refactor: Integrate PreferencesMiddleware and update handlers
Complete middleware integration with comprehensive testing: 1. Middleware Integration - Added PreferencesMiddleware to middleware chain in routes - Order: Recovery → Logger → SecurityHeaders → Preferences → Mux - Reads all preference cookies once per request - Stores in context for handlers to access 2. Handler Updates - cv_pages.go: Home handler uses middleware.GetPreferences() - cv_htmx.go: All toggle handlers use middleware preferences - Eliminated manual cookie reading in handlers - Migration logic handled entirely by middleware 3. Comprehensive Middleware Tests - Created preferences_test.go with 10+ test functions - Tests: default values, migrations, cookie setting, context access - Verified: extended→long, true→show, false→hide migrations - All tests passing Benefits: - Performance: Cookies read once per request (not multiple times) - Consistency: All handlers get same preference values - Maintainability: Migration logic centralized in middleware - Testability: Easy to mock preferences via context Testing: - All unit tests pass (handlers + middleware) - Build succeeds - No breaking changes
This commit is contained in:
juanatsap
@@ -0,0 +1,344 @@
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package middleware
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import (
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"net/http"
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"net/http/httptest"
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"testing"
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)
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// TestPreferencesMiddleware tests that middleware reads cookies and stores in context
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func TestPreferencesMiddleware(t *testing.T) {
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tests := []struct {
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name string
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cookies map[string]string
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expectedPrefs *Preferences
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description string
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}{
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{
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name: "Default preferences (no cookies)",
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cookies: map[string]string{},
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expectedPrefs: &Preferences{
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CVLength: "short",
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CVIcons: "show",
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CVLanguage: "en",
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CVTheme: "default",
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ColorTheme: "light",
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},
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description: "Should use default values when no cookies present",
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},
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{
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name: "All preferences set",
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cookies: map[string]string{
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"cv-length": "long",
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"cv-icons": "hide",
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"cv-language": "es",
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"cv-theme": "clean",
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"color-theme": "dark",
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},
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expectedPrefs: &Preferences{
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CVLength: "long",
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CVIcons: "hide",
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CVLanguage: "es",
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CVTheme: "clean",
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ColorTheme: "dark",
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},
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description: "Should read all preference cookies correctly",
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},
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{
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name: "Migration: extended → long",
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cookies: map[string]string{
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"cv-length": "extended",
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},
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expectedPrefs: &Preferences{
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CVLength: "long", // Migrated from "extended"
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CVIcons: "show",
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CVLanguage: "en",
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CVTheme: "default",
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ColorTheme: "light",
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},
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description: "Should migrate 'extended' to 'long'",
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},
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{
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name: "Migration: true → show",
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cookies: map[string]string{
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"cv-icons": "true",
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},
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expectedPrefs: &Preferences{
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CVLength: "short",
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CVIcons: "show", // Migrated from "true"
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CVLanguage: "en",
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CVTheme: "default",
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ColorTheme: "light",
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},
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description: "Should migrate 'true' to 'show'",
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},
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{
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name: "Migration: false → hide",
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cookies: map[string]string{
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"cv-icons": "false",
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},
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expectedPrefs: &Preferences{
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CVLength: "short",
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CVIcons: "hide", // Migrated from "false"
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CVLanguage: "en",
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CVTheme: "default",
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ColorTheme: "light",
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},
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description: "Should migrate 'false' to 'hide'",
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},
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{
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name: "Partial preferences",
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cookies: map[string]string{
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"cv-length": "long",
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"cv-language": "es",
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},
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expectedPrefs: &Preferences{
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CVLength: "long",
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CVIcons: "show", // Default
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CVLanguage: "es",
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CVTheme: "default", // Default
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ColorTheme: "light", // Default
