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package streamrow
import (
"sync"
"testing"
"ior/internal/event"
"ior/internal/file"
"ior/internal/types"
)
func TestSequencerStartsAfterSeed(t *testing.T) {
seq := NewSequencer(41)
if got, want := seq.Next(), uint64(42); got != want {
t.Fatalf("first Next() = %d, want %d", got, want)
}
if got, want := seq.Next(), uint64(43); got != want {
t.Fatalf("second Next() = %d, want %d", got, want)
}
}
func TestSequencerIsMonotonicUnderConcurrency(t *testing.T) {
seq := NewSequencer(0)
const workers = 8
const perWorker = 64
got := make(chan uint64, workers*perWorker)
var wg sync.WaitGroup
for i := 0; i < workers; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < perWorker; j++ {
got <- seq.Next()
}
}()
}
wg.Wait()
close(got)
seen := make(map[uint64]struct{}, workers*perWorker)
for n := range got {
if _, ok := seen[n]; ok {
t.Fatalf("duplicate sequence number %d", n)
}
seen[n] = struct{}{}
}
if got, want := len(seen), workers*perWorker; got != want {
t.Fatalf("unique sequence count = %d, want %d", got, want)
}
}
func TestNewPopulatesFieldsFromPair(t *testing.T) {
enter := &types.OpenEvent{TraceId: types.SYS_ENTER_OPENAT, Time: 1234, Pid: 42, Tid: 84}
exit := &types.RetEvent{TraceId: types.SYS_EXIT_OPENAT, Time: 1300, Ret: -2, Pid: 42, Tid: 84}
pair := event.NewPair(enter)
pair.ExitEv = exit
pair.File = file.NewFd(7, "/tmp/test.txt", 0)
pair.Comm = "cat"
pair.Duration = 66
pair.DurationToPrev = 19
pair.Bytes = 512
pair.AddressSpaceBytes = 2048
pair.RequestedSleepNs = 987_654
got := New(9, pair)
if got.Seq != 9 || got.TimeNs != 1234 {
t.Fatalf("Seq/TimeNs = %d/%d, want 9/1234", got.Seq, got.TimeNs)
}
if got.Syscall != "openat" || got.Family != "FS" || got.Comm != "cat" {
t.Fatalf("Syscall/Family/Comm = %q/%q/%q, want openat/FS/cat", got.Syscall, got.Family, got.Comm)
}
if got.PID != 42 || got.TID != 84 {
t.Fatalf("PID/TID = %d/%d, want 42/84", got.PID, got.TID)
}
if got.FileName != "/tmp/test.txt" || got.FD != 7 {
t.Fatalf("FileName/FD = %q/%d, want /tmp/test.txt/7", got.FileName, got.FD)
}
if got.DurationNs != 66 || got.GapNs != 19 || got.Bytes != 512 {
t.Fatalf("DurationNs/GapNs/Bytes = %d/%d/%d, want 66/19/512", got.DurationNs, got.GapNs, got.Bytes)
}
if got.AddressSpaceBytes != 2048 {
t.Fatalf("AddressSpaceBytes = %d, want 2048", got.AddressSpaceBytes)
}
if got.RequestedSleepNs != 987_654 {
t.Fatalf("RequestedSleepNs = %d, want 987654", got.RequestedSleepNs)
}
if got.RetVal != -2 || !got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want -2/true", got.RetVal, got.IsError)
}
}
func TestNewWarningPopulatesSyntheticWarningFields(t *testing.T) {
got := NewWarning(7, "Dropped malformed event")
if got.Seq != 7 || got.TimeNs == 0 {
t.Fatalf("Seq/TimeNs = %d/%d, want 7/non-zero", got.Seq, got.TimeNs)
}
if got.Syscall != "warning" || got.Family != "Misc" || got.Comm != "ior" {
t.Fatalf("Syscall/Family/Comm = %q/%q/%q, want warning/Misc/ior", got.Syscall, got.Family, got.Comm)
}
if got.FileName != "Dropped malformed event" || got.FD != UnknownFD {
t.Fatalf("FileName/FD = %q/%d, want warning text/%d", got.FileName, got.FD, UnknownFD)
}
if got.RetVal != -1 || !got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want -1/true", got.RetVal, got.IsError)
}
}
func TestNewCarriesReadyCountForEpollWait(t *testing.T) {
enter := &types.FdEvent{TraceId: types.SYS_ENTER_EPOLL_WAIT, Time: 2000, Pid: 15, Tid: 16, Fd: 9}
