func TestWriteAfterWriterClose(t *testing.T) {
r, w := New()
s := "hello"
errs := make(chan error)
go func() {
n, err := w.Write([]byte(s))
assert.MustNoError(err)
assert.Must(n == len(s))
assert.MustNoError(w.Close())
_, err = w.Write([]byte("world"))
errs <- err
}()
buf := make([]byte, 4096)
n, err := io.ReadFull(r, buf)
assert.Must(errors.Equal(err, io.EOF))
assert.Must(string(buf[:n]) == s)
err = <-errs
assert.Must(errors.Equal(err, io.ErrClosedPipe))
assert.MustNoError(r.Close())
}
func TestBytesizeError(t *testing.T) {
var err error
_, err = Parse("--1")
assert.Must(errors.Equal(err, ErrBadBytesize))
_, err = Parse("hello world")
assert.Must(errors.Equal(err, ErrBadBytesize))
_, err = Parse("123.132.32")
assert.Must(errors.Equal(err, ErrBadBytesize))
}
func testPipe2(t *testing.T, fileName string) {
r, w, f := openPipe(t, fileName)
defer f.Close()
c := 1024 * 128
s := "Hello world!!"
go func() {
for i := 0; i < c; i++ {
m := fmt.Sprintf("[%d]%s ", i, s)
n, err := w.Write([]byte(m))
assert.MustNoError(err)
assert.Must(n == len(m))
}
assert.MustNoError(w.Close())
}()
time.Sleep(time.Millisecond * 10)
buf := make([]byte, len(s)*c*2)
n, err := io.ReadFull(r, buf)
assert.Must(errors.Equal(err, io.EOF))
buf = buf[:n]
for i := 0; i < c; i++ {
m := fmt.Sprintf("[%d]%s ", i, s)
assert.Must(len(buf) >= len(m))
assert.Must(string(buf[:len(m)]) == m)
buf = buf[len(m):]
}
assert.Must(len(buf) == 0)
assert.MustNoError(r.Close())
}
func testBacklog(t *testing.T, bl *Backlog, size int) {
input := randSlice(32)
r1, err := bl.NewReader()
assert.MustNoError(err)
checkWriter(bl, input)
checkReader(r1, input)
checkReader(r1, []byte{})
input = randSlice(size)
checkWriter(bl, input)
checkReader(r1, input)
checkWriter(bl, randSlice(size))
assert.Must(r1.IsValid() == true)
r2, err := bl.NewReader()
assert.MustNoError(err)
input = []byte{0xde, 0xad, 0xbe, 0xef}
checkWriter(bl, input)
assert.Must(r1.IsValid() == false)
_, err = r1.Read([]byte{0})
assert.Must(errors.Equal(err, ErrInvalidOffset))
b := make([]byte, len(input))
n, err := io.ReadFull(r2, b)
assert.MustNoError(err)
assert.Must(n == len(b) && bytes.Equal(b, input))
bl.Close()
assert.Must(r1.IsValid() == false)
assert.Must(r2.IsValid() == false)
_, err = r1.Read([]byte{0})
assert.Must(errors.Equal(err, ErrClosedBacklog))
_, err = r2.Read([]byte{0})
assert.Must(errors.Equal(err, ErrClosedBacklog))
_, err = bl.Write([]byte{0})
assert.Must(errors.Equal(err, ErrClosedBacklog))
}
func TestPipeReadClose2(t *testing.T) {
r, w := New()
c := make(chan int, 1)
go delayClose(t, r, c, pipeTest{})
n, err := r.Read(make([]byte, 64))
<-c
assert.Must(errors.Equal(err, io.ErrClosedPipe))
assert.Must(n == 0)
assert.MustNoError(w.Close())
}
func testPipe3(t *testing.T, fileName string) {
r, w, f := openPipe(t, fileName)
defer f.Close()
c := make(chan int)
size := 4096
go func() {
buf := make([]byte, size)
for {
