class UserRolesAccessPolicyTest

class UserRolesAccessPolicyTest extends UnitTestCase {
    
    /**
     * The access policy to test.
     *
     * @var \Drupal\Core\Session\UserRolesAccessPolicy
     */
    protected $accessPolicy;
    
    /**
     * The mocked entity type manager service.
     *
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface|\Prophecy\Prophecy\ObjectProphecy
     */
    protected $entityTypeManager;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->entityTypeManager = $this->prophesize(EntityTypeManagerInterface::class);
        $this->accessPolicy = new UserRolesAccessPolicy($this->entityTypeManager
            ->reveal());
        $cache_context_manager = $this->prophesize(CacheContextsManager::class);
        $cache_context_manager->assertValidTokens(Argument::any())
            ->willReturn(TRUE);
        $container = $this->prophesize(ContainerInterface::class);
        $container->get('cache_contexts_manager')
            ->willReturn($cache_context_manager->reveal());
        \Drupal::setContainer($container->reveal());
    }
    
    /**
     * @covers ::applies
     */
    public function testApplies() : void {
        $this->assertTrue($this->accessPolicy
            ->applies(AccessPolicyInterface::SCOPE_DRUPAL));
        $this->assertFalse($this->accessPolicy
            ->applies('another scope'));
        $this->assertFalse($this->accessPolicy
            ->applies($this->randomString()));
    }
    
    /**
     * Tests the calculatePermissions method.
     *
     * @param array $roles
     *   The roles to grant the account.
     * @param bool $expect_admin_rights
     *   Whether to expect admin rights to be granted.
     *
     * @covers ::calculatePermissions
     * @dataProvider calculatePermissionsProvider
     */
    public function testCalculatePermissions(array $roles, bool $expect_admin_rights) : void {
        $account = $this->prophesize(AccountInterface::class);
        $account->getRoles()
            ->willReturn(array_keys($roles));
        $total_permissions = $cache_tags = $mocked_roles = [];
        foreach ($roles as $role_id => $role) {
            $total_permissions = array_merge($total_permissions, $role['permissions']);
            $cache_tags[] = "config:user.role.{$role_id}";
            $mocked_role = $this->prophesize(RoleInterface::class);
            $mocked_role->getPermissions()
                ->willReturn($role['permissions']);
            $mocked_role->isAdmin()
                ->willReturn($role['is_admin']);
            $mocked_role->getCacheTags()
                ->willReturn([
                "config:user.role.{$role_id}",
            ]);
            $mocked_role->getCacheContexts()
                ->willReturn([]);
            $mocked_role->getCacheMaxAge()
                ->willReturn(Cache::PERMANENT);
            $mocked_roles[$role_id] = $mocked_role->reveal();
        }
        $role_storage = $this->prophesize(RoleStorageInterface::class);
        $role_storage->loadMultiple(array_keys($roles))
            ->willReturn($mocked_roles);
        $this->entityTypeManager
            ->getStorage('user_role')
            ->willReturn($role_storage->reveal());
        $calculated_permissions = $this->accessPolicy
            ->calculatePermissions($account->reveal(), AccessPolicyInterface::SCOPE_DRUPAL);
        if (!empty($roles)) {
            $this->assertCount(1, $calculated_permissions->getItems(), 'Only one calculated permissions item was added.');
            $item = $calculated_permissions->getItem();
            if ($expect_admin_rights) {
                $this->assertSame([], $item->getPermissions());
                $this->assertTrue($item->isAdmin());
            }
            else {
                $this->assertSame($total_permissions, $item->getPermissions());
                $this->assertFalse($item->isAdmin());
            }
        }
        $this->assertSame($cache_tags, $calculated_permissions->getCacheTags());
        $this->assertSame([
            'user.roles',
        ], $calculated_permissions->getCacheContexts());
        $this->assertSame(Cache::PERMANENT, $calculated_permissions->getCacheMaxAge());
    }
    
    /**
     * Data provider for testCalculatePermissions.
     *
     * @return array
     *   A list of test scenarios.
     */
    public static function calculatePermissionsProvider() : array {
        $cases['no-roles'] = [
            'roles' => [],
            'expect_admin_rights' => FALSE,
        ];
        $cases['some-roles'] = [
            'roles' => [
                'role_foo' => [
                    'permissions' => [
                        'foo',
                    ],
                    'is_admin' => FALSE,
                ],
                'role_bar' => [
                    'permissions' => [
                        'bar',
                    ],
                    'is_admin' => FALSE,
                ],
            ],
            'expect_admin_rights' => FALSE,
        ];
        $cases['admin-role'] = [
            'roles' => [
                'role_foo' => [
                    'permissions' => [
                        'foo',
                    ],
                    'is_admin' => FALSE,
                ],
                'role_bar' => [
                    'permissions' => [
                        'bar',
                    ],
                    'is_admin' => TRUE,
                ],
            ],
            'expect_admin_rights' => TRUE,
        ];
        return $cases;
    }
    
    /**
     * Tests the alterPermissions method.
     *
     * @covers ::alterPermissions
     */
    public function testAlterPermissions() : void {
        $account = $this->prophesize(AccountInterface::class);
        $calculated_permissions = new RefinableCalculatedPermissions();
        $calculated_permissions->addItem(new CalculatedPermissionsItem([
            'foo',
        ]));
        $calculated_permissions->addCacheTags([
            'bar',
        ]);
        $calculated_permissions->addCacheContexts([
            'baz',
        ]);
        $this->accessPolicy
            ->alterPermissions($account->reveal(), AccessPolicyInterface::SCOPE_DRUPAL, $calculated_permissions);
        $this->assertSame([
            'foo',
        ], $calculated_permissions->getItem()
            ->getPermissions());
        $this->assertSame([
            'bar',
        ], $calculated_permissions->getCacheTags());
        $this->assertSame([
            'baz',
        ], $calculated_permissions->getCacheContexts());
    }
    
    /**
     * Tests the getPersistentCacheContexts method.
     *
     * @covers ::getPersistentCacheContexts
     */
    public function testGetPersistentCacheContexts() : void {
        $this->assertSame([
            'user.roles',
        ], $this->accessPolicy
            ->getPersistentCacheContexts(AccessPolicyInterface::SCOPE_DRUPAL));
    }

}