exit := &types.RetEvent{TraceId: types.SYS_EXIT_EPOLL_WAIT, Time: 2100, Ret: 3, Pid: 15, Tid: 16}
pair := event.NewPair(enter)
pair.ExitEv = exit
pair.File = file.NewFd(9, "anon_inode:[eventpoll]", -1)
got := New(17, pair)
if got.Syscall != "epoll_wait" || got.FD != 9 {
t.Fatalf("Syscall/FD = %q/%d, want epoll_wait/9", got.Syscall, got.FD)
}
if got.RetVal != 3 || got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want 3/false", got.RetVal, got.IsError)
}
if got.Bytes != 0 {
t.Fatalf("Bytes = %d, want 0 for epoll ready-count events", got.Bytes)
}
}
func TestNewCarriesReadyCountForPoll(t *testing.T) {
enter := &types.PollEvent{TraceId: types.SYS_ENTER_POLL, Time: 3000, Pid: 22, Tid: 23, Nfds: 1, TimeoutNs: 100_000_000}
exit := &types.RetEvent{TraceId: types.SYS_EXIT_POLL, Time: 3100, Ret: 1, Pid: 22, Tid: 23}
pair := event.NewPair(enter)
pair.ExitEv = exit
got := New(24, pair)
if got.Syscall != "poll" || got.FD != UnknownFD {
t.Fatalf("Syscall/FD = %q/%d, want poll/%d", got.Syscall, got.FD, UnknownFD)
}
if got.RetVal != 1 || got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want 1/false", got.RetVal, got.IsError)
}
if got.Bytes != 0 {
t.Fatalf("Bytes = %d, want 0 for poll ready-count events", got.Bytes)
}
}
func TestNewCarriesRequestedSleepNs(t *testing.T) {
enter := &types.SleepEvent{TraceId: types.SYS_ENTER_NANOSLEEP, Time: 3200, Pid: 31, Tid: 32, RequestedNs: 5_000_000}
exit := &types.RetEvent{TraceId: types.SYS_EXIT_NANOSLEEP, Time: 3300, Ret: 0, Pid: 31, Tid: 32}
pair := event.NewPair(enter)
pair.ExitEv = exit
pair.RequestedSleepNs = enter.RequestedNs
got := New(25, pair)
if got.Syscall != "nanosleep" || got.FD != UnknownFD {
t.Fatalf("Syscall/FD = %q/%d, want nanosleep/%d", got.Syscall, got.FD, UnknownFD)
}
if got.RequestedSleepNs != 5_000_000 {
t.Fatalf("RequestedSleepNs = %d, want 5000000", got.RequestedSleepNs)
}
if got.Bytes != 0 {
t.Fatalf("Bytes = %d, want 0 for sleep events", got.Bytes)
}
}
// TestRowValueAccessors verifies that all typed accessor methods return the
// underlying field values set on a Row.
func TestRowValueAccessors(t *testing.T) {
r := Row{
Syscall: "read",
Comm: "cat",
FileName: "/etc/hosts",
PID: 10,
TID: 11,
FD: 3,
DurationNs: 500,
GapNs: 200,
Bytes: 1024,
RetVal: -1,
IsError: true,
}
if r.SyscallValue() != "read" {
t.Fatalf("SyscallValue = %q, want read", r.SyscallValue())
}
if r.CommValue() != "cat" {
t.Fatalf("CommValue = %q, want cat", r.CommValue())
}
if r.FileValue() != "/etc/hosts" {
t.Fatalf("FileValue = %q, want /etc/hosts", r.FileValue())
}
if r.PIDValue() != 10 {
t.Fatalf("PIDValue = %d, want 10", r.PIDValue())
}
if r.TIDValue() != 11 {
t.Fatalf("TIDValue = %d, want 11", r.TIDValue())
}
if r.FDValue() != 3 {
t.Fatalf("FDValue = %d, want 3", r.FDValue())
}
if r.LatencyValue() != 500 {
t.Fatalf("LatencyValue = %d, want 500", r.LatencyValue())
}
if r.GapValue() != 200 {
t.Fatalf("GapValue = %d, want 200", r.GapValue())
}
if r.BytesValue() != 1024 {
t.Fatalf("BytesValue = %d, want 1024", r.BytesValue())
}
if r.ReturnValue() != -1 {
t.Fatalf("ReturnValue = %d, want -1", r.ReturnValue())
}
if !r.ErrorValue() {
t.Fatal("ErrorValue = false, want true")
}
}
// TestSequencerNilSafeNext verifies that calling Next on a nil Sequencer returns
// 0 without panicking.
func TestSequencerNilSafeNext(t *testing.T) {
var s *Sequencer
if got := s.Next(); got != 0 {
t.Fatalf("nil Sequencer.Next() = %d, want 0", got)
}
}
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