Apply linting rules

Gemfile

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in planet_express.gemspec
 gemspec
 
-gem 'rake'
+gem "rake"
-gem 'rspec'
+gem "rspec"
-gem 'factory_bot'
+gem "factory_bot"
-gem 'standard'
+gem "standard"
-gem 'simplecov'
+gem "simplecov"

Rakefile

@@ -1,15 +1,15 @@
 # frozen_string_literal: true
 
-require 'bundler/gem_tasks'
+require "bundler/gem_tasks"
-require 'rspec/core/rake_task'
+require "rspec/core/rake_task"
-require 'planet_express'
+require "planet_express"
 
 RSpec::Core::RakeTask.new(:spec)
 
 task default: :spec
 
 task :process, [:input_file] do |_t, args|
-  file = File.open(args.input_file, 'r')
+  file = File.open(args.input_file, "r")
 
   shipping_option_repository = PlanetExpress::ShippingOptionRepository.new
   shipment_repository = PlanetExpress::ShipmentRepository.new(data: [])

lib/planet_express.rb

@@ -1,28 +1,28 @@
 # frozen_string_literal: true
 
-require 'planet_express/date'
+require "planet_express/date"
 
-require 'planet_express/version'
+require "planet_express/version"
-require 'planet_express/repository'
+require "planet_express/repository"
 
-require 'planet_express/discounts/discount'
+require "planet_express/discounts/discount"
-require 'planet_express/discounts/discount_budget'
+require "planet_express/discounts/discount_budget"
-require 'planet_express/discounts/discount_budget_for_month_repository'
+require "planet_express/discounts/discount_budget_for_month_repository"
 
-require 'planet_express/shipments/invalid_shipment'
+require "planet_express/shipments/invalid_shipment"
-require 'planet_express/shipments/shipment'
+require "planet_express/shipments/shipment"
-require 'planet_express/shipments/shipment_repository'
+require "planet_express/shipments/shipment_repository"
-require 'planet_express/shipments/shipment_reader'
+require "planet_express/shipments/shipment_reader"
-require 'planet_express/shipments/shipment_formatter'
+require "planet_express/shipments/shipment_formatter"
 
-require 'planet_express/shipping_options/shipping_option'
+require "planet_express/shipping_options/shipping_option"
-require 'planet_express/shipping_options/shipping_option_repository'
+require "planet_express/shipping_options/shipping_option_repository"
 
-require 'planet_express/rules/rule'
+require "planet_express/rules/rule"
-require 'planet_express/rules/s_shipment_discount_rule'
+require "planet_express/rules/s_shipment_discount_rule"
-require 'planet_express/rules/l_shipment_discount_rule'
+require "planet_express/rules/l_shipment_discount_rule"
 
-require 'planet_express/shipment_discount_calculator'
+require "planet_express/shipment_discount_calculator"
 
 module PlanetExpress
 end

lib/planet_express/date.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'date'
+require "date"
 
 # Nasty monkey patching to make date objects know about the beginning of a month
 class Date

lib/planet_express/repository.rb

@@ -14,8 +14,8 @@ module PlanetExpress
       data
     end
 
-    def each(&block)
+    def each(&)
-      data.each(&block)
+      data.each(&)
     end
 
     def add(item)

lib/planet_express/shipments/shipment_formatter.rb

@@ -21,11 +21,11 @@ module PlanetExpress
       price = shipment.price_with_discounts
       discount = shipment.total_discount_amount
 
-      "#{date} #{package_size} #{provider} #{format_money(price)} #{discount.zero? ? '-' : format_money(discount)}"
+      "#{date} #{package_size} #{provider} #{format_money(price)} #{discount.zero? ? "-" : format_money(discount)}"
     end
 
     def format_money(amount)
-      amount.to_s.rjust(3, '0').insert(-3, '.')
+      amount.to_s.rjust(3, "0").insert(-3, ".")
     end
   end
 end

lib/planet_express/shipments/shipment_reader.rb

@@ -18,7 +18,7 @@ module PlanetExpress
         shipping_option = find_shipping_option(row)
 
         if date.nil? || shipping_option.nil?
-          yield InvalidShipment.new(row.join(' '))
+          yield InvalidShipment.new(row.join(" "))
         else
           yield Shipment.new(date, shipping_option)
         end

lib/planet_express/shipping_options/shipping_option.rb

@@ -3,15 +3,15 @@
 module PlanetExpress
   ShippingOption = Struct.new(:provider, :package_size, :price_in_cents) do
     def s_shipment?
-      package_size == 'S'
+      package_size == "S"
     end
 
