test(server_test.go): add test for RegisterHeaders

internal/server/config_test.go

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package server
+package server_test
 
 import (
 	"encoding/json"
@@ -25,6 +25,7 @@ import (
 
 	"github.com/orca-group/spirit/internal/config"
 	"github.com/orca-group/spirit/internal/database"
+	"github.com/orca-group/spirit/internal/server"
 	"github.com/stretchr/testify/require"
 )
 
@@ -49,7 +50,7 @@ var mockConfig = config.Cfg{
 // then executes the request by calling ServeHTTP in the router
 // after which the handler writes the response to the response recorder
 // which we can then inspect.
-func executeRequest(req *http.Request, s *Server) *httptest.ResponseRecorder {
+func executeRequest(req *http.Request, s *server.Server) *httptest.ResponseRecorder {
 	rr := httptest.NewRecorder()
 	s.Router.ServeHTTP(rr, req)
 
@@ -67,7 +68,7 @@ func checkResponseCode(t *testing.T, expected, actual int) {
 func TestConfig(t *testing.T) {
 	mockDB := database.NewMockDatabase(t)
 
-	s := NewServer(&mockConfig, mockDB)
+	s := server.NewServer(&mockConfig, mockDB)
 	s.MountHandlers()
 
 	req, _ := http.NewRequest("GET", "/config", nil)

internal/server/create_test.go

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package server
+package server_test
 
 import "testing"
 

internal/server/fetch_test.go

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package server
+package server_test
 
 import (
 	"encoding/json"
@@ -24,6 +24,7 @@ import (
 	"time"
 
 	"github.com/orca-group/spirit/internal/database"
+	"github.com/orca-group/spirit/internal/server"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
 )
@@ -36,7 +37,7 @@ type DocumentResponse struct {
 func TestFetch(t *testing.T) {
 	mockDB := database.NewMockDatabase(t)
 
-	s := NewServer(&mockConfig, mockDB)
+	s := server.NewServer(&mockConfig, mockDB)
 	s.MountHandlers()
 
 	mockDB.EXPECT().GetDocument(mock.Anything, "12345678").Return(database.Document{

internal/server/server_test.go

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2020-2023 Luke Whritenour
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ *     http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package server_test
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/orca-group/spirit/internal/database"
+	"github.com/orca-group/spirit/internal/server"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRegisterHeaders(t *testing.T) {
+	s := server.NewServer(&mockConfig, &database.MockDatabase{})
+
+	s.RegisterHeaders()
+	s.Router.Get("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/plain")
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte("."))
+	})
+
+	req, _ := http.NewRequest(http.MethodGet, "/", nil)
+	res := executeRequest(req, s)
+
+	// Ensure 200
+	checkResponseCode(t, http.StatusOK, res.Result().StatusCode)
+
+	require.Equal(t, "noopen", res.Result().Header.Get("X-Download-Options"))
+	require.Equal(t, "off", res.Result().Header.Get("X-DNS-Prefetch-Control"))
+	require.Equal(t, "SAMEORIGIN", res.Result().Header.Get("X-Frame-Options"))
+	require.Equal(t, "1; mode=block", res.Result().Header.Get("X-XSS-Protection"))
+	require.Equal(t, "nosniff", res.Result().Header.Get("X-Content-Type-Options"))
+	require.Equal(t, "no-referrer-when-downgrade", res.Result().Header.Get("Referrer-Policy"))
+	require.Equal(t, "max-age=31536000; includeSubDomains; preload", res.Result().Header.Get("Strict-Transport-Security"))
+	require.Equal(t, "default-src 'self'; frame-ancestors 'none'; base-uri 'none'; form-action 'self'; script-src 'self' 'unsafe-inline';", res.Result().Header.Get("Content-Security-Policy"))
+}