rec := httptest.NewRecorder()
			server.handleStats(rec, req)
			if rec.Code != 200 {
				t.Fatalf("handleStats() => %v; want 200", rec.Code)
			}
		})
	}
}

// initServerWithSize size is kB
func initServerWithSize(t *testing.B, size int) *Server {
	appText := `# TYPE jvm info
# HELP jvm VM version info
jvm_info{runtime="OpenJDK Runtime Environment",vendor="AdoptOpenJDK",version="16.0.1+9"} 1.0