feat: exclude long-running test from CI (#19)

Author: Copilot

README.md

@@ -180,10 +180,12 @@ Then visit http://localhost:8080/metrics to see the exported metrics.
 
 A long-running test simulates RBAC, ABAC, and ReBAC authorization patterns for testing with Prometheus and Grafana.
 
+**Note**: This test is excluded from normal CI runs to avoid timeouts. It must be run manually with the `longrunning` build tag.
+
 ### Usage
 
 ```bash
-go test -v -run TestLongRunning -timeout 0
+go test -v -tags longrunning -run TestLongRunning -timeout 0
 ```
 
 The test generates ~50-150 requests/second and exposes metrics on `http://localhost:8080/metrics`. Press Ctrl+C to stop.

go.sum

@@ -7,6 +7,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=

longrunning_test.go

@@ -1,3 +1,6 @@
+//go:build longrunning
+// +build longrunning
+
 // Copyright 2026 The casbin Authors. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -29,8 +32,8 @@ import (
 // This test is designed to run continuously for testing Prometheus and Grafana integration.
 // It generates realistic traffic patterns based on classic RBAC, ABAC, and ReBAC scenarios.
 //
-// To run this test:
-//   go test -v -run TestLongRunning -timeout 0
+// To run this test manually:
+//   go test -v -tags longrunning -run TestLongRunning -timeout 0
 //
 // The test will:
 // - Start a Prometheus metrics endpoint on http://localhost:8080/metrics
@@ -40,10 +43,6 @@ import (
 //
 // Press Ctrl+C to stop the test.
 func TestLongRunning(t *testing.T) {
-	// Skip in normal test runs
-	if testing.Short() {
-		t.Skip("Skipping long-running test in short mode")
-	}
 
 	// Create a custom registry for this test
 	registry := prometheus.NewRegistry()