cy.parent() and cy.children() in Cypress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does cy.parent() do in Cypress?

cy.parent() selects the immediate parent element of the current element in the DOM tree.

beginner

What is the purpose of cy.children() in Cypress?

cy.children() selects all direct child elements of the current element.

beginner

How would you get the parent of an element with class .item using Cypress?

You can use cy.get('.item').parent() to select the immediate parent of the element with class .item.

beginner

How can you select all children of a <ul> element with id #menu in Cypress?

Use cy.get('#menu').children() to select all direct child elements (usually <li>) of the <ul> with id menu.

intermediate

What is the difference between cy.parent() and cy.parents()?

cy.parent() selects only the immediate parent element, while cy.parents() selects all ancestor elements up the DOM tree.

What does cy.children() select?

A All direct child elements

B Only the immediate parent element

C The first child element only

D All descendant elements at any level

cy.children() selects all direct child elements of the current element, not descendants at any level or parents.

Which command selects the immediate parent of an element in Cypress?

A cy.children()

B cy.parent()

C cy.parents()

D cy.siblings()

cy.parent() selects the immediate parent element of the current element.

If you want to select all ancestor elements of an element, which Cypress command should you use?

A cy.parent()

B cy.children()

C cy.parents()

D cy.next()

cy.parents() selects all ancestor elements up the DOM tree.

What will cy.get('.list').children('.active') do?

A Select all descendants with class <code>active</code>

B Select the parent of elements with class <code>active</code>

C Select siblings of elements with class <code>active</code>

D Select direct children with class <code>active</code> of elements with class <code>list</code>

This selects direct child elements with class active of elements with class list.

Which Cypress command would NOT select any elements if the current element has no children?

A cy.children()

B cy.parent()

C cy.parents()

D cy.siblings()

cy.children() returns no elements if the current element has no direct children.

Explain how cy.parent() and cy.children() help navigate the DOM in Cypress tests.

Think about moving up and down the family tree of elements.

Describe a scenario where using cy.children() is better than cy.find().

Consider the difference between immediate children and all nested elements.

Practice

1. What does the Cypress command cy.parent() do?

easy

A. Finds all child elements of the current element

B. Finds the immediate parent element of the current element

C. Finds all sibling elements of the current element

D. Finds the first child element of the current element

Solution

1. Step 1: Understand the purpose of cy.parent()

   This command is used to get the immediate parent of the currently selected element in the DOM tree.

2. Step 2: Compare with other options

   cy.children() finds children, siblings are not targeted by cy.parent(), and it does not find the first child specifically.

3. Final Answer:

   Finds the immediate parent element of the current element -> Option B

4. Quick Check:

   cy.parent() = immediate parent [OK]

Hint: Parent means one level up in the DOM tree [OK]

Common Mistakes:

• Confusing parent with children
• Thinking it finds all ancestors
• Assuming it finds siblings

2. Which of the following is the correct syntax to get all direct children of an element with class container in Cypress?

easy

A. cy.get('.container').children()

B. cy.get('.container').parent()

C. cy.get('.container').child()

D. cy.get('.container').parents()

Solution

1. Step 1: Identify the correct command for children

   The command to get direct children is children(), so cy.get('.container').children() is correct.

2. Step 2: Check other options for correctness

   parent() gets the parent, child() is not a valid Cypress command, and parents() gets all ancestors, not children.

3. Final Answer:

   cy.get('.container').children() -> Option A

4. Quick Check:

   children() gets direct children [OK]

Hint: Use children() to get direct children elements [OK]

Common Mistakes:

• Using parent() instead of children()
• Using incorrect method child()
• Confusing parents() with children()

3. Consider the following HTML structure:

<div class='grandparent'>
  <div class='parent'>
    <span class='child'>Hello</span>
    <span class='child'>World</span>
  </div>
</div>

What will cy.get('.child').parent().should('have.class', 'parent') assert?

medium

A. That the grandparent has class 'parent'

B. That the children of .parent have class 'child'

C. That the parent of each .child element has class 'parent'

D. That the .child elements have class 'parent'

Solution

1. Step 1: Understand the command chain

   cy.get('.child') selects both span elements. parent() gets their immediate parent, which is the div with class 'parent'.

2. Step 2: Analyze the assertion

   The assertion checks if the parent element has class 'parent', which is true for both .child elements.

3. Final Answer:

   That the parent of each .child element has class 'parent' -> Option C

4. Quick Check:

   parent() gets immediate parent with class 'parent' [OK]

Hint: parent() gets immediate parent element of selected children [OK]

Common Mistakes:

• Thinking parent() gets grandparent
• Confusing children with parent
• Assuming assertion checks children classes

4. You wrote this Cypress test:

cy.get('.list').children('.item').parent('.container')

But it fails with an error. What is the likely cause?

medium

A. The parent() command does not accept a selector argument

B. The children() command cannot filter by class

C. The parent() command returns all ancestors, not immediate parent

D. The children() command returns siblings, not children

Solution

1. Step 1: Check parent() usage

   The parent() command in Cypress does not accept any selector argument; it always returns the immediate parent element.

2. Step 2: Verify other commands

   children() can filter by selector, so that part is valid. parent() does not return all ancestors, only immediate parent. children() returns direct children, not siblings.

3. Final Answer:

   The parent() command does not accept a selector argument -> Option A

4. Quick Check:

   parent() takes no selector argument [OK]

Hint: parent() never takes a selector; children() can filter [OK]

Common Mistakes:

• Passing selector to parent()
• Confusing children() filtering
• Thinking parent() returns all ancestors

5. Given this HTML:

<ul class='menu'>
  <li class='item'>Home</li>
  <li class='item'>About</li>
  <li class='item'>Contact</li>
</ul>
<div class='footer'>Footer content</div>

Which Cypress command chain correctly selects the <ul> element starting from the <li> elements with class item?

hard

A. cy.get('.item').children('ul')

B. cy.get('.item').parent().parent()

C. cy.get('.item').children()

D. cy.get('.item').parent()

Solution

1. Step 1: Identify the parent of .item elements

   Each <li class='item'> is a direct child of the <ul class='menu'> element.

2. Step 2: Use parent() to get immediate parent

   cy.get('.item').parent() correctly gets the immediate parent <ul class='menu'> element.

3. Step 3: Check other options

   children('ul') is wrong because <li> elements do not have <ul> children. parent().parent() goes too far up. children() gets children, not parent.

4. Final Answer:

   cy.get('.item').parent() -> Option D

5. Quick Check:

   parent() gets immediate parent [OK]

Hint: Use parent() to get immediate parent element [OK]

Common Mistakes:

• Using children() to get parent
• Going two levels up unnecessarily
• Assuming children() returns parent