# Intro to Unit Testing | raywenderlich.com

**URL:** <https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417>\
**Category:** 🎓 Courses & Articles\
**Created:** [December 24, 2020, 6:22am UTC](https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417 "2020-12-24T06:22:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rwenderlich](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/rwenderlich/32/108604_2.png) [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\
**Post date:** [December 24, 2020, 6:22am UTC](https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417/1 "2020-12-24T06:22:29Z")

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This is a companion discussion topic for the original entry at [https://www.raywenderlich.com/17493408-your-first-ios-and-swiftui-app-an-app-from-scratch/lessons/22](https://www.raywenderlich.com/17493408-your-first-ios-and-swiftui-app-an-app-from-scratch/lessons/22)

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**Author:** ![tseplyaev](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/tseplyaev/32/81494_2.png) [@tseplyaev](https://forums.kodeco.com/u/tseplyaev)\
**Post date:** [February 24, 2021, 5:27pm UTC](https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417/2 "2021-02-24T17:27:50Z")

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Hi, Ray!

I have asked you a question in SwiftUi State and you sent me some links.  
I have had a beginner acount, so I don’t access to these materials. Fo example, some words become not english (look for attach), so, buying pro account I will get all the materials in your website. I am a begginner right now, so, not all books and materials are available for me. Am I right?! ![Words are not correct](https://files.chunter.kodeco.com/original/3X/4/c/4c3b6c8be27b2e3f0cb2a2a125540e3f83106278.jpeg)

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**Author:** ![rwenderlich](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/rwenderlich/32/108604_2.png) [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\
**Post date:** [February 24, 2021, 10:12pm UTC](https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417/3 "2021-02-24T22:12:25Z")

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Hi! Sorry I wasn’t sure which subscription type you had when you posted your message. Yes, SwiftUI by Tutorials is only accessible in the Pro subscription. But like I said, we’re coming out with a new book SwiftUI Apprentice soon that is for beginners and will be included in the Beginner subscription!

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**Author:** ![sappy22](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/sappy22/32/81494_2.png) [@sappy22](https://forums.kodeco.com/u/sappy22)\
**Post date:** [July 19, 2021, 11:24pm UTC](https://forums.kodeco.com/t/intro-to-unit-testing-raywenderlich-com/128417/5 "2021-07-19T23:24:49Z")

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Even after the “@testable import Bullseye”, the error persists. How do I solve it?