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playwright/docs/src/api/class-pageassertions.md

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class: PageAssertions

  • since: v1.17

The [PageAssertions] class provides assertion methods that can be used to make assertions about the [Page] state in the tests.

import { test, expect } from '@playwright/test';

test('navigates to login', async ({ page }) => {
  // ...
  await page.getByText('Sign in').click();
  await expect(page).toHaveURL(/.*\/login/);
});

// ...
import static com.microsoft.playwright.assertions.PlaywrightAssertions.assertThat;

public class TestPage {
  // ...
  @Test
  void navigatesToLoginPage() {
    // ...
    page.getByText("Sign in").click();
    assertThat(page).hasURL(Pattern.compile(".*/login"));
  }
}

import re
from playwright.async_api import Page, expect

async def test_navigates_to_login_page(page: Page) -> None:
    # ..
    await page.get_by_text("Sign in").click()
    await expect(page).to_have_url(re.compile(r".*/login"))

import re
from playwright.sync_api import Page, expect

def test_navigates_to_login_page(page: Page) -> None:
    # ..
    page.get_by_text("Sign in").click()
    expect(page).to_have_url(re.compile(r".*/login"))

using System.Text.RegularExpressions;
using Microsoft.Playwright;
using Microsoft.Playwright.MSTest;

namespace PlaywrightTests;

[TestClass]
public class ExampleTests : PageTest
{
    [TestMethod]
    public async Task NavigateToLoginPage()
    {
        await Page.GetByRole(AriaRole.Button, new() { Name = "Sign In" }).ClickAsync();
        await Expect(Page).ToHaveURLAsync(new Regex(".*/login"));
    }
}

property: PageAssertions.not

  • since: v1.20
  • langs: java, js, csharp
  • returns: <[PageAssertions]>

Makes the assertion check for the opposite condition. For example, this code tests that the page URL doesn't contain "error":

await expect(page).not.toHaveURL('error');

assertThat(page).not().hasURL("error");

await Expect(Page).Not.ToHaveURLAsync("error");

async method: PageAssertions.NotToHaveTitle

  • since: v1.20
  • langs: python

The opposite of [method: PageAssertions.toHaveTitle].

param: PageAssertions.NotToHaveTitle.titleOrRegExp

  • since: v1.18
  • titleOrRegExp <[string]|[RegExp]>

Expected title or RegExp.

option: PageAssertions.NotToHaveTitle.timeout = %%-csharp-java-python-assertions-timeout-%%

  • since: v1.18

async method: PageAssertions.NotToHaveURL

  • since: v1.20
  • langs: python
    • alias-java: hasURL

The opposite of [method: PageAssertions.toHaveURL].

param: PageAssertions.NotToHaveURL.urlOrRegExp

  • since: v1.18
  • urlOrRegExp <[string]|[RegExp]>

Expected URL string or RegExp.

option: PageAssertions.NotToHaveURL.ignoreCase

  • since: v1.44
  • ignoreCase <[boolean]>

Whether to perform case-insensitive match. [option: ignoreCase] option takes precedence over the corresponding regular expression flag if specified.

option: PageAssertions.NotToHaveURL.timeout = %%-csharp-java-python-assertions-timeout-%%

  • since: v1.18

async method: PageAssertions.toHaveScreenshot#1

  • since: v1.23
  • langs: js

This function will wait until two consecutive page screenshots yield the same result, and then compare the last screenshot with the expectation.

Usage

await expect(page).toHaveScreenshot('image.png');

Note that screenshot assertions only work with Playwright test runner.

param: PageAssertions.toHaveScreenshot#1.name

  • since: v1.23
  • name <[string]|[Array]<[string]>>

Snapshot name.

option: PageAssertions.toHaveScreenshot#1.timeout = %%-js-assertions-timeout-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.animations = %%-screenshot-option-animations-default-disabled-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.caret = %%-screenshot-option-caret-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.clip = %%-screenshot-option-clip-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.fullPage = %%-screenshot-option-full-page-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.mask = %%-screenshot-option-mask-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.maskColor = %%-screenshot-option-mask-color-%%

  • since: v1.35

option: PageAssertions.toHaveScreenshot#1.stylePath = %%-screenshot-option-style-path-%%

  • since: v1.41

option: PageAssertions.toHaveScreenshot#1.omitBackground = %%-screenshot-option-omit-background-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.scale = %%-screenshot-option-scale-default-css-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.maxDiffPixels = %%-assertions-max-diff-pixels-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.maxDiffPixelRatio = %%-assertions-max-diff-pixel-ratio-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#1.threshold = %%-assertions-threshold-%%

  • since: v1.23

async method: PageAssertions.toHaveScreenshot#2

  • since: v1.23
  • langs: js

This function will wait until two consecutive page screenshots yield the same result, and then compare the last screenshot with the expectation.

