) field %field_name is %language.', array(
    '%field_name' => $field_name,
    '%language' => $langcode,
  )));

  // Test field_language() basic behavior without language fallback.
  variable_set('field_test_language_fallback', FALSE);
  $entity->{$this->field_name}[$requested_language] = mt_rand(1, 127);
  drupal_static_reset('field_language');
  $display_language = field_language($entity_type, $entity, $this->field_name, $requested_language);
  $this
    ->assertEqual($display_language, $requested_language, 'Display language behave correctly when language fallback is disabled');
}