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- // Copyright 2015 Google Inc. All Rights Reserved.
- //
- // 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 statfs_test
- import (
- "fmt"
- "math"
- "regexp"
- "syscall"
- "github.com/jacobsa/fuse/fuseops"
- . "github.com/jacobsa/ogletest"
- )
- // Sample output:
- //
- // Filesystem 1K-blocks Used Available Use% Mounted on
- // some_fuse_file_system 512 64 384 15% /tmp/sample_test001288095
- //
- var gDfOutputRegexp = regexp.MustCompile(`^\S+\s+(\d+)\s+(\d+)\s+(\d+)\s+\d+%.*$`)
- ////////////////////////////////////////////////////////////////////////
- // Tests
- ////////////////////////////////////////////////////////////////////////
- func (t *StatFSTest) Syscall_ZeroValues() {
- var err error
- var stat syscall.Statfs_t
- // Call without configuring a canned response, meaning the OS will see the
- // zero value for each field. The assertions below act as documentation for
- // the OS's behavior in this case.
- err = syscall.Statfs(t.Dir, &stat)
- AssertEq(nil, err)
- ExpectEq(0, stat.Bsize)
- ExpectEq(0, stat.Frsize)
- ExpectEq(0, stat.Blocks)
- ExpectEq(0, stat.Bfree)
- ExpectEq(0, stat.Bavail)
- ExpectEq(0, stat.Files)
- ExpectEq(0, stat.Ffree)
- }
- func (t *StatFSTest) Syscall_NonZeroValues() {
- var err error
- var stat syscall.Statfs_t
- // Set up the canned response.
- canned := fuseops.StatFSOp{
- BlockSize: 1 << 15,
- IoSize: 1 << 16,
- Blocks: 1<<51 + 3,
- BlocksFree: 1<<43 + 5,
- BlocksAvailable: 1<<41 + 7,
- Inodes: 1<<59 + 11,
- InodesFree: 1<<58 + 13,
- }
- t.fs.SetStatFSResponse(canned)
- // Stat.
- err = syscall.Statfs(t.Dir, &stat)
- AssertEq(nil, err)
- ExpectEq(canned.BlockSize, stat.Frsize)
- ExpectEq(canned.IoSize, stat.Bsize)
- ExpectEq(canned.Blocks, stat.Blocks)
- ExpectEq(canned.BlocksFree, stat.Bfree)
- ExpectEq(canned.BlocksAvailable, stat.Bavail)
- ExpectEq(canned.Inodes, stat.Files)
- ExpectEq(canned.InodesFree, stat.Ffree)
- }
- func (t *StatFSTest) BlockSizes() {
- var err error
- // Test a bunch of weird block sizes that OS X would be cranky about.
- blockSizes := []uint32{
- 0,
- 1,
- 3,
- 17,
- 1<<20 - 1,
- 1<<20 + 0,
- 1<<20 + 1,
- math.MaxInt32,
- math.MaxInt32 + 1,
- math.MaxUint32,
- }
- for _, bs := range blockSizes {
- desc := fmt.Sprintf("block size %d", bs)
- // Set up.
- canned := fuseops.StatFSOp{
- BlockSize: bs,
- Blocks: 10,
- }
- t.fs.SetStatFSResponse(canned)
- // Check.
- var stat syscall.Statfs_t
- err = syscall.Statfs(t.Dir, &stat)
- AssertEq(nil, err)
- ExpectEq(bs, stat.Frsize, "%s", desc)
- }
- }
- func (t *StatFSTest) IoSizes() {
- var err error
- // Test a bunch of weird IO sizes that OS X would be cranky about.
- ioSizes := []uint32{
- 0,
- 1,
- 3,
- 17,
- 1<<20 - 1,
- 1<<20 + 0,
- 1<<20 + 1,
- math.MaxInt32,
- math.MaxInt32 + 1,
- math.MaxUint32,
- }
- for _, bs := range ioSizes {
- desc := fmt.Sprintf("IO size %d", bs)
- // Set up.
- canned := fuseops.StatFSOp{
- IoSize: bs,
- Blocks: 10,
- }
- t.fs.SetStatFSResponse(canned)
- // Check.
- var stat syscall.Statfs_t
- err = syscall.Statfs(t.Dir, &stat)
- AssertEq(nil, err)
- ExpectEq(bs, stat.Bsize, "%s", desc)
- }
- }
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