Added specs for JwtController

spec/requests/jwt_controller_spec.rb

+require 'spec_helper'
+
+describe JwtController do
+  let(:services) { { 'test' => TestService } }
+  let(:parameters) { { service: 'test' } }
+  let(:ok_status) { { status: 'OK' } }
+
+  before { allow_any_instance_of(JwtController).to receive(:SERVICES).and_return services }
+
+  context 'existing service' do
+    before { expect_any_instance_of(TestService).to receive(:execute).and_return(ok_status) }
+
+    subject! { get '/jwt/auth', parameters }
+
+    it { expect(response.status).to eq(200) }
+  end
+
+  context 'when using authorized request' do
+    context 'using CI token' do
+      let(:project) { create(:empty_project, runners_token: 'token', builds_enabled: builds_enabled) }
+      let(:headers) { { HTTP_AUTHENTICATION: authorize('gitlab-ci-token', project.runners_token) } }
+
+      context 'project with enabled CI' do
+        let(:builds_enabled) { true }
+
+        it do
+          expect(TestService).to receive(:new).with(project, nil, parameters).and_call_original
+
+          get '/jwt/auth', parameters, headers
+        end
+      end
+
+      context 'project with disabled CI' do
+        let(:builds_enabled) { false }
+
+        it do
+          expect(TestService).to receive(:new).with(project, nil, parameters).and_call_original
+
+          get '/jwt/auth', parameters, headers
+        end
+      end
+    end
+
+    context 'using User login' do
+      let(:user) { create(:user) }
+      let(:headers) { { HTTP_AUTHENTICATION: authorize('user', 'password') } }
+
+      before { expect_any_instance_of(Gitlab::Auth).to receive(:find).with('user', 'password').and_return(user) }
+
+      it do
+        expect(TestService).to receive(:new).with(nil, user, parameters).and_call_original
+
+        get '/jwt/auth', parameters, headers
+      end
+    end
+
+    context 'using invalid login' do
+      let(:headers) { { HTTP_AUTHENTICATION: authorize('invalid', 'password') } }
+
+      subject! { get '/jwt/auth', parameters, headers }
+
+      it { expect(response.status).to eq(403) }
+    end
+  end
+
+  context 'unknown service' do
+    subject! { get '/jwt/auth', service: 'unknown' }
+
+    it { expect(response.status).to eq(404) }
+  end
+
+  def authorize(login, password)
+    ActionController::HttpAuthentication::Basic.encode_credentials(login, password)
+  end
+
+  class TestService
+    attr_accessor :project, :current_user, :params
+
+    def initialize(project, user, params = {})
+      @project, @current_user, @params = project, user, params.dup
+    end
+
+    def execute
+      { status: 'OK' }
+    end
+  end
+end