File download verification in Cypress - Test Execution Trace

Test Overview

This test checks if a file download starts correctly when the user clicks the download button. It verifies the file exists in the download folder after the click.

Test Code - Cypress

Cypress

describe('File Download Verification', () => {
  it('should download the file when clicking the download button', () => {
    cy.visit('https://example.com/download-page');
    const downloadsFolder = Cypress.config('downloadsFolder');

    cy.get('#download-btn').click();

    const downloadedFileName = 'sample.pdf';
    const downloadedFilePath = `${downloadsFolder}/${downloadedFileName}`;

    cy.readFile(downloadedFilePath, { timeout: 15000 }).should('exist');
  });
});

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Test runner initialized, no browser opened yet	-	PASS
2	Browser opens and navigates to 'https://example.com/download-page'	Browser shows the download page with a download button having id 'download-btn'	-	PASS
3	Finds the download button using selector '#download-btn'	Download button is visible and enabled	Check that element '#download-btn' exists	PASS
4	Clicks the download button	Browser initiates file download of 'sample.pdf'	-	PASS
5	Reads the downloaded file 'sample.pdf' from the downloads folder	File 'sample.pdf' is expected to be present in the downloads folder	Verify file exists at path `${downloadsFolder}/sample.pdf`	PASS

Failure Scenario

Failing Condition: The file 'sample.pdf' does not appear in the downloads folder within the timeout period

Execution Trace Quiz - 3 Questions

What does the test verify after clicking the download button?

A The page URL changes

B The button changes color

C The file exists in the downloads folder

D An alert pops up

Key Result

Always verify file downloads by checking the actual file presence in the downloads folder with a timeout to handle download delays.