Chaining selectors in Cypress - Build an Automation Script

Verify user can select a nested element using chained selectors

Preconditions (3)

Step 1: Open the sample page URL

Step 2: Find the <div> element with class 'container'

Step 3: Within that container, find the <ul> element

Step 4: Within the <ul>, find the first <li> element with class 'item'

Step 5: Click on that <li> element

Step 6: Verify that the clicked <li> element has the class 'selected'

✅ Expected Result: The first <li> item inside the container's <ul> is clicked and has the class 'selected' applied

Automation Requirements - Cypress

Assertions Needed:

Verify the <li> element has class 'selected' after click

Best Practices:

Use chaining of selectors with cy.get().find()

Use .first() to select the first matching element

Use assertions with .should()

Avoid using brittle selectors like absolute XPaths

Use descriptive class selectors

Automated Solution

Cypress

describe('Chaining selectors test', () => {
  it('should click the first list item inside container and verify selection', () => {
    cy.visit('https://example.com/sample-page')
    cy.get('div.container')
      .find('ul')
      .find('li.item')
      .first()
      .click()
      .should('have.class', 'selected')
  })
})

This test opens the sample page URL first using cy.visit(). Then it uses cy.get('div.container') to find the container div. Next, it chains .find('ul') to locate the unordered list inside that container. Then it chains .find('li.item') to get all list items with class 'item' inside the

. Using .first() selects the first such
• . The test clicks that
• and asserts it has the class 'selected' using .should('have.class', 'selected'). This chaining ensures we only look inside the container and list, making the selector precise and maintainable.

Common Mistakes - 4 Pitfalls

Using multiple separate cy.get() calls without chaining

Using absolute XPath selectors

Not using .first() when multiple elements match

Not asserting the expected class after click

Bonus Challenge

Now add data-driven testing to click the first <li> item inside containers with different classes: 'container', 'container-alt', and 'container-special'. Verify each clicked item has class 'selected'.

Show Hint

Practice

1. What does chaining selectors in Cypress help you do?
cy.get() followed by .find() means:

easy

A. Run tests faster by skipping elements

B. Find all elements on the page at once

C. Find a parent element first, then search inside it

D. Select elements randomly without order

Solution

1. Step 1: Understand cy.get() usage

   cy.get() selects a parent or root element on the page.

2. Step 2: Understand .find() usage

   .find() searches inside the previously selected element for child elements.

3. Final Answer:

   Find a parent element first, then search inside it -> Option C

4. Quick Check:

   Chaining selectors = parent then child [OK]

Hint: Remember: get parent first, then find child inside [OK]

Common Mistakes:

• Thinking .find() selects elements globally
• Confusing .find() with .get()
• Assuming chaining skips elements
• Believing chaining selects randomly

2. Which of the following is the correct syntax to chain selectors in Cypress to find a button inside a form with id 'login'?

easy

A. cy.get('#login').find('button')

B. cy.find('#login').get('button')

C. cy.get('button').find('#login')

D. cy.find('button').get('#login')

Solution

1. Step 1: Identify correct order of chaining

   First select the parent with cy.get('#login').

2. Step 2: Use .find() to locate child button

   Then use .find('button') to get the button inside the form.

3. Final Answer:

   cy.get('#login').find('button') -> Option A

4. Quick Check:

   Parent get, then child find = A [OK]

Hint: Use get() first for parent, then find() for child [OK]

Common Mistakes:

• Swapping get() and find() order
• Using find() as first method
• Selecting child before parent
• Incorrect selector syntax

3. What will the following Cypress code select?

cy.get('.menu').find('li.active')

medium

A. All li elements with class 'active' anywhere on the page

B. All elements with class 'menu' and class 'active'

C. Only the first li element with class 'active' on the page

D. All li elements with class 'active' inside elements with class 'menu'

Solution

1. Step 1: Understand cy.get('.menu')

   This selects all elements with class 'menu'.

2. Step 2: Understand .find('li.active')

   This finds all li elements with class 'active' inside those 'menu' elements.

3. Final Answer:

   All li elements with class 'active' inside elements with class 'menu' -> Option D

4. Quick Check:

   get('.menu') then find('li.active') = C [OK]

Hint: get() selects parent, find() filters children inside [OK]

Common Mistakes:

• Thinking find() searches globally
• Confusing combined classes with nested elements
• Assuming only first element is selected
• Ignoring the chaining order

4. Identify the error in this Cypress code snippet:

cy.find('.container').get('button.submit')

medium

A. Using find before get is incorrect

B. Selector '.container' is invalid

C. Missing parentheses after get

D. No error, code is correct

Solution

1. Step 1: Check method order

   cy.find() is not a valid Cypress command; cy.get() should be used first to select elements.

2. Step 2: Confirm correct chaining

   The correct order is cy.get('.container').find('button.submit').

3. Final Answer:

   Using find before get is incorrect -> Option A

4. Quick Check:

   get() first, then find() [OK]

Hint: Always start with cy.get(), then chain .find() [OK]

Common Mistakes:

• Using cy.find() instead of cy.get()
• Swapping get() and find() order
• Assuming find() works as a root selector
• Ignoring Cypress command syntax

5. You want to test a list where each li has a button inside. Which Cypress code correctly clicks the button inside the third li element within a ul with class 'items'?

hard

A. cy.get('ul.items').eq(2).find('li button').click()

B. cy.get('ul.items').find('li').eq(2).find('button').click()

C. cy.get('ul.items li button').eq(3).click()

D. cy.get('ul.items').find('button').eq(2).click()

Solution

1. Step 1: Select the parent list

   cy.get('ul.items') selects the ul with class 'items'.

2. Step 2: Find all li children and pick the third

   .find('li').eq(2) selects the third li (index starts at 0).

3. Step 3: Find the button inside that li and click

   .find('button').click() clicks the button inside the selected li.

4. Final Answer:

   cy.get('ul.items').find('li').eq(2).find('button').click() -> Option B

5. Quick Check:

   Parent get, child find, eq(2), then find button [OK]

Hint: Use eq(2) after finding li, then find button inside [OK]

Common Mistakes:

• Using eq(3) instead of eq(2) (index off by one)
• Selecting button before li
• Using eq on wrong element
• Not chaining find() properly