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fstest: retry cleaning the integration test directory if necessary

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This commit is contained in:
Nick Craig-Wood 2018-04-09 19:26:27 +01:00
parent d5b2ec32f1
commit 4b5ff33125
1 changed files with 22 additions and 17 deletions
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39
fstest/run.go
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@ -107,12 +107,20 @@ func newRun() *Run {
return r
}
// dirsToRemove sorts by string length
type dirsToRemove []string
func (d dirsToRemove) Len() int { return len(d) }
func (d dirsToRemove) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
func (d dirsToRemove) Less(i, j int) bool { return len(d[i]) > len(d[j]) }
// run f(), retrying it until it returns with no error or the limit
// expires and it calls t.Fatalf
func retry(t *testing.T, what string, f func() error) {
var err error
for try := 1; try <= *ListRetries; try++ {
err = f()
if err == nil {
return
}
t.Logf("%s failed - try %d/%d: %v", what, try, *ListRetries, err)
time.Sleep(time.Second)
}
t.Logf("%s failed: %v", what, err)
}
// NewRun initialise the remote and local for testing and returns a
// run object. Call this from the tests.
@ -130,7 +138,7 @@ func NewRun(t *testing.T) *Run {
r = new(Run)
*r = *oneRun
r.cleanRemote = func() {
var toDelete dirsToRemove
var toDelete []string
err := walk.Walk(r.Fremote, "", true, -1, func(dirPath string, entries fs.DirEntries, err error) error {
if err != nil {
if err == fs.ErrorDirNotFound {
@ -141,10 +149,7 @@ func NewRun(t *testing.T) *Run {
for _, entry := range entries {
switch x := entry.(type) {
case fs.Object:
err = x.Remove()
if err != nil {
t.Errorf("Error removing file %q: %v", x.Remote(), err)
}
retry(t, fmt.Sprintf("removing file %q", x.Remote()), x.Remove)
case fs.Directory:
toDelete = append(toDelete, x.Remote())
}
@ -155,12 +160,12 @@ func NewRun(t *testing.T) *Run {
return
}
require.NoError(t, err)
sort.Sort(toDelete)
for _, dir := range toDelete {
err := r.Fremote.Rmdir(dir)
if err != nil {
t.Errorf("Error removing dir %q: %v", dir, err)
}
sort.Strings(toDelete)
for i := len(toDelete) - 1; i >= 0; i-- {
dir := toDelete[i]
retry(t, fmt.Sprintf("removing dir %q", dir), func() error {
return r.Fremote.Rmdir(dir)
})
}
// Check remote is empty
CheckListingWithPrecision(t, r.Fremote, []Item{}, []string{}, r.Fremote.Precision())