feature: pokeapi integration

lib/pokeapi.rb

@@ -0,0 +1,42 @@
+require 'net/http'
+
+module Pokeapi
+  BASE_URI = "https://pokeapi.co/api/v2"
+
+  class Resource
+    def self.request resource
+      uri = URI("#{BASE_URI}/#{resource}")
+      response = Net::HTTP.get_response(uri)
+      JSON.parse(response.body)
+    end
+
+    def self.get params = nil
+      throw "You can't call Resource#get directly" if name.demodulize == 'Resource'
+
+      request "#{name.demodulize.downcase}/#{params}"
+    end
+
+    def self.get_all
+      next_url_params = nil
+      results = []
+
+      loop do
+        data = get next_url_params
+        results += data["results"]
+
+        next_url_params = if data["next"] then
+                            "?#{data["next"].split("?").try(:last)}"
+                          else
+                            nil
+                          end
+
+        break unless next_url_params
+      end
+
+      results
+    end
+  end
+
+  class Pokemon < Resource
+  end
+end

test/lib/pokeapi_test.rb

@@ -0,0 +1,44 @@
+require "test_helper"
+require 'pokeapi'
+
+class PokeapiApiResourceTest < ActiveSupport::TestCase
+  test "Resource#request" do
+    VCR.use_cassette("pokeapi_resource_request") do
+      response = Pokeapi::Resource.request 'pokemon'
+      assert :success
+      assert response["count"] > 0
+    end
+  end
+
+  test "Resource#get(params) throws an error" do
+    VCR.use_cassette("pokeapi_resource_get") do
+      assert_raises StandardError do
+        response = Pokeapi::Resource.get 'pokemon'
+      end
+    end
+  end
+
+  test "Resource#get_all throws an error" do
+    VCR.use_cassette("pokeapi_resource_get_all") do
+      assert_raises StandardError do
+        response = Pokeapi::Resource.get_all
+      end
+    end
+  end
+end
+
+class PokeapiApiPokemonTest < ActiveSupport::TestCase
+  test "Pokemon#get_all retrieves a list of pokemons from API" do
+    VCR.use_cassette("pokeapi_pokemon_get_all") do
+      response = Pokeapi::Pokemon.get_all
+      assert :success
+    end
+  end
+
+  test "Resource#get_all throws an error" do
+    VCR.use_cassette("pokeapi_resource_get_1") do
+      response = Pokeapi::Pokemon.get '1'
+      assert response["id"] == 1
+    end
+  end
+end

test/test_helper.rb

@@ -1,6 +1,8 @@
 ENV['RAILS_ENV'] ||= 'test'
 require_relative "../config/environment"
 require "rails/test_help"
+require 'webmock/minitest'
+require 'vcr'
 
 class ActiveSupport::TestCase
   # Run tests in parallel with specified workers
@@ -11,3 +13,8 @@ class ActiveSupport::TestCase
 
   # Add more helper methods to be used by all tests here...
 end
+
+VCR.configure do |config|
+  config.cassette_library_dir = "fixtures/vcr_cassettes"
+  config.hook_into :webmock
+end