function StandardPerformanceTest::testAnonymous

Tests performance for anonymous users.

File

core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php, line 65

Class

StandardPerformanceTest

Tests the performance of basic functionality in the standard profile.

Namespace

Code

protected function testAnonymous() : void {
    // Request the front page, then immediately clear all object caches, so that
    // aggregates and image styles are created on disk but otherwise caches are
    // empty.
    $this->drupalGet('');
    // Give time for big pipe placeholders, asset aggregate requests, and post
    // response tasks to finish processing and write to any caches before
    // clearing caches again.
    sleep(2);
    foreach (Cache::getBins() as $bin) {
        $bin->deleteAll();
    }
    // Now visit a different page to warm some caches.
    $this->drupalGet('user/login');
    // Ensure everything finishes before we collect performance data.
    sleep(2);
    // Test frontpage.
    $performance_data = $this->collectPerformanceData(function () {
        $this->drupalGet('');
    }, 'standardFrontPage');
    $this->assertNoJavaScript($performance_data);
    $expected_queries = [
        'SELECT "base_table"."id" AS "id", "base_table"."path" AS "path", "base_table"."alias" AS "alias", "base_table"."langcode" AS "langcode" FROM "path_alias" "base_table" WHERE ("base_table"."status" = 1) AND ("base_table"."alias" LIKE "/node" ESCAPE ' . "'\\\\'" . ') AND ("base_table"."langcode" IN ("en", "und")) ORDER BY "base_table"."langcode" ASC, "base_table"."id" DESC',
        'SELECT "name", "route", "fit" FROM "router" WHERE "pattern_outline" IN ( "/node" ) AND "number_parts" >= 1',
        'SELECT COUNT(*) AS "expression" FROM (SELECT 1 AS "expression" FROM "node_field_data" "node_field_data" WHERE ("node_field_data"."promote" = 1) AND ("node_field_data"."status" = 1)) "subquery"',
        'SELECT "node_field_data"."sticky" AS "node_field_data_sticky", "node_field_data"."created" AS "node_field_data_created", "node_field_data"."nid" AS "nid" FROM "node_field_data" "node_field_data" WHERE ("node_field_data"."promote" = 1) AND ("node_field_data"."status" = 1) ORDER BY "node_field_data_sticky" DESC, "node_field_data_created" DESC LIMIT 10 OFFSET 0',
        'SELECT "revision"."vid" AS "vid", "revision"."langcode" AS "langcode", "revision"."revision_uid" AS "revision_uid", "revision"."revision_timestamp" AS "revision_timestamp", "revision"."revision_log" AS "revision_log", "revision"."revision_default" AS "revision_default", "base"."nid" AS "nid", "base"."type" AS "type", "base"."uuid" AS "uuid", CASE "base"."vid" WHEN "revision"."vid" THEN 1 ELSE 0 END AS "isDefaultRevision" FROM "node" "base" INNER JOIN "node_revision" "revision" ON "revision"."vid" = "base"."vid" WHERE "base"."nid" IN (1)',
        'SELECT "revision".* FROM "node_field_revision" "revision" WHERE ("revision"."nid" IN (1)) AND ("revision"."vid" IN ("1")) ORDER BY "revision"."nid" ASC',
        'SELECT "t".* FROM "node__body" "t" WHERE ("entity_id" IN (1)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "t".* FROM "node__comment" "t" WHERE ("entity_id" IN (1)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "t".* FROM "node__field_image" "t" WHERE ("entity_id" IN (1)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "t".* FROM "node__field_tags" "t" WHERE ("entity_id" IN (1)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "ces".* FROM "comment_entity_statistics" "ces" WHERE ("ces"."entity_id" IN (1)) AND ("ces"."entity_type" = "node")',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.entity_view_display.node.article.teaser", "core.entity_view_display.node.article.default" )',
        'SELECT "config"."name" AS "name" FROM "config" "config" WHERE ("collection" = "") AND ("name" LIKE "comment.type.%" ESCAPE ' . "'\\\\'" . ') ORDER BY "collection" ASC, "name" ASC',
        'SELECT "config"."name" AS "name" FROM "config" "config" WHERE ("collection" = "") AND ("name" LIKE "node.type.%" ESCAPE ' . "'\\\\'" . ') ORDER BY "collection" ASC, "name" ASC',
        'SELECT "base"."uid" AS "uid", "base"."uuid" AS "uuid", "base"."langcode" AS "langcode" FROM "users" "base" WHERE "base"."uid" IN (0)',
        'SELECT "data".* FROM "users_field_data" "data" WHERE "data"."uid" IN (0) ORDER BY "data"."uid" ASC',
        'SELECT "t".* FROM "user__roles" "t" WHERE ("entity_id" IN (0)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "t".* FROM "user__user_picture" "t" WHERE ("entity_id" IN (0)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.date_format.medium" )',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.date_format.long" )',
