function FormsFormStorageTestCase::testCachedFormStorageValidation

Tests updating cached form storage during form validation.

If form caching is enabled and a form stores data in the form storage, then the form storage also has to be updated in case of a validation error in the form. This test re-uses the existing form for multi-step tests, but triggers a special #element_validate handler to update the form storage during form validation, while another, required element in the form triggers a form validation error.

File

modules/simpletest/tests/form.test, line 1214

Class

FormsFormStorageTestCase

Test the form storage on a multistep form.

Code

function testCachedFormStorageValidation() {
    // Request the form with 'cache' query parameter to enable form caching.
    $this->drupalGet('form_test/form-storage', array(
        'query' => array(
            'cache' => 1,
        ),
    ));
    // Skip step 1 of the multi-step form, since the first step copies over
    // 'title' into form storage, but we want to verify that changes in the form
    // storage are updated in the cache during form validation.
    $edit = array(
        'title' => 'foo',
    );
    $this->drupalPost(NULL, $edit, 'Continue submit');
    // In step 2, trigger a validation error for the required 'title' field, and
    // post the special 'change_title' value for the 'value' field, which
    // conditionally invokes the #element_validate handler to update the form
    // storage.
    $edit = array(
        'title' => '',
        'value' => 'change_title',
    );
    $this->drupalPost(NULL, $edit, 'Save');
    // At this point, the form storage should contain updated values, but we do
    // not see them, because the form has not been rebuilt yet due to the
    // validation error. Post again and verify that the rebuilt form contains
    // the values of the updated form storage.
    $this->drupalPost(NULL, array(
        'title' => 'foo',
        'value' => 'bar',
    ), 'Save');
    $this->assertText("The thing has been changed.", 'The altered form storage value was updated in cache and taken over.');
}