Feature: API for updating account settings (#645)

* Feature: API for updating account settings

- API to update account locale
- API to update account name
- API to show account info

spec/controllers/api/v1/accounts/accounts_controller_spec.rb

@@ -75,4 +75,75 @@ RSpec.describe 'Accounts API', type: :request do
       end
     end
   end
+
+  describe 'GET /api/v1/accounts/{account.id}' do
+    let(:account) { create(:account) }
+    let(:agent) { create(:user, account: account, role: :agent) }
+    let(:admin) { create(:user, account: account, role: :administrator) }
+
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        get "/api/v1/accounts/#{account.id}"
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an unauthorized user' do
+      it 'returns unauthorized' do
+        get "/api/v1/accounts/#{account.id}",
+            headers: agent.create_new_auth_token
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      it 'shows an account' do
+        get "/api/v1/accounts/#{account.id}",
+            headers: admin.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(response.body).to include(account.name)
+        expect(response.body).to include(account.locale)
+      end
+    end
+  end
+
+  describe 'PUT /api/v1/accounts/{account.id}' do
+    let(:account) { create(:account) }
+    let(:agent) { create(:user, account: account, role: :agent) }
+    let(:admin) { create(:user, account: account, role: :administrator) }
+
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        put "/api/v1/accounts/#{account.id}"
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an unauthorized user' do
+      it 'returns unauthorized' do
+        put "/api/v1/accounts/#{account.id}",
+            headers: agent.create_new_auth_token
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      params = { name: 'New Name', locale: 'ara' }
+
+      it 'modifies an account' do
+        put "/api/v1/accounts/#{account.id}",
+            params: params,
+            headers: admin.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(account.reload.name).to eq(params[:name])
+        expect(account.reload.locale).to eq(params[:locale])
+      end
+    end
+  end
 end