Reading file contents in Cypress - Test Execution Trace

Test Overview

This test reads the contents of a file named example.txt and verifies that it contains the expected text.

Test Code - Cypress

Cypress

describe('Reading file contents', () => {
  it('should read the file and verify its content', () => {
    cy.readFile('cypress/fixtures/example.txt').then((content) => {
      expect(content).to.contain('Hello, Cypress!');
    });
  });
});

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Cypress test runner is initialized	-	PASS
2	Cypress reads the file 'cypress/fixtures/example.txt' using cy.readFile	File system accessed, file content loaded into memory	-	PASS
3	Test code executes the callback with file content	File content is available as a string	Check if file content contains 'Hello, Cypress!'	PASS
4	Assertion passes confirming file content is as expected	Test runner shows test passed	expect(content).to.contain('Hello, Cypress!')	PASS

Failure Scenario

Failing Condition: File 'cypress/fixtures/example.txt' does not exist or content does not contain expected text

Execution Trace Quiz - 3 Questions

What command does Cypress use to read the file?

A cy.getFile

B cy.readFile

C cy.loadFile

D cy.openFile

Key Result

Always verify the file path and expected content when reading files in tests to avoid false failures.