// TestBatch_MultipleBatches ensures that a batcher correctly processes multiple batches.
func TestBatch_MultipleBatches(t *testing.T) {
batchSize := 2
batcher := tsdb.NewPointBatcher(batchSize, 100*time.Millisecond)
if batcher == nil {
t.Fatal("failed to create batcher for size test")
}
batcher.Start()
var p tsdb.Point
var b []tsdb.Point
batcher.In() <- p
batcher.In() <- p
b = <-batcher.Out() // Batch threshold reached.
if len(b) != batchSize {
t.Errorf("received batch (size) has incorrect length exp %d, got %d", batchSize, len(b))
}
batcher.In() <- p
b = <-batcher.Out() // Timeout triggered.
if len(b) != 1 {
t.Errorf("received batch (timeout) has incorrect length exp %d, got %d", 1, len(b))
}
checkPointBatcherStats(t, batcher, -1, 3, 1, 1)
}
// TestBatch_Flush ensures that a batcher generates a batch when flushed
func TestBatch_Flush(t *testing.T) {
batchSize := 2
batcher := tsdb.NewPointBatcher(batchSize, time.Hour)
if batcher == nil {
t.Fatal("failed to create batcher for flush test")
}
batcher.Start()
var p tsdb.Point
go func() {
batcher.In() <- p
batcher.Flush()
}()
batch := <-batcher.Out()
if len(batch) != 1 {
t.Errorf("received batch has incorrect length exp %d, got %d", 1, len(batch))
}
checkPointBatcherStats(t, batcher, -1, 1, 0, 0)
}
// TestBatch_Size ensures that a batcher generates a batch when the timeout triggers.
func TestBatch_Timeout(t *testing.T) {
batchSize := 5
batcher := tsdb.NewPointBatcher(batchSize+1, 100*time.Millisecond)
if batcher == nil {
t.Fatal("failed to create batcher for timeout test")
}
batcher.Start()
var p tsdb.Point
go func() {
for i := 0; i < batchSize; i++ {
batcher.In() <- p
}
}()
batch := <-batcher.Out()
if len(batch) != batchSize {
t.Errorf("received batch has incorrect length exp %d, got %d", batchSize, len(batch))
}
checkPointBatcherStats(t, batcher, -1, batchSize, 0, 1)
}
// TestBatch_Size ensures that a buffered batcher generates a batch when the size threshold is reached.
func TestBatch_SizeBuffered(t *testing.T) {
batchSize := 5
batcher := tsdb.NewPointBatcher(batchSize, 5, time.Hour)
if batcher == nil {
t.Fatal("failed to create batcher for size test")
}
batcher.Start()
var p models.Point
go func() {
for i := 0; i < batchSize; i++ {
batcher.In() <- p
}
}()
batch := <-batcher.Out()
if len(batch) != batchSize {
t.Errorf("received batch has incorrect length exp %d, got %d", batchSize, len(batch))
}
checkPointBatcherStats(t, batcher, -1, batchSize, 1, 0)
}