summaryrefslogtreecommitdiff
path: root/test/system/065-cp.bats
blob: 0fcc437d4e8cae07a2db71780e439d65714bdb7c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
#!/usr/bin/env bats   -*- bats -*-
#
# Tests for 'podman cp'
#
# ASSUMPTION FOR ALL THESE TESTS: /tmp in the container starts off empty
#

load helpers

@test "podman cp file from host to container" {
    srcdir=$PODMAN_TMPDIR/cp-test-file-host-to-ctr
    mkdir -p $srcdir
    local -a randomcontent=(
        random-0-$(random_string 10)
        random-1-$(random_string 15)
        random-2-$(random_string 20)
    )
    echo "${randomcontent[0]}" > $srcdir/hostfile0
    echo "${randomcontent[1]}" > $srcdir/hostfile1
    echo "${randomcontent[2]}" > $srcdir/hostfile2
    mkdir -p $srcdir/subdir
    echo "${randomcontent[2]}" > $srcdir/subdir/dotfile.

    run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
    run_podman exec cpcontainer mkdir /srv/subdir

    # format is: <id> | <destination arg to cp> | <full dest path> | <test name>
    # where:
    #    id        is 0-2, one of the random strings/files
    #    dest arg  is the right-hand argument to 'podman cp' (may be implicit)
    #    dest path is the full explicit path we expect to see
    #    test name is a short description of what we're testing here
    tests="
0 | /                    | /hostfile0            | copy to root
0 | /anotherbase.txt     | /anotherbase.txt      | copy to root, new name
0 | /tmp                 | /tmp/hostfile0        | copy to /tmp
1 | /tmp/                | /tmp/hostfile1        | copy to /tmp/
2 | /tmp/.               | /tmp/hostfile2        | copy to /tmp/.
0 | /tmp/hostfile2       | /tmp/hostfile2        | overwrite previous copy
0 | /tmp/anotherbase.txt | /tmp/anotherbase.txt  | copy to /tmp, new name
0 | .                    | /srv/hostfile0        | copy to workdir (rel path), new name
1 | ./                   | /srv/hostfile1        | copy to workdir (rel path), new name
0 | anotherbase.txt      | /srv/anotherbase.txt  | copy to workdir (rel path), new name
0 | subdir               | /srv/subdir/hostfile0 | copy to workdir/subdir
"

    # Copy one of the files into container, exec+cat, confirm the file
    # is there and matches what we expect
    while read id dest dest_fullname description; do
        run_podman cp $srcdir/hostfile$id cpcontainer:$dest
        run_podman exec cpcontainer cat $dest_fullname
        is "$output" "${randomcontent[$id]}" "$description (cp -> ctr:$dest)"
    done < <(parse_table "$tests")

    # Dots are special for dirs not files.
    run_podman cp $srcdir/subdir/dotfile. cpcontainer:/tmp
    run_podman exec cpcontainer cat /tmp/dotfile.
    is "$output" "${randomcontent[2]}" "$description (cp -> ctr:$dest)"

    # Host path does not exist.
    run_podman 125 cp $srcdir/IdoNotExist cpcontainer:/tmp
    is "$output" 'Error: ".*/IdoNotExist" could not be found on the host' \
       "copy nonexistent host path"

    # Container (parent) path does not exist.
    run_podman 125 cp $srcdir/hostfile0 cpcontainer:/IdoNotExist/
    is "$output" 'Error: "/IdoNotExist/" could not be found on container cpcontainer: No such file or directory' \
       "copy into nonexistent path in container"

    run_podman rm -f cpcontainer
}


@test "podman cp file from container to host" {
    srcdir=$PODMAN_TMPDIR/cp-test-file-ctr-to-host
    mkdir -p $srcdir

    # Create 3 files with random content in the container.
    local -a randomcontent=(
        random-0-$(random_string 10)
        random-1-$(random_string 15)
        random-2-$(random_string 20)
    )
    run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
    run_podman exec cpcontainer sh -c "echo ${randomcontent[0]} > /tmp/containerfile"
    run_podman exec cpcontainer sh -c "echo ${randomcontent[0]} > /tmp/dotfile."
    run_podman exec cpcontainer sh -c "echo ${randomcontent[1]} > /srv/containerfile1"
    run_podman exec cpcontainer sh -c "mkdir /srv/subdir; echo ${randomcontent[2]} > /srv/subdir/containerfile2"

