Add DiaperPartnerClient specs (#1085)

* Add first diaper partner client spec

* Add spec for ::post

* Add spec for ::put

* Refactor out request stub helper method

spec/services/diaper_partner_client_spec.rb

@@ -0,0 +1,66 @@
+require 'spec_helper'
+require_relative '../support/env_helper'
+
+RSpec.describe DiaperPartnerClient, type: :service do
+  before do
+    stub_env('PARTNER_REGISTER_URL', 'https://partner-register.com')
+    stub_env('PARTNER_KEY', 'partner-key')
+  end
+
+  describe '::post' do
+    it 'performs a POST request' do
+      attributes = { 'id' => 123, 'organization_id' => 456, 'email' => '[email protected]' }
+      expected_body = {
+        partner:
+        {
+          diaper_bank_id: attributes["organization_id"],
+          diaper_partner_id: attributes["id"],
+          email: attributes["email"]
+        }
+      }.to_json
+      stub_partner_request(:post, 'https://partner-register.com/', body: expected_body)
+      result = DiaperPartnerClient.post(attributes)
+      expect(result).to eq 'success'
+    end
+  end
+
+  describe '::get' do
+    it 'performs a GET request' do
+      stub_partner_request(:get, 'https://partner-register.com/123')
+      result = DiaperPartnerClient.get(id: 123)
+      expect(result).to eq 'success'
+    end
+  end
+
+  describe '::put' do
+    it 'performs a PUT request' do
+      attributes = { partner_id: 123, status: 'status' }
+      expected_body = {
+        partner: {
+          diaper_partner_id: attributes[:partner_id],
+          status: attributes[:status]
+        }
+      }.to_json
+      stub_partner_request(:put, 'https://partner-register.com/123', body: expected_body)
+      result = DiaperPartnerClient.put(attributes)
+      expect(result.body).to eq 'success'
+    end
+  end
+
+  private
+
+  def stub_partner_request(method, url, request = {}, response = {})
+    stub_request(method, url)
+      .with({
+        headers: {
+          'Accept' => '*/*',
+          'Accept-Encoding' => 'gzip;q=1.0,deflate;q=0.6,identity;q=0.3',
+          'Content-Type' => 'application/json',
+          'Host' => 'partner-register.com',
+          'User-Agent' => 'Ruby',
+          'X-Api-Key' => 'partner-key'
+        }
+      }.merge(request))
+      .to_return({ status: 200, body: 'success', headers: {} }.merge(response))
+  end
+end