README.md

Hours with Experts Coding Challenge: Scala

Many years ago, the perfect cookie recipe was created and then lost... until now. An encrypted version was discovered and it is up to you to recover the recipe so that the perfect cookie can be created once again.

The recipe is encrypted using a simple substitution cipher. For example, the encoded string hgiikf can be decoded to butter:

encoded -> decoded
      h -> b
      g -> u
      i -> t
      i -> t
      k -> e
      f -> r

The cipher is provided for you in a variable named ENCODING.

Challenge #1: Decode a string

Implement a function named decodeString that takes an encoded string and returns the decoded value (hgiikf is decoded to butter).

Hint: See the function definition in SecretRecipeDecoder.scala.

Challenge #2: Decode an Ingredient

Implement a function named decodeIngredient that takes a line from the recipe and returns a new Ingredient (a class already defined for you). The # sign delimits the encoded amount and the description of an ingredient. For example, the line 8 vgl#hgiikf would return an Ingredient with an amount of 1 cup and a description of butter.

Hint: See the function definition inside the SecretRecipeDecoder.scala file.

Challenge #3: Decode the entire recipe

In the main method, read all of the ingredients out of secret_recipe.txt, decode each ingredient (hopefully using the functions you implemented above), and save the output into a new file named decoded_recipe.txt.

Testing the project

There are some unit tests in SecretRecipeDecoderTest.scala