Using fixtures in tests in Cypress - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to load a fixture file named 'user.json' in a Cypress test.

Cypress

cy.fixture('[1]').then((user) => {
  expect(user).to.have.property('name')
})

Drag options to blanks, or click blank then click option'

Adata.json

Buser

Cuser.json

Dconfig

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the file extension in the fixture filename.

Using a variable name instead of the filename.

The cy.fixture() command loads the fixture file by its filename including extension. Here, 'user.json' is the correct file name.

2fill in blank

medium

Complete the code to use the loaded fixture data inside a test.

Cypress

cy.fixture('user.json').then(([1]) => {
  cy.log([1].email)
})

Drag options to blanks, or click blank then click option'

Auser

BuserData

Cinfo

Ddata

Attempts:

3 left

💡 Hint

Common Mistakes

Using the fixture filename as the variable name without quotes.

Using an invalid variable name.

The parameter name in the then callback can be any valid variable name. Here, 'user' is used to represent the loaded fixture data.

3fill in blank

hard

Fix the error in the code to correctly use fixture data in a test.

Cypress

beforeEach(() => {
  cy.fixture('settings.json').[1]((settings) => {
    this.settings = settings
  })
})

Drag options to blanks, or click blank then click option'

Aload

Bthen

Cget

Dread

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent methods like 'load' or 'get' on the fixture command.

Not handling the asynchronous nature of fixture loading.

The cy.fixture() command returns a chainable. To access the loaded data, use then to handle the promise.

4fill in blank

hard

Fill both blanks to correctly assert a property from fixture data in a test.

Cypress

cy.fixture('profile.json').then((data) => {
  expect(data.[1]).to.[2]('active')
})

Drag options to blanks, or click blank then click option'

Astatus

Bequal

Cinclude

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong property name that does not exist in the fixture.

Using an assertion method that checks inclusion instead of equality.

The fixture data property to check is 'status'. The assertion method to check equality is 'equal'.

5fill in blank

hard

Fill all three blanks to create a test that loads a fixture, visits a URL, and asserts a page element contains fixture data.

Cypress

cy.fixture('[1]').then((user) => {
  cy.visit('[2]')
  cy.get('[3]').should('contain', user.name)
})

Drag options to blanks, or click blank then click option'

Auser.json

B/profile

C.profile-name

Dsettings.json

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong fixture filename that does not contain 'name'.

Visiting an unrelated URL.

Using an incorrect or missing selector for the element.

The fixture file is 'user.json'. The test visits the '/profile' page. The selector '.profile-name' targets the element showing the user's name.

Practice

1. What is the main purpose of using fixtures in Cypress tests?

easy

A. To load external static data files for use in tests

B. To create dynamic test data during test execution

C. To define custom commands for repeated actions

D. To configure browser settings before tests run

Solution

1. Step 1: Understand what fixtures are

   Fixtures are files that hold static data like JSON or text files used in tests.

2. Step 2: Identify their purpose in Cypress

   They help load this external data into tests to simulate real data inputs or responses.

3. Final Answer:

   To load external static data files for use in tests -> Option A

4. Quick Check:

   Fixtures = external static data [OK]

Hint: Fixtures hold static test data files for easy reuse [OK]

Common Mistakes:

• Thinking fixtures create dynamic data
• Confusing fixtures with custom commands
• Assuming fixtures configure browser settings

2. Which of the following is the correct syntax to load a fixture named user.json in a Cypress test?

easy

A. cy.readFile('user.json').then((data) => { ... })

B. cy.loadFixture('user.json').then((data) => { ... })

C. cy.fixture('user.json').then((data) => { ... })

D. cy.getFixture('user.json').then((data) => { ... })

Solution

1. Step 1: Recall the Cypress fixture command

   The correct command to load fixture data is cy.fixture().

2. Step 2: Match the syntax with the options

   cy.fixture('user.json').then((data) => { ... }) uses cy.fixture('user.json').then((data) => { ... }), which is correct syntax.

3. Final Answer:

   cy.fixture('user.json').then((data) => { ... }) -> Option C

4. Quick Check:

   Use cy.fixture() to load fixture files [OK]

Hint: Use cy.fixture() to load fixture files [OK]

Common Mistakes:

• Using non-existent commands like cy.loadFixture or cy.getFixture
• Confusing cy.readFile with cy.fixture
• Omitting the .then() to access data

3. Given the fixture file user.json contains { "name": "Alice", "age": 30 }, what will the following Cypress code print?

cy.fixture('user.json').then((user) => {
  cy.log(`Name: ${user.name}, Age: ${user.age}`)
})

medium

A. SyntaxError due to template string

B. Name: undefined, Age: undefined

C. Name: user.name, Age: user.age

D. Name: Alice, Age: 30

Solution

1. Step 1: Understand fixture data loading

   The fixture loads JSON data with keys "name" and "age" correctly.

2. Step 2: Analyze the template string usage

   The template string uses ${user.name} and ${user.age} to insert values.

3. Final Answer:

   Name: Alice, Age: 30 -> Option D

4. Quick Check:

   Fixture data accessed correctly = prints values [OK]

Hint: Template strings insert fixture data values directly [OK]

Common Mistakes:

• Expecting undefined because of async confusion
• Misreading template string syntax
• Assuming fixture data keys are different

4. What is wrong with this Cypress test code snippet that tries to use fixture data?

cy.fixture('data.json').then((data) => {
  cy.get('#name').type(data.name)
})
cy.get('#submit').click()

medium

A. The cy.get('#submit').click() runs before fixture loads

B. The fixture file name is incorrect

C. The type() command is invalid

D. Missing assertion after typing

Solution

1. Step 1: Check command chaining and timing

   The cy.get('#submit').click() runs immediately, not waiting for fixture to load.

2. Step 2: Understand Cypress command queue

   Commands outside the then() run before the fixture data is ready, causing timing issues.

3. Final Answer:

   The cy.get('#submit').click() runs before fixture loads -> Option A

4. Quick Check:

   Commands must chain to wait for fixture data [OK]

Hint: Chain commands inside .then() to ensure order [OK]

Common Mistakes:

• Placing commands outside fixture .then() causing race conditions
• Assuming fixture loads instantly
• Ignoring Cypress command queue behavior

5. You want to use a fixture named profile.json in multiple tests inside a describe block. Which is the best way to load it once and reuse the data in all tests?

hard

A. Load fixture inside each it() test separately

B. Use before() hook to load fixture and assign to this context

C. Use cy.readFile() in each test to read the fixture

D. Import the fixture JSON file directly using import statement

Solution

1. Step 1: Understand fixture reuse in Cypress

   Loading fixture once in before() hook improves efficiency and shares data.

2. Step 2: Assign fixture data to this context

   Using function() syntax allows this.data access in tests.

3. Final Answer:

   Use before() hook to load fixture and assign to this context -> Option B

4. Quick Check:

   before() loads fixture once for all tests [OK]

Hint: Load fixture once in before() and save to this [OK]

Common Mistakes:

• Loading fixture repeatedly in each test wasting time
• Using arrow functions preventing this context access
• Confusing cy.readFile with cy.fixture for fixtures