     def l_shipment?
-      package_size == 'L'
+      package_size == "L"
     end
 
     def lp_provider?
-      provider == 'LP'
+      provider == "LP"
     end
 
     def inspect

lib/planet_express/shipping_options/shipping_option_repository.rb

@@ -24,12 +24,12 @@ module PlanetExpress
 
     def default_data
       [
-        ShippingOption.new('LP', 'S', 150),
+        ShippingOption.new("LP", "S", 150),
-        ShippingOption.new('LP', 'M', 490),
+        ShippingOption.new("LP", "M", 490),
-        ShippingOption.new('LP', 'L', 690),
+        ShippingOption.new("LP", "L", 690),
-        ShippingOption.new('MR', 'S', 200),
+        ShippingOption.new("MR", "S", 200),
-        ShippingOption.new('MR', 'M', 300),
+        ShippingOption.new("MR", "M", 300),
-        ShippingOption.new('MR', 'L', 400)
+        ShippingOption.new("MR", "L", 400)
       ]
     end
 
@@ -48,7 +48,7 @@ module PlanetExpress
         [option.package_size, option.price_in_cents]
       end
 
-      @lowest_price_lookup_table = Hash[lowest_price_per_option_tuples]
+      @lowest_price_lookup_table = lowest_price_per_option_tuples.to_h
     end
   end
 end

lib/planet_express/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module PlanetExpress
-  VERSION = '0.1.0'
+  VERSION = "0.1.0"
 end

planet_express.gemspec

@@ -1,22 +1,22 @@
 # frozen_string_literal: true
 
-require_relative 'lib/planet_express/version'
+require_relative "lib/planet_express/version"
 
 Gem::Specification.new do |spec|
-  spec.name          = 'planet_express'
+  spec.name = "planet_express"
   spec.version = PlanetExpress::VERSION
-  spec.authors       = ['Tim Kächele']
+  spec.authors = ["Tim Kächele"]
-  spec.email         = ['mail@timkaechele.me']
+  spec.email = ["mail@timkaechele.me"]
 
-  spec.summary       = 'Calculate your shipment discounts easily'
+  spec.summary = "Calculate your shipment discounts easily"
-  spec.description   = 'A library to calculate the applicable shipment discounts for a list of shipments.'
+  spec.description = "A library to calculate the applicable shipment discounts for a list of shipments."
-  spec.homepage      = 'https://git.timkaechele.me/timkaechele/planet_express'
+  spec.homepage = "https://git.timkaechele.me/timkaechele/planet_express"
-  spec.license       = 'MIT'
+  spec.license = "MIT"
-  spec.required_ruby_version = Gem::Requirement.new('>= 2.4.0')
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.4.0")
 
   spec.metadata["allowed_push_host"] = "https://git.timkaechele.me/api/packages/timkaechele/rubygems"
 
-  spec.metadata['homepage_uri'] = spec.homepage
+  spec.metadata["homepage_uri"] = spec.homepage
   # spec.metadata["source_code_uri"] = "TODO: Put your gem's public repo URL here."
   # spec.metadata["changelog_uri"] = "TODO: Put your gem's CHANGELOG.md URL here."
 
@@ -25,9 +25,7 @@ Gem::Specification.new do |spec|
   spec.files = Dir.chdir(File.expand_path(__dir__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end
-  spec.bindir        = 'exe'
+  spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
-  spec.require_paths = ['lib']
+  spec.require_paths = ["lib"]
-
-
 end

spec/discount_budget_for_month_spec.rb

@@ -5,15 +5,15 @@ RSpec.describe PlanetExpress::DiscountBudgetForMonthRepository do
   let(:march_date_a) { Date.new(2021, 3, 6) }
   let(:march_date_b) { Date.new(2021, 3, 6) }
 
-  describe '#for_month' do
+  describe "#for_month" do
-    it 'returns the same discount budget for the same month' do
+    it "returns the same discount budget for the same month" do
       expect(subject.for_month(march_date_a).object_id).to(
         eq(subject.for_month(march_date_b).object_id)
       )
     end
 
-    context 'not yet initialized month' do
+    context "not yet initialized month" do
-      it 'returns a discount budget' do
+      it "returns a discount budget" do
         result = subject.for_month(march_date_a)
 
         expect(result).to be_an_instance_of(PlanetExpress::DiscountBudget)
@@ -21,9 +21,9 @@ RSpec.describe PlanetExpress::DiscountBudgetForMonthRepository do
       end
     end
 