        'SELECT 1 AS "expression" FROM "path_alias" "base_table" WHERE ("base_table"."status" = 1) AND ("base_table"."path" LIKE "/node%" ESCAPE ' . "'\\\\'" . ') LIMIT 1 OFFSET 0',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.entity_view_display.user.user.compact", "core.entity_view_display.user.user.default" )',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "filter.format.restricted_html" )',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "system.image" )',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "user.role.authenticated" )',
        'SELECT "name", "value" FROM "key_value" WHERE "name" IN ( "theme:stark" ) AND "collection" = "config.entity.key_store.block"',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "view.frontpage.page_1") AND ("route_param_key" = "view_id=frontpage&display_id=page_1") AND ("menu_name" = "main") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "view.frontpage.page_1") AND ("route_param_key" = "view_id=frontpage&display_id=page_1") AND ("menu_name" = "account") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("theme_registry:runtime:stark:Drupal\\Core\\Utility\\ThemeRegistry", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "theme_registry:runtime:stark:Drupal\\Core\\Utility\\ThemeRegistry") AND ("value" = "LOCK_ID")',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("library_info:stark:Drupal\\Core\\Cache\\CacheCollector", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "library_info:stark:Drupal\\Core\\Cache\\CacheCollector") AND ("value" = "LOCK_ID")',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("path_alias_prefix_list:Drupal\\Core\\Cache\\CacheCollector", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "path_alias_prefix_list:Drupal\\Core\\Cache\\CacheCollector") AND ("value" = "LOCK_ID")',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("active-trail:route:view.frontpage.page_1:route_parameters:a:2:{s:10:"display_id";s:6:"page_1";s:7:"view_id";s:9:"frontpage";}:Drupal\\Core\\Cache\\CacheCollector", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "active-trail:route:view.frontpage.page_1:route_parameters:a:2:{s:10:"display_id";s:6:"page_1";s:7:"view_id";s:9:"frontpage";}:Drupal\\Core\\Cache\\CacheCollector") AND ("value" = "LOCK_ID")',
    ];
    $recorded_queries = $performance_data->getQueries();
    $this->assertSame($expected_queries, $recorded_queries);
    $expected = [
        'QueryCount' => 36,
        'CacheGetCount' => 122,
        'CacheGetCountByBin' => [
            'page' => 1,
            'config' => 21,
            'data' => 8,
            'discovery' => 38,
            'bootstrap' => 8,
            'dynamic_page_cache' => 2,
            'render' => 35,
            'default' => 5,
            'entity' => 2,
            'menu' => 2,
        ],
        'CacheSetCount' => 45,
        'CacheDeleteCount' => 0,
        'CacheTagChecksumCount' => 37,
        'CacheTagIsValidCount' => 42,
        'CacheTagInvalidationCount' => 0,
        'CacheTagLookupQueryCount' => 21,
        'CacheTagGroupedLookups' => [
            [
                'route_match',
                'access_policies',
                'routes',
                'router',
                'entity_types',
                'entity_field_info',
                'entity_bundles',
                'local_task',
                'library_info',
            ],
            [
                'config:views.view.frontpage',
            ],
            [
                'config:core.extension',
                'views_data',
            ],
            [
                'node:1',
                'node_list',
            ],
            [
                'rendered',
                'user:0',
                'user_view',
            ],
            [
                'config:filter.format.restricted_html',
                'node_view',
            ],
            [
                'block_view',
                'config:block.block.stark_site_branding',
                'config:system.site',
            ],
            [
                'CACHE_MISS_IF_UNCACHEABLE_HTTP_METHOD:form',
                'config:block.block.stark_search_form_narrow',
                'config:search.settings',
            ],
            [
                'config:block.block.stark_main_menu',
                'config:system.menu.main',
            ],
            [
                'config:block.block.stark_search_form_wide',
            ],
            [
                'config:block.block.stark_account_menu',
                'config:system.menu.account',
            ],
            [
                'config:block.block.stark_breadcrumbs',
            ],
            [
                'config:block.block.stark_primary_admin_actions',
            ],
            [
                'config:block.block.stark_messages',
            ],
            [
                'config:block.block.stark_primary_local_tasks',
            ],
            [
                'config:block.block.stark_secondary_local_tasks',