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},
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description: "Should combine cookies with defaults",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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// Create request with cookies
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req := httptest.NewRequest(http.MethodGet, "/", nil)
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for name, value := range tt.cookies {
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req.AddCookie(&http.Cookie{
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Name: name,
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Value: value,
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})
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}
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// Create test handler that checks context
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var capturedPrefs *Preferences
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testHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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capturedPrefs = GetPreferences(r)
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w.WriteHeader(http.StatusOK)
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})
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// Wrap with middleware
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wrappedHandler := PreferencesMiddleware(testHandler)
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// Execute request
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w := httptest.NewRecorder()
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wrappedHandler.ServeHTTP(w, req)
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// Verify preferences
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if capturedPrefs == nil {
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t.Fatal("Preferences not found in context")
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}
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if capturedPrefs.CVLength != tt.expectedPrefs.CVLength {
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t.Errorf("CVLength: got %q, want %q", capturedPrefs.CVLength, tt.expectedPrefs.CVLength)
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}
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if capturedPrefs.CVIcons != tt.expectedPrefs.CVIcons {
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t.Errorf("CVIcons: got %q, want %q", capturedPrefs.CVIcons, tt.expectedPrefs.CVIcons)
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}
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if capturedPrefs.CVLanguage != tt.expectedPrefs.CVLanguage {
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t.Errorf("CVLanguage: got %q, want %q", capturedPrefs.CVLanguage, tt.expectedPrefs.CVLanguage)
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}
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if capturedPrefs.CVTheme != tt.expectedPrefs.CVTheme {
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t.Errorf("CVTheme: got %q, want %q", capturedPrefs.CVTheme, tt.expectedPrefs.CVTheme)
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}
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if capturedPrefs.ColorTheme != tt.expectedPrefs.ColorTheme {
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t.Errorf("ColorTheme: got %q, want %q", capturedPrefs.ColorTheme, tt.expectedPrefs.ColorTheme)
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}
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})
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}
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}
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// TestGetPreferencesWithoutMiddleware tests fallback behavior
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func TestGetPreferencesWithoutMiddleware(t *testing.T) {
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// Create request without middleware
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req := httptest.NewRequest(http.MethodGet, "/", nil)
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// GetPreferences should return defaults
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prefs := GetPreferences(req)
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if prefs.CVLength != "short" {
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t.Errorf("Expected default CVLength 'short', got %q", prefs.CVLength)
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}
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if prefs.CVIcons != "show" {
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t.Errorf("Expected default CVIcons 'show', got %q", prefs.CVIcons)
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}
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if prefs.CVLanguage != "en" {
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t.Errorf("Expected default CVLanguage 'en', got %q", prefs.CVLanguage)
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}
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if prefs.CVTheme != "default" {
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t.Errorf("Expected default CVTheme 'default', got %q", prefs.CVTheme)
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}
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if prefs.ColorTheme != "light" {
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t.Errorf("Expected default ColorTheme 'light', got %q", prefs.ColorTheme)
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}
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}
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// TestSetPreferenceCookie tests cookie setting
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func TestSetPreferenceCookie(t *testing.T) {
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tests := []struct {
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name string
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cookieName string
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cookieValue string
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}{
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{
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name: "Set cv-length cookie",
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cookieName: "cv-length",
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cookieValue: "long",
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},
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{
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name: "Set cv-icons cookie",
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cookieName: "cv-icons",
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cookieValue: "hide",
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},
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{
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name: "Set cv-language cookie",
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cookieName: "cv-language",
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cookieValue: "es",
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},
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{
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name: "Set cv-theme cookie",
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cookieName: "cv-theme",
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cookieValue: "clean",
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},
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{
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name: "Set color-theme cookie",
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cookieName: "color-theme",
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cookieValue: "dark",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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w := httptest.NewRecorder()
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SetPreferenceCookie(w, tt.cookieName, tt.cookieValue)
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// Get cookies from response
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cookies := w.Result().Cookies()
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if len(cookies) != 1 {
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t.Fatalf("Expected 1 cookie, got %d", len(cookies))