-    context 'other month' do
+    context "other month" do
       let(:april_date) { Date.new(2021, 4, 12) }
-      it 'returns a different discount budget' do
+      it "returns a different discount budget" do
         expect(subject.for_month(march_date_a).object_id).to_not(eq(
           subject.for_month(april_date).object_id
         ))

spec/discount_budget_spec.rb

@@ -4,17 +4,17 @@ RSpec.describe PlanetExpress::DiscountBudget do
   let(:budget) { 500 }
   subject { described_class.new(budget: budget) }
 
-  describe '#register_applied_discount' do
+  describe "#register_applied_discount" do
-    context 'with sufficient remaining budget' do
+    context "with sufficient remaining budget" do
-      it 'returns the full discount' do
+      it "returns the full discount" do
         expect(subject.register_applied_discount(120)).to eq(120)
         expect(subject.available_budget).to eq(380)
         expect(subject.remaining_budget?).to eq(true)
       end
     end
 
-    context 'with insufficient remaining budget' do
+    context "with insufficient remaining budget" do
-      it 'returns only the remaining budget' do
+      it "returns only the remaining budget" do
         expect(subject.register_applied_discount(650)).to eq(500)
         expect(subject.available_budget).to eq(0)
         expect(subject.remaining_budget?).to eq(false)
@@ -22,15 +22,15 @@ RSpec.describe PlanetExpress::DiscountBudget do
     end
   end
 
-  describe '#maximum_possible_discount' do
+  describe "#maximum_possible_discount" do
-    context 'with sufficient budget' do
+    context "with sufficient budget" do
-      it 'returns the full discount amount' do
+      it "returns the full discount amount" do
         expect(subject.maximum_possible_discount(300)).to eq(300)
       end
     end
 
-    context 'with insufficient budget' do
+    context "with insufficient budget" do
-      it 'returns the maximum possible amount' do
+      it "returns the maximum possible amount" do
         expect(subject.maximum_possible_discount(600)).to eq(500)
       end
     end

spec/factories/shipping_options.rb

@@ -2,7 +2,7 @@
 
 FactoryBot.define do
   factory :shipping_option, class: PlanetExpress::ShippingOption do
-    sequence(:provider) { 'LP' }
+    sequence(:provider) { "LP" }
     sequence(:package_size) { %w[S M L].sample }
     sequence(:price_in_cents) { |i| i * 100 }
   end

spec/l_shipment_discount_rule_spec.rb

@@ -14,30 +14,30 @@ RSpec.describe PlanetExpress::LShipmentDiscountRule do
   end
 
   let(:correct_shipping_option) do
-    shipping_option_repo.find_by_provider_and_package_size('LP', 'L')
+    shipping_option_repo.find_by_provider_and_package_size("LP", "L")
   end
 
   let(:applicable_shipment) do
     PlanetExpress::Shipment.new(Date.today, correct_shipping_option)
   end
 
-  context 'l_shipment' do
+  context "l_shipment" do
-    context 'not the third shipment' do
+    context "not the third shipment" do
-      it 'does not apply the discount' do
+      it "does not apply the discount" do
         expect do
           subject.apply_to(applicable_shipment)
         end.to_not(change { applicable_shipment.discounts })
       end
     end
 
-    context 'third shipment for LP' do
+    context "third shipment for LP" do
-      context 'LP provider' do
+      context "LP provider" do
         before(:each) do
           shipment_repo.add(applicable_shipment)
           shipment_repo.add(applicable_shipment)
         end
 
-        it 'does apply the discount' do
+        it "does apply the discount" do
           expect do
             subject.apply_to(applicable_shipment)
           end.to(change { applicable_shipment.discounts.length }.by(1))
@@ -46,7 +46,7 @@ RSpec.describe PlanetExpress::LShipmentDiscountRule do
           expect(discount.amount).to eq(applicable_shipment.shipping_option.price_in_cents)
         end
 
-        it 'updates the discount budget' do
+        it "updates the discount budget" do
           expected_difference = -applicable_shipment.shipping_option.price_in_cents
 
           expect do
@@ -55,38 +55,38 @@ RSpec.describe PlanetExpress::LShipmentDiscountRule do
         end
       end
 
