Start TDDing in 5 minutes

TDD is awesome, but can be scary. Learn how to start practicing it in 5 minutes by fixing bugs, so we can kill two birds with one stone!

Transcript

1. Start TDDing in
   5 minutes
   

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2. About me
   Matheus Richard
   module Matheus
   def self.working_at() =
   "thoughtbot - Software Engineer"
   def self.blogging_at() =
   "https://matheusrich.com"
   def self.github_profile() =
   "@MatheusRich"
   def self.twitter() =
   "@MatheusRich"
   def self.other_hobbies() =
   %w[Gaming Playing\ guitar Skating]
   def self.studying() =
   %w[Crystal Rust]
   end
   

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3. TDD is awesome!
   😎
   

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4. TDD is awesome!
   But can be scary.
   😎
   😰
   

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5. Oh, no!
   🐛 You got a bug in production!
   🐛
   

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6. 💸 The famous Billion Dollar Mistake
   

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8. Let’s start with a test
   It has to reproduce the same error we saw
   earlier
   

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10. We run our test and...
    

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11. 💥 BOOM!
    

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12. Now, make it pass!
    

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14. 🤞 We run our test and...
    

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15. ✔ We’re green!
    

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16. 🤔 We TDDed, so…?
    

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17. 🐛
    We’ve fixed the bug
    💥
    
    

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18. 👍 We’ve added a test
    confirming our fix!
    

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19. TL;DR
    1. 🐛 Identify the bug;
    

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20. TL;DR
    1. 🐛 Identify the bug;
    2. ❌ Write a test that reproduces the error;
    

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21. TL;DR
    1. 🐛 Identify the bug;
    2. ❌ Write a test that reproduces the error;
    3. ✨ Fix the bug;
    

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22. TL;DR
    1. 🐛 Identify the bug;
    2. ❌ Write a test that reproduces the error;
    3. ✨ Fix the bug;
    4. ✔ Watch the test pass.
    

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23. That’s it!
    ➜ ~ Question.any?
    @MatheusRich www.matheusrich.com
    

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