    # format is: <id> | <source arg to cp> | <destination arg (appended to $srcdir) to cp> | <full dest path (appended to $srcdir)> | <test name>
    tests="
0 | /tmp/containerfile    |          | /containerfile  | copy to srcdir/
0 | /tmp/dotfile.         |          | /dotfile.       | copy to srcdir/
0 | /tmp/containerfile    | /        | /containerfile  | copy to srcdir/
0 | /tmp/containerfile    | /.       | /containerfile  | copy to srcdir/.
0 | /tmp/containerfile    | /newfile | /newfile        | copy to srcdir/newfile
1 | containerfile1        | /        | /containerfile1 | copy from workdir (rel path) to srcdir
2 | subdir/containerfile2 | /        | /containerfile2 | copy from workdir/subdir (rel path) to srcdir
"

    # Copy one of the files to the host, cat, confirm the file
    # is there and matches what we expect
    while read id src dest dest_fullname description; do
        # dest may be "''" for empty table cells
        if [[ $dest == "''" ]];then
            unset dest
        fi
        run_podman cp cpcontainer:$src "$srcdir$dest"
        run cat $srcdir$dest_fullname
        is "$output" "${randomcontent[$id]}" "$description (cp ctr:$src to \$srcdir$dest)"
        rm $srcdir/$dest_fullname
    done < <(parse_table "$tests")

    run_podman rm -f cpcontainer
}


@test "podman cp dir from host to container" {
    dirname=dir-test
    srcdir=$PODMAN_TMPDIR/$dirname
    mkdir -p $srcdir
    local -a randomcontent=(
        random-0-$(random_string 10)
        random-1-$(random_string 15)
    )
    echo "${randomcontent[0]}" > $srcdir/hostfile0
    echo "${randomcontent[1]}" > $srcdir/hostfile1

    # "." and "dir/." will copy the contents, so make sure that a dir ending
    # with dot is treated correctly.
    mkdir -p $srcdir.
    cp $srcdir/* $srcdir./

    run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
    run_podman exec cpcontainer mkdir /srv/subdir

    # format is: <source arg to cp (appended to srcdir)> | <destination arg to cp> | <full dest path> | <test name>
    tests="
    | /        | /dir-test             | copy to root
 .  | /        | /dir-test.            | copy dotdir to root
 /  | /tmp     | /tmp/dir-test         | copy to tmp
 /. | /usr/    | /usr/                 | copy contents of dir to usr/
    | .        | /srv/dir-test         | copy to workdir (rel path)
    | subdir/. | /srv/subdir/dir-test | copy to workdir subdir (rel path)
"

    while read src dest dest_fullname description; do
        # src may be "''" for empty table cells
        if [[ $src == "''" ]];then
            unset src
        fi
        run_podman cp $srcdir$src cpcontainer:$dest
        run_podman exec cpcontainer ls $dest_fullname
        run_podman exec cpcontainer cat $dest_fullname/hostfile0
        is "$output" "${randomcontent[0]}" "$description (cp -> ctr:$dest)"
        run_podman exec cpcontainer cat $dest_fullname/hostfile1
        is "$output" "${randomcontent[1]}" "$description (cp -> ctr:$dest)"
    done < <(parse_table "$tests")

    run_podman rm -f cpcontainer
}


@test "podman cp dir from container to host" {
    srcdir=$PODMAN_TMPDIR/dir-test
    mkdir -p $srcdir

    run_podman run -d --name cpcontainer --workdir=/srv $IMAGE sleep infinity
    run_podman exec cpcontainer sh -c 'mkdir /srv/subdir; echo "This first file is on the container" > /srv/subdir/containerfile1'
    run_podman exec cpcontainer sh -c 'echo "This second file is on the container as well" > /srv/subdir/containerfile2'
    # "." and "dir/." will copy the contents, so make sure that a dir ending
    # with dot is treated correctly.
    run_podman exec cpcontainer sh -c 'mkdir /tmp/subdir.; cp /srv/subdir/* /tmp/subdir./'

    run_podman cp cpcontainer:/srv $srcdir
    run cat $srcdir/srv/subdir/containerfile1
    is "$output" "This first file is on the container"
    run cat $srcdir/srv/subdir/containerfile2
    is "$output" "This second file is on the container as well"
    rm -rf $srcdir/srv/subdir

    run_podman cp cpcontainer:/srv/. $srcdir
    run ls $srcdir/subdir
    run cat $srcdir/subdir/containerfile1
    is "$output" "This first file is on the container"
    run cat $srcdir/subdir/containerfile2
    is "$output" "This second file is on the container as well"
    rm -rf $srcdir/subdir

    run_podman cp cpcontainer:/srv/subdir/. $srcdir
    run cat $srcdir/containerfile1
    is "$output" "This first file is on the container"
    run cat $srcdir/containerfile2
    is "$output" "This second file is on the container as well"
    rm -rf $srcdir/subdir

    run_podman cp cpcontainer:/tmp/subdir. $srcdir
    run cat $srcdir/subdir./containerfile1
    is "$output" "This first file is on the container"
    run cat $srcdir/subdir./containerfile2
    is "$output" "This second file is on the container as well"
    rm -rf $srcdir/subdir.

