164 lines
4.3 KiB
Go
164 lines
4.3 KiB
Go
// Copyright 2015 Google Inc. All Rights Reserved.
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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 statfs_test
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import (
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"path"
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"path/filepath"
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"syscall"
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"testing"
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"github.com/jacobsa/fuse/fuseops"
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"github.com/jacobsa/fuse/fuseutil"
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"github.com/jacobsa/fuse/samples"
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"github.com/jacobsa/fuse/samples/statfs"
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. "github.com/jacobsa/oglematchers"
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. "github.com/jacobsa/ogletest"
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)
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func TestStatFS(t *testing.T) { RunTests(t) }
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////////////////////////////////////////////////////////////////////////
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// Helpers
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////////////////////////////////////////////////////////////////////////
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func convertName(in []int8) (s string) {
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var tmp []byte
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for _, v := range in {
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if v == 0 {
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break
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}
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tmp = append(tmp, byte(v))
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}
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s = string(tmp)
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return
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}
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////////////////////////////////////////////////////////////////////////
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// Boilerplate
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////////////////////////////////////////////////////////////////////////
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type StatFSTest struct {
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samples.SampleTest
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fs statfs.FS
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// t.Dir, with symlinks resolved and redundant path components removed.
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canonicalDir string
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}
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var _ SetUpInterface = &StatFSTest{}
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var _ TearDownInterface = &StatFSTest{}
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func init() { RegisterTestSuite(&StatFSTest{}) }
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func (t *StatFSTest) SetUp(ti *TestInfo) {
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var err error
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// Writeback caching can ruin our measurement of the write sizes the kernel
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// decides to give us, since it causes write acking to race against writes
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// being issued from the client.
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t.MountConfig.DisableWritebackCaching = true
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// Create the file system.
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t.fs = statfs.New()
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t.Server = fuseutil.NewFileSystemServer(t.fs)
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// Mount it.
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t.SampleTest.SetUp(ti)
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// Canonicalize the mount point.
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t.canonicalDir, err = filepath.EvalSymlinks(t.Dir)
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AssertEq(nil, err)
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t.canonicalDir = path.Clean(t.canonicalDir)
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}
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////////////////////////////////////////////////////////////////////////
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// Tests
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////////////////////////////////////////////////////////////////////////
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func (t *StatFSTest) Syscall_ZeroValues() {
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var err error
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var stat syscall.Statfs_t
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// Call without configuring a canned response, meaning the OS will see the
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// zero value for each field. The assertions below act as documentation for
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// the OS's behavior in this case.
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err = syscall.Statfs(t.Dir, &stat)
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AssertEq(nil, err)
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ExpectEq(4096, stat.Bsize)
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ExpectEq(65536, stat.Iosize)
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ExpectEq(0, stat.Blocks)
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ExpectEq(0, stat.Bfree)
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ExpectEq(0, stat.Bavail)
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ExpectEq(0, stat.Files)
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ExpectEq(0, stat.Ffree)
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ExpectEq("osxfusefs", convertName(stat.Fstypename[:]))
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ExpectEq(t.canonicalDir, convertName(stat.Mntonname[:]))
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ExpectThat(
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convertName(stat.Mntfromname[:]),
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MatchesRegexp(`mount_osxfusefs@osxfuse\d+`))
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}
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func (t *StatFSTest) Syscall_NonZeroValues() {
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var err error
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var stat syscall.Statfs_t
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// Set up the canned response.
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canned := fuseops.StatFSOp{
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BlockSize: 1 << 15,
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Blocks: 1<<51 + 3,
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BlocksFree: 1<<43 + 5,
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BlocksAvailable: 1<<41 + 7,
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Inodes: 1<<59 + 11,
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InodesFree: 1<<58 + 13,
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}
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t.fs.SetStatFSResponse(canned)
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// Stat.
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err = syscall.Statfs(t.Dir, &stat)
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AssertEq(nil, err)
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ExpectEq(4096, stat.Bsize) // OS X seems to always make this 4096.
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ExpectEq(canned.BlockSize, stat.Iosize)
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ExpectEq(canned.Blocks, stat.Blocks)
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ExpectEq(canned.BlocksFree, stat.Bfree)
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ExpectEq(canned.BlocksAvailable, stat.Bavail)
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ExpectEq(canned.Inodes, stat.Files)
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ExpectEq(canned.InodesFree, stat.Ffree)
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ExpectEq("osxfusefs", convertName(stat.Fstypename[:]))
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ExpectEq(t.canonicalDir, convertName(stat.Mntonname[:]))
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ExpectThat(
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convertName(stat.Mntfromname[:]),
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MatchesRegexp(`mount_osxfusefs@osxfuse\d+`))
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}
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func (t *StatFSTest) CapacityAndFreeSpace() {
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AssertTrue(false, "TODO: Use df")
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}
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func (t *StatFSTest) WriteSize() {
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AssertTrue(false, "TODO")
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}
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func (t *StatFSTest) UnsupportedBlockSizes() {
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AssertTrue(false, "TODO")
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}
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