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rkt_mount_test.go
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/
rkt_mount_test.go
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// Copyright 2016 The rkt Authors
//
// 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 main
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/rkt/rkt/tests/testutils"
)
func TestMountSymlink(t *testing.T) {
tmpDir := mustTempDir("rkt-mount-test-")
defer os.RemoveAll(tmpDir)
mountSrcFile := filepath.Join(tmpDir, "hello")
if err := ioutil.WriteFile(mountSrcFile, []byte("world"), 0666); err != nil {
t.Fatalf("Cannot write file: %v", err)
}
image := patchTestACI("rkt-test-mount-symlink.aci", "--exec=/inspect --read-file")
defer os.Remove(image)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
tests := []struct {
targetFile string
actualFile string
expectedLine string
exitCode int
}{
// '/dir1/link_abs_dir2' links to '/dir2'.
{
"/dir1/link_abs_dir2/foo",
"/dir2/foo",
"world",
0,
},
// '/dir1/link_rel_dir2' links to '/dir2'.
{
"/dir1/link_rel_dir2/bar",
"/dir2/bar",
"world",
0,
},
// '/dir1/../dir1/.//link_rel_dir2' links to '/dir2'.
{
"/dir1/../dir1/.//link_rel_dir2/foo",
"/dir2/foo",
"world",
0,
},
{
"/dir1/../../../foo",
"/foo",
"world",
0,
},
{
"/dir1/link_abs_dotdot_dir2/foo",
"/dir2/foo",
"world",
0,
},
{
"/dir1/../../../newdir/foo",
"/newdir/foo",
"world",
0,
},
{
"/dir1/link_rel_dir2/newdir/foo",
"/dir2/newdir/foo",
"world",
0,
},
{
"/dir1/link_abs_dir2/newdir/foo",
"/dir2/newdir/foo",
"world",
0,
},
{
"/dir1/link_abs_notexists/newdir1/newdir2/foo",
"/notexists/newdir1/newdir2/foo",
"world",
0,
},
{
"/dir1/link_abs_root/newdir1/newdir2/foo",
"/newdir1/newdir2/foo",
"world",
0,
},
{
"../../../../../../../../../../../../../../../foo",
"/foo",
"world",
0,
},
}
for _, tt := range tests {
paramMount := fmt.Sprintf(
"--volume=test,kind=host,source=%s --mount=volume=test,target=%s",
mountSrcFile, tt.targetFile,
)
// Read the actual file.
rktCmd := fmt.Sprintf(
"%s --insecure-options=image --debug run %s --set-env=FILE=%s %s",
ctx.Cmd(), paramMount, tt.actualFile, image,
)
t.Logf("%s\n", rktCmd)
if tt.exitCode == 0 {
runRktAndCheckOutput(t, rktCmd, tt.expectedLine, false)
} else {
child := spawnOrFail(t, rktCmd)
result, out, err := expectRegexWithOutput(child, tt.expectedLine)
if err != nil || len(result) != 1 {
t.Errorf("%q regex must be found one time, Error: %v\nOutput: %v", tt.expectedLine, err, out)
}
waitOrFail(t, child, tt.exitCode)
}
}
}