feat(registry): random_hex_id_go_core + spa_handler_go_infra

Dos primitivas reutilizables para apps web del registry: - random_hex_id_go_core: IDs hex aleatorios (apps con SQLite + IDs string) - spa_handler_go_infra: http.Handler que sirve embed.FS con fallback a index.html (patron SPA para React Router/dnd-kit) Ambas creadas via fn-constructor durante apps/kanban (issue 0053). Tests pasan, fn index OK. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 15:54:01 +02:00
parent 2be91b0c4d
commit 7849e1cc8e
6 changed files with 310 additions and 0 deletions
@@ -0,0 +1,77 @@
+package infra
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"testing/fstest"
+)
+
+func TestSPAHandler(t *testing.T) {
+	mapFS := fstest.MapFS{
+		"index.html": {
+			Data: []byte(`<!doctype html><html><body>SPA</body></html>`),
+		},
+		"assets/app.js": {
+			Data: []byte(`console.log("app")`),
+		},
+	}
+
+	handler := SPAHandler(mapFS, "index.html")
+
+	t.Run("sirve archivo estatico existente con status 200", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodGet, "/assets/app.js", nil)
+		rec := httptest.NewRecorder()
+		handler.ServeHTTP(rec, req)
+
+		if rec.Code != http.StatusOK {
+			t.Errorf("got status %d, want %d", rec.Code, http.StatusOK)
+		}
+		body := rec.Body.String()
+		if body != `console.log("app")` {
+			t.Errorf("unexpected body: %q", body)
+		}
+	})
+
+	t.Run("ruta inexistente hace fallback a index.html con Content-Type text/html", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodGet, "/some/route", nil)
+		rec := httptest.NewRecorder()
+		handler.ServeHTTP(rec, req)
+
+		if rec.Code != http.StatusOK {
+			t.Errorf("got status %d, want %d", rec.Code, http.StatusOK)
+		}
+		ct := rec.Header().Get("Content-Type")
+		if ct != "text/html; charset=utf-8" {
+			t.Errorf("got Content-Type %q, want %q", ct, "text/html; charset=utf-8")
+		}
+		body := rec.Body.String()
+		if body == "" {
+			t.Error("expected non-empty body (index.html)")
+		}
+	})
+
+	t.Run("raiz retorna index.html", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodGet, "/", nil)
+		rec := httptest.NewRecorder()
+		handler.ServeHTTP(rec, req)
+
+		if rec.Code != http.StatusOK {
+			t.Errorf("got status %d, want %d", rec.Code, http.StatusOK)
+		}
+		ct := rec.Header().Get("Content-Type")
+		if ct != "text/html; charset=utf-8" {
+			t.Errorf("got Content-Type %q, want %q", ct, "text/html; charset=utf-8")
+		}
+	})
+
+	t.Run("path con .. retorna 400", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodGet, "/foo/../bar", nil)
+		rec := httptest.NewRecorder()
+		handler.ServeHTTP(rec, req)
+
+		if rec.Code != http.StatusBadRequest {
+			t.Errorf("got status %d, want %d", rec.Code, http.StatusBadRequest)
+		}
+	})
+}