A simple string-based calculator built using Ruby with TDD practices. This project demonstrates the Test-Driven Development (TDD) approach by implementing a string calculator that supports custom delimiters, handling multiple delimiters, and handling various edge cases like negative numbers.
- Add numbers provided as a comma-separated string.
- Supports custom delimiters of any length, e.g.,
//[***]\n1***2***3. - Handles multiple custom delimiters, e.g.,
//[*][%]\n1*2%3. - Handles delimiters of varying lengths, e.g.,
//[***][%%]\n1***2%%3. - Throws exceptions for negative numbers with details of the negative values.
- Clone the repository:
git clone https://github.com/rishirajkumar97/calculator.git cd calculator - Install dependencies:
bundle install
- Run tests to ensure everything is set up correctly:
bundle exec rspec
- Navigate to the project directory:
cd calculator - Start the IRB Terminal using the command
irb
- Use the calculator.rb file to perform calculations. For example:
require './calculator'
calculator = Calculator.new
# Examples
puts calculator.add("") # Output: 0
puts calculator.add("1") # Output: 1
puts calculator.add("1,2") # Output: 3
puts calculator.add("1\n2,3") # Output: 6
puts calculator.add("//[***]\n1***2***3") # Output: 6
puts calculator.add("//[*][%]\n1*2%3") # Output: 6
puts calculator.add("//[***][%%]\n1***2%%3") # Output: 6