<?php

/**

 * @file

 * Tests for the update system.

 */

/**

 * Tests for the update dependency ordering system.

 */

class UpdateDependencyOrderingTestCase extends DrupalWebTestCase {

  public static function getInfo() {

    return array(

      'name' => 'Update dependency ordering',

      'description' => 'Test that update functions are run in the proper order.',

      'group' => 'Update API',

    );

  }

  function setUp() {

    parent::setUp('update_test_1', 'update_test_2', 'update_test_3');

    require_once DRUPAL_ROOT . '/includes/update.inc';

  }

  /**

   * Test that updates within a single module run in the correct order.

   */

  function testUpdateOrderingSingleModule() {

    $starting_updates = array(

      'update_test_1' => 7000,

    );

    $expected_updates = array(

      'update_test_1_update_7000',

      'update_test_1_update_7001',

      'update_test_1_update_7002',

    );

    $actual_updates = array_keys(update_resolve_dependencies($starting_updates));

    $this->assertEqual($expected_updates, $actual_updates, 'Updates within a single module run in the correct order.');

  }

  /**

   * Test that dependencies between modules are resolved correctly.

   */

  function testUpdateOrderingModuleInterdependency() {

    $starting_updates = array(

      'update_test_2' => 7000,

      'update_test_3' => 7000,

    );

    $update_order = array_keys(update_resolve_dependencies($starting_updates));

    // Make sure that each dependency is satisfied.

    $first_dependency_satisfied = array_search('update_test_2_update_7000', $update_order) < array_search('update_test_3_update_7000', $update_order);

    $this->assertTrue($first_dependency_satisfied, 'The dependency of the second module on the first module is respected by the update function order.');

    $second_dependency_satisfied = array_search('update_test_3_update_7000', $update_order) < array_search('update_test_2_update_7001', $update_order);

    $this->assertTrue($second_dependency_satisfied, 'The dependency of the first module on the second module is respected by the update function order.');

  }

}

/**

 * Tests for missing update dependencies.

 */

class UpdateDependencyMissingTestCase extends DrupalWebTestCase {

  public static function getInfo() {

    return array(

      'name' => 'Missing update dependencies',

      'description' => 'Test that missing update dependencies are correctly flagged.',

      'group' => 'Update API',

    );

  }

  function setUp() {

    // Only install update_test_2.module, even though its updates have a

    // dependency on update_test_3.module.

    parent::setUp('update_test_2');

    require_once DRUPAL_ROOT . '/includes/update.inc';

  }

  function testMissingUpdate() {

    $starting_updates = array(

      'update_test_2' => 7000,

    );

    $update_graph = update_resolve_dependencies($starting_updates);

    $this->assertTrue($update_graph['update_test_2_update_7000']['allowed'], "The module's first update function is allowed to run, since it does not have any missing dependencies.");

    $this->assertFalse($update_graph['update_test_2_update_7001']['allowed'], "The module's second update function is not allowed to run, since it has a direct dependency on a missing update.");

    $this->assertFalse($update_graph['update_test_2_update_7002']['allowed'], "The module's third update function is not allowed to run, since it has an indirect dependency on a missing update.");

  }

}

/**

 * Tests for the invocation of hook_update_dependencies().

 */

class UpdateDependencyHookInvocationTestCase extends DrupalWebTestCase {

  public static function getInfo() {

    return array(

      'name' => 'Update dependency hook invocation',

      'description' => 'Test that the hook invocation for determining update dependencies works correctly.',

      'group' => 'Update API',

    );

  }

  function setUp() {

    parent::setUp('update_test_1', 'update_test_2');

    require_once DRUPAL_ROOT . '/includes/update.inc';

  }

  /**

   * Test the structure of the array returned by hook_update_dependencies().

   */

  function testHookUpdateDependencies() {

    $update_dependencies = update_retrieve_dependencies();

    $this->assertTrue($update_dependencies['system'][7000]['update_test_1'] == 7000, 'An update function that has a dependency on two separate modules has the first dependency recorded correctly.');

    $this->assertTrue($update_dependencies['system'][7000]['update_test_2'] == 7001, 'An update function that has a dependency on two separate modules has the second dependency recorded correctly.');

    $this->assertTrue($update_dependencies['system'][7001]['update_test_1'] == 7002, 'An update function that depends on more than one update from the same module only has the dependency on the higher-numbered update function recorded.');

  }

}