-      context 'non LP provider' do
+      context "non LP provider" do
         before(:each) do
           shipment_repo.add(applicable_shipment)
           shipment_repo.add(applicable_shipment)
         end
         let(:shipping_option) do
-          shipping_option_repo.find_by_provider_and_package_size('MR', 'L')
+          shipping_option_repo.find_by_provider_and_package_size("MR", "L")
         end
         let(:shipment) do
           PlanetExpress::Shipment.new(Date.today, shipping_option)
         end
 
-        it 'does not update the discounts' do
+        it "does not update the discounts" do
           expect do
             subject.apply_to(shipment)
           end.to_not(change { shipment.discounts })
         end
       end
 
-      context 'non L shipment' do
+      context "non L shipment" do
         before(:each) do
           shipment_repo.add(applicable_shipment)
           shipment_repo.add(applicable_shipment)
         end
         let(:shipping_option) do
-          shipping_option_repo.find_by_provider_and_package_size('LP', 'M')
+          shipping_option_repo.find_by_provider_and_package_size("LP", "M")
         end
         let(:shipment) do
           PlanetExpress::Shipment.new(Date.today, shipping_option)
         end
 
-        it 'does not update the discounts' do
+        it "does not update the discounts" do
           expect do
             subject.apply_to(shipment)
           end.to_not(change { shipment.discounts })

spec/planet_express_spec.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 RSpec.describe PlanetExpress do
-  it 'has a version number' do
+  it "has a version number" do
     expect(PlanetExpress::VERSION).not_to be nil
   end
 end

spec/repository_spec.rb

@@ -13,39 +13,39 @@ RSpec.describe PlanetExpress::Repository do
 
   subject { described_class.new(data: entries) }
 
-  describe '#where' do
+  describe "#where" do
-    context 'no data' do
+    context "no data" do
       let(:entries) { [] }
 
-      it 'returns an empty array' do
+      it "returns an empty array" do
         expect(subject.where).to eq([])
       end
     end
 
-    context 'no arguments' do
+    context "no arguments" do
       before(:each) do
         expect(subject.all).to_not be_empty
       end
 
-      it 'returns all items' do
+      it "returns all items" do
         expect(subject.where).to eq(subject.all)
       end
     end
 
-    context 'with existing attribute' do
+    context "with existing attribute" do
       let(:expected_item) do
-        repository_item_class.new(150, 'Testing')
+        repository_item_class.new(150, "Testing")
       end
 
       let(:entries) { repository_items + [expected_item] }
 
-      it 'returns a list with the expected item' do
+      it "returns a list with the expected item" do
-        expect(subject.where(test_attribute_a: 150, test_attribute_b: 'Testing')).to eq([expected_item])
+        expect(subject.where(test_attribute_a: 150, test_attribute_b: "Testing")).to eq([expected_item])
       end
     end
 
-    context 'with unknown attribute' do
+    context "with unknown attribute" do
-      it 'throws an exception' do
+      it "throws an exception" do
         expect do
           subject.where(unknown_attribute: nil)
         end.to raise_error(NoMethodError)
@@ -53,24 +53,24 @@ RSpec.describe PlanetExpress::Repository do
     end
   end
 
-  describe '#add' do
+  describe "#add" do
-    let(:item) { repository_item_class.new(152, 'Testing') }
+    let(:item) { repository_item_class.new(152, "Testing") }
 
-    it 'adds the item to the list' do
+    it "adds the item to the list" do
       subject.add(item)
 
-      expect(subject.where(test_attribute_a: 152, test_attribute_b: 'Testing')).to eq([item])
+      expect(subject.where(test_attribute_a: 152, test_attribute_b: "Testing")).to eq([item])
     end
   end
 
-  describe '#remove' do
+  describe "#remove" do
-    let(:item) { repository_item_class.new(153, 'Test') }
+    let(:item) { repository_item_class.new(153, "Test") }
 
-    it 'removes the item from the list' do
+    it "removes the item from the list" do
       subject.add(item)
 
       expect { subject.remove(item) }
-        .to(change { subject.where(test_attribute_a: 153, test_attribute_b: 'Test') }.to([]))
+        .to(change { subject.where(test_attribute_a: 153, test_attribute_b: "Test") }.to([]))
     end
   end
 end

spec/s_shipment_discount_rule_spec.rb

@@ -13,10 +13,10 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
     )
   end
 
