Assertions

Here's a sample TestCafe test script that demonstrates performing various assertions:

import { Selector } from 'testcafe';

fixture('Assertions Test')
    .page('https://www.example.com');

test('Perform Various Assertions', async t => {
    // Selector for elements on the page
    const title = Selector('title');
    const header = Selector('h1');
    const paragraph = Selector('p');
    const link = Selector('a');

    // Perform assertions
    await t
        // Assert that the title of the page is as expected
        .expect(title.innerText).eql('Example Domain')

        // Assert that the header text contains specific text
        .expect(header.innerText).contains('Welcome')

        // Assert that the paragraph text matches a regular expression
        .expect(paragraph.innerText).match(/lorem ipsum/)

        // Assert that the link exists and has a specific attribute value
        .expect(link.exists).ok()
        .expect(link.getAttribute('href')).eql('https://www.example.com/link');

    // Perform custom assertions
    const elementCount = await Selector('div').count;
    await t.expect(elementCount).gte(5);
});

In this test:

• We import the Selector function from TestCafe to select elements on the web page.
• We define a fixture named 'Assertions Test' and set the page to 'https://www.example.com'.
• Inside the test function:
  • We define selectors for various elements on the page (title, header, paragraph, link).
  • We perform several assertions using TestCafe's expect function:
    • Assert that the title of the page is as expected.
    • Assert that the header text contains specific text.
    • Assert that the paragraph text matches a regular expression.
    • Assert that a link exists and has a specific attribute value.
  • We also perform a custom assertion to check the count of <div> elements on the page.
    • We use Selector('div').count to get the count of <div> elements.
    • We use TestCafe's expect function to assert that the count is greater than or equal to 5.

You can adjust the selectors and assertions according to the structure and content of the web page you are testing.