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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 fusetesting
- import (
- "fmt"
- "os"
- "reflect"
- "syscall"
- "time"
- "github.com/jacobsa/oglematchers"
- )
- // Match os.FileInfo values that specify an mtime equal to the given time.
- func MtimeIs(expected time.Time) oglematchers.Matcher {
- return oglematchers.NewMatcher(
- func(c interface{}) error { return mtimeIsWithin(c, expected, 0) },
- fmt.Sprintf("mtime is %v", expected))
- }
- // Like MtimeIs, but allows for a tolerance.
- func MtimeIsWithin(expected time.Time, d time.Duration) oglematchers.Matcher {
- return oglematchers.NewMatcher(
- func(c interface{}) error { return mtimeIsWithin(c, expected, d) },
- fmt.Sprintf("mtime is within %v of %v", d, expected))
- }
- func mtimeIsWithin(c interface{}, expected time.Time, d time.Duration) error {
- fi, ok := c.(os.FileInfo)
- if !ok {
- return fmt.Errorf("which is of type %v", reflect.TypeOf(c))
- }
- // Check ModTime().
- diff := fi.ModTime().Sub(expected)
- absDiff := diff
- if absDiff < 0 {
- absDiff = -absDiff
- }
- if !(absDiff < d) {
- return fmt.Errorf("which has mtime %v, off by %v", fi.ModTime(), diff)
- }
- return nil
- }
- // Match os.FileInfo values that specify a file birth time within the supplied
- // radius of the given time. On platforms where there is no birth time
- // available, match all os.FileInfo values.
- func BirthtimeIsWithin(
- expected time.Time,
- d time.Duration) oglematchers.Matcher {
- return oglematchers.NewMatcher(
- func(c interface{}) error { return birthtimeIsWithin(c, expected, d) },
- fmt.Sprintf("birthtime is within %v of %v", d, expected))
- }
- func birthtimeIsWithin(
- c interface{},
- expected time.Time,
- d time.Duration) error {
- fi, ok := c.(os.FileInfo)
- if !ok {
- return fmt.Errorf("which is of type %v", reflect.TypeOf(c))
- }
- t, ok := extractBirthtime(fi.Sys())
- if !ok {
- return nil
- }
- diff := t.Sub(expected)
- absDiff := diff
- if absDiff < 0 {
- absDiff = -absDiff
- }
- if !(absDiff < d) {
- return fmt.Errorf("which has birth time %v, off by %v", t, diff)
- }
- return nil
- }
- // Extract time information from the supplied file info. Panic on platforms
- // where this is not possible.
- func GetTimes(fi os.FileInfo) (atime, ctime, mtime time.Time) {
- return getTimes(fi.Sys().(*syscall.Stat_t))
- }
- // Match os.FileInfo values that specify a number of links equal to the given
- // number. On platforms where there is no nlink field available, match all
- // os.FileInfo values.
- func NlinkIs(expected uint64) oglematchers.Matcher {
- return oglematchers.NewMatcher(
- func(c interface{}) error { return nlinkIs(c, expected) },
- fmt.Sprintf("nlink is %v", expected))
- }
- func nlinkIs(c interface{}, expected uint64) error {
- fi, ok := c.(os.FileInfo)
- if !ok {
- return fmt.Errorf("which is of type %v", reflect.TypeOf(c))
- }
- if actual, ok := extractNlink(fi.Sys()); ok && actual != expected {
- return fmt.Errorf("which has nlink == %v", actual)
- }
- return nil
- }
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