function FieldTranslationsTestCase::testFieldDisplayLanguage

Tests display language logic for translatable fields.

File

modules/field/tests/field.test, line 3335

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');
}