test(plugins): verify yaegi plugin routes serve HTTP

The interpreted plugin registers Echo routes and serves HTTP responses
correctly. The /plugins/status endpoint returns JSON with plugin info.

pkg/plugins/yaegi/routes_test.go

@@ -0,0 +1,63 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-present Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package yaegi
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"code.vikunja.io/api/pkg/log"
+	"github.com/labstack/echo/v5"
+)
+
+func TestPluginRoutesServeHTTP(t *testing.T) {
+	log.InitLogger()
+	loaded, err := LoadPluginFull(examplePluginDir)
+	if err != nil {
+		t.Fatalf("LoadPluginFull failed: %v", err)
+	}
+
+	if loaded.UnauthRouter == nil {
+		t.Fatal("UnauthRouter is nil — cannot test route registration")
+	}
+
+	// Create a real Echo instance and register the plugin's unauthenticated routes
+	e := echo.New()
+	g := e.Group("/plugins")
+	loaded.UnauthRouter.RegisterUnauthenticatedRoutes(g)
+
+	// Make an HTTP request to the plugin's /status endpoint
+	req := httptest.NewRequest(http.MethodGet, "/plugins/status", nil)
+	rec := httptest.NewRecorder()
+	e.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d, body: %s", rec.Code, rec.Body.String())
+	}
+
+	body := rec.Body.String()
+	if !strings.Contains(body, "example") {
+		t.Errorf("response body should contain plugin name 'example', got: %s", body)
+	}
+	if !strings.Contains(body, "ok") {
+		t.Errorf("response body should contain status 'ok', got: %s", body)
+	}
+
+	t.Logf("HTTP response: %s", body)
+}