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package extract
import (
"bytes"
"context"
"fmt"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestCancelableReader(t *testing.T) {
var b [100000]byte
ctx, cancel := context.WithCancel(context.Background())
reader := newCancelableReader(ctx, bytes.NewReader(b[:]))
defer cancel()
var buff [1000]byte
readed := 0
for {
n, err := reader.Read(buff[:])
if err != nil {
fmt.Println("exit error:", err)
require.Equal(t, "EOF", err.Error())
break
}
require.NotZero(t, n)
time.Sleep(10 * time.Millisecond)
readed += n
}
fmt.Println("Readed", readed, "out of", len(b))
require.Equal(t, len(b), readed)
}
func TestCancelableReaderWithInterruption(t *testing.T) {
var b [100000]byte
ctx, cancel := context.WithCancel(context.Background())
reader := newCancelableReader(ctx, bytes.NewReader(b[:]))
defer cancel()
go func() {
time.Sleep(100 * time.Millisecond)
cancel()
}()
var buff [1000]byte
readed := 0
for {
n, err := reader.Read(buff[:])
if err != nil {
fmt.Println("exit error:", err)
require.Equal(t, "interrupted", err.Error())
break
}
require.NotZero(t, n)
time.Sleep(10 * time.Millisecond)
readed += n
}
fmt.Println("Readed", readed, "out of", len(b))
require.True(t, readed < len(b))
}
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