add experimental handlers examples

Former-commit-id: 8d8a0d15afce2554dc5926f6b9bd9c42cb95dad0

_examples/experimental-handlers/casbin/middleware/main_test.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/kataras/iris/httptest"
+)
+
+func TestCasbinMiddleware(t *testing.T) {
+	app := newApp()
+	e := httptest.New(t, app, httptest.Debug(false))
+
+	type ttcasbin struct {
+		username string
+		path     string
+		method   string
+		status   int
+	}
+
+	tt := []ttcasbin{
+		{"alice", "/dataset1/resource1", "GET", 200},
+		{"alice", "/dataset1/resource1", "POST", 200},
+		{"alice", "/dataset1/resource2", "GET", 200},
+		{"alice", "/dataset1/resource2", "POST", 404},
+
+		{"bob", "/dataset2/resource1", "GET", 200},
+		{"bob", "/dataset2/resource1", "POST", 200},
+		{"bob", "/dataset2/resource1", "DELETE", 200},
+		{"bob", "/dataset2/resource2", "GET", 200},
+		{"bob", "/dataset2/resource2", "POST", 404},
+		{"bob", "/dataset2/resource2", "DELETE", 404},
+
+		{"bob", "/dataset2/folder1/item1", "GET", 404},
+		{"bob", "/dataset2/folder1/item1", "POST", 200},
+		{"bob", "/dataset2/folder1/item1", "DELETE", 404},
+		{"bob", "/dataset2/folder1/item2", "GET", 404},
+		{"bob", "/dataset2/folder1/item2", "POST", 200},
+		{"bob", "/dataset2/folder1/item2", "DELETE", 404},
+	}
+
+	for _, tt := range tt {
+		check(e, tt.method, tt.path, tt.username, tt.status)
+	}
+}
+
+func check(e *httptest.Expect, method, path, username string, status int) {
+	e.Request(method, path).WithBasicAuth(username, "password").Expect().Status(status)
+}