-  context 's_shipment' do
+  context "s_shipment" do
-    context 'more expensive than cheapest option' do
+    context "more expensive than cheapest option" do
       let(:shipping_option) do
-        shipping_option_repo.find_by_provider_and_package_size('MR', 'S')
+        shipping_option_repo.find_by_provider_and_package_size("MR", "S")
       end
 
       let(:shipment) do
@@ -24,7 +24,7 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
           shipping_option)
       end
 
-      it 'does applies the discount' do
+      it "does applies the discount" do
         expect do
           subject.apply_to(shipment)
         end.to(change { shipment.discounts.length }.by(1))
@@ -32,16 +32,16 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
         expect(shipment.discounts.last.amount).to eq(50)
       end
 
-      it 'changes the discount budget' do
+      it "changes the discount budget" do
         expect do
           subject.apply_to(shipment)
         end.to(change { budget_repo.for_month(shipment.month).available_budget }.by(-50))
       end
     end
 
-    context 'equals cheapest options' do
+    context "equals cheapest options" do
       let(:shipping_option) do
-        shipping_option_repo.find_by_provider_and_package_size('LP', 'S')
+        shipping_option_repo.find_by_provider_and_package_size("LP", "S")
       end
 
       let(:shipment) do
@@ -49,7 +49,7 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
           shipping_option)
       end
 
-      it 'does not apply the discount' do
+      it "does not apply the discount" do
         expect do
           subject.apply_to(shipment)
         end.to_not(change { shipment.discounts })
@@ -57,9 +57,9 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
     end
   end
 
-  context 'non s_shipment' do
+  context "non s_shipment" do
     let(:shipping_option) do
-      shipping_option_repo.find_by_provider_and_package_size('LP', 'M')
+      shipping_option_repo.find_by_provider_and_package_size("LP", "M")
     end
 
     let(:shipment) do
@@ -67,7 +67,7 @@ RSpec.describe PlanetExpress::SShipmentDiscountRule do
         shipping_option)
     end
 
-    it 'does not apply the discount' do
+    it "does not apply the discount" do
       expect do
         subject.apply_to(shipment)
       end.to_not(change { shipment.discounts })

spec/shipment_discount_calculator_spec.rb

@@ -5,7 +5,7 @@ RSpec.describe PlanetExpress::ShipmentDiscountCalculator do
     PlanetExpress::ShippingOptionRepository.new(data: [])
   end
   let(:rule) do
-    double('Rule')
+    double("Rule")
   end
   let(:rules) do
     [rule]
@@ -16,19 +16,19 @@ RSpec.describe PlanetExpress::ShipmentDiscountCalculator do
       rules: rules)
   end
 
-  describe '#run' do
+  describe "#run" do
-    context 'with valid shipment' do
+    context "with valid shipment" do
       let(:shipment_reader) do
         [PlanetExpress::Shipment.new(Date.today, build(:shipping_option))]
       end
 
-      it 'does call the rule on the invalid shipment' do
+      it "does call the rule on the invalid shipment" do
         expect(rule).to receive(:apply_to)
 
         subject.run(shipment_reader)
       end
 
-      it 'adds the shipment to the shipment_repository' do
+      it "adds the shipment to the shipment_repository" do
         expect(rule).to receive(:apply_to)
 
         expect do
@@ -37,18 +37,18 @@ RSpec.describe PlanetExpress::ShipmentDiscountCalculator do
       end
     end
 
-    context 'with invalid shipment' do
+    context "with invalid shipment" do
       let(:shipment_reader) do
-        [PlanetExpress::InvalidShipment.new('Invalid')]
+        [PlanetExpress::InvalidShipment.new("Invalid")]
       end
 
-      it 'does not call the rule with the invalid shipment' do
+      it "does not call the rule with the invalid shipment" do
         expect(rule).to_not receive(:apply_to)
 
         subject.run(shipment_reader)
       end
 
-      it 'adds the shipment to the shipment_repository' do
+      it "adds the shipment to the shipment_repository" do
         expect do
           subject.run(shipment_reader)
         end.to(change { shipment_repository.all.length }.by(1))

spec/shipment_formatter_spec.rb

@@ -5,23 +5,23 @@ RSpec.describe PlanetExpress::ShipmentFormatter do
     described_class.new
   end
 
-  describe '#format' do
+  describe "#format" do
-    context 'invalid shipment' do
+    context "invalid shipment" do
       let(:shipment) do
-        PlanetExpress::InvalidShipment.new('Invalid Shipment')
+        PlanetExpress::InvalidShipment.new("Invalid Shipment")
       end
 
