185 lines
6.0 KiB
Go
185 lines
6.0 KiB
Go
// +build linux
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package kernel
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import (
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"io/ioutil"
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"os"
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"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
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)
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func TestFullProcFile(t *testing.T) {
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tmpfile := makeFakeStatFile([]byte(statFile_Full))
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tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Full))
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defer os.Remove(tmpfile)
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defer os.Remove(tmpfile2)
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k := Kernel{
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statFile: tmpfile,
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entropyStatFile: tmpfile2,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.NoError(t, err)
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fields := map[string]interface{}{
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"boot_time": int64(1457505775),
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"context_switches": int64(2626618),
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"disk_pages_in": int64(5741),
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"disk_pages_out": int64(1808),
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"interrupts": int64(1472736),
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"processes_forked": int64(10673),
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"entropy_avail": int64(1024),
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}
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acc.AssertContainsFields(t, "kernel", fields)
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}
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func TestPartialProcFile(t *testing.T) {
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tmpfile := makeFakeStatFile([]byte(statFile_Partial))
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tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Partial))
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defer os.Remove(tmpfile)
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defer os.Remove(tmpfile2)
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k := Kernel{
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statFile: tmpfile,
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entropyStatFile: tmpfile2,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.NoError(t, err)
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fields := map[string]interface{}{
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"boot_time": int64(1457505775),
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"context_switches": int64(2626618),
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"disk_pages_in": int64(5741),
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"disk_pages_out": int64(1808),
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"interrupts": int64(1472736),
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"entropy_avail": int64(1024),
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}
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acc.AssertContainsFields(t, "kernel", fields)
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}
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func TestInvalidProcFile1(t *testing.T) {
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tmpfile := makeFakeStatFile([]byte(statFile_Invalid))
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tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Invalid))
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defer os.Remove(tmpfile)
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defer os.Remove(tmpfile2)
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k := Kernel{
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statFile: tmpfile,
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entropyStatFile: tmpfile2,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.Error(t, err)
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}
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func TestInvalidProcFile2(t *testing.T) {
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tmpfile := makeFakeStatFile([]byte(statFile_Invalid2))
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defer os.Remove(tmpfile)
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k := Kernel{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.Error(t, err)
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}
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func TestNoProcFile(t *testing.T) {
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tmpfile := makeFakeStatFile([]byte(statFile_Invalid2))
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os.Remove(tmpfile)
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k := Kernel{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.Error(t, err)
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assert.Contains(t, err.Error(), "does not exist")
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}
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const statFile_Full = `cpu 6796 252 5655 10444977 175 0 101 0 0 0
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cpu0 6796 252 5655 10444977 175 0 101 0 0 0
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intr 1472736 57 10 0 0 0 0 0 0 0 0 0 0 156 0 0 0 0 0 0 111551 42541 12356 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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ctxt 2626618
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btime 1457505775
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processes 10673
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procs_running 2
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procs_blocked 0
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softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
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page 5741 1808
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swap 1 0
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entropy_avail 1024
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`
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const statFile_Partial = `cpu 6796 252 5655 10444977 175 0 101 0 0 0
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cpu0 6796 252 5655 10444977 175 0 101 0 0 0
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intr 1472736 57 10 0 0 0 0 0 0 0 0 0 0 156 0 0 0 0 0 0 111551 42541 12356 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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ctxt 2626618
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btime 1457505775
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procs_running 2
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procs_blocked 0
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softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
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page 5741 1808
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`
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// missing btime measurement
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const statFile_Invalid = `cpu 6796 252 5655 10444977 175 0 101 0 0 0
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cpu0 6796 252 5655 10444977 175 0 101 0 0 0
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intr 1472736 57 10 0 0 0 0 0 0 0 0 0 0 156 0 0 0 0 0 0 111551 42541 12356 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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ctxt 2626618
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btime
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processes 10673
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procs_running 2
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procs_blocked 0
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softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
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page 5741 1808
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swap 1 0
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entropy_avail 1024
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`
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// missing second page measurement
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const statFile_Invalid2 = `cpu 6796 252 5655 10444977 175 0 101 0 0 0
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cpu0 6796 252 5655 10444977 175 0 101 0 0 0
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intr 1472736 57 10 0 0 0 0 0 0 0 0 0 0 156 0 0 0 0 0 0 111551 42541 12356 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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ctxt 2626618
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processes 10673
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procs_running 2
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page 5741
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procs_blocked 0
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softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
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entropy_avail 1024 2048
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`
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const entropyStatFile_Full = `1024`
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const entropyStatFile_Partial = `1024`
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const entropyStatFile_Invalid = ``
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func makeFakeStatFile(content []byte) string {
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tmpfile, err := ioutil.TempFile("", "kernel_test")
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if err != nil {
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panic(err)
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}
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if _, err := tmpfile.Write(content); err != nil {
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panic(err)
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}
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if err := tmpfile.Close(); err != nil {
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panic(err)
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}
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return tmpfile.Name()
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}
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