            ],
            [
                'config:block.block.stark_help',
            ],
            [
                'config:block.block.stark_powered',
            ],
            [
                'config:block.block.stark_syndicate',
            ],
            [
                'config:block.block.stark_content',
                'config:block.block.stark_page_title',
                'config:block_list',
                'http_response',
            ],
            [
                'config:user.role.anonymous',
            ],
        ],
        'StylesheetCount' => 1,
        'StylesheetBytes' => 3450,
    ];
    $this->assertMetrics($expected, $performance_data);
    $expected_default_cache_cids = [
        'views_data:node_field_data:en',
        'views_data:en',
        'views_data:views:en',
        'views_data:node:en',
        'theme_registry:stark',
    ];
    $this->assertSame($expected_default_cache_cids, $performance_data->getCacheOperations()['get']['default']);
    // Test node page.
    $performance_data = $this->collectPerformanceData(function () {
        $this->drupalGet('node/1');
    }, 'standardNodePage');
    $this->assertNoJavaScript($performance_data);
    $expected_queries = [
        'SELECT "base_table"."id" AS "id", "base_table"."path" AS "path", "base_table"."alias" AS "alias", "base_table"."langcode" AS "langcode" FROM "path_alias" "base_table" WHERE ("base_table"."status" = 1) AND ("base_table"."alias" LIKE "/node/1" ESCAPE ' . "'\\\\'" . ') AND ("base_table"."langcode" IN ("en", "und")) ORDER BY "base_table"."langcode" ASC, "base_table"."id" DESC',
        'SELECT "name", "route", "fit" FROM "router" WHERE "pattern_outline" IN ( "/node/1", "/node/%", "/node" ) AND "number_parts" >= 2',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.entity_view_display.node.article.full" )',
        'SELECT "name", "value" FROM "key_value" WHERE "name" IN ( "theme:stark" ) AND "collection" = "config.entity.key_store.block"',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "entity.node.canonical") AND ("route_param_key" = "node=1") AND ("menu_name" = "main") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "entity.node.canonical") AND ("route_param_key" = "node=1") AND ("menu_name" = "account") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("theme_registry:runtime:stark:Drupal\\Core\\Utility\\ThemeRegistry", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "theme_registry:runtime:stark:Drupal\\Core\\Utility\\ThemeRegistry") AND ("value" = "LOCK_ID")',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("active-trail:route:entity.node.canonical:route_parameters:a:1:{s:4:"node";s:1:"1";}:Drupal\\Core\\Cache\\CacheCollector", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "active-trail:route:entity.node.canonical:route_parameters:a:1:{s:4:"node";s:1:"1";}:Drupal\\Core\\Cache\\CacheCollector") AND ("value" = "LOCK_ID")',
    ];
    $recorded_queries = $performance_data->getQueries();
    $this->assertSame($expected_queries, $recorded_queries);
    $this->assertCountBetween(24, 25, $performance_data->getCacheTagChecksumCount());
    $this->assertCountBetween(38, 39, $performance_data->getCacheTagIsValidCount());
    $expected = [
        'QueryCount' => 10,
        'CacheGetCount' => 92,
        'CacheSetCount' => 16,
        'CacheDeleteCount' => 0,
        'CacheTagInvalidationCount' => 0,
        'CacheTagLookupQueryCount' => 18,
        'CacheTagGroupedLookups' => [
            [
                'route_match',
                'access_policies',
                'routes',
                'router',
                'entity_types',
                'entity_field_info',
                'entity_bundles',
                'local_task',
                'library_info',
            ],
            [
                'rendered',
                'user:0',
                'user_view',
            ],
            [
                'config:filter.format.restricted_html',
                'node:1',
                'node_view',
            ],
            [
                'block_view',
                'config:block.block.stark_site_branding',
                'config:system.site',
            ],
            [
                'CACHE_MISS_IF_UNCACHEABLE_HTTP_METHOD:form',
                'config:block.block.stark_search_form_narrow',
                'config:search.settings',
            ],
            [
                'config:block.block.stark_main_menu',
                'config:system.menu.main',
            ],
            [
                'config:block.block.stark_search_form_wide',
            ],
            [
                'config:block.block.stark_account_menu',
                'config:system.menu.account',
            ],
            [
                'config:block.block.stark_breadcrumbs',
