func (r *FakeCommandRunner) Run(cmd *exec.Cmd) error {
r.RLock()
callbacks := r.commandCallbacks
r.RUnlock()
r.Lock()
r.executedCommands = append(r.executedCommands, cmd)
r.Unlock()
for spec, callback := range callbacks {
if spec.Matches(cmd) {
return callback(cmd)
}
}
r.RLock()
if r.process != nil {
cmd.Process = r.process
}
r.RUnlock()
return nil
}