60 lines
2.1 KiB
Go
60 lines
2.1 KiB
Go
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package filetest provides a test implementation of an fs.File.
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package filetest
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import (
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"fmt"
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"testing"
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"gvisor.googlesource.com/gvisor/pkg/sentry/context"
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"gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest"
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"gvisor.googlesource.com/gvisor/pkg/sentry/fs"
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"gvisor.googlesource.com/gvisor/pkg/sentry/fs/anon"
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"gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil"
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"gvisor.googlesource.com/gvisor/pkg/sentry/usermem"
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"gvisor.googlesource.com/gvisor/pkg/waiter"
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)
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// TestFileOperations is an implementation of the File interface. It provides all
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// required methods.
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type TestFileOperations struct {
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fsutil.FileNoopRelease `state:"nosave"`
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fsutil.FilePipeSeek `state:"nosave"`
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fsutil.FileNotDirReaddir `state:"nosave"`
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fsutil.FileNoFsync `state:"nosave"`
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fsutil.FileNoopFlush `state:"nosave"`
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fsutil.FileNoMMap `state:"nosave"`
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fsutil.FileNoIoctl `state:"nosave"`
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waiter.AlwaysReady `state:"nosave"`
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}
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// NewTestFile creates and initializes a new test file.
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func NewTestFile(tb testing.TB) *fs.File {
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ctx := contexttest.Context(tb)
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dirent := fs.NewDirent(anon.NewInode(ctx), "test")
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return fs.NewFile(ctx, dirent, fs.FileFlags{}, &TestFileOperations{})
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}
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// Read just fails the request.
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func (*TestFileOperations) Read(context.Context, *fs.File, usermem.IOSequence, int64) (int64, error) {
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return 0, fmt.Errorf("Readv not implemented")
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}
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// Write just fails the request.
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func (*TestFileOperations) Write(context.Context, *fs.File, usermem.IOSequence, int64) (int64, error) {
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return 0, fmt.Errorf("Writev not implemented")
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}
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