Add a loader test.

api/types/errtimeout.go

@@ -0,0 +1,36 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package types
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+type errTimeOut struct {
+	duration time.Duration
+	cmd      string
+}
+
+func NewErrTimeOut(d time.Duration, c string) errTimeOut {
+	return errTimeOut{duration: d, cmd: c}
+}
+
+func (e errTimeOut) Error() string {
+	return fmt.Sprintf("hit %s timeout running '%s'", e.duration, e.cmd)
+}
+
+func IsErrTimeout(err error) bool {
+	if err == nil {
+		return false
+	}
+	_, ok := err.(errTimeOut)
+	if ok {
+		return true
+	}
+	_, ok = errors.Cause(err).(errTimeOut)
+	return ok
+}