github.com/hugh712/snapd@v0.0.0-20200910133618-1a99902bd583/overlord/hookstate/ctlcmd/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 ctlcmd
    21  
    22  import (
    23  	"fmt"
    24  
    25  	"github.com/snapcore/snapd/overlord/hookstate"
    26  	"github.com/snapcore/snapd/overlord/servicestate"
    27  	"github.com/snapcore/snapd/overlord/state"
    28  	"github.com/snapcore/snapd/snap"
    29  )
    30  
    31  var AttributesTask = attributesTask
    32  
    33  func MockServicestateControlFunc(f func(*state.State, []*snap.AppInfo, *servicestate.Instruction, *hookstate.Context) ([]*state.TaskSet, error)) (restore func()) {
    34  	old := servicestateControl
    35  	servicestateControl = f
    36  	return func() { servicestateControl = old }
    37  }
    38  
    39  func AddMockCommand(name string) *MockCommand {
    40  	return addMockCmd(name, false)
    41  }
    42  
    43  func AddHiddenMockCommand(name string) *MockCommand {
    44  	return addMockCmd(name, true)
    45  }
    46  
    47  func addMockCmd(name string, hidden bool) *MockCommand {
    48  	mockCommand := NewMockCommand()
    49  	cmd := addCommand(name, "", "", func() command { return mockCommand })
    50  	cmd.hidden = hidden
    51  	return mockCommand
    52  }
    53  
    54  func RemoveCommand(name string) {
    55  	delete(commands, name)
    56  }
    57  
    58  type MockCommand struct {
    59  	baseCommand
    60  
    61  	ExecuteError bool
    62  	FakeStdout   string
    63  	FakeStderr   string
    64  
    65  	Args []string
    66  }
    67  
    68  func NewMockCommand() *MockCommand {
    69  	return &MockCommand{
    70  		ExecuteError: false,
    71  	}
    72  }
    73  
    74  func (c *MockCommand) Execute(args []string) error {
    75  	c.Args = args
    76  
    77  	if c.FakeStdout != "" {
    78  		c.printf(c.FakeStdout)
    79  	}
    80  
    81  	if c.FakeStderr != "" {
    82  		c.errorf(c.FakeStderr)
    83  	}
    84  
    85  	if c.ExecuteError {
    86  		return fmt.Errorf("failed at user request")
    87  	}
    88  
    89  	return nil
    90  }