Test data persistence via the session_test module callbacks. Also tests drupal_session_count() since session data is already generated here.
function testDataPersistence() {
$user = $this
->drupalCreateUser(array(
'access content',
));
// Enable sessions.
$this
->sessionReset($user->uid);
$this
->drupalLogin($user);
$value_1 = $this
->randomName();
$this
->drupalGet('session-test/set/' . $value_1);
$this
->assertText($value_1, 'The session value was stored.', t('Session'));
$this
->drupalGet('session-test/get');
$this
->assertText($value_1, 'Session correctly returned the stored data for an authenticated user.', t('Session'));
// Attempt to write over val_1. If drupal_save_session(FALSE) is working.
// properly, val_1 will still be set.
$value_2 = $this
->randomName();
$this
->drupalGet('session-test/no-set/' . $value_2);
$this
->assertText($value_2, 'The session value was correctly passed to session-test/no-set.', t('Session'));
$this
->drupalGet('session-test/get');
$this
->assertText($value_1, 'Session data is not saved for drupal_save_session(FALSE).', t('Session'));
// Switch browser cookie to anonymous user, then back to user 1.
$this
->sessionReset();
$this
->sessionReset($user->uid);
$this
->assertText($value_1, 'Session data persists through browser close.', t('Session'));
// Logout the user and make sure the stored value no longer persists.
$this
->drupalLogout();
$this
->sessionReset();
$this
->drupalGet('session-test/get');
$this
->assertNoText($value_1, "After logout, previous user's session data is not available.", t('Session'));
// Now try to store some data as an anonymous user.
$value_3 = $this
->randomName();
$this
->drupalGet('session-test/set/' . $value_3);
$this
->assertText($value_3, 'Session data stored for anonymous user.', t('Session'));
$this
->drupalGet('session-test/get');
$this
->assertText($value_3, 'Session correctly returned the stored data for an anonymous user.', t('Session'));
// Try to store data when drupal_save_session(FALSE).
$value_4 = $this
->randomName();
$this
->drupalGet('session-test/no-set/' . $value_4);
$this
->assertText($value_4, 'The session value was correctly passed to session-test/no-set.', t('Session'));
$this
->drupalGet('session-test/get');
$this
->assertText($value_3, 'Session data is not saved for drupal_save_session(FALSE).', t('Session'));
// Login, the data should persist.
$this
->drupalLogin($user);
$this
->sessionReset($user->uid);
$this
->drupalGet('session-test/get');
$this
->assertNoText($value_1, 'Session has persisted for an authenticated user after logging out and then back in.', t('Session'));
// Change session and create another user.
$user2 = $this
->drupalCreateUser(array(
'access content',
));
$this
->sessionReset($user2->uid);
$this
->drupalLogin($user2);
}