Refactor ejabberd API integration

spec/services/ejabberd_manager/get_avatar_spec.rb

@@ -0,0 +1,37 @@
+require 'rails_helper'
+require 'webmock/rspec'
+
+RSpec.describe EjabberdManager::GetAvatar, type: :model do
+  let(:user)  { create :user, cn: "willherschel", ou: "kosmos.org" }
+  let(:img_base64) { File.read("#{Rails.root}/spec/fixtures/files/avatar-base64-png.txt").chomp }
+
+  context "when no avatar is set yet" do
+    before do
+      stub_request(:post, "http://xmpp.example.com/api/get_vcard2")
+        .with { |req| req.body == '{"user":"willherschel","host":"kosmos.org","name":"PHOTO","subname":"BINVAL"}' }
+        .to_return(status: 400, body: "", headers: {})
+    end
+
+    it "returns nil" do
+      res = described_class.call(user: user)
+      expect(res).to be_nil
+    end
+  end
+
+  context "when avatar exists" do
+    before do
+      stub_request(:post, "http://xmpp.example.com/api/get_vcard2")
+        .with { |req| req.body == '{"user":"willherschel","host":"kosmos.org","name":"PHOTO","subname":"BINVAL"}' }
+        .and_return(status: 200, body: { content: img_base64 }.to_json, headers: {})
+      stub_request(:post, "http://xmpp.example.com/api/get_vcard2")
+        .with { |req| req.body == '{"user":"willherschel","host":"kosmos.org","name":"PHOTO","subname":"TYPE"}' }
+        .and_return(status: 200, body: { content: "image/png" }.to_json, headers: {})
+    end
+
+    it "fetches the avatar and content type" do
+      res = described_class.call(user: user)
+      expect(res[:img_base64]).to eq(img_base64)
+      expect(res[:content_type]).to eq("image/png")
+    end
+  end
+end