mirror of
https://github.com/project-zot/zot.git
synced 2024-12-16 21:56:37 -05:00
ce4924f841
Signed-off-by: Andrei Aaron <aaaron@luxoft.com>
106 lines
1.5 KiB
Go
106 lines
1.5 KiB
Go
//go:build dev
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// +build dev
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// This file should be linked only in **development** mode.
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package inject
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import (
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"net/http"
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"sync"
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zerr "zotregistry.dev/zot/errors"
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"zotregistry.dev/zot/pkg/log"
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)
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func Ok(ok bool) bool {
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if !ok {
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return ok
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}
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if injectedFailure() {
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return false
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}
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return true
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}
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func Error(err error) error {
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if err != nil {
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return err
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}
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if injectedFailure() {
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return zerr.ErrInjected
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}
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return nil
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}
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// Used to inject error status codes for coverage purposes.
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// -1 will be returned in case of successful failure injection.
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func ErrStatusCode(status int) int {
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if !injectedFailure() {
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if status == http.StatusAccepted || status == http.StatusCreated {
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return status
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}
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return 0
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}
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return -1
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}
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/**
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*
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* Failure injection infrastructure to cover hard-to-reach code paths.
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*
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**/
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type inject struct {
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skip int
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}
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//nolint:gochecknoglobals // only used by test code
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var injMap sync.Map
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func InjectFailure(skip int) bool {
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gid := log.GoroutineID()
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if gid < 0 {
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panic("invalid goroutine id")
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}
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if _, ok := injMap.Load(gid); ok {
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panic("prior incomplete fault injection")
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}
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injst := inject{skip: skip}
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injMap.Store(gid, injst)
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return true
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}
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func injectedFailure() bool {
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gid := log.GoroutineID()
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val, ok := injMap.Load(gid)
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if !ok {
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return false
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}
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injst, ok := val.(inject)
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if !ok {
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panic("invalid type")
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}
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if injst.skip == 0 {
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injMap.Delete(gid)
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return true
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}
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injst.skip--
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injMap.Store(gid, injst)
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return false
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}
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