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test-50-dissect: add test for long reference name

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This commit is contained in:
Yu Watanabe 2023-03-13 23:36:32 +09:00
parent e551954def
commit 91ea97356c
1 changed files with 21 additions and 1 deletions
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22
test/units/testsuite-50.sh
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@ -447,8 +447,28 @@ fi
# Detach by loopback device
systemd-dissect --detach "$LOOP"
# Test long reference name.
# Note, sizeof_field(struct loop_info64, lo_file_name) == 64,
# and --loop-ref accepts upto 63 characters, and udev creates symlink
# based on the name when it has upto _62_ characters.
name="$(for (( i = 0; i < 62; i++ )); do echo -n 'x'; done)"
LOOP="$(systemd-dissect --attach --loop-ref="$name" "${image}.raw")"
udevadm trigger -w "$LOOP"
# Check if the /dev/loop/by-ref/$name symlink really references the right device
test "/dev/loop/by-ref/$name" -ef "$LOOP"
# Detach by the /dev/loop/by-ref symlink
systemd-dissect --detach "/dev/loop/by-ref/$name"
name="$(for (( i = 0; i < 63; i++ )); do echo -n 'x'; done)"
LOOP="$(systemd-dissect --attach --loop-ref="$name" "${image}.raw")"
udevadm trigger -w "$LOOP"
# Check if the /dev/loop/by-ref/$name symlink does not exist
test ! -e "/dev/loop/by-ref/$name"
# Detach by backing inode
systemd-dissect --attach --loop-ref=waldo "${image}.raw"
systemd-dissect --detach "${image}.raw"
(! systemd-dissect --detach "${image}.raw")