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exercise-use-approvals.md

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Exercise - Use Approvals

Goal

Now, let's rebuild fizzbuzz with approvals.

Steps

Hint: use Split Editor to follow along

Note: take your time, we don't have to complete all steps

  • reset the code to its starting position

    • there's a script for that on the ./menu.sh

  • run the approval test

    • there's a script for that too on the ./menu.sh
    • see it fail
    • see the diff tool open

  • make the test pass with no errors (you can follow links with ctrl + enter) test is here code is here

    • make the code right
    • "approve" the result
      • copy from left to right in the diff tool
        • use the UI button
      • save
    • see the test pass

  • run the approval test continuously in the terminal

    • you can find the relevant script with ./menu.sh
    • test should still pass

  • fizzbuzz(2)

    • refactor our code to introduce a loop over n
    • see the test still pass for n == 1
    • add n == 2 to the loop
    • change the fizzbuzz code until the diff is good
    • "approve" the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(3)

    • loop up to n == 3
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(4)

    • loop up to n == 4
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(5)

    • loop up to n == 5
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(6)

    • loop up to n == 6
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(10)

    • loop up to n == 10
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • fizzbuzz(15)

    • loop up to n == 15
    • change the fizzbuzz code until the diff is good
    • approve the diff
    • see the test pass
    • refactor if you like

  • loop up to n == 35

    • approve the diff
    • see the test pass
    • refactor if you like

  • add Whizz and Bang, using the same approach as earlier steps see the "Follow-up requirements" section here

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