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161 lines
3.5 KiB
Go
161 lines
3.5 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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"fmt"
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"math"
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"regexp"
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"syscall"
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"github.com/jacobsa/fuse/fuseops"
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. "github.com/jacobsa/ogletest"
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)
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// Sample output:
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//
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// Filesystem 1K-blocks Used Available Use% Mounted on
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// some_fuse_file_system 512 64 384 15% /tmp/sample_test001288095
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var gDfOutputRegexp = regexp.MustCompile(`^\S+\s+(\d+)\s+(\d+)\s+(\d+)\s+\d+%.*$`)
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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(0, stat.Bsize)
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ExpectEq(0, stat.Frsize)
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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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}
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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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IoSize: 1 << 16,
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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(canned.BlockSize, stat.Frsize)
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ExpectEq(canned.IoSize, stat.Bsize)
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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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}
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func (t *StatFSTest) BlockSizes() {
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var err error
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// Test a bunch of weird block sizes that OS X would be cranky about.
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blockSizes := []uint32{
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0,
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1,
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3,
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17,
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1<<20 - 1,
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1<<20 + 0,
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1<<20 + 1,
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math.MaxInt32,
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math.MaxInt32 + 1,
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math.MaxUint32,
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}
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for _, bs := range blockSizes {
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desc := fmt.Sprintf("block size %d", bs)
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// Set up.
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canned := fuseops.StatFSOp{
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BlockSize: bs,
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Blocks: 10,
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}
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t.fs.SetStatFSResponse(canned)
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// Check.
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var stat syscall.Statfs_t
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err = syscall.Statfs(t.Dir, &stat)
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AssertEq(nil, err)
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ExpectEq(bs, stat.Frsize, "%s", desc)
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}
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}
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func (t *StatFSTest) IoSizes() {
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var err error
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// Test a bunch of weird IO sizes that OS X would be cranky about.
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ioSizes := []uint32{
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0,
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1,
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3,
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17,
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1<<20 - 1,
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1<<20 + 0,
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1<<20 + 1,
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math.MaxInt32,
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math.MaxInt32 + 1,
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math.MaxUint32,
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}
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for _, bs := range ioSizes {
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desc := fmt.Sprintf("IO size %d", bs)
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// Set up.
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canned := fuseops.StatFSOp{
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IoSize: bs,
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Blocks: 10,
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}
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t.fs.SetStatFSResponse(canned)
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// Check.
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var stat syscall.Statfs_t
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err = syscall.Statfs(t.Dir, &stat)
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AssertEq(nil, err)
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ExpectEq(bs, stat.Bsize, "%s", desc)
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}
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}
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