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package internal
import (
"bytes"
"encoding/binary"
"testing"
"ior/internal/flags"
"ior/internal/types"
)
func TestBuildSyscallSamplingRatesFamilyAndSyscallOverride(t *testing.T) {
cfg := flags.NewFlags()
cfg.SyscallFamilySamplingRates[types.FamilyTime] = 100
cfg.SyscallSamplingRates["clock_gettime"] = 3
rates := buildSyscallSamplingRates(cfg)
if got := rates[types.SYS_ENTER_NANOSLEEP]; got != 100 {
t.Fatalf("nanosleep rate = %d, want 100", got)
}
if got := rates[types.SYS_ENTER_CLOCK_GETTIME]; got != 3 {
t.Fatalf("clock_gettime rate = %d, want 3", got)
}
}
func TestDecodeRawSyscallAggregate(t *testing.T) {
want := rawSyscallAggregate{
Count: 7,
Errors: 2,
TotalDuration: 1234,
MinDuration: 12,
MaxDuration: 456,
Histogram: [8]uint64{1, 2, 3, 4, 5, 6, 7, 8},
}
var buf bytes.Buffer
if err := binary.Write(&buf, binary.LittleEndian, want); err != nil {
t.Fatalf("binary write: %v", err)
}
got, err := decodeRawSyscallAggregate(buf.Bytes())
if err != nil {
t.Fatalf("decodeRawSyscallAggregate error: %v", err)
}
if got != want {
t.Fatalf("decoded aggregate = %+v, want %+v", got, want)
}
}
func TestDecodeRawSyscallAggregateRejectsBadSize(t *testing.T) {
if _, err := decodeRawSyscallAggregate([]byte{1, 2, 3}); err == nil {
t.Fatal("expected error for short value")
}
}
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