Usage

await expect(page).toHaveScreenshot();

Note that screenshot assertions only work with Playwright test runner.

option: PageAssertions.toHaveScreenshot#2.timeout = %%-js-assertions-timeout-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.animations = %%-screenshot-option-animations-default-disabled-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.caret = %%-screenshot-option-caret-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.clip = %%-screenshot-option-clip-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.fullPage = %%-screenshot-option-full-page-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.mask = %%-screenshot-option-mask-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.maskColor = %%-screenshot-option-mask-color-%%

  • since: v1.35

option: PageAssertions.toHaveScreenshot#2.stylePath = %%-screenshot-option-style-path-%%

  • since: v1.41

option: PageAssertions.toHaveScreenshot#2.omitBackground = %%-screenshot-option-omit-background-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.scale = %%-screenshot-option-scale-default-css-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.maxDiffPixels = %%-assertions-max-diff-pixels-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.maxDiffPixelRatio = %%-assertions-max-diff-pixel-ratio-%%

  • since: v1.23

option: PageAssertions.toHaveScreenshot#2.threshold = %%-assertions-threshold-%%

  • since: v1.23

async method: PageAssertions.toHaveTitle

  • since: v1.20
  • langs:
    • alias-java: hasTitle

Ensures the page has the given title.

Usage

await expect(page).toHaveTitle(/.*checkout/);

assertThat(page).hasTitle("Playwright");

import re
from playwright.async_api import expect

# ...
await expect(page).to_have_title(re.compile(r".*checkout"))

import re
from playwright.sync_api import expect

# ...
expect(page).to_have_title(re.compile(r".*checkout"))

await Expect(Page).ToHaveTitleAsync("Playwright");

param: PageAssertions.toHaveTitle.titleOrRegExp

  • since: v1.18
  • titleOrRegExp <[string]|[RegExp]>

Expected title or RegExp.

option: PageAssertions.toHaveTitle.timeout = %%-js-assertions-timeout-%%

  • since: v1.18

option: PageAssertions.toHaveTitle.timeout = %%-csharp-java-python-assertions-timeout-%%

  • since: v1.18

async method: PageAssertions.toHaveURL

  • since: v1.20
  • langs:
    • alias-java: hasURL

Ensures the page is navigated to the given URL.

Usage

// Check for the page URL to be 'https://playwright.dev/docs/intro' (including query string)
await expect(page).toHaveURL('https://playwright.dev/docs/intro');

// Check for the page URL to contain 'doc', followed by an optional 's', followed by '/'
await expect(page).toHaveURL(/docs?\//);

// Check for the predicate to be satisfied
// For example: verify query strings
await expect(page).toHaveURL(url => {
  const params = url.searchParams;
  return params.has('search') && params.has('options') && params.get('id') === '5';
});

assertThat(page).hasURL(".com");

import re
from playwright.async_api import expect

# ...
await expect(page).to_have_url(re.compile(".*checkout"))

import re
from playwright.sync_api import expect

# ...
expect(page).to_have_url(re.compile(".*checkout"))

await Expect(Page).ToHaveURLAsync(new Regex(".*checkout"));

param: PageAssertions.toHaveURL.url

  • since: v1.18
  • langs: js
  • url <[string]|[RegExp]|[function][URL]:[boolean]>

Expected URL string, RegExp, or predicate receiving [URL] to match. When [option: Browser.newContext.baseURL] is provided via the context options and the url argument is a string, the two values are merged via the new URL() constructor and used for the comparison against the current browser URL.

param: PageAssertions.toHaveURL.urlOrRegExp

  • since: v1.18
  • langs: csharp, python, java
  • urlOrRegExp <[string]|[RegExp]>

Expected URL string or RegExp.

option: PageAssertions.toHaveURL.ignoreCase

  • since: v1.44
  • ignoreCase <[boolean]>

Whether to perform case-insensitive match. [option: ignoreCase] option takes precedence over the corresponding regular expression parameter if specified. A provided predicate ignores this flag.

option: PageAssertions.toHaveURL.timeout = %%-js-assertions-timeout-%%

  • since: v1.18

option: PageAssertions.toHaveURL.timeout = %%-csharp-java-python-assertions-timeout-%%

  • since: v1.18