github.com/anonymouse64/snapd@v0.0.0-20210824153203-04c4c42d842d/interfaces/apparmor/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 apparmor
    21  
    22  import (
    23  	"os"
    24  
    25  	"github.com/snapcore/snapd/snap"
    26  	"github.com/snapcore/snapd/testutil"
    27  )
    28  
    29  var (
    30  	NsProfile                       = nsProfile
    31  	ProfileGlobs                    = profileGlobs
    32  	SnapConfineFromSnapProfile      = snapConfineFromSnapProfile
    33  	LoadProfiles                    = loadProfiles
    34  	UnloadProfiles                  = unloadProfiles
    35  	MaybeSetNumberOfJobs            = maybeSetNumberOfJobs
    36  	DefaultCoreRuntimeTemplateRules = defaultCoreRuntimeTemplateRules
    37  	DefaultOtherBaseTemplateRules   = defaultOtherBaseTemplateRules
    38  )
    39  
    40  func MockRuntimeNumCPU(new func() int) (restore func()) {
    41  	old := runtimeNumCPU
    42  	runtimeNumCPU = new
    43  	return func() {
    44  		runtimeNumCPU = old
    45  	}
    46  }
    47  
    48  // MockIsRootWritableOverlay mocks the real implementation of osutil.IsRootWritableOverlay
    49  func MockIsRootWritableOverlay(new func() (string, error)) (restore func()) {
    50  	old := isRootWritableOverlay
    51  	isRootWritableOverlay = new
    52  	return func() {
    53  		isRootWritableOverlay = old
    54  	}
    55  }
    56  
    57  // MockProcSelfExe mocks the location of /proc/self/exe read by setupSnapConfineGeneratedPolicy.
    58  func MockProcSelfExe(symlink string) (restore func()) {
    59  	old := procSelfExe
    60  	procSelfExe = symlink
    61  	return func() {
    62  		os.Remove(procSelfExe)
    63  		procSelfExe = old
    64  	}
    65  }
    66  
    67  // MockProfilesPath mocks the file read by LoadedProfiles()
    68  func MockProfilesPath(t *testutil.BaseTest, profiles string) {
    69  	profilesPath = profiles
    70  	t.AddCleanup(func() {
    71  		profilesPath = realProfilesPath
    72  	})
    73  }
    74  
    75  // MockTemplate replaces apprmor template.
    76  //
    77  // NOTE: The real apparmor template is long. For testing it is convenient for
    78  // replace it with a shorter snippet.
    79  func MockTemplate(fakeTemplate string) (restore func()) {
    80  	orig := defaultCoreRuntimeTemplate
    81  	defaultCoreRuntimeTemplate = fakeTemplate
    82  	return func() { defaultCoreRuntimeTemplate = orig }
    83  }
    84  
    85  // MockClassicTemplate replaces the classic apprmor template.
    86  func MockClassicTemplate(fakeTemplate string) (restore func()) {
    87  	orig := classicTemplate
    88  	classicTemplate = fakeTemplate
    89  	return func() { classicTemplate = orig }
    90  }
    91  
    92  // SetSpecScope sets the scope of a given specification
    93  func SetSpecScope(spec *Specification, securityTags []string) (restore func()) {
    94  	return spec.setScope(securityTags)
    95  }
    96  
    97  func MockKernelFeatures(f func() ([]string, error)) (resture func()) {
    98  	old := kernelFeatures
    99  	kernelFeatures = f
   100  	return func() {
   101  		kernelFeatures = old
   102  	}
   103  }
   104  
   105  func MockParserFeatures(f func() ([]string, error)) (resture func()) {
   106  	old := parserFeatures
   107  	parserFeatures = f
   108  	return func() {
   109  		parserFeatures = old
   110  	}
   111  }
   112  
   113  func (b *Backend) SetupSnapConfineReexec(info *snap.Info) error {
   114  	return b.setupSnapConfineReexec(info)
   115  }
   116  
   117  func (s *Specification) SnippetsForTag(tag string) []string {
   118  	return s.snippetsForTag(tag)
   119  }