303 lines
10 KiB
Go
303 lines
10 KiB
Go
package system
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import (
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"fmt"
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"reflect"
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"testing"
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"github.com/influxdb/telegraf/testutil"
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"github.com/shirou/gopsutil/cpu"
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"github.com/shirou/gopsutil/disk"
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"github.com/shirou/gopsutil/mem"
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"github.com/shirou/gopsutil/net"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestSystemStats_GenerateStats(t *testing.T) {
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var mps MockPS
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defer mps.AssertExpectations(t)
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var acc testutil.Accumulator
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cts := cpu.CPUTimesStat{
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CPU: "cpu0",
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User: 3.1,
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System: 8.2,
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Idle: 80.1,
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Nice: 1.3,
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Iowait: 0.2,
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Irq: 0.1,
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Softirq: 0.11,
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Steal: 0.0511,
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Guest: 8.1,
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GuestNice: 0.324,
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}
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cts2 := cpu.CPUTimesStat{
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CPU: "cpu0",
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User: 11.4, // increased by 8.3
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System: 10.9, // increased by 2.7
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Idle: 158.8699, // increased by 78.7699 (for total increase of 100)
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Nice: 2.5, // increased by 1.2
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Iowait: 0.7, // increased by 0.5
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Irq: 1.2, // increased by 1.1
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Softirq: 0.31, // increased by 0.2
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Steal: 0.2812, // increased by 0.0001
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Guest: 12.9, // increased by 4.8
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GuestNice: 2.524, // increased by 2.2
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}
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mps.On("CPUTimes").Return([]cpu.CPUTimesStat{cts}, nil)
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du := &disk.DiskUsageStat{
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Path: "/",
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Fstype: "ext4",
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Total: 128,
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Free: 23,
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InodesTotal: 1234,
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InodesFree: 234,
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}
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mps.On("DiskUsage").Return([]*disk.DiskUsageStat{du}, nil)
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diskio := disk.DiskIOCountersStat{
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ReadCount: 888,
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WriteCount: 5341,
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ReadBytes: 100000,
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WriteBytes: 200000,
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ReadTime: 7123,
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WriteTime: 9087,
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Name: "sda1",
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IoTime: 123552,
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SerialNumber: "ab-123-ad",
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}
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mps.On("DiskIO").Return(map[string]disk.DiskIOCountersStat{"sda1": diskio}, nil)
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netio := net.NetIOCountersStat{
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Name: "eth0",
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BytesSent: 1123,
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BytesRecv: 8734422,
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PacketsSent: 781,
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PacketsRecv: 23456,
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Errin: 832,
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Errout: 8,
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Dropin: 7,
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Dropout: 1,
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}
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mps.On("NetIO").Return([]net.NetIOCountersStat{netio}, nil)
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vms := &mem.VirtualMemoryStat{
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Total: 12400,
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Available: 7600,
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Used: 5000,
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Free: 1235,
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// Active: 8134,
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// Inactive: 1124,
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// Buffers: 771,
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// Cached: 4312,
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// Wired: 134,
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// Shared: 2142,
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}
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mps.On("VMStat").Return(vms, nil)
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sms := &mem.SwapMemoryStat{
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Total: 8123,
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Used: 1232,
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Free: 6412,
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UsedPercent: 12.2,
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Sin: 7,
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Sout: 830,
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}
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mps.On("SwapStat").Return(sms, nil)
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cs := NewCPUStats(&mps)
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cputags := map[string]string{
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"cpu": "cpu0",
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}
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preCPUPoints := len(acc.Points)
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err := cs.Gather(&acc)
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require.NoError(t, err)
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numCPUPoints := len(acc.Points) - preCPUPoints
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expectedCPUPoints := 10
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assert.Equal(t, numCPUPoints, expectedCPUPoints)
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// Computed values are checked with delta > 0 becasue of floating point arithmatic
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// imprecision
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assertContainsTaggedFloat(t, acc, "time_user", 3.1, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_system", 8.2, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_idle", 80.1, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_nice", 1.3, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_iowait", 0.2, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_irq", 0.1, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_softirq", 0.11, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_steal", 0.0511, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_guest", 8.1, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_guest_nice", 0.324, 0, cputags)
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mps2 := MockPS{}
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mps2.On("CPUTimes").Return([]cpu.CPUTimesStat{cts2}, nil)
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cs.ps = &mps2
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// Should have added cpu percentages too
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err = cs.Gather(&acc)
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require.NoError(t, err)
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numCPUPoints = len(acc.Points) - (preCPUPoints + numCPUPoints)
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expectedCPUPoints = 20
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assert.Equal(t, numCPUPoints, expectedCPUPoints)
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assertContainsTaggedFloat(t, acc, "time_user", 11.4, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_system", 10.9, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_idle", 158.8699, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_nice", 2.5, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_iowait", 0.7, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_irq", 1.2, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_softirq", 0.31, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_steal", 0.2812, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_guest", 12.9, 0, cputags)
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assertContainsTaggedFloat(t, acc, "time_guest_nice", 2.524, 0, cputags)
