HW1

check.sh

@@ -1 +1 @@
-ruby ./hw1/fibonacci_test.rb
+ruby ./hw1/fibonacci_test.rb && (cd hw2 && bundle install && bundle exec rspec)

gem_example/web_config/.gitignore

@@ -0,0 +1,9 @@
+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/

gem_example/web_config/.rspec

@@ -0,0 +1,2 @@
+--format documentation
+--color

gem_example/web_config/.travis.yml

@@ -0,0 +1,5 @@
+sudo: false
+language: ruby
+rvm:
+  - 2.3.1
+before_install: gem install bundler -v 1.13.5

gem_example/web_config/Gemfile

@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in web_config.gemspec
+gemspec

gem_example/web_config/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Denis Sergienko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

gem_example/web_config/README.md

@@ -0,0 +1,41 @@
+# WebConfig
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/web_config`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'web_config'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install web_config
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/web_config.
+
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
+

gem_example/web_config/Rakefile

@@ -0,0 +1,6 @@
+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec

gem_example/web_config/bin/console

@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "web_config"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start

gem_example/web_config/bin/setup

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here

gem_example/web_config/lib/web_config.rb

@@ -0,0 +1,6 @@
+require "web_config/version"
+require "web_config/config"
+
+module WebConfig
+  # Your code goes here...
+end

gem_example/web_config/lib/web_config/config.rb

@@ -0,0 +1,13 @@
+class WebConfig::Config
+  attr_reader :host
+
+  def self.load(file)
+    host = file.readlines
+    raise if host.empty?
+    new(host: host)
+  end
+
+  def initialize(host: 'localhost')
+    @host = host
+  end
+end

gem_example/web_config/lib/web_config/version.rb

@@ -0,0 +1,3 @@
+module WebConfig
+  VERSION = "0.1.0"
+end

gem_example/web_config/spec/spec_helper.rb

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+$LOAD_PATH.unshift File.expand_path("../../lib", __FILE__)
+require "web_config"

gem_example/web_config/spec/web_config/config_spec.rb

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+require "spec_helper"
+
+describe WebConfig::Config do
+  describe '.load' do
+    let(:file) { instance_double('File') }
+    subject { described_class.load(file) }
+
+    before do
+      expect(file).to receive(:readlines).and_return(host)
+    end
+
+    context 'when file is valid' do
+      let(:host) { '172.17.0.1' }
+
+      it 'parses value' do
+        expect(subject.host).to eq host
+      end
+    end
+
+    context 'when file is not valid' do
+      let(:host) { '' }
+
+      it 'raises exception' do
+        expect { subject }.to raise_error(RuntimeError)
+      end
+    end
+  end
+
+  describe '#host' do
+    subject { config_instance.host }
+
+    context 'when there is default value' do
+      let(:config_instance) { described_class.new }
+
+      it 'returns default value' do
+        expect(subject).to eq 'localhost'
+      end
+    end
+
+    context 'when there is not default value' do
+      let(:config_instance) { described_class.new(host: host) }
+      let(:host) { '172.17.0.1' }
+
+      it 'returns specified value' do
+        expect(subject).to eq host
+      end
+    end
+  end
+
+  # describe '#port' do
+  #   context 'when there is default value' do
+  #   end
+  #
+  #   context 'when there is not default value' do
+  #   end
+  # end
+end

gem_example/web_config/spec/web_config_spec.rb

@@ -0,0 +1,7 @@
+require "spec_helper"
+
+describe WebConfig do
+  it "has a version number" do
+    expect(WebConfig::VERSION).not_to be nil
+  end
+end

gem_example/web_config/web_config.gemspec

@@ -0,0 +1,35 @@
+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'web_config/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "web_config"
+  spec.version       = WebConfig::VERSION
+  spec.authors       = ["Denis Sergienko"]
+  spec.email         = ["[email protected]"]
+
+  spec.summary       = %q{hekusfhsjkjsdk}
+  spec.homepage      = "http://example.com/"
+  spec.license       = "MIT"
+
+  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
+  # to allow pushing to a single host or delete this section to allow pushing to any host.
+  if spec.respond_to?(:metadata)
+    spec.metadata['allowed_push_host'] = "TODO: Set to 'http://mygemserver.com'"
+  else
+    raise "RubyGems 2.0 or newer is required to protect against " \
+      "public gem pushes."
+  end
+
+  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+    f.match(%r{^(test|spec|features)/})
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.13"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+end

hw1/fibonacci.rb

@@ -0,0 +1,19 @@
+class Fibonacci
+   include Enumerable
+
+   def initialize(length)
+     @length = length
+   end
+
+   def each(&block)
+     @result = []
+     for i in 1..@length
+       if i < 3
+         @result[i] = 1
+       else
+         @result[i] = @result[i - 1] + @result[i - 2]
+       end
+       yield @result[i]
+     end
+   end
+ end

hw2/.rspec

@@ -0,0 +1,2 @@
+--color
+--require spec_helper

hw2/Gemfile

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+source "https://rubygems.org"
+
+gem "rack"
+gem "rspec"

hw2/Gemfile.lock

@@ -0,0 +1,28 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.2.5)
+    rack (2.0.1)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-mocks (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rack
+  rspec
+
+BUNDLED WITH
+   1.13.5

hw2/app/app.rb

@@ -0,0 +1,4 @@
+Application = Router.new do
+  get '/test', ->(env) { [200, {}, ['get test']] }
+  post '/test', ->(env) { [200, {}, ['post test']] }
+end

hw2/config.ru

@@ -0,0 +1,3 @@
+require './main'
+
+run Application

hw2/lib/router.rb

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+class Router
+  def call(env)
+    find_route(env).call(env)
+  end
+
+private
+
+  def initialize(&block)
+    @routes = []
+    instance_exec(&block)
+  end
+
+  def find_route(env)
+    @routes.each do |route|
+      if env['REQUEST_METHOD'] == route[:method] && env['REQUEST_PATH'] =~ route[:regexp]
+        return route[:app]
+      end
+    end
+
+    ->(_env) { [404, {}, ['page not found']] }
+  end
+
+  def get(path, rack_app)
+    match('GET', path, rack_app)
+  end
+
+  def post(path, rack_app)
+    match('POST', path, rack_app)
+  end
+
+  def match(http_method, path, rack_app)
+    @routes <<  { 
+      method: http_method, 
+      pattern: path, 
+      app: rack_app,
+      regexp: path_to_regexp(path)
+    }
+  end
+
+private
+
+  def path_to_regexp(path)
+    Regexp.new('\A' + path.gsub(/:[\w-]+/, '[\w-]+') + '\Z')
+  end
+end

hw2/main.rb

@@ -0,0 +1,2 @@
+require './lib/router'
+require './app/app'