Tests that there are no pending updates for the first test method.
function testNoPendingUpdates() {
// Ensure that for the first test method in a class, there are no pending
// updates. This tests a drupal_get_schema_versions() bug that previously
// led to the wrong schema version being recorded for the initial install
// of a child site during automated testing.
$this
->drupalLogin($this->update_user);
$this
->drupalGet($this->update_url, array(
'external' => TRUE,
));
$this
->drupalPost(NULL, array(), t('Continue'));
$this
->assertText(t('No pending updates.'), 'End of update process was reached.');
}