telegraf/plugins/inputs/mem/memory_test.go

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package mem
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import (
"testing"
"github.com/influxdata/telegraf/plugins/inputs/system"
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"github.com/influxdata/telegraf/testutil"
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"github.com/shirou/gopsutil/mem"
"github.com/stretchr/testify/require"
)
func TestMemStats(t *testing.T) {
var mps system.MockPS
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var err error
defer mps.AssertExpectations(t)
var acc testutil.Accumulator
vms := &mem.VirtualMemoryStat{
Total: 12400,
Available: 7600,
Used: 5000,
Free: 1235,
Active: 8134,
Inactive: 1124,
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Slab: 1234,
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Wired: 134,
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// Buffers: 771,
// Cached: 4312,
// Shared: 2142,
CommitLimit: 1,
CommittedAS: 118680,
Dirty: 4,
HighFree: 0,
HighTotal: 0,
HugePageSize: 4096,
HugePagesFree: 0,
HugePagesTotal: 0,
LowFree: 69936,
LowTotal: 255908,
Mapped: 42236,
PageTables: 1236,
Shared: 0,
SwapCached: 0,
SwapFree: 524280,
SwapTotal: 524280,
VMallocChunk: 3872908,
VMallocTotal: 3874808,
VMallocUsed: 1416,
Writeback: 0,
WritebackTmp: 0,
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}
mps.On("VMStat").Return(vms, nil)
err = (&MemStats{&mps}).Gather(&acc)
require.NoError(t, err)
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memfields := map[string]interface{}{
"total": uint64(12400),
"available": uint64(7600),
"used": uint64(5000),
"available_percent": float64(7600) / float64(12400) * 100,
"used_percent": float64(5000) / float64(12400) * 100,
"free": uint64(1235),
"cached": uint64(0),
"buffered": uint64(0),
"active": uint64(8134),
"inactive": uint64(1124),
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"wired": uint64(134),
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"slab": uint64(1234),
"commit_limit": uint64(1),
"committed_as": uint64(118680),
"dirty": uint64(4),
"high_free": uint64(0),
"high_total": uint64(0),
"huge_page_size": uint64(4096),
"huge_pages_free": uint64(0),
"huge_pages_total": uint64(0),
"low_free": uint64(69936),
"low_total": uint64(255908),
"mapped": uint64(42236),
"page_tables": uint64(1236),
"shared": uint64(0),
"swap_cached": uint64(0),
"swap_free": uint64(524280),
"swap_total": uint64(524280),
"vmalloc_chunk": uint64(3872908),
"vmalloc_total": uint64(3874808),
"vmalloc_used": uint64(1416),
"write_back": uint64(0),
"write_back_tmp": uint64(0),
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}
acc.AssertContainsTaggedFields(t, "mem", memfields, make(map[string]string))
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acc.Metrics = nil
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}