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|
//go:build unit
package worker
import (
"context"
"errors"
"math/rand"
"sync"
"testing"
"git.sr.ht/~gabrielgio/img/pkg/testkit"
)
type (
mockCounterListProcessor struct {
done bool
countTo int
counter int
}
mockContextListProcessor struct {
}
)
func TestListProcessorLimit(t *testing.T) {
mock := &mockCounterListProcessor{
countTo: 10000,
}
worker := NewWorkerFromListProcessor[int](mock, nil)
err := worker.Start(context.Background())
testkit.TestFatalError(t, "Start", err)
testkit.TestValue(t, "Start", mock.countTo, mock.counter)
}
func TestListProcessorContextCancelQuery(t *testing.T) {
mock := &mockContextListProcessor{}
worker := NewWorkerFromListProcessor[int](mock, nil)
ctx, cancel := context.WithCancel(context.Background())
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
err := worker.Start(ctx)
if errors.Is(err, context.Canceled) {
return
}
testkit.TestFatalError(t, "Start", err)
}()
cancel()
// this rely on timeout to test
wg.Wait()
}
func (m *mockCounterListProcessor) Query(_ context.Context) ([]int, error) {
if m.done {
return make([]int, 0), nil
}
values := make([]int, 0, m.countTo)
for i := 0; i < m.countTo; i++ {
values = append(values, rand.Int())
}
m.done = true
return values, nil
}
func (m *mockCounterListProcessor) Process(_ context.Context, _ int) error {
m.counter++
return nil
}
func (m *mockContextListProcessor) Query(_ context.Context) ([]int, error) {
// keeps returning the query so it can run in infinity loop
values := make([]int, 0, 10)
for i := 0; i < 10; i++ {
values = append(values, rand.Int())
}
return values, nil
}
func (m *mockContextListProcessor) Process(_ context.Context, _ int) error {
// do nothing
return nil
}
|
