function FileFieldWidgetTestCase::testMultiValuedWidget

Tests upload and remove buttons for multiple multi-valued File fields.

File

modules/file/tests/file.test, line 776

Class

FileFieldWidgetTestCase

Tests file field widget.

Code

function testMultiValuedWidget() {
    // Use 'page' instead of 'article', so that the 'article' image field does
    // not conflict with this test. If in the future the 'page' type gets its
    // own default file or image field, this test can be made more robust by
    // using a custom node type.
    $type_name = 'page';
    $field_name = strtolower($this->randomName());
    $field_name2 = strtolower($this->randomName());
    $this->createFileField($field_name, $type_name, array(
        'cardinality' => 3,
    ));
    $this->createFileField($field_name2, $type_name, array(
        'cardinality' => 3,
    ));
    $field = field_info_field($field_name);
    $instance = field_info_instance('node', $field_name, $type_name);
    $field2 = field_info_field($field_name2);
    $instance2 = field_info_instance('node', $field_name2, $type_name);
    $test_file = $this->getTestFile('text');
    foreach (array(
        'nojs',
        'js',
    ) as $type) {
        // Visit the node creation form, and upload 3 files for each field. Since
        // the field has cardinality of 3, ensure the "Upload" button is displayed
        // until after the 3rd file, and after that, isn't displayed. Because
        // SimpleTest triggers the last button with a given name, so upload to the
        // second field first.
        // @todo This is only testing a non-Ajax upload, because drupalPostAJAX()
        //   does not yet emulate jQuery's file upload.
        //
        $this->drupalGet("node/add/{$type_name}");
        foreach (array(
            $field_name2,
            $field_name,
        ) as $each_field_name) {
            for ($delta = 0; $delta < 3; $delta++) {
                $edit = array(
                    'files[' . $each_field_name . '_' . LANGUAGE_NONE . '_' . $delta . ']' => drupal_realpath($test_file->uri),
                );
                // drupalPost() takes a $submit parameter that is the value of the
                // button whose click we want to emulate. Since we have multiple
                // buttons with the value "Upload", and want to control which one we
                // use, we change the value of the other ones to something else.
                // Since non-clicked buttons aren't included in the submitted POST
                // data, and since drupalPost() will result in $this being updated
                // with a newly rebuilt form, this doesn't cause problems. Note that
                // $buttons is an array of SimpleXMLElement objects passed by
                // reference so modifications to each button will affect
                // \DrupalWebTestCase::handleForm().
                $buttons = $this->xpath('//input[@type="submit" and @value="Upload"]');
                $button_name = $each_field_name . '_' . LANGUAGE_NONE . '_' . $delta . '_upload_button';
                foreach ($buttons as $button) {
                    if ($button['name'] != $button_name) {
                        $button['value'] = 'DUMMY';
                    }
                }
                // If the Upload button doesn't exist, drupalPost() will automatically
                // fail with an assertion message.
                $this->drupalPost(NULL, $edit, t('Upload'));
            }
        }
        $this->assertNoFieldByXpath('//input[@type="submit"]', t('Upload'), 'After uploading 3 files for each field, the "Upload" button is no longer displayed.');
        $num_expected_remove_buttons = 6;
        foreach (array(
            $field_name,
            $field_name2,
        ) as $current_field_name) {
            // How many uploaded files for the current field are remaining.
            $remaining = 3;
            // Test clicking each "Remove" button. For extra robustness, test them out
            // of sequential order. They are 0-indexed, and get renumbered after each
            // iteration, so array(1, 1, 0) means:
            // - First remove the 2nd file.
            // - Then remove what is then the 2nd file (was originally the 3rd file).
            // - Then remove the first file.
            foreach (array(
                1,
                1,
                0,
            ) as $delta) {
                // Ensure we have the expected number of Remove buttons, and that they
                // are numbered sequentially.
                $buttons = $this->xpath('//input[@type="submit" and @value="Remove"]');
                $this->assertTrue(is_array($buttons) && count($buttons) === $num_expected_remove_buttons, format_string('There are %n "Remove" buttons displayed (JSMode=%type).', array(
                    '%n' => $num_expected_remove_buttons,
                    '%type' => $type,
                )));
                foreach ($buttons as $i => $button) {
                    $key = $i >= $remaining ? $i - $remaining : $i;
                    $check_field_name = $field_name2;
                    if ($current_field_name == $field_name && $i < $remaining) {
                        $check_field_name = $field_name;
                    }
                    $this->assertIdentical((string) $button['name'], $check_field_name . '_' . LANGUAGE_NONE . '_' . $key . '_remove_button');
                }
                // "Click" the remove button (emulating either a nojs or js submission).
                $button_name = $current_field_name . '_' . LANGUAGE_NONE . '_' . $delta . '_remove_button';
                switch ($type) {
                    case 'nojs':
                        // Same workaround for multiple buttons with the value "Remove" as
                        // we did for the "Upload" buttons above.
                        foreach ($buttons as $button) {
                            if ($button['name'] != $button_name) {
                                $button['value'] = 'DUMMY';
                            }
                        }
                        $this->drupalPost(NULL, array(), t('Remove'));
                        break;
                    case 'js':
                        // drupalPostAJAX() lets us target the button precisely, so we don't
                        // require the workaround used above for nojs.
                        $this->drupalPostAJAX(NULL, array(), array(
                            $button_name => t('Remove'),
                        ));
                        break;
                }
                $num_expected_remove_buttons--;
                $remaining--;
                // Ensure an "Upload" button for the current field is displayed with the
                // correct name.
                $upload_button_name = $current_field_name . '_' . LANGUAGE_NONE . '_' . $remaining . '_upload_button';
                $buttons = $this->xpath('//input[@type="submit" and @value="Upload" and @name=:name]', array(
                    ':name' => $upload_button_name,
                ));
                $this->assertTrue(is_array($buttons) && count($buttons) == 1, format_string('The upload button is displayed with the correct name (JSMode=%type).', array(
                    '%type' => $type,
                )));
                // Ensure only at most one button per field is displayed.
                $buttons = $this->xpath('//input[@type="submit" and @value="Upload"]');
                $expected = $current_field_name == $field_name ? 1 : 2;
                $this->assertTrue(is_array($buttons) && count($buttons) == $expected, format_string('After removing a file, only one "Upload" button for each possible field is displayed (JSMode=%type).', array(
                    '%type' => $type,
                )));
            }
        }
        // Ensure the page now has no Remove buttons.
        $this->assertNoFieldByXPath('//input[@type="submit"]', t('Remove'), format_string('After removing all files, there is no "Remove" button displayed (JSMode=%type).', array(
            '%type' => $type,
        )));
        // Save the node and ensure it does not have any files.
        $this->drupalPost(NULL, array(
            'title' => $this->randomName(),
        ), t('Save'));
        $matches = array();
        preg_match('/node\\/([0-9]+)/', $this->getUrl(), $matches);
        $nid = $matches[1];
        $node = node_load($nid, NULL, TRUE);
        $this->assertTrue(empty($node->{$field_name}[LANGUAGE_NONE][0]['fid']), 'Node was successfully saved without any files.');
    }
}