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|
package internal
import (
"context"
"sync"
"testing"
"time"
"ior/internal/statsengine"
"ior/internal/types"
)
type aggregateSourceStub struct {
mu sync.Mutex
rows [][]statsengine.SyscallAggregate
}
func (s *aggregateSourceStub) Drain() ([]statsengine.SyscallAggregate, error) {
s.mu.Lock()
defer s.mu.Unlock()
if len(s.rows) == 0 {
return nil, nil
}
next := s.rows[0]
s.rows = s.rows[1:]
return next, nil
}
type aggregateSinkStub struct {
mu sync.Mutex
rows []statsengine.SyscallAggregate
}
func (s *aggregateSinkStub) IngestSyscallAggregates(rows []statsengine.SyscallAggregate) {
s.mu.Lock()
defer s.mu.Unlock()
s.rows = append(s.rows, rows...)
}
func TestStartAggregateDrainLoopIngestsRows(t *testing.T) {
src := &aggregateSourceStub{
rows: [][]statsengine.SyscallAggregate{
{{TraceID: types.SYS_ENTER_FUTEX, Count: 2}},
},
}
sink := &aggregateSinkStub{}
el := &eventLoop{
cfg: eventLoopConfig{aggregateDrainEvery: 2 * time.Millisecond},
aggregateSrc: src,
aggregateSink: sink,
}
ctx, cancel := context.WithCancel(context.Background())
stop := el.startAggregateDrainLoop(ctx)
deadline := time.Now().Add(100 * time.Millisecond)
for time.Now().Before(deadline) {
sink.mu.Lock()
done := len(sink.rows) > 0
sink.mu.Unlock()
if done {
break
}
time.Sleep(2 * time.Millisecond)
}
cancel()
stop()
sink.mu.Lock()
defer sink.mu.Unlock()
if len(sink.rows) == 0 {
t.Fatal("expected drained aggregate rows")
}
if sink.rows[0].TraceID != types.SYS_ENTER_FUTEX || sink.rows[0].Count != 2 {
t.Fatalf("drained row = %+v, want futex count=2", sink.rows[0])
}
}
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