-      it 'returns a well formatted string' do
+      it "returns a well formatted string" do
-        expect(subject.format(shipment)).to eq('Invalid Shipment IGNORED')
+        expect(subject.format(shipment)).to eq("Invalid Shipment IGNORED")
       end
     end
 
-    context 'valid shipment' do
+    context "valid shipment" do
       let(:date) { Date.today }
       let(:shipping_option) do
         build(:shipping_option,
-              provider: 'T',
+          provider: "T",
-              package_size: 'S',
+          package_size: "S",
           price_in_cents: 120)
       end
 
@@ -29,32 +29,32 @@ RSpec.describe PlanetExpress::ShipmentFormatter do
         PlanetExpress::Shipment.new(date, shipping_option)
       end
 
-      it 'returns a well formatted string' do
+      it "returns a well formatted string" do
         result = subject.format(shipment)
-        parts = result.split(' ')
+        parts = result.split(" ")
 
         expect(parts[0]).to eq(date.iso8601)
         expect(parts[1]).to eq(shipping_option.package_size)
         expect(parts[2]).to eq(shipping_option.provider)
-        expect(parts[3]).to eq('1.20')
+        expect(parts[3]).to eq("1.20")
-        expect(parts[4]).to eq('-')
+        expect(parts[4]).to eq("-")
       end
 
-      context 'with discounts' do
+      context "with discounts" do
         before(:each) do
           shipment.add_discount(PlanetExpress::Discount.new(50, nil))
           shipment.add_discount(PlanetExpress::Discount.new(25, nil))
         end
 
-        it 'includes the discounts' do
+        it "includes the discounts" do
           result = subject.format(shipment)
-          parts = result.split(' ')
+          parts = result.split(" ")
 
           expect(parts[0]).to eq(date.iso8601)
           expect(parts[1]).to eq(shipping_option.package_size)
           expect(parts[2]).to eq(shipping_option.provider)
-          expect(parts[3]).to eq('0.45')
+          expect(parts[3]).to eq("0.45")
-          expect(parts[4]).to eq('0.75')
+          expect(parts[4]).to eq("0.75")
         end
       end
     end

spec/shipment_reader_spec.rb

@@ -3,41 +3,41 @@
 RSpec.describe PlanetExpress::ShipmentReader do
   let(:shipping_option_repsitory) { PlanetExpress::ShippingOptionRepository.new }
 
-  let(:input) { '' }
+  let(:input) { "" }
 
   subject { PlanetExpress::ShipmentReader.new(input, shipping_option_repsitory) }
 
-  describe '#each' do
+  describe "#each" do
-    context 'with a file' do
+    context "with a file" do
-      let(:input) { File.read(File.expand_path('fixtures/shipment_input_file.txt', __dir__)) }
+      let(:input) { File.read(File.expand_path("fixtures/shipment_input_file.txt", __dir__)) }
       let(:result) { subject.to_a }
 
-      it 'parses the file' do
+      it "parses the file" do
         expect(result.length).to eq(21)
         expect(result.select { |item| item.instance_of?(PlanetExpress::Shipment) }.length).to eq(20)
         expect(result.select { |item| item.instance_of?(PlanetExpress::InvalidShipment) }.length).to eq(1)
       end
     end
 
-    context 'with valid shipment' do
+    context "with valid shipment" do
-      let(:input) { '2015-02-01 S MR' }
+      let(:input) { "2015-02-01 S MR" }
 
       let(:result) { subject.to_a }
       let(:shipment) { result.first }
 
-      it 'returns a parsed shipment' do
+      it "returns a parsed shipment" do
         expect(shipment.date).to eq(Date.new(2015, 2, 1))
-        expect(shipment.shipping_option).to eq(PlanetExpress::ShippingOption.new('MR', 'S', 200))
+        expect(shipment.shipping_option).to eq(PlanetExpress::ShippingOption.new("MR", "S", 200))
       end
     end
 
-    context 'with an invalid shipment' do
+    context "with an invalid shipment" do
-      let(:input) { '2015-02-29 CUSPS' }
+      let(:input) { "2015-02-29 CUSPS" }
 
       let(:result) { subject.to_a }
       let(:shipment) { result.first }
 
-      it 'returns an invalid shipment' do
+      it "returns an invalid shipment" do
         expect(shipment).to be_an_instance_of(PlanetExpress::InvalidShipment)
       end
     end

spec/shipment_repository_spec.rb

@@ -4,11 +4,11 @@ RSpec.describe PlanetExpress::ShipmentRepository do
   let(:items) { [] }
   subject { described_class.new(data: items) }
 
