/*
 * Copyright (c) 2023 OceanBase
 * OCP Express is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

package nodeexporter

import (
	"context"
	"encoding/json"
	"os"
	"testing"
)

func TestNodeExporter_Collect(t *testing.T) {
	lastIndex := len(os.Args) - 1
	copy(os.Args[lastIndex:], os.Args)
	os.Args = os.Args[lastIndex:]

	config := `
{
    "collectors": [ "cpu", "diskstats", "loadavg", "meminfo", "filesystem", "netdev" ],
	"metricFamilies": ["node_cpu_seconds_total", "node_filesystem_avail_bytes",
		"node_filesystem_size_bytes",
		"node_filesystem_readonly",
		"node_disk_reads_completed_total",
		"node_disk_read_bytes_total",
		"node_disk_read_time_seconds_total",
		"node_disk_writes_completed_total",
		"node_disk_written_bytes_total",
		"node_disk_write_time_seconds_total",
		"node_load1",
		"node_load15",
		"node_load5",
		"node_memory_Buffers_bytes",
		"node_memory_MemFree_bytes",
		"node_memory_Cached_bytes",
		"node_memory_MemTotal_bytes",
		"node_network_receive_bytes_total",
		"node_network_transmit_bytes_total",
		"node_ntp_offset_seconds"
	]
}
`
	n := &NodeExporter{}
	sourceConfig := make(map[string]interface{})
	err := json.Unmarshal([]byte(config), &sourceConfig)
	if err != nil {
		t.Errorf("json Unmarshal err %s", err.Error())
	}
	err = n.Init(context.Background(), sourceConfig)
	if err != nil {
		t.Errorf("node exporter init err %s", err.Error())
	}

	_, err = n.CollectMsgs(context.Background())
	if err != nil {
		t.Errorf("Collect() error = %v", err)
		return
	}
}