telegraf/plugins/inputs/system/linux_sysctl_fs_test.go

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package system
import (
"io/ioutil"
"os"
"testing"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/require"
)
func TestSysctlFSGather(t *testing.T) {
td, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(td)
require.NoError(t, ioutil.WriteFile(td+"/aio-nr", []byte("100\n"), 0644))
require.NoError(t, ioutil.WriteFile(td+"/aio-max-nr", []byte("101\n"), 0644))
require.NoError(t, ioutil.WriteFile(td+"/super-nr", []byte("102\n"), 0644))
require.NoError(t, ioutil.WriteFile(td+"/super-max", []byte("103\n"), 0644))
require.NoError(t, ioutil.WriteFile(td+"/file-nr", []byte("104\t0\t106\n"), 0644))
require.NoError(t, ioutil.WriteFile(td+"/inode-state", []byte("107\t108\t109\t0\t0\t0\t0\n"), 0644))
sfs := &SysctlFS{
path: td,
}
var acc testutil.Accumulator
require.NoError(t, sfs.Gather(&acc))
acc.AssertContainsFields(t, "linux_sysctl_fs", map[string]interface{}{
"aio-nr": uint64(100),
"aio-max-nr": uint64(101),
"super-nr": uint64(102),
"super-max": uint64(103),
"file-nr": uint64(104),
"file-max": uint64(106),
"inode-nr": uint64(107),
"inode-free-nr": uint64(108),
"inode-preshrink-nr": uint64(109),
})
}