Fuel App A tech task demo app, which calculates fuel required for the space flight. Usage: IRB: > require './lib/fuel_calc' > FuelCalc.calculate(mass: 28801, route: [[:launch, 9.807], [:land, 1.62], [:launch, 1.62], [:land, 9.807]]) > FuelCalc.calculate(mass: 75432, route: ["Earth", "Moon", "Moon", "Mars", "Mars", "Earth"]) > FuelCalc.calculate(mass: 75432, route: [:earth, :moon, :moon, :mars, :mars, :earth]) CLI: $ cd fuel_app $ ruby ./lib/fuel_calc.rb 75432 Earth Moon Moon Mars Mars Earth Tests: $ cd fuel_app $ ruby ./test/fuel_calc_test.rb