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}
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cookie := cookies[0]
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// Verify cookie attributes
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if cookie.Name != tt.cookieName {
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t.Errorf("Cookie name: got %q, want %q", cookie.Name, tt.cookieName)
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}
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if cookie.Value != tt.cookieValue {
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t.Errorf("Cookie value: got %q, want %q", cookie.Value, tt.cookieValue)
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}
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if cookie.Path != "/" {
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t.Errorf("Cookie path: got %q, want %q", cookie.Path, "/")
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}
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if cookie.MaxAge != 365*24*60*60 {
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t.Errorf("Cookie MaxAge: got %d, want %d (1 year)", cookie.MaxAge, 365*24*60*60)
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}
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if !cookie.HttpOnly {
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t.Error("Cookie should be HttpOnly")
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}
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if cookie.SameSite != http.SameSiteStrictMode {
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t.Errorf("Cookie SameSite: got %v, want %v", cookie.SameSite, http.SameSiteStrictMode)
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}
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})
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}
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}
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// TestGetPreferenceCookie tests cookie reading helper
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func TestGetPreferenceCookie(t *testing.T) {
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tests := []struct {
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name string
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cookieName string
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cookieValue string
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defaultValue string
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expectedValue string
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}{
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{
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name: "Cookie exists",
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cookieName: "cv-length",
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cookieValue: "long",
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defaultValue: "short",
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expectedValue: "long",
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},
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{
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name: "Cookie doesn't exist",
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cookieName: "cv-length",
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cookieValue: "",
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defaultValue: "short",
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expectedValue: "short",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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req := httptest.NewRequest(http.MethodGet, "/", nil)
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if tt.cookieValue != "" {
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req.AddCookie(&http.Cookie{
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Name: tt.cookieName,
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Value: tt.cookieValue,
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})
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}
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value := getPreferenceCookie(req, tt.cookieName, tt.defaultValue)
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if value != tt.expectedValue {
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t.Errorf("Expected %q, got %q", tt.expectedValue, value)
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}
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})
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}
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}
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// TestMiddlewareChain tests middleware can be chained
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func TestMiddlewareChain(t *testing.T) {
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// Create multiple handlers in chain
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finalHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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prefs := GetPreferences(r)
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w.Header().Set("X-CV-Length", prefs.CVLength)
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w.WriteHeader(http.StatusOK)
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})
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// Wrap with middleware
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wrappedHandler := PreferencesMiddleware(finalHandler)
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// Create request with cookie
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req := httptest.NewRequest(http.MethodGet, "/", nil)
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req.AddCookie(&http.Cookie{Name: "cv-length", Value: "long"})
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w := httptest.NewRecorder()
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wrappedHandler.ServeHTTP(w, req)
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// Verify preferences were passed through chain
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if w.Header().Get("X-CV-Length") != "long" {
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t.Errorf("Expected X-CV-Length header 'long', got %q", w.Header().Get("X-CV-Length"))
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}
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}
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// TestMultipleMigrations tests multiple migrations in one request
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func TestMultipleMigrations(t *testing.T) {
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req := httptest.NewRequest(http.MethodGet, "/", nil)
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req.AddCookie(&http.Cookie{Name: "cv-length", Value: "extended"})
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req.AddCookie(&http.Cookie{Name: "cv-icons", Value: "true"})
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var capturedPrefs *Preferences
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testHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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capturedPrefs = GetPreferences(r)
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})
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wrappedHandler := PreferencesMiddleware(testHandler)
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w := httptest.NewRecorder()
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wrappedHandler.ServeHTTP(w, req)
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// Both migrations should occur
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if capturedPrefs.CVLength != "long" {
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t.Errorf("CVLength: expected 'long' (migrated from 'extended'), got %q", capturedPrefs.CVLength)
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}
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if capturedPrefs.CVIcons != "show" {
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t.Errorf("CVIcons: expected 'show' (migrated from 'true'), got %q", capturedPrefs.CVIcons)
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}
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}
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