Summary

Build a Ruby module that can accurately process tip amounts based on input with multiple data type options.

Exercise File

Code File

Exercise Description

The key to this exercise is understanding how to properly manage multiple data type inputs and then to process the tip calculations.

Example Behavior

Tippy::Builder.new(total: 100, gratuity: '23.5').generate # 123.5
Tippy::Builder.new(total: 100, gratuity: 'high').generate # 125.0
Tippy::Builder.new(total: 100, gratuity: 'LOW').generate # 115.0
Tippy::Builder.new(total: 100, gratuity: 'standard').generate # 118.0
Tippy::Builder.new(total: 100, gratuity: '18').generate # 118.0
Tippy::Builder.new(total: 100, gratuity: 20).generate # 120.0
Tippy::Builder.new(total: 100, gratuity: 0).generate # 100.0

Please note that you need to handle:

• Parsing string based numbers such as '20'
• Traditional integers
• Words, such as high, standard, and low. You can look at the tests to figure out what percentages those words should represent.

Real World Usage

This is going to be a challenging exercise that will test a number of coding techniques, such as:

• Working with modules and classes
• Performing metaprogramming
• Control flow for varying data types
• Regular expressions

Each of these components are utilized in day to day development.

Solution

Can be found on the solutions branch on github.