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package pipeline
import (
"context"
"testing"
"time"
)
func TestBatch_Full(t *testing.T) {
t.Parallel()
input := make(chan int, 10)
for i := 1; i <= 10; i++ {
input <- i
}
close(input)
out := Batch(t.Context(), input, 3, time.Second)
var batches [][]int
for b := range out {
batches = append(batches, b)
}
if len(batches) != 4 {
t.Fatalf("expected 4 batches, got %d: %v", len(batches), batches)
}
if len(batches[0]) != 3 {
t.Fatalf("expected first batch size 3, got %d", len(batches[0]))
}
if len(batches[3]) != 1 {
t.Fatalf("expected last batch size 1, got %d", len(batches[3]))
}
}
func TestBatch_TimeoutFlush(t *testing.T) {
t.Parallel()
input := make(chan int)
out := Batch(t.Context(), input, 100, 50*time.Millisecond)
input <- 1
input <- 2
select {
case batch := <-out:
if len(batch) != 2 {
t.Fatalf("expected batch of 2 from timeout flush, got %d", len(batch))
}
case <-time.After(time.Second):
t.Fatal("timeout waiting for batch flush")
}
close(input)
for range out {
}
}
func TestBatch_ContextCancel(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithCancel(t.Context())
input := make(chan int)
out := Batch(ctx, input, 100, time.Second)
cancel()
done := make(chan struct{})
go func() {
for range out {
}
close(done)
}()
select {
case <-done:
case <-time.After(time.Second):
t.Fatal("timeout waiting for shutdown")
}
}
func TestBatch_NilInput(t *testing.T) {
t.Parallel()
defer func() {
if r := recover(); r == nil {
t.Error("expected panic for nil input")
}
}()
Batch[int](t.Context(), nil, 10, time.Second)
}
func TestBatch_PanicOnZeroSize(t *testing.T) {
t.Parallel()
defer func() {
if r := recover(); r == nil {
t.Error("expected panic for batch size < 1")
}
}()
input := make(chan int)
Batch(t.Context(), input, 0, time.Second)
}
|
