/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { contextTest as test, expect } from '../config/browserTest';
import { server as coreServer } from '../../packages/playwright-core/lib/coreBundle';
import { queryObjectCount } from '../config/queryObjects';
test.describe.configure({ mode: 'serial' });
test.skip(({ browserName }) => browserName !== 'chromium');
const clientClass = {
    Page: null,
    BrowserContext: null,
    Browser: null,
    Request: null,
    Response: null,
};
test.beforeAll(async ({ browser, server }) => {
    const context = await browser.newContext();
    const page = await context.newPage();
    clientClass.Page = page.constructor;
    clientClass.BrowserContext = context.constructor;
    clientClass.Browser = browser.constructor;
    const [request, response] = await Promise.all([
        page.waitForRequest(() => true),
        page.waitForResponse(() => true),
        page.goto(server.EMPTY_PAGE),
    ]);
    clientClass.Request = request.constructor;
    clientClass.Response = response.constructor;
    await context.close();
});
for (let i = 0; i < 3; ++i) {
    test(`test #${i} to request page and context`, async ({ page, context }) => {
        // This test is here to create page instance
    });
}
test('test to request page and context', async ({ page, context }) => {
    // This test is here to create page instance
});
test('should not leak fixtures w/ page', async ({ page }) => {
    expect(await queryObjectCount(clientClass.Page)).toBe(1);
    expect(await queryObjectCount(clientClass.BrowserContext)).toBe(1);
    expect(await queryObjectCount(clientClass.Browser)).toBe(1);
});
test('should not leak fixtures w/o page', async ({}) => {
    expect(await queryObjectCount(clientClass.Page)).toBe(0);
    expect(await queryObjectCount(clientClass.BrowserContext)).toBe(0);
    expect(await queryObjectCount(clientClass.Browser)).toBe(1);
});
test('should not leak server-side objects', async ({ page }) => {
    expect(await queryObjectCount(coreServer.Page)).toBe(1);
    // 4 is because v8 heap creates objects for descendant classes, so WKContext, CRContext, FFContext, BidiBrowserContext and our context instance.
    expect(await queryObjectCount(coreServer.BrowserContext)).toBe(5);
    expect(await queryObjectCount(coreServer.Browser)).toBe(5);
});
test('should not leak dispatchers after closing page', async ({ context, server }) => {
    const pages = [];
    const COUNT = 5;
    for (let i = 0; i < COUNT; ++i) {
        const page = await context.newPage();
        // ensure listeners are registered
        page.on('console', () => { });
        await page.goto(server.PREFIX + '/title.html');
        await page.evaluate(async (i) => {
            console.log('message', i);
        }, i);
        pages.push(page);
    }
    expect(await queryObjectCount(coreServer.Page)).toBe(COUNT);
    expect(await queryObjectCount(coreServer.RequestDispatcher)).toBe(COUNT);
    expect(await queryObjectCount(coreServer.ResponseDispatcher)).toBe(COUNT);
    for (const page of pages)
        await page.close();
    pages.length = 0;
    expect(await queryObjectCount(coreServer.Page)).toBe(0);
    expect(await queryObjectCount(coreServer.RequestDispatcher)).toBe(0);
    expect(await queryObjectCount(coreServer.ResponseDispatcher)).toBe(0);
    expect(await queryObjectCount(clientClass.Page)).toBeLessThan(COUNT);
    expect(await queryObjectCount(coreServer.Page)).toBe(0);
    expect(await queryObjectCount(clientClass.Request)).toBe(0);
    expect(await queryObjectCount(clientClass.Response)).toBe(0);
});
test.describe(() => {
    test.beforeEach(() => {
        coreServer.setMaxDispatchersForTest(100);
    });
    test('should collect stale handles', async ({ page, server }) => {
        page.on('request', () => { });
        const response = await page.goto(server.PREFIX + '/title.html');
        for (let i = 0; i < 200; ++i) {
            await page.evaluate(async () => {
                const response = await fetch('/');
                await response.text();
            });
        }
        const e = await response.allHeaders().catch(e => e);
        expect(e.message).toContain('The object has been collected to prevent unbounded heap growth.');
        const counts = [
            { count: await queryObjectCount(clientClass.Request), message: 'client.Request' },
            { count: await queryObjectCount(clientClass.Response), message: 'client.Response' },
            { count: await queryObjectCount(coreServer.Request), message: 'server.Request' },
            { count: await queryObjectCount(coreServer.Response), message: 'server.Response' },
            { count: await queryObjectCount(coreServer.RequestDispatcher), message: 'dispatchers.RequestDispatcher' },
            { count: await queryObjectCount(coreServer.ResponseDispatcher), message: 'dispatchers.ResponseDispatcher' },
        ];
        for (const { count, message } of counts) {
            expect(count, { message }).toBeGreaterThan(50);
            expect(count, { message }).toBeLessThan(150);
        }
    });
    test.afterEach(() => {
        coreServer.setMaxDispatchersForTest(null);
    });
});
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