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assertContainsTaggedFloat(t, acc, "usage_user", 8.3, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_system", 2.7, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_idle", 78.7699, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_nice", 1.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_iowait", 0.5, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_irq", 1.1, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_softirq", 0.2, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_steal", 0.2301, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_guest", 4.8, 0.0005, cputags)
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assertContainsTaggedFloat(t, acc, "usage_guest_nice", 2.2, 0.0005, cputags)
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err = (&DiskStats{&mps}).Gather(&acc)
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require.NoError(t, err)
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tags := map[string]string{
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"path": "/",
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"fstype": "ext4",
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}
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assert.True(t, acc.CheckTaggedValue("total", uint64(128), tags))
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assert.True(t, acc.CheckTaggedValue("used", uint64(105), tags))
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assert.True(t, acc.CheckTaggedValue("free", uint64(23), tags))
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assert.True(t, acc.CheckTaggedValue("inodes_total", uint64(1234), tags))
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assert.True(t, acc.CheckTaggedValue("inodes_free", uint64(234), tags))
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assert.True(t, acc.CheckTaggedValue("inodes_used", uint64(1000), tags))
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err = (&NetIOStats{ps: &mps, skipChecks: true}).Gather(&acc)
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require.NoError(t, err)
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ntags := map[string]string{
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"interface": "eth0",
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}
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assert.NoError(t, acc.ValidateTaggedValue("bytes_sent", uint64(1123), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("bytes_recv", uint64(8734422), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("packets_sent", uint64(781), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("packets_recv", uint64(23456), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("err_in", uint64(832), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("err_out", uint64(8), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("drop_in", uint64(7), ntags))
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assert.NoError(t, acc.ValidateTaggedValue("drop_out", uint64(1), ntags))
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err = (&DiskIOStats{&mps}).Gather(&acc)
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require.NoError(t, err)
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dtags := map[string]string{
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"name": "sda1",
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"serial": "ab-123-ad",
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}
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assert.True(t, acc.CheckTaggedValue("reads", uint64(888), dtags))
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assert.True(t, acc.CheckTaggedValue("writes", uint64(5341), dtags))
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assert.True(t, acc.CheckTaggedValue("read_bytes", uint64(100000), dtags))
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assert.True(t, acc.CheckTaggedValue("write_bytes", uint64(200000), dtags))
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assert.True(t, acc.CheckTaggedValue("read_time", uint64(7123), dtags))
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assert.True(t, acc.CheckTaggedValue("write_time", uint64(9087), dtags))
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assert.True(t, acc.CheckTaggedValue("io_time", uint64(123552), dtags))
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err = (&MemStats{&mps}).Gather(&acc)
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require.NoError(t, err)
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vmtags := map[string]string(nil)
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assert.True(t, acc.CheckTaggedValue("total", uint64(12400), vmtags))
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assert.True(t, acc.CheckTaggedValue("available", uint64(7600), vmtags))
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assert.True(t, acc.CheckTaggedValue("used", uint64(5000), vmtags))
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assert.True(t, acc.CheckTaggedValue("available_percent",
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float64(7600)/float64(12400)*100,
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vmtags))
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assert.True(t, acc.CheckTaggedValue("used_percent",
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float64(5000)/float64(12400)*100,
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vmtags))
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assert.True(t, acc.CheckTaggedValue("free", uint64(1235), vmtags))
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acc.Points = nil
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err = (&SwapStats{&mps}).Gather(&acc)
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require.NoError(t, err)
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swaptags := map[string]string(nil)
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assert.NoError(t, acc.ValidateTaggedValue("total", uint64(8123), swaptags))
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assert.NoError(t, acc.ValidateTaggedValue("used", uint64(1232), swaptags))
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assert.NoError(t, acc.ValidateTaggedValue("used_percent", float64(12.2), swaptags))
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assert.NoError(t, acc.ValidateTaggedValue("free", uint64(6412), swaptags))
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assert.NoError(t, acc.ValidateTaggedValue("in", uint64(7), swaptags))
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assert.NoError(t, acc.ValidateTaggedValue("out", uint64(830), swaptags))
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}
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// Asserts that a given accumulator contains a measurment of type float64 with
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// specific tags within a certain distance of a given expected value. Asserts a failure
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// if the measurement is of the wrong type, or if no matching measurements are found
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//
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// Paramaters:
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// t *testing.T : Testing object to use
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// acc testutil.Accumulator: Accumulator to examine
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// measurement string : Name of the measurement to examine
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// expectedValue float64 : Value to search for within the measurement
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// delta float64 : Maximum acceptable distance of an accumulated value
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// from the expectedValue parameter. Useful when
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// floating-point arithmatic imprecision makes looking
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// for an exact match impractical
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// tags map[string]string : Tag set the found measurement must have. Set to nil to
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// ignore the tag set.
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func assertContainsTaggedFloat(
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t *testing.T,
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acc testutil.Accumulator,
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measurement string,
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expectedValue float64,
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delta float64,
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tags map[string]string,
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) {
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var actualValue float64
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for _, pt := range acc.Points {
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if pt.Measurement == measurement {
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if (tags == nil) || reflect.DeepEqual(pt.Tags, tags) {
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if value, ok := pt.Values["value"].(float64); ok {
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actualValue = value
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if (value >= expectedValue-delta) && (value <= expectedValue+delta) {
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// Found the point, return without failing
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return
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}
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} else {
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assert.Fail(t, fmt.Sprintf("Measurement \"%s\" does not have type float64",
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measurement))
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}
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}
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}
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}
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msg := fmt.Sprintf("Could not find measurement \"%s\" with requested tags within %f of %f, Actual: %f",
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measurement, delta, expectedValue, actualValue)
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assert.Fail(t, msg)
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}
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