    run_podman rm -f cpcontainer
}


@test "podman cp file from host to container volume" {
    srcdir=$PODMAN_TMPDIR/cp-test-volume
    mkdir -p $srcdir
    echo "This file should be in volume2" > $srcdir/hostfile
    volume1=$(random_string 20)
    volume2=$(random_string 20)

    run_podman volume create $volume1
    run_podman volume inspect $volume1 --format "{{.Mountpoint}}"
    volume1_mount="$output"
    run_podman volume create $volume2
    run_podman volume inspect $volume2 --format "{{.Mountpoint}}"
    volume2_mount="$output"

    # Create a container using the volume.  Note that copying on not-running
    # containers is allowed, so Podman has to analyze the container paths and
    # check if they are hitting a volume, and eventually resolve to the path on
    # the *host*.
    # This test is extra tricky, as volume2 is mounted into a sub-directory of
    # volume1.  Podman must copy the file into volume2 and not volume1.
    run_podman create --name cpcontainer -v $volume1:/tmp/volume -v $volume2:/tmp/volume/sub-volume $IMAGE

    run_podman cp $srcdir/hostfile cpcontainer:/tmp/volume/sub-volume

    run cat $volume2_mount/hostfile
    is "$output" "This file should be in volume2"

    # Volume 1 must be empty.
    run ls $volume1_mount
    is "$output" ""

    run_podman rm -f cpcontainer
    run_podman volume rm $volume1 $volume2
}


@test "podman cp file from host to container mount" {
    srcdir=$PODMAN_TMPDIR/cp-test-mount-src
    mountdir=$PODMAN_TMPDIR/cp-test-mount
    mkdir -p $srcdir $mountdir
    echo "This file should be in the mount" > $srcdir/hostfile

    volume=$(random_string 20)
    run_podman volume create $volume

    # Make it a bit more complex and put the mount on a volume.
    run_podman create --name cpcontainer -v $volume:/tmp/volume -v $mountdir:/tmp/volume/mount $IMAGE

    run_podman cp $srcdir/hostfile cpcontainer:/tmp/volume/mount

    run cat $mountdir/hostfile
    is "$output" "This file should be in the mount"

    run_podman rm -f cpcontainer
    run_podman volume rm $volume
}


# Create two random-name random-content files in /tmp in the container
# podman-cp them into the host using '/tmp/*', i.e. asking podman to
# perform wildcard expansion in the container. We should get both
# files copied into the host.
@test "podman cp * - wildcard copy multiple files from container to host" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir

    rand_filename1=$(random_string 20)
    rand_content1=$(random_string 50)
    rand_filename2=$(random_string 20)
    rand_content2=$(random_string 50)

    run_podman run --name cpcontainer $IMAGE sh -c \
               "echo $rand_content1 >/tmp/$rand_filename1;
                echo $rand_content2 >/tmp/$rand_filename2"

    # cp no longer supports wildcarding
    run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir

    run_podman rm cpcontainer
}


# Create a file on the host; make a symlink in the container pointing
# into host-only space. Try to podman-cp that symlink. It should fail.
@test "podman cp - will not recognize symlink pointing into host space" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "this file is on the host" >$srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile /tmp/badlink"
    # This should fail because, from the container's perspective, the symlink
    # points to a nonexistent file
    run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir/

    # FIXME: this might not be the exactly correct error message
    is "$output" 'Error: "/tmp/\*" could not be found on container.*'

    # make sure there are no files in dstdir
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}


# Issue #3829 - like the above, but with a level of indirection in the
# wildcard expansion: create a file on the host; create a symlink in
# the container named 'file1' pointing to this file; then another symlink
# in the container pointing to 'file*' (file star). Try to podman-cp
# this invalid double symlink. It must fail.
@test "podman cp - will not expand globs in host space (#3829)" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "This file is on the host" > $srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile file1;ln -s file\* copyme"
    run_podman 125 cp cpcontainer:copyme $dstdir

    is "$output" 'Error: "copyme*" could not be found on container.*'

