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Monitor available entropy #3524

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merged 5 commits into from
Jan 5, 2018
Merged

Monitor available entropy #3524

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7ac7719
initial commit to configure monitoring of entropy
Nov 26, 2017
d73201e
Update Kernel_README.md
Nov 29, 2017
566c506
Removed unecessary comments
Nov 29, 2017
f708249
Renaming field for entropy available
Dec 4, 2017
793cbc2
updated the kernel_test.go file to include the entropy stat file duri…
Jan 4, 2018
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updated the kernel_test.go file to include the entropy stat file duri… 
…ng testing
  • Loading branch information
Gerardo Corea committed Jan 4, 2018
commit 793cbc217bbb5e4aff5bb95bc33fe236057e635e
26 changes: 23 additions & 3 deletions plugins/inputs/system/kernel_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,13 @@ import (

func TestFullProcFile(t *testing.T) {
tmpfile := makeFakeStatFile([]byte(statFile_Full))
tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Full))
defer os.Remove(tmpfile)
defer os.Remove(tmpfile2)

k := Kernel{
statFile: tmpfile,
statFile: tmpfile,
entropyStatFile: tmpfile2,
}

acc := testutil.Accumulator{}
Expand All @@ -31,16 +34,20 @@ func TestFullProcFile(t *testing.T) {
"disk_pages_out": int64(1808),
"interrupts": int64(1472736),
"processes_forked": int64(10673),
"entropy_avail": int64(1024),
}
acc.AssertContainsFields(t, "kernel", fields)
}

func TestPartialProcFile(t *testing.T) {
tmpfile := makeFakeStatFile([]byte(statFile_Partial))
tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Partial))
defer os.Remove(tmpfile)
defer os.Remove(tmpfile2)

k := Kernel{
statFile: tmpfile,
statFile: tmpfile,
entropyStatFile: tmpfile2,
}

acc := testutil.Accumulator{}
Expand All @@ -53,16 +60,20 @@ func TestPartialProcFile(t *testing.T) {
"disk_pages_in": int64(5741),
"disk_pages_out": int64(1808),
"interrupts": int64(1472736),
"entropy_avail": int64(1024),
}
acc.AssertContainsFields(t, "kernel", fields)
}

func TestInvalidProcFile1(t *testing.T) {
tmpfile := makeFakeStatFile([]byte(statFile_Invalid))
tmpfile2 := makeFakeStatFile([]byte(entropyStatFile_Invalid))
defer os.Remove(tmpfile)
defer os.Remove(tmpfile2)

k := Kernel{
statFile: tmpfile,
statFile: tmpfile,
entropyStatFile: tmpfile2,
}

acc := testutil.Accumulator{}
Expand Down Expand Up @@ -108,6 +119,7 @@ procs_blocked 0
softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
page 5741 1808
swap 1 0
entropy_avail 1024
`

const statFile_Partial = `cpu 6796 252 5655 10444977 175 0 101 0 0 0
Expand All @@ -133,6 +145,7 @@ procs_blocked 0
softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
page 5741 1808
swap 1 0
entropy_avail 1024
`

// missing second page measurement
Expand All @@ -145,8 +158,15 @@ procs_running 2
page 5741
procs_blocked 0
softirq 1031662 0 649485 20946 111071 11620 0 1 0 994 237545
entropy_avail 1024 2048
`

const entropyStatFile_Full = `1024`

const entropyStatFile_Partial = `1024`

const entropyStatFile_Invalid = ``

func makeFakeStatFile(content []byte) string {
tmpfile, err := ioutil.TempFile("", "kerneltest")
if err != nil {
Expand Down