github.com/david-imola/snapd@v0.0.0-20210611180407-2de8ddeece6d/overlord/snapstate/backend/export_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package backend
    21  
    22  import (
    23  	"os/exec"
    24  )
    25  
    26  var (
    27  	AddMountUnit    = addMountUnit
    28  	RemoveMountUnit = removeMountUnit
    29  )
    30  
    31  func MockUpdateFontconfigCaches(f func() error) (restore func()) {
    32  	oldUpdateFontconfigCaches := updateFontconfigCaches
    33  	updateFontconfigCaches = f
    34  	return func() {
    35  		updateFontconfigCaches = oldUpdateFontconfigCaches
    36  	}
    37  }
    38  
    39  func MockCommandFromSystemSnap(f func(string, ...string) (*exec.Cmd, error)) (restore func()) {
    40  	old := commandFromSystemSnap
    41  	commandFromSystemSnap = f
    42  	return func() {
    43  		commandFromSystemSnap = old
    44  	}
    45  }