    # make sure there are no files in dstdir
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}


# Another symlink into host space, this one named '*' (star). cp should fail.
@test "podman cp - will not expand wildcard" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir
    echo "This file lives on the host" > $srcdir/hostfile

    run_podman run --name cpcontainer $IMAGE \
               sh -c "ln -s $srcdir/hostfile /tmp/\*"
    run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir

    is "$output" 'Error: "/tmp/\*" could not be found on container.*'

    # dstdir must be empty
    is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"

    run_podman rm cpcontainer
}


# THIS IS EXTREMELY WEIRD. Podman expands symlinks in weird ways.
@test "podman cp into container: weird symlink expansion" {
    srcdir=$PODMAN_TMPDIR/cp-test-in
    dstdir=$PODMAN_TMPDIR/cp-test-out
    mkdir -p $srcdir $dstdir

    rand_filename1=$(random_string 20)
    rand_content1=$(random_string 50)
    echo $rand_content1 > $srcdir/$rand_filename1

    rand_filename2=$(random_string 20)
    rand_content2=$(random_string 50)
    echo $rand_content2 > $srcdir/$rand_filename2

    rand_filename3=$(random_string 20)
    rand_content3=$(random_string 50)
    echo $rand_content3 > $srcdir/$rand_filename3

    # Create tmp subdirectories in container, most with an invalid 'x' symlink
    # Keep container running so we can exec into it.
    run_podman run -d --name cpcontainer $IMAGE \
               sh -c "mkdir /tmp/d1;ln -s /tmp/nonesuch1 /tmp/d1/x;
                      mkdir /tmp/d2;ln -s /tmp/nonesuch2 /tmp/d2/x;
                      mkdir /tmp/d3;
                      trap 'exit 0' 15;while :;do sleep 0.5;done"

    # Copy file from host into container, into a file named 'x'
    # Note that the second has a trailing slash, implying a directory.
    # Since that destination directory doesn't exist, the cp will fail
    run_podman cp --pause=false $srcdir/$rand_filename1 cpcontainer:/tmp/d1/x
    is "$output" "" "output from podman cp 1"

    run_podman 125 cp --pause=false $srcdir/$rand_filename2 cpcontainer:/tmp/d2/x/
    is "$output" 'Error: "/tmp/d2/x/" could not be found on container cpcontainer: No such file or directory' "cp will not create nonexistent destination directory"

    run_podman cp --pause=false $srcdir/$rand_filename3 cpcontainer:/tmp/d3/x
    is "$output" "" "output from podman cp 3"

    # Read back.
    # In the first case, podman actually creates the file nonesuch1 (i.e.
    # podman expands 'x -> nonesuch1' and, instead of overwriting x,
    # creates an actual file).
    run_podman exec cpcontainer cat /tmp/nonesuch1
    is "$output" "$rand_content1" "cp creates destination file"


    # cp into nonexistent directory should not mkdir nonesuch2 directory
    run_podman 1 exec cpcontainer test -e /tmp/nonesuch2

    # In the third case, podman (correctly imo) creates a file named 'x'
    run_podman exec cpcontainer cat /tmp/d3/x
    is "$output" "$rand_content3" "cp creates file named x"

    run_podman rm -f cpcontainer
}


# rhbz1741718 : file copied into container:/var/lib/foo appears as /foo
# (docker only, never seems to have affected podman. Make sure it never does).
@test "podman cp into a subdirectory matching GraphRoot" {
    # Create tempfile with random name and content
    srcdir=$PODMAN_TMPDIR/cp-test-in
    mkdir -p $srcdir
    rand_filename=$(random_string 20)
    rand_content=$(random_string 50)
    echo $rand_content > $srcdir/$rand_filename
    chmod 644 $srcdir/$rand_filename

    # Determine path to podman storage (eg /var/lib/c/s, or $HOME/.local/...)
    run_podman info --format '{{.Store.GraphRoot}}'
    graphroot=$output

    # Create that directory in the container, and sleep (to keep container
    # running, so we can exec into it). The trap/while is so podman-rm will
    # run quickly instead of taking 10 seconds.
    run_podman run -d --name cpcontainer $IMAGE sh -c \
               "mkdir -p $graphroot; trap 'exit 0' 15;while :;do sleep 0.5;done"

