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- // Copyright 2021 Google Inc. All rights reserved.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- package build
- import (
- "os"
- "testing"
- )
- func TestMain(m *testing.M) {
- // set src dir of sandbox
- sandboxConfig.srcDir = "/my/src/dir"
- os.Exit(m.Run())
- }
- func TestMountFlagsSrcDir(t *testing.T) {
- testCases := []struct {
- srcDirIsRO bool
- expectedSrcDirFlag string
- }{
- {
- srcDirIsRO: false,
- expectedSrcDirFlag: "-B",
- },
- {
- srcDirIsRO: true,
- expectedSrcDirFlag: "-R",
- },
- }
- for _, testCase := range testCases {
- c := testCmd()
- c.config.sandboxConfig.SetSrcDirIsRO(testCase.srcDirIsRO)
- c.wrapSandbox()
- if !isExpectedMountFlag(c.Args, sandboxConfig.srcDir, testCase.expectedSrcDirFlag) {
- t.Error("Mount flag of srcDir is not correct")
- }
- }
- }
- func TestMountFlagsSrcDirRWAllowlist(t *testing.T) {
- testCases := []struct {
- srcDirRWAllowlist []string
- }{
- {
- srcDirRWAllowlist: []string{},
- },
- {
- srcDirRWAllowlist: []string{"my/path"},
- },
- {
- srcDirRWAllowlist: []string{"my/path1", "my/path2"},
- },
- }
- for _, testCase := range testCases {
- c := testCmd()
- c.config.sandboxConfig.SetSrcDirIsRO(true)
- c.config.sandboxConfig.SetSrcDirRWAllowlist(testCase.srcDirRWAllowlist)
- c.wrapSandbox()
- for _, allowlistPath := range testCase.srcDirRWAllowlist {
- if !isExpectedMountFlag(c.Args, allowlistPath, "-B") {
- t.Error("Mount flag of srcDirRWAllowlist is not correct, expect -B")
- }
- }
- }
- }
- // utils for setting up test
- func testConfig() Config {
- // create a minimal testConfig
- env := Environment([]string{})
- sandboxConfig := SandboxConfig{}
- return Config{&configImpl{environ: &env,
- sandboxConfig: &sandboxConfig}}
- }
- func testCmd() *Cmd {
- return Command(testContext(), testConfig(), "sandbox_test", "path/to/nsjail")
- }
- func isExpectedMountFlag(cmdArgs []string, dirName string, expectedFlag string) bool {
- indexOfSrcDir := index(cmdArgs, dirName)
- return cmdArgs[indexOfSrcDir-1] == expectedFlag
- }
- func index(arr []string, target string) int {
- for idx, element := range arr {
- if element == target {
- return idx
- }
- }
- panic("element could not be located in input array")
- }
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