class ModuleInstallerTest

class ModuleInstallerTest extends KernelTestBase {
    
    /**
     * Tests that routes are rebuilt during install and uninstall of modules.
     *
     * @covers ::install
     * @covers ::uninstall
     */
    public function testRouteRebuild() : void {
        // Remove the routing table manually to ensure it can be created lazily
        // properly.
        Database::getConnection()->schema()
            ->dropTable('router');
        $this->container
            ->get('module_installer')
            ->install([
            'router_test',
        ]);
        $route = $this->container
            ->get('router.route_provider')
            ->getRouteByName('router_test.1');
        $this->assertEquals('/router_test/test1', $route->getPath());
        $this->container
            ->get('module_installer')
            ->uninstall([
            'router_test',
        ]);
        $this->expectException(RouteNotFoundException::class);
        $this->container
            ->get('router.route_provider')
            ->getRouteByName('router_test.1');
    }
    
    /**
     * Tests config changes by hook_install() are saved for dependent modules.
     *
     * @covers ::install
     */
    public function testConfigChangeOnInstall() : void {
        // Install the child module so the parent is installed automatically.
        $this->container
            ->get('module_installer')
            ->install([
            'module_handler_test_multiple_child',
        ]);
        $modules = $this->config('core.extension')
            ->get('module');
        $this->assertArrayHasKey('module_handler_test_multiple', $modules, 'Module module_handler_test_multiple is installed');
        $this->assertArrayHasKey('module_handler_test_multiple_child', $modules, 'Module module_handler_test_multiple_child is installed');
        $this->assertEquals(1, $modules['module_handler_test_multiple'], 'Weight of module_handler_test_multiple is set.');
        $this->assertEquals(1, $modules['module_handler_test_multiple_child'], 'Weight of module_handler_test_multiple_child is set.');
    }
    
    /**
     * Tests cache bins defined by modules are removed when uninstalled.
     *
     * @covers ::removeCacheBins
     */
    public function testCacheBinCleanup() : void {
        $schema = $this->container
            ->get('database')
            ->schema();
        $table = 'cache_module_cache_bin';
        $module_installer = $this->container
            ->get('module_installer');
        $module_installer->install([
            'module_cache_bin',
        ]);
        // Prime the bin.
        
        /** @var \Drupal\Core\Cache\CacheBackendInterface $cache_bin */
        $cache_bin = $this->container
            ->get('module_cache_bin.cache_bin');
        $cache_bin->set('foo', 'bar');
        // A database backend is used so there is a convenient way check whether the
        // backend is uninstalled.
        $this->assertTrue($schema->tableExists($table));
        $module_installer->uninstall([
            'module_cache_bin',
        ]);
        $this->assertFalse($schema->tableExists($table));
    }
    
    /**
     * Ensure that rebuilding the container in hook_install() works.
     */
    public function testKernelRebuildDuringHookInstall() : void {
        \Drupal::state()->set('module_test_install:rebuild_container', TRUE);
        $module_installer = $this->container
            ->get('module_installer');
        $this->assertTrue($module_installer->install([
            'module_test',
        ]));
    }
    
    /**
     * Tests install with a module with an invalid core version constraint.
     *
     * @dataProvider providerTestInvalidCoreInstall
     * @covers ::install
     */
    public function testInvalidCoreInstall($module_name, $install_dependencies) : void {
        $this->expectException(MissingDependencyException::class);
        $this->expectExceptionMessage("Unable to install modules: module '{$module_name}' is incompatible with this version of Drupal core.");
        $this->container
            ->get('module_installer')
            ->install([
            $module_name,
        ], $install_dependencies);
    }
    
    /**
     * Data provider for testInvalidCoreInstall().
     */
    public static function providerTestInvalidCoreInstall() {
        return [
            'no dependencies system_core_incompatible_semver_test' => [
                'system_core_incompatible_semver_test',
                FALSE,
            ],
            'install_dependencies system_core_incompatible_semver_test' => [
                'system_core_incompatible_semver_test',
                TRUE,
            ],
        ];
    }
    
    /**
     * Tests install with a dependency with an invalid core version constraint.
     *
     * @covers ::install
     */
    public function testDependencyInvalidCoreInstall() : void {
        $this->expectException(MissingDependencyException::class);
        $this->expectExceptionMessage("Unable to install modules: module 'system_incompatible_core_version_dependencies_test'. Its dependency module 'system_core_incompatible_semver_test' is incompatible with this version of Drupal core.");
        $this->container
            ->get('module_installer')
            ->install([
            'system_incompatible_core_version_dependencies_test',
        ]);
    }
    
    /**
     * Tests no dependencies install with a dependency with invalid core.
     *
     * @covers ::install
     */
    public function testDependencyInvalidCoreInstallNoDependencies() : void {
        $this->assertTrue($this->container
            ->get('module_installer')
            ->install([
            'system_incompatible_core_version_dependencies_test',
        ], FALSE));
    }
    
    /**
     * Tests trying to install an obsolete module.
     *
     * @covers ::install
     */
    public function testObsoleteInstall() : void {
        $this->expectException(ObsoleteExtensionException::class);
        $this->expectExceptionMessage("Unable to install modules: module 'system_status_obsolete_test' is obsolete.");
        $this->container
            ->get('module_installer')
            ->install([
            'system_status_obsolete_test',
        ]);
    }
    
    /**
     * Tests trying to install a deprecated module.
     *
     * @covers ::install
     *
     * @group legacy
     */
    public function testDeprecatedInstall() : void {
        $this->expectDeprecation("The module 'deprecated_module' is deprecated. See http://example.com/deprecated");
        \Drupal::service('module_installer')->install([
            'deprecated_module',
        ]);
        $this->assertTrue(\Drupal::service('module_handler')->moduleExists('deprecated_module'));
    }

}