tests: add a simple test for the mountinfo parsing logic

test/meson.build

@@ -174,6 +174,9 @@ test_data_files = '''
         testsuite.target
         timers.target
         unstoppable.service
+        test-umount/empty.mountinfo
+        test-umount/garbled.mountinfo
+        test-umount/rhbug-1554943.mountinfo
 '''.split()
 
 if conf.get('ENABLE_RESOLVE') == 1

test/test-umount/garbled.mountinfo

@@ -0,0 +1,5 @@
+18 63 1000999:110999 / /sys rw,nosuid,nodev,noexec,relatime shared:2 - sysfs sysfs rw
+44 44
+asdfasdf asdfasdf asdf asdfasdfasdf
+asdfsadfasd
+95 63 8:1 / /one-good-entry rw,relatime shared:34 - ext4 /dev/sda1 rw,data=ordered

test/test-umount/rhbug-1554943.mountinfo

@@ -0,0 +1,47 @@
+18 63 0:18 / /sys rw,nosuid,nodev,noexec,relatime shared:2 - sysfs sysfs rw
+19 63 0:4 / /proc rw,nosuid,nodev,noexec,relatime shared:23 - proc proc rw
+20 63 0:6 / /dev rw,nosuid shared:19 - devtmpfs devtmpfs rw,size=3549752k,nr_inodes=887438,mode=755
+21 18 0:7 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:3 - securityfs securityfs rw
+22 20 0:19 / /dev/shm rw,nosuid,nodev shared:20 - tmpfs tmpfs rw
+23 20 0:20 / /dev/pts rw,nosuid,noexec,relatime shared:21 - devpts devpts rw,gid=5,mode=620,ptmxmode=000
+24 63 0:21 / /run rw,nosuid,nodev shared:22 - tmpfs tmpfs rw,mode=755
+25 18 0:22 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:4 - tmpfs tmpfs ro,mode=755
+26 25 0:23 / /sys/fs/cgroup/unified rw,nosuid,nodev,noexec,relatime shared:5 - cgroup2 cgroup rw
+27 25 0:24 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:6 - cgroup cgroup rw,xattr,name=systemd
+28 18 0:25 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:17 - pstore pstore rw
+29 25 0:26 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:7 - cgroup cgroup rw,cpu,cpuacct
+30 25 0:27 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:8 - cgroup cgroup rw,perf_event
+31 25 0:28 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:9 - cgroup cgroup rw,freezer
+32 25 0:29 / /sys/fs/cgroup/hugetlb rw,nosuid,nodev,noexec,relatime shared:10 - cgroup cgroup rw,hugetlb
+33 25 0:30 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:11 - cgroup cgroup rw,cpuset
+34 25 0:31 / /sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:12 - cgroup cgroup rw,net_cls,net_prio
+35 25 0:32 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:13 - cgroup cgroup rw,memory
+36 25 0:33 / /sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:14 - cgroup cgroup rw,pids
+37 25 0:34 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:15 - cgroup cgroup rw,blkio
+38 25 0:35 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:16 - cgroup cgroup rw,devices
+61 18 0:36 / /sys/kernel/config rw,relatime shared:18 - configfs configfs rw
+63 0 8:17 / / rw,relatime shared:1 - ext4 /dev/sdb1 rw,lazytime,commit=30,inode_readahead_blks=16
+39 18 0:8 / /sys/kernel/debug rw,relatime shared:24 - debugfs debugfs rw
+40 20 0:37 / /dev/hugepages rw,relatime shared:25 - hugetlbfs hugetlbfs rw,pagesize=2M
+41 19 0:38 / /proc/sys/fs/binfmt_misc rw,relatime shared:26 - autofs systemd-1 rw,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14807
+42 20 0:17 / /dev/mqueue rw,relatime shared:27 - mqueue mqueue rw
+43 63 0:39 / /var/www/sessiondata rw,nosuid,noexec,noatime shared:28 - tmpfs tmpfs rw,size=4194304k
+75 63 0:40 / /usr/share/mysql-test/var rw,noatime shared:29 - tmpfs tmpfs rw,size=4194304k,mode=750,uid=27,gid=27
+77 63 8:33 / /Volumes/dune rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+79 63 8:33 /builduser /home/builduser rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+81 77 0:41 / /Volumes/dune/mysql_data/autotest rw,nosuid,noexec,noatime shared:31 - tmpfs tmpfs rw,size=4194304k,mode=700,uid=27,gid=27
+83 63 8:33 /.tmp /var/tmp rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+85 77 0:42 / /Volumes/dune/www-servers/cms/cms/temp rw,nosuid,noexec,noatime shared:32 - tmpfs tmpfs rw,size=4194304k,mode=770,uid=48,gid=48
+87 77 8:33 /buildserver/autotest /Volumes/dune/www-servers/autotest rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+89 63 8:33 /.tmp /tmp rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+91 77 0:43 / /Volumes/dune/www-servers/cms/cms/logs rw,nosuid,noexec,noatime shared:33 - tmpfs tmpfs rw,size=4194304k,mode=770,uid=48,gid=48
+93 63 8:33 /www-servers/cms /usr/local/sftp-homes/flow/cms rw,relatime shared:30 - ext4 /dev/sdc1 rw,lazytime,commit=30,inode_readahead_blks=16
+95 63 8:1 / /boot rw,relatime shared:34 - ext4 /dev/sda1 rw,data=ordered
+97 79 0:44 / /home/builduser/rpmbuild/PHP-PGO/logs rw,nosuid,noatime shared:35 - tmpfs tmpfs rw,size=4194304k,mode=770,uid=5000,gid=5000
+98 77 0:44 / /Volumes/dune/builduser/rpmbuild/PHP-PGO/logs rw,nosuid,noatime shared:35 - tmpfs tmpfs rw,size=4194304k,mode=770,uid=5000,gid=5000
+101 63 9:0 / /mnt/raid10 rw,relatime shared:36 - ext4 /dev/md0 rw,lazytime,commit=30,stripe=128,inode_readahead_blks=16
+558 24 0:52 / /run/user/48 rw,nosuid,nodev,relatime shared:83 - tmpfs tmpfs rw,size=711220k,mode=700,uid=48,gid=48
+588 24 0:53 / /run/user/5000 rw,nosuid,nodev,relatime shared:135 - tmpfs tmpfs rw,size=711220k,mode=700,uid=5000,gid=5000
+613 24 0:54 / /run/user/4503 rw,nosuid,nodev,relatime shared:85 - tmpfs tmpfs rw,size=711220k,mode=700,uid=4503,gid=4503
+653 24 0:45 / /run/user/4500 rw,nosuid,nodev,relatime shared:87 - tmpfs tmpfs rw,size=711220k,mode=700,uid=4500,gid=48
+699 24 0:55 / /run/user/0 rw,nosuid,nodev,relatime shared:89 - tmpfs tmpfs rw,size=711220k,mode=700