    # Copy from host into container.
    run_podman cp --pause=false $srcdir/$rand_filename cpcontainer:$graphroot/$rand_filename

    # ls, and confirm it's there.
    run_podman exec cpcontainer ls -l $graphroot/$rand_filename
    is "$output" "-rw-r--r-- .* 1 .* root .* 51 .* $graphroot/$rand_filename" \
       "File is copied into container in the correct (full) path"

    # Confirm it has the expected content (this is unlikely to ever fail)
    run_podman exec cpcontainer cat $graphroot/$rand_filename
    is "$output" "$rand_content" "Contents of file copied into container"

    run_podman rm -f cpcontainer
}


@test "podman cp from stdin to container" {
    # Create tempfile with random name and content
    srcdir=$PODMAN_TMPDIR/cp-test-stdin
    mkdir -p $srcdir
    rand_filename=$(random_string 20)
    rand_content=$(random_string 50)
    echo $rand_content > $srcdir/$rand_filename
    chmod 644 $srcdir/$rand_filename

    # Now tar it up!
    tar_file=$PODMAN_TMPDIR/archive.tar.gz
    tar -zvcf $tar_file $srcdir

    run_podman run -d --name cpcontainer $IMAGE sleep infinity

    # NOTE: podman is supposed to auto-detect the gzip compression and
    # decompress automatically.
    #
    # "-" will evaluate to "/dev/stdin" when used a source.
    run_podman cp - cpcontainer:/tmp < $tar_file
    run_podman exec cpcontainer cat /tmp/$srcdir/$rand_filename
    is "$output" "$rand_content"
    run_podman exec cpcontainer rm -rf /tmp/$srcdir

    # Now for "/dev/stdin".
    run_podman cp /dev/stdin cpcontainer:/tmp < $tar_file
    run_podman exec cpcontainer cat /tmp/$srcdir/$rand_filename
    is "$output" "$rand_content"

    # Error checks below ...

    # Input stream must be a (compressed) tar archive.
    run_podman 125 cp - cpcontainer:/tmp < $srcdir/$rand_filename
    is "$output" "Error: source must be a (compressed) tar archive when copying from stdin"

    # Destination must be a directory (on an existing file).
    run_podman exec cpcontainer touch /tmp/file.txt
    run_podman 125 cp /dev/stdin cpcontainer:/tmp/file.txt < $tar_file
    is "$output" 'Error: destination must be a directory when copying from stdin'

    # Destination must be a directory (on an absent path).
    run_podman 125 cp /dev/stdin cpcontainer:/tmp/IdoNotExist < $tar_file
    is "$output" 'Error: destination must be a directory when copying from stdin'

    run_podman rm -f cpcontainer
}


@test "podman cp from container to stdout" {
    srcdir=$PODMAN_TMPDIR/cp-test-stdout
    mkdir -p $srcdir
    rand_content=$(random_string 50)

    run_podman run -d --name cpcontainer $IMAGE sleep infinity

    run_podman exec cpcontainer sh -c "echo '$rand_content' > /tmp/file.txt"
    run_podman exec cpcontainer touch /tmp/empty.txt

    # Copying from stdout will always compress.  So let's copy the previously
    # created file from the container via stdout, untar the archive and make
    # sure the file exists with the expected content.
    #
    # NOTE that we can't use run_podman because that uses the BATS 'run'
    # function which redirects stdout and stderr. Here we need to guarantee
    # that podman's stdout is a pipe, not any other form of redirection.

    # Copy file.
    $PODMAN cp cpcontainer:/tmp/file.txt - > $srcdir/stdout.tar
    if [ $? -ne 0 ]; then
        die "Command failed: podman cp ... - | cat"
    fi

    tar xvf $srcdir/stdout.tar -C $srcdir
    run cat $srcdir/file.txt
    is "$output" "$rand_content"
    run 1 ls $srcdir/empty.txt
    rm -f $srcdir/*

    # Copy directory.
    $PODMAN cp cpcontainer:/tmp - > $srcdir/stdout.tar
    if [ $? -ne 0 ]; then
        die "Command failed: podman cp ... - | cat : $output"
    fi

    tar xvf $srcdir/stdout.tar -C $srcdir
    run cat $srcdir/tmp/file.txt
    is "$output" "$rand_content"
    run cat $srcdir/tmp/empty.txt
    is "$output" ""

    run_podman rm -f cpcontainer
}

function teardown() {
    # In case any test fails, clean up the container we left behind
    run_podman rm -f cpcontainer
    basic_teardown
}

# vim: filetype=sh