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|
package fasthttp
import (
"bufio"
"errors"
"fmt"
"io"
"testing"
"time"
)
func TestNewStreamReader(t *testing.T) {
t.Parallel()
ch := make(chan struct{})
r := NewStreamReader(func(w *bufio.Writer) {
fmt.Fprintf(w, "Hello, world\n")
fmt.Fprintf(w, "Line #2\n")
close(ch)
})
data, err := io.ReadAll(r)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
expectedData := "Hello, world\nLine #2\n"
if string(data) != expectedData {
t.Fatalf("unexpected data %q. Expecting %q", data, expectedData)
}
if err = r.Close(); err != nil {
t.Fatalf("unexpected error")
}
select {
case <-ch:
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
func TestStreamReaderClose(t *testing.T) {
t.Parallel()
firstLine := "the first line must pass"
ch := make(chan error, 1)
r := NewStreamReader(func(w *bufio.Writer) {
fmt.Fprintf(w, "%s", firstLine)
if err := w.Flush(); err != nil {
ch <- fmt.Errorf("unexpected error on first flush: %w", err)
return
}
data := createFixedBody(4000)
for i := 0; i < 100; i++ {
w.Write(data) //nolint:errcheck
}
if err := w.Flush(); err == nil {
ch <- errors.New("expecting error on the second flush")
}
ch <- nil
})
buf := make([]byte, len(firstLine))
n, err := io.ReadFull(r, buf)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if n != len(buf) {
t.Fatalf("unexpected number of bytes read: %d. Expecting %d", n, len(buf))
}
if string(buf) != firstLine {
t.Fatalf("unexpected result: %q. Expecting %q", buf, firstLine)
}
if err := r.Close(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
select {
case err := <-ch:
if err != nil {
t.Fatalf("error returned from stream reader: %v", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout when waiting for stream reader")
}
// read trailing data
go func() {
if _, err := io.ReadAll(r); err != nil {
ch <- fmt.Errorf("unexpected error when reading trailing data: %w", err)
return
}
ch <- nil
}()
select {
case err := <-ch:
if err != nil {
t.Fatalf("error returned when reading tail data: %v", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout when reading tail data")
}
}
|
