BootstrapResettableStaticTestCase

class BootstrapResettableStaticTestCase extends DrupalUnitTestCase {

  public static function getInfo() {
    return array(
      'name' => 'Resettable static variables test', 
      'description' => 'Test that drupal_static() and drupal_static_reset() work.', 
      'group' => 'Bootstrap',
    );
  }

  /**
   * Test that a variable reference returned by drupal_static() gets reset when
   * drupal_static_reset() is called.
   */
  function testDrupalStatic() {
    $name = __CLASS__ . '_' . __METHOD__;
    $var = &drupal_static($name, 'foo');
    $this->assertEqual($var, 'foo', t('Variable returned by drupal_static() was set to its default.'));

    // Call the specific reset and the global reset each twice to ensure that
    // multiple resets can be issued without odd side effects.
    $var = 'bar';
    drupal_static_reset($name);
    $this->assertEqual($var, 'foo', t('Variable was reset after first invocation of name-specific reset.'));
    $var = 'bar';
    drupal_static_reset($name);
    $this->assertEqual($var, 'foo', t('Variable was reset after second invocation of name-specific reset.'));
    $var = 'bar';
    drupal_static_reset();
    $this->assertEqual($var, 'foo', t('Variable was reset after first invocation of global reset.'));
    $var = 'bar';
    drupal_static_reset();
    $this->assertEqual($var, 'foo', t('Variable was reset after second invocation of global reset.'));
  }
}