n, err := r.Read(buf)
if errors.Equal(err, io.EOF) {
break
}
assert.MustNoError(err)
c <- n
}
assert.MustNoError(r.Close())
c <- 0
}()
go func() {
buf := make([]byte, size)
for i := 1; i < size; i++ {
n, err := w.Write(buf[:i])
assert.MustNoError(err)
assert.Must(n == i)
}
assert.MustNoError(w.Close())
}()
sum := 0
for i := 1; i < size; i++ {
sum += i
}
for {
n := <-c
if n == 0 {
break
}
sum -= n
}
assert.Must(sum == 0)
}
func TestWriteNil(t *testing.T) {
r, w := New()
go func() {
n, err := w.Write(nil)
assert.MustNoError(err)
assert.Must(n == 0)
assert.MustNoError(w.Close())
}()
time.Sleep(time.Millisecond * 10)
buf := make([]byte, 4096)
n, err := io.ReadFull(r, buf)
assert.Must(errors.Equal(err, io.EOF))
assert.Must(n == 0)
assert.MustNoError(r.Close())
}
func testPipe4(t *testing.T, fileName string) {
r, w, f := openPipe(t, fileName)
defer f.Close()
key := []byte("spinlock aes-128")
block := aes.BlockSize
count := 1024 * 1024 * 128 / block
go func() {
buf := make([]byte, count*block)
m, err := aes.NewCipher(key)
assert.MustNoError(err)
for i := 0; i < len(buf); i++ {
buf[i] = byte(i)
}
e := cipher.NewCBCEncrypter(m, make([]byte, block))
e.CryptBlocks(buf, buf)
n, err := w.Write(buf)
assert.MustNoError(err)
assert.MustNoError(w.Close())
assert.Must(n == len(buf))
}()
buf := make([]byte, count*block)
m, err := aes.NewCipher(key)
assert.MustNoError(err)
n, err := io.ReadFull(r, buf)
assert.MustNoError(err)
assert.Must(n == len(buf))
e := cipher.NewCBCDecrypter(m, make([]byte, block))
e.CryptBlocks(buf, buf)
for i := 0; i < len(buf); i++ {
assert.Must(buf[i] == byte(i))
}
_, err = io.ReadFull(r, buf)
assert.Must(errors.Equal(err, io.EOF))
assert.MustNoError(r.Close())
}
func testPipe1(t *testing.T, fileName string) {
r, w, f := openPipe(t, fileName)
defer f.Close()
s := "Hello world!!"
go func(data []byte) {
n, err := w.Write(data)
assert.MustNoError(err)
assert.Must(n == len(data))
assert.MustNoError(w.Close())
}([]byte(s))
buf := make([]byte, 64)
n, err := io.ReadFull(r, buf)
assert.Must(errors.Equal(err, io.EOF))
assert.Must(n == len(s))
assert.Must(string(buf[:n]) == s)
assert.MustNoError(r.Close())
}
func TestPipeWriteClose(t *testing.T) {
for _, u := range pipeTests {
r, w := New()
c := make(chan int, 1)
if u.async {
go delayClose(t, r, c, u)
} else {
delayClose(t, r, c, u)
}
<-c
n, err := w.Write([]byte("hello, world"))
expect := u.err
if expect == nil {
expect = io.ErrClosedPipe
}
assert.Must(errors.Equal(err, expect))
assert.Must(n == 0)
assert.MustNoError(w.Close())
}
}
func TestPipeReadClose(t *testing.T) {
for _, u := range pipeTests {
r, w := New()
c := make(chan int, 1)
if u.async {
go delayClose(t, w, c, u)
} else {
delayClose(t, w, c, u)
}
buf := make([]byte, 64)
n, err := r.Read(buf)
<-c
expect := u.err
if expect == nil {
expect = io.EOF
}
assert.Must(errors.Equal(err, expect))
assert.Must(n == 0)
assert.MustNoError(r.Close())
}
}
