mirror of
https://github.com/henrygd/beszel.git
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54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
//go:build linux && testing
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package agent
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import (
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"math"
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"testing"
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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 TestEthtoolCounterCombinesHighWord(t *testing.T) {
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stats := map[string]uint64{
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"counter": 123,
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"counter_h": 2,
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}
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value, ok := ethtoolCounter(stats, "counter", "counter_h")
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require.True(t, ok)
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assert.Equal(t, uint64(2<<32+123), value)
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}
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func TestEthtoolCounterAddsLowWordAbove32Bits(t *testing.T) {
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// nvethernet accumulates each register in 64-bit software fields, so the low
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// word can carry past 32 bits; OR would drop the overlapping bit.
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stats := map[string]uint64{
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"counter": 1<<32 + 5,
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"counter_h": 1,
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}
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value, ok := ethtoolCounter(stats, "counter", "counter_h")
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require.True(t, ok)
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assert.Equal(t, uint64(2<<32+5), value)
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}
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func TestEthtoolCounterRejectsOverflow(t *testing.T) {
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stats := map[string]uint64{
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"counter": math.MaxUint64,
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"counter_h": 1,
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}
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_, ok := ethtoolCounter(stats, "counter", "counter_h")
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assert.False(t, ok)
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}
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func TestEthtoolCounterFallsBackToLowWord(t *testing.T) {
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stats := map[string]uint64{"counter": 456}
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value, ok := ethtoolCounter(stats, "counter", "counter_h")
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require.True(t, ok)
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assert.Equal(t, uint64(456), value)
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}
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