Cypress- Common Regular Expression Examples

cypress-RegularExpression-Examples.js

// test.spec.js

describe('Regular Expressions in Cypress', () => {
  it('should demonstrate the usage of regular expressions', () => {
    // Example 1: Validating an email address using regex
    cy.get('#email-input').type('example@test.com');
    cy.get('#email-input').should('match', /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/);

    // Example 2: Verifying the presence of a phone number using regex for format "Phone: +XXX-XXX-XXX-XXXX", where X represents a digit
    cy.contains(/^Phone:\s+\+\d{1,3}-\d{3}-\d{3}-\d{4}$/);

    /*
    Example 3: Verifying following date formats:
    Date Format YYYY-MM-dd using separator '-'
    Date Format dd-MM-YYYY using separators - or . or /
    Date Format dd-mmm-YYYY using separators - or . or /
    */
    //Date Format YYYY-MM-dd using separator '-'
    const dateRegex1 = /^\d{4}-\d{2}-\d{2}$/;
    cy.get('#date-field').should('match', dateRegex1);
    
    //Date Format dd-MM-YYYY using separators '-' or '.' or '/':
    const dateRegex2 = /^\d{2}[-./]\d{2}[-./]\d{4}$/;
    cy.get('#date-field').should('match', dateRegex2);
    
    //Date Format dd-mmm-YYYY using separators '-' or '.' or '/':
    const dateRegex3 = /^\d{2}[-./](?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[-./]\d{4}$/i;
    cy.get('#date-field').should('match', dateRegex3);
    

    // Example 4: Matching URL pattern
    const urlRegex = /^(https?):\/\/(www\.)?([\w-]+)\.([\w.-]+)\/?([\w-]+)?$/;
    cy.url().should('match', urlRegex);

    /*
    Example 5: Validating a password strength using regex
    The regular expression enforces the following password requirements:
    The password must contain at least one uppercase letter ([A-Z]).
    The password must contain at least one lowercase letter ([a-z]).
    The password must contain at least one digit (\d).
    The password must contain at least one special character from the set [@#$%^&+=].
    The password must be at least 8 characters long.
    */
    cy.get('#password-input').type('Strong@Password123');
    cy.get('#password-input').should('match', /^(?=.*[A-Z])(?=.*[a-z])(?=.*\d)(?=.*[@#$%^&+=]).{8,}$/);
  });
});