-  describe 'rule_applied_in_month?' do
+  describe "rule_applied_in_month?" do
-    context 'empty repository' do
+    context "empty repository" do
       let(:items) { [] }
 
-      it 'returns false' do
+      it "returns false" do
         result = subject.rule_applied_in_month?(Date.today.begin_of_month,
           PlanetExpress::Rule)
 
@@ -16,9 +16,9 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with invalid shipments' do
+    context "with invalid shipments" do
-      let(:items) { [PlanetExpress::InvalidShipment.new('')] }
+      let(:items) { [PlanetExpress::InvalidShipment.new("")] }
-      it 'returns false' do
+      it "returns false" do
         result = subject.rule_applied_in_month?(Date.today.begin_of_month,
           PlanetExpress::Rule)
 
@@ -26,7 +26,7 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with valid shipment matching' do
+    context "with valid shipment matching" do
       let(:rule) do
         Object.new
       end
@@ -39,7 +39,7 @@ RSpec.describe PlanetExpress::ShipmentRepository do
 
       let(:items) { [shipment] }
 
-      it 'returns true' do
+      it "returns true" do
         result = subject.rule_applied_in_month?(Date.today.begin_of_month,
           rule.class)
 
@@ -47,7 +47,7 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with valid shipment not matching' do
+    context "with valid shipment not matching" do
       let(:rule) do
         Object.new
       end
@@ -64,7 +64,7 @@ RSpec.describe PlanetExpress::ShipmentRepository do
 
       let(:items) { [shipment] }
 
-      it 'returns false' do
+      it "returns false" do
         result = subject.rule_applied_in_month?(Date.today.begin_of_month,
           other_rule.class)
 
@@ -73,13 +73,13 @@ RSpec.describe PlanetExpress::ShipmentRepository do
     end
   end
 
-  describe '#l_shipment_count_for_provider_and_month' do
+  describe "#l_shipment_count_for_provider_and_month" do
-    context 'empty repository' do
+    context "empty repository" do
       let(:items) { [] }
 
-      it 'returns 0' do
+      it "returns 0" do
         result = subject.l_shipment_count_for_provider_and_month(
-          'LP',
+          "LP",
           Date.today.begin_of_month
         )
 
@@ -87,11 +87,11 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with invalid shipments' do
+    context "with invalid shipments" do
-      let(:items) { [PlanetExpress::InvalidShipment.new('')] }
+      let(:items) { [PlanetExpress::InvalidShipment.new("")] }
-      it 'returns 0' do
+      it "returns 0" do
         result = subject.l_shipment_count_for_provider_and_month(
-          'LP',
+          "LP",
           Date.today.begin_of_month
         )
 
@@ -99,17 +99,17 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with valid shipment matching' do
+    context "with valid shipment matching" do
       let(:shipment) do
         PlanetExpress::Shipment.new(Date.today,
           build(:shipping_option,
-                                          package_size: 'L'))
+            package_size: "L"))
       end
 
       let(:provider) { shipment.provider }
       let(:items) { [shipment] }
 
-      it 'returns 1' do
+      it "returns 1" do
         result = subject.l_shipment_count_for_provider_and_month(provider,
           Date.today.begin_of_month)
 
@@ -117,27 +117,27 @@ RSpec.describe PlanetExpress::ShipmentRepository do
       end
     end
 
-    context 'with valid shipment not matching' do
+    context "with valid shipment not matching" do
       let(:shipment) do
         PlanetExpress::Shipment.new(Date.today,
           build(:shipping_option,
-                                          package_size: 'L'))
+            package_size: "L"))
       end
 
       let(:provider) { shipment.provider }
       let(:items) { [shipment] }
 
-      context 'different provider' do
+      context "different provider" do
-        it 'returns 0' do
+        it "returns 0" do
-          result = subject.l_shipment_count_for_provider_and_month('MP_XXX_TEST',
+          result = subject.l_shipment_count_for_provider_and_month("MP_XXX_TEST",
             Date.today.begin_of_month)
 
           expect(result).to eq(0)
         end
       end
 
-      context 'different month' do
+      context "different month" do
-        it 'returns 0' do
+        it "returns 0" do
           result = subject.l_shipment_count_for_provider_and_month(provider,
             Date.today.next_month.begin_of_month)
 

spec/shipping_option_repository_spec.rb

@@ -3,26 +3,26 @@
 RSpec.describe PlanetExpress::ShippingOptionRepository do
   subject { PlanetExpress::ShippingOptionRepository.new }
 
