Isolated darwin-specific tests.
Aaron Jacobs
parent
69c97c577e
commit
811100635f
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@ -0,0 +1,153 @@
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// 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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"syscall"
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"github.com/jacobsa/fuse/fuseops"
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. "github.com/jacobsa/oglematchers"
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. "github.com/jacobsa/ogletest"
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)
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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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// 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(canned.BlockSize, stat.Bsize)
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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) UnsupportedBlockSizes() {
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var err error
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// Test a bunch of block sizes that the OS doesn't support faithfully,
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// checking what it transforms them too.
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testCases := []struct {
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fsBlockSize uint32
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expectedBsize uint32
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expectedIosize uint32
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}{
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0: {0, 4096, 65536},
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1: {1, 512, 512},
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2: {3, 512, 512},
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3: {511, 512, 512},
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4: {513, 1024, 1024},
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5: {1023, 1024, 1024},
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6: {4095, 4096, 4096},
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7: {1<<17 - 1, 1 << 17, 131072},
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8: {1<<17 + 1, 1 << 17, 1 << 18},
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9: {1<<18 + 1, 1 << 17, 1 << 19},
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10: {1<<19 + 1, 1 << 17, 1 << 20},
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11: {1<<20 + 1, 1 << 17, 1 << 20},
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12: {1 << 21, 1 << 17, 1 << 20},
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13: {1 << 30, 1 << 17, 1 << 20},
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}
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for i, tc := range testCases {
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desc := fmt.Sprintf("Case %d: block size %d", i, tc.fsBlockSize)
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// Set up.
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canned := fuseops.StatFSOp{
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BlockSize: tc.fsBlockSize,
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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(tc.expectedBsize, stat.Bsize, "%s", desc)
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ExpectEq(tc.expectedIosize, stat.Iosize, "%s", desc)
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}
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}
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@ -23,14 +23,12 @@ import (
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"path/filepath"
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"regexp"
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"strconv"
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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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@ -40,20 +38,6 @@ func TestStatFS(t *testing.T) { RunTests(t) }
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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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// Ask `df` for statistics about the file system's capacity and free space,
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// useful for checking that our reading of statfs(2) output matches the
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// system's. The output is not guaranteed to have resolution greater than 2^10
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@ -157,66 +141,6 @@ func (t *StatFSTest) SetUp(ti *TestInfo) {
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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(canned.BlockSize, stat.Bsize)
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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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canned := fuseops.StatFSOp{
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Blocks: 1024,
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@ -268,50 +192,3 @@ func (t *StatFSTest) WriteSize() {
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// small chunks of data.
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ExpectEq(1<<20, t.fs.MostRecentWriteSize())
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}
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func (t *StatFSTest) UnsupportedBlockSizes() {
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var err error
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// Test a bunch of block sizes that the OS doesn't support faithfully,
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// checking what it transforms them too.
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testCases := []struct {
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fsBlockSize uint32
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expectedBsize uint32
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expectedIosize uint32
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}{
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0: {0, 4096, 65536},
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1: {1, 512, 512},
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2: {3, 512, 512},
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3: {511, 512, 512},
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4: {513, 1024, 1024},
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5: {1023, 1024, 1024},
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6: {4095, 4096, 4096},
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7: {1<<17 - 1, 1 << 17, 131072},
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8: {1<<17 + 1, 1 << 17, 1 << 18},
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9: {1<<18 + 1, 1 << 17, 1 << 19},
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10: {1<<19 + 1, 1 << 17, 1 << 20},
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11: {1<<20 + 1, 1 << 17, 1 << 20},
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12: {1 << 21, 1 << 17, 1 << 20},
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13: {1 << 30, 1 << 17, 1 << 20},
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}
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for i, tc := range testCases {
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desc := fmt.Sprintf("Case %d: block size %d", i, tc.fsBlockSize)
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// Set up.
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canned := fuseops.StatFSOp{
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BlockSize: tc.fsBlockSize,
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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(tc.expectedBsize, stat.Bsize, "%s", desc)
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ExpectEq(tc.expectedIosize, stat.Iosize, "%s", desc)
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}
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}
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