Dynamic test data generation in Cypress - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to generate a random email for testing.

Cypress

const randomEmail = `user$[1]@example.com`;

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AMath.random().toString(36).substring(2, 10)

BDate.now()

Cnew Date()

DMath.floor(Math.random())

Attempts:

3 left

💡 Hint

Common Mistakes

Using Date.now() alone may cause collisions if tests run quickly.

Using new Date() returns an object, not a string.

Math.floor(Math.random()) always returns 0.

Using Math.random().toString(36).substring(2, 10) generates a random string suitable for unique emails.

2fill in blank

medium

Complete the code to create a random username with a prefix.

Cypress

const username = `user_$[1]`;

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

AMath.random()

BMath.floor(Math.random() * 10000)

CDate.now()

Dnew Date().getTime()

Attempts:

3 left

💡 Hint

Common Mistakes

Using Math.random() alone returns a decimal, not suitable for usernames.

Using Date.now() or getTime() may cause long numbers.

Math.floor(Math.random() * 10000) generates a random integer between 0 and 9999, good for usernames.

3fill in blank

hard

Fix the error in the code to generate a random password of length 8.

Cypress

const password = Array.from({ length: 8 }, () => [1]).join('');

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AMath.random().toString(36).charAt(8)

BMath.random().toString(36).charAt(0)

CMath.random().toString(36).charAt(10)

DMath.random().toString(36).charAt(2)

Attempts:

3 left

💡 Hint

Common Mistakes

Using charAt(0) returns '0' always.

Using charAt(10) or charAt(8) may return empty string.

Using charAt(2) gets a valid character from the random string. charAt(0) is '0', and higher indexes may be undefined.

4fill in blank

hard

Fill both blanks to create a dynamic test user object with random id and email.

Cypress

const testUser = { id: [1], email: `test$[2]@mail.com` };

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AMath.floor(Math.random() * 1000)

BMath.random()

CDate.now()

DMath.random().toString(36).substring(2, 8)

Attempts:

3 left

💡 Hint

Common Mistakes

Using Math.random() directly for id gives a decimal.

Using Date.now() for email part creates long numbers.

Use Math.floor(Math.random() * 1000) for a random id number and Math.random().toString(36).substring(2, 8) for a random email string.

5fill in blank

hard

Fill all three blanks to generate a dynamic test data object with username, password, and email.

Cypress

const testData = { username: `user$[1]`, password: Array.from({ length: 6 }, () => [2]).join(''), email: `email$[3]@test.com` };

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

AMath.floor(Math.random() * 5000)

BMath.random().toString(36).charAt(2)

CMath.random().toString(36).substring(2, 6)

DDate.now()

Attempts:

3 left

💡 Hint

Common Mistakes

Using Math.random() directly for username causes decimals.

Using charAt(0) for password returns '0' always.

Using Date.now() for email part creates long numbers.

Use Date.now() for username suffix for uniqueness, charAt(2) for password characters, and substring(2, 6) for email random part.