-  describe '#lowest_price_for_package_size' do
+  describe "#lowest_price_for_package_size" do
-    it 'finds the lowest price for a package size' do
+    it "finds the lowest price for a package size" do
-      expect(subject.lowest_price_for_package_size('L')).to eq(400)
+      expect(subject.lowest_price_for_package_size("L")).to eq(400)
     end
   end
 
-  describe '#lowest_price_for_package_size' do
+  describe "#lowest_price_for_package_size" do
-    context 'existing option' do
+    context "existing option" do
-      it 'finds the correct shipping option' do
+      it "finds the correct shipping option" do
-        result = subject.find_by_provider_and_package_size('LP', 'S')
+        result = subject.find_by_provider_and_package_size("LP", "S")
 
-        expect(result.provider).to eq('LP')
+        expect(result.provider).to eq("LP")
-        expect(result.package_size).to eq('S')
+        expect(result.package_size).to eq("S")
         expect(result.price_in_cents).to eq(150)
       end
     end
 
-    context 'unknown option' do
+    context "unknown option" do
-      it 'returns nil' do
+      it "returns nil" do
-        result = subject.find_by_provider_and_package_size('UNKNOWN', 'S')
+        result = subject.find_by_provider_and_package_size("UNKNOWN", "S")
 
         expect(result).to eq(nil)
       end

spec/shipping_option_spec.rb

@@ -1,51 +1,51 @@
 # frozen_string_literal: true
 
 RSpec.describe PlanetExpress::ShippingOption do
-  describe '#s_shipment?' do
+  describe "#s_shipment?" do
-    context 'with S package size' do
+    context "with S package size" do
-      subject { build(:shipping_option, package_size: 'S') }
+      subject { build(:shipping_option, package_size: "S") }
-      it 'returns true' do
+      it "returns true" do
         expect(subject.s_shipment?).to eq(true)
       end
     end
 
-    context 'with non S package size' do
+    context "with non S package size" do
-      subject { build(:shipping_option, package_size: 'M') }
+      subject { build(:shipping_option, package_size: "M") }
-      it 'returns false' do
+      it "returns false" do
         expect(subject.s_shipment?).to eq(false)
       end
     end
   end
 
-  describe '#l_shipment?' do
+  describe "#l_shipment?" do
-    context 'with L package size' do
+    context "with L package size" do
-      subject { build(:shipping_option, package_size: 'L') }
+      subject { build(:shipping_option, package_size: "L") }
-      it 'returns true' do
+      it "returns true" do
         expect(subject.l_shipment?).to eq(true)
       end
     end
 
-    context 'with non L package size' do
+    context "with non L package size" do
-      subject { build(:shipping_option, package_size: 'M') }
+      subject { build(:shipping_option, package_size: "M") }
-      it 'returns false' do
+      it "returns false" do
         expect(subject.l_shipment?).to eq(false)
       end
     end
   end
 
-  describe '#lp_provider?' do
+  describe "#lp_provider?" do
-    context 'with LP provider' do
+    context "with LP provider" do
-      subject { build(:shipping_option, provider: 'LP') }
+      subject { build(:shipping_option, provider: "LP") }
 
-      it 'returns true' do
+      it "returns true" do
         expect(subject.lp_provider?).to eq(true)
       end
     end
 
-    context 'with non L package size' do
+    context "with non L package size" do
-      subject { build(:shipping_option, provider: 'MP') }
+      subject { build(:shipping_option, provider: "MP") }
 
-      it 'returns false' do
+      it "returns false" do
         expect(subject.lp_provider?).to eq(false)
       end
     end

spec/spec_helper.rb

@@ -1,16 +1,16 @@
 # frozen_string_literal: true
 
-require 'bundler/setup'
+require "bundler/setup"
-require 'active_support/inflector'
+require "active_support/inflector"
-require 'factory_bot'
+require "factory_bot"
-require 'simplecov'
+require "simplecov"
 SimpleCov.start
-require 'planet_express'
+require "planet_express"
-require 'rspec/mocks'
+require "rspec/mocks"
 
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure
-  config.example_status_persistence_file_path = '.rspec_status'
+  config.example_status_persistence_file_path = ".rspec_status"
 
   # Disable RSpec exposing methods globally on `Module` and `main`
   config.disable_monkey_patching!