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Diffstat (limited to 'pkg/sentry/kernel/pipe/pipe_test.go')
-rw-r--r--pkg/sentry/kernel/pipe/pipe_test.go139
1 files changed, 0 insertions, 139 deletions
diff --git a/pkg/sentry/kernel/pipe/pipe_test.go b/pkg/sentry/kernel/pipe/pipe_test.go
deleted file mode 100644
index e3a14b665..000000000
--- a/pkg/sentry/kernel/pipe/pipe_test.go
+++ /dev/null
@@ -1,139 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package pipe
-
-import (
- "bytes"
- "testing"
-
- "gvisor.dev/gvisor/pkg/sentry/context/contexttest"
- "gvisor.dev/gvisor/pkg/sentry/usermem"
- "gvisor.dev/gvisor/pkg/syserror"
- "gvisor.dev/gvisor/pkg/waiter"
-)
-
-func TestPipeRW(t *testing.T) {
- ctx := contexttest.Context(t)
- r, w := NewConnectedPipe(ctx, 65536, 4096)
- defer r.DecRef()
- defer w.DecRef()
-
- msg := []byte("here's some bytes")
- wantN := int64(len(msg))
- n, err := w.Writev(ctx, usermem.BytesIOSequence(msg))
- if n != wantN || err != nil {
- t.Fatalf("Writev: got (%d, %v), wanted (%d, nil)", n, err, wantN)
- }
-
- buf := make([]byte, len(msg))
- n, err = r.Readv(ctx, usermem.BytesIOSequence(buf))
- if n != wantN || err != nil || !bytes.Equal(buf, msg) {
- t.Fatalf("Readv: got (%d, %v) %q, wanted (%d, nil) %q", n, err, buf, wantN, msg)
- }
-}
-
-func TestPipeReadBlock(t *testing.T) {
- ctx := contexttest.Context(t)
- r, w := NewConnectedPipe(ctx, 65536, 4096)
- defer r.DecRef()
- defer w.DecRef()
-
- n, err := r.Readv(ctx, usermem.BytesIOSequence(make([]byte, 1)))
- if n != 0 || err != syserror.ErrWouldBlock {
- t.Fatalf("Readv: got (%d, %v), wanted (0, %v)", n, err, syserror.ErrWouldBlock)
- }
-}
-
-func TestPipeWriteBlock(t *testing.T) {
- const atomicIOBytes = 2
- const capacity = MinimumPipeSize
-
- ctx := contexttest.Context(t)
- r, w := NewConnectedPipe(ctx, capacity, atomicIOBytes)
- defer r.DecRef()
- defer w.DecRef()
-
- msg := make([]byte, capacity+1)
- n, err := w.Writev(ctx, usermem.BytesIOSequence(msg))
- if wantN, wantErr := int64(capacity), syserror.ErrWouldBlock; n != wantN || err != wantErr {
- t.Fatalf("Writev: got (%d, %v), wanted (%d, %v)", n, err, wantN, wantErr)
- }
-}
-
-func TestPipeWriteUntilEnd(t *testing.T) {
- const atomicIOBytes = 2
-
- ctx := contexttest.Context(t)
- r, w := NewConnectedPipe(ctx, atomicIOBytes, atomicIOBytes)
- defer r.DecRef()
- defer w.DecRef()
-
- msg := []byte("here's some bytes")
-
- wDone := make(chan struct{}, 0)
- rDone := make(chan struct{}, 0)
- defer func() {
- // Signal the reader to stop and wait until it does so.
- close(wDone)
- <-rDone
- }()
-
- go func() {
- defer close(rDone)
- // Read from r until done is closed.
- ctx := contexttest.Context(t)
- buf := make([]byte, len(msg)+1)
- dst := usermem.BytesIOSequence(buf)
- e, ch := waiter.NewChannelEntry(nil)
- r.EventRegister(&e, waiter.EventIn)
- defer r.EventUnregister(&e)
- for {
- n, err := r.Readv(ctx, dst)
- dst = dst.DropFirst64(n)
- if err == syserror.ErrWouldBlock {
- select {
- case <-ch:
- continue
- case <-wDone:
- // We expect to have 1 byte left in dst since len(buf) ==
- // len(msg)+1.
- if dst.NumBytes() != 1 || !bytes.Equal(buf[:len(msg)], msg) {
- t.Errorf("Reader: got %q (%d bytes remaining), wanted %q", buf, dst.NumBytes(), msg)
- }
- return
- }
- }
- if err != nil {
- t.Fatalf("Readv: got unexpected error %v", err)
- }
- }
- }()
-
- src := usermem.BytesIOSequence(msg)
- e, ch := waiter.NewChannelEntry(nil)
- w.EventRegister(&e, waiter.EventOut)
- defer w.EventUnregister(&e)
- for src.NumBytes() != 0 {
- n, err := w.Writev(ctx, src)
- src = src.DropFirst64(n)
- if err == syserror.ErrWouldBlock {
- <-ch
- continue
- }
- if err != nil {
- t.Fatalf("Writev: got (%d, %v)", n, err)
- }
- }
-}