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// 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 host
import (
"syscall"
"testing"
"gvisor.dev/gvisor/pkg/sentry/contexttest"
)
// TestCloseFD verifies fds will be closed.
func TestCloseFD(t *testing.T) {
var p [2]int
if err := syscall.Pipe(p[0:]); err != nil {
t.Fatalf("Failed to create pipe %v", err)
}
defer syscall.Close(p[0])
defer syscall.Close(p[1])
// Use the write-end because we will detect if it's closed on the read end.
ctx := contexttest.Context(t)
file, err := NewFile(ctx, p[1])
if err != nil {
t.Fatalf("Failed to create File: %v", err)
}
file.DecRef(ctx)
s := make([]byte, 10)
if c, err := syscall.Read(p[0], s); c != 0 || err != nil {
t.Errorf("want 0, nil (EOF) from read end, got %v, %v", c, err)
}
}
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