evening-oo-brussels-sprouts-validator.md

##OMG We Need to Validate Recipes!!

###Learning Goals

• Implement Class methods to check inputs

###Instructions Your client is highly allergic to many foods and can only eat recipes that contain certain types of ingredients, which are the ones below:

brussels sprouts
spinach
eggs
milk
tofu
seitan
bell peppers
quinoa
kale
chocolate
beer
wine
whiskey

If a recipe contains any ingredients other than these, your client will have to be sent to the hospital. That would be bad, both for your client and for your career as a developer. So what can you do?

Update your code from last evening to include class methods that check for the following:

• Implement an instance method in your Ingredient class that helps check whether an ingredient is valid (i.e., contains only one of the above ingredient names)?
• Write an Recipe instance method that returns true or false dependent on whether or not your client can have that particular dish.
• What if your input to your Ingredient class comes in a different format? Write an Ingredient class method called parse which takes in a string that will look like 47 lb(s) Brussels sprouts or 5 tspn(s) milk and generates a variable of the Ingredient class in the right format.

###Output Submit your updated code in code.rb and include some example cases (meaning, generate your own recipe with name, instructions and ingredients) and return your validations of these recipes (whether or not they fit the criteria in the instructions above).