github.com/Lephar/snapd@v0.0.0-20210825215435-c7fba9cef4d2/cmd/snap-recovery-chooser/export_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2020 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 main
    21  
    22  import (
    23  	"io"
    24  	"log/syslog"
    25  	"os/exec"
    26  )
    27  
    28  var (
    29  	OutputForUI           = outputForUI
    30  	RunUI                 = runUI
    31  	Chooser               = chooser
    32  	LoggerWithSyslogMaybe = loggerWithSyslogMaybe
    33  )
    34  
    35  func MockStdStreams(stdout, stderr io.Writer) (restore func()) {
    36  	oldStdout, oldStderr := Stdout, Stderr
    37  	Stdout, Stderr = stdout, stderr
    38  	return func() {
    39  		Stdout, Stderr = oldStdout, oldStderr
    40  	}
    41  }
    42  
    43  func MockChooserTool(f func() (*exec.Cmd, error)) (restore func()) {
    44  	oldTool := chooserTool
    45  	chooserTool = f
    46  	return func() {
    47  		chooserTool = oldTool
    48  	}
    49  }
    50  
    51  func MockDefaultMarkerFile(p string) (restore func()) {
    52  	old := defaultMarkerFile
    53  	defaultMarkerFile = p
    54  	return func() {
    55  		defaultMarkerFile = old
    56  	}
    57  }
    58  
    59  func MockSyslogNew(f func(syslog.Priority, string) (io.Writer, error)) (restore func()) {
    60  	oldSyslogNew := syslogNew
    61  	syslogNew = f
    62  	return func() {
    63  		syslogNew = oldSyslogNew
    64  	}
    65  }