            ],
            [
                'config:block.block.stark_primary_admin_actions',
            ],
            [
                'config:block.block.stark_messages',
            ],
            [
                'config:block.block.stark_primary_local_tasks',
            ],
            [
                'config:block.block.stark_secondary_local_tasks',
            ],
            [
                'config:block.block.stark_help',
            ],
            [
                'config:block.block.stark_powered',
            ],
            [
                'config:block.block.stark_syndicate',
            ],
            [
                'config:block.block.stark_content',
                'config:block.block.stark_page_title',
                'config:block_list',
                'http_response',
            ],
            [
                'config:user.role.anonymous',
            ],
        ],
        'StylesheetCount' => 1,
        'StylesheetBytes' => 3150,
    ];
    $this->assertMetrics($expected, $performance_data);
    // Test user profile page.
    $this->user = $this->drupalCreateUser();
    $performance_data = $this->collectPerformanceData(function () {
        $this->drupalGet('user/' . $this->user
            ->id());
    }, 'standardUserPage');
    $this->assertNoJavaScript($performance_data);
    $expected_queries = [
        'SELECT "base_table"."id" AS "id", "base_table"."path" AS "path", "base_table"."alias" AS "alias", "base_table"."langcode" AS "langcode" FROM "path_alias" "base_table" WHERE ("base_table"."status" = 1) AND ("base_table"."alias" LIKE "/user/2" ESCAPE ' . "'\\\\'" . ') AND ("base_table"."langcode" IN ("en", "und")) ORDER BY "base_table"."langcode" ASC, "base_table"."id" DESC',
        'SELECT "name", "route", "fit" FROM "router" WHERE "pattern_outline" IN ( "/user/2", "/user/%", "/user" ) AND "number_parts" >= 2',
        'SELECT "base"."uid" AS "uid", "base"."uuid" AS "uuid", "base"."langcode" AS "langcode" FROM "users" "base" WHERE "base"."uid" IN (2)',
        'SELECT "data".* FROM "users_field_data" "data" WHERE "data"."uid" IN (2) ORDER BY "data"."uid" ASC',
        'SELECT "t".* FROM "user__roles" "t" WHERE ("entity_id" IN (2)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "t".* FROM "user__user_picture" "t" WHERE ("entity_id" IN (2)) AND ("deleted" = 0) AND ("langcode" IN ("en", "und", "zxx")) ORDER BY "delta" ASC',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "core.entity_view_display.user.user.full" )',
        'SELECT "name", "value" FROM "key_value" WHERE "name" IN ( "theme:stark" ) AND "collection" = "config.entity.key_store.block"',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "entity.user.canonical") AND ("route_param_key" = "user=2") AND ("menu_name" = "main") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'SELECT "menu_tree"."menu_name" AS "menu_name", "menu_tree"."route_name" AS "route_name", "menu_tree"."route_parameters" AS "route_parameters", "menu_tree"."url" AS "url", "menu_tree"."title" AS "title", "menu_tree"."description" AS "description", "menu_tree"."parent" AS "parent", "menu_tree"."weight" AS "weight", "menu_tree"."options" AS "options", "menu_tree"."expanded" AS "expanded", "menu_tree"."enabled" AS "enabled", "menu_tree"."provider" AS "provider", "menu_tree"."metadata" AS "metadata", "menu_tree"."class" AS "class", "menu_tree"."form_class" AS "form_class", "menu_tree"."id" AS "id" FROM "menu_tree" "menu_tree" WHERE ("route_name" = "entity.user.canonical") AND ("route_param_key" = "user=2") AND ("menu_name" = "account") ORDER BY "depth" ASC, "weight" ASC, "id" ASC',
        'SELECT "ud".* FROM "users_data" "ud" WHERE ("module" = "contact") AND ("uid" = "2") AND ("name" = "enabled")',
        'SELECT "name", "data" FROM "config" WHERE "collection" = "" AND "name" IN ( "contact.settings" )',
        'INSERT INTO "semaphore" ("name", "value", "expire") VALUES ("active-trail:route:entity.user.canonical:route_parameters:a:1:{s:4:"user";s:1:"2";}:Drupal\\Core\\Cache\\CacheCollector", "LOCK_ID", "EXPIRE")',
        'DELETE FROM "semaphore"  WHERE ("name" = "active-trail:route:entity.user.canonical:route_parameters:a:1:{s:4:"user";s:1:"2";}:Drupal\\Core\\Cache\\CacheCollector") AND ("value" = "LOCK_ID")',
    ];
    $recorded_queries = $performance_data->getQueries();
    $this->assertSame($expected_queries, $recorded_queries);
    $expected = [
        'QueryCount' => 14,
        'CacheGetCount' => 80,
        'CacheSetCount' => 17,
        'CacheDeleteCount' => 0,
        'CacheTagChecksumCount' => 23,
        'CacheTagIsValidCount' => 33,
        'CacheTagInvalidationCount' => 0,
        'CacheTagLookupQueryCount' => 16,
        'StylesheetCount' => 1,
        'StylesheetBytes' => 3150,
    ];
    $this->assertMetrics($expected, $performance_data);
}