. "$BST_LIB"
# eject 2.1.5 (meta-oe recipes-support) — the removable-media ejector and its
# companion volname. Neither busybox nor toybox ships an eject applet on this
# image (CONFIG_EJECT is not set in poky's busybox defconfig), so a bare `eject`
# already is this port and the update-alternatives registration at priority 100
# is uncontested.
#
# THE SHAPE OF THIS SUITE IS DECIDED BY ONE FACT: this kernel has NO BLOCK LAYER
# (CONFIG_BLOCK is not set) — no /proc/partitions, no /sys/block, no
# block-special node anywhere in /dev. eject accepts a device only if stat(2)
# says S_ISBLK, so on this machine NO argument can ever reach the ioctls. That
# is a property of a browser machine whose only storage is the virtiofs cloud
# rootfs, not a defect. So the suite covers, for real, everything upstream of
# the ioctl — the option parser, the compiled-in default device, the /etc/mtab
# and /etc/fstab readers, the block-device gate — and gates the device cases on
# a RUNTIME probe, so they run the real assertion the day a block device exists
# instead of reporting a stale skip.
#
# volname is the half that DOES run end to end here: it never checks S_ISBLK, it
# just opens its argument, seeks to 32808 and reads 32 bytes — the ISO9660
# primary-volume-descriptor volume-identifier field — so a synthetic file
# exercises the whole program on this target.

# An installed eject.eject with no /usr/bin/eject means update-alternatives did
# not run. That is a failure, not an absence, so say so rather than let
# `require` turn it into a quiet skip.
if ! command -v eject >/dev/null 2>&1 && [ -x /usr/bin/eject.eject ]; then
	bst_notok eject/alternative "eject.eject is installed but /usr/bin/eject does not resolve"
	exit 0
fi
require eject eject/present

tmp=${TMPDIR:-/tmp}/bst-eject.$$
out=$tmp.out; reg=$tmp.reg; iso=$tmp.iso

# Runtime probe for the block layer — the gate for the device cases below.
blkdev=""
for d in /dev/*; do
	if [ -b "$d" ]; then blkdev="$d"; break; fi
done

# ---------------------------------------------------------------- identity ---
check_out eject/version      "eject version 2.1.5 by Jeff Tranter" eject -V
check_out eject/version-long "eject version 2.1.5"                 eject --version

# -h exits 0 here: meta-oe's eject-2.1.5-error-return.patch drops upstream's
# exit(1) from usage(), so --help is a success path and not an error one.
check_rc  eject/help-rc      0 sh -c "eject -h > '$out' 2>&1"
check_out eject/help-banner  "Eject version 2.1.5 by Jeff Tranter" cat "$out"
check_out eject/help-usage   "eject [-vnrsfqpm] [<name>]"          cat "$out"
check_out eject/help-default "If omitted, name defaults to \`cdrom'." cat "$out"
check_out eject/help-longopt "-T --traytoggle"                     cat "$out"

# update-alternatives owns both names; the real binaries carry the .eject suffix.
check_out eject/alternative         "eject.eject"   readlink /usr/bin/eject
check_out eject/volname-alternative "volname.eject" readlink /usr/bin/volname

# -d reports the device compiled into the binary without opening anything, so it
# is the one device-related case that succeeds on a machine with no devices.
check_rc  eject/default-rc   0 sh -c "eject -d > '$out' 2>&1"
check_out eject/default-name "default device: \`cdrom'" cat "$out"

# ---------------------------------------------------------- option parsing ---
check_rc  eject/badopt-rc  1 sh -c "eject -Z > '$out' 2>&1"
check_out eject/badopt-msg "invalid option" cat "$out"

check_rc  eject/missing-arg-rc  1 sh -c "eject -a > '$out' 2>&1"
check_out eject/missing-arg-msg "option requires an argument" cat "$out"

# -a takes on|off|1|0 and validates the word itself, which is eject's own check
# rather than getopt's — a different code path from the two above.
check_rc  eject/auto-badarg-rc  1 sh -c "eject -a bogus /dev/nosuchdev0 > '$out' 2>&1"
check_out eject/auto-badarg-msg "invalid argument to --auto/-a option" cat "$out"

# ------------------------------------------------------- device resolution ---
# A name that resolves to nothing at all: FindDevice tries the name, /dev/<name>,
# /media/<name> and /mnt/<name>, exhausts them, and reports the original name.
check_rc  eject/enoent-rc  1 sh -c "eject -n /dev/nosuchdev0 > '$out' 2>&1"
check_out eject/enoent-msg "unable to find or open device for: \`/dev/nosuchdev0'" cat "$out"

# With no name at all it falls back to the compiled-in default, which proves the
# default is actually USED and not merely printed by -d.
check_rc  eject/nodefaultdev-rc  1 sh -c "eject > '$out' 2>&1"
check_out eject/nodefaultdev-msg "unable to find or open device for: \`cdrom'" cat "$out"

# An existing path that is not block-special is rejected by the S_ISBLK gate,
# with a different diagnostic from the not-found one above. This is the case
# that will change the day this kernel grows a block layer.
: > "$reg"
check_rc  eject/notblock-rc  1 sh -c "eject -n '$reg' > '$out' 2>&1"
check_out eject/notblock-msg "as device name but it is no block device" cat "$out"

# Every action option funnels through the same resolution, so one of them stands
# for the rest: none can reach an ioctl on this machine.
check_rc  eject/listspeed-rc  1 sh -c "eject -X /dev/nosuchdev0 > '$out' 2>&1"
check_out eject/listspeed-msg "unable to find or open device for" cat "$out"

# ------------------------------------------- the mount-table readers DO run ---
# Given a MOUNT POINT, eject looks it up in the mount table and reports the
# device mounted there. Deriving the expected device name from /proc/mounts at
# runtime makes this a comparison against the file eject read, not a constant.
procdev=$(awk '$2 == "/proc" { print $1; exit }' /proc/mounts 2>/dev/null)

if [ -n "$procdev" ]; then
	# -p reads /proc/mounts directly.
	sh -c "eject -n -p /proc > '$out' 2>&1"
	check_out eject/procmounts-dev "tried to use \`$procdev' as device name" cat "$out"

	# -v states the resolution it made — the direct evidence that the parse ran
	# and matched, rather than that the name happened to fail somewhere.
	sh -c "eject -n -p -v /proc > '$out' 2>&1"
	check_out eject/procmounts-verbose "\`$procdev' is mounted at \`/proc'" cat "$out"

	# ...and WITHOUT -p it reads /etc/mtab, which on this image is a symlink to
	# ../proc/mounts. Same answer through a different path, so this case is what
	# would catch that symlink going missing.
	sh -c "eject -n -v /proc > '$out' 2>&1"
	check_out eject/mtab-verbose "\`$procdev' is mounted at \`/proc'" cat "$out"
else
	bst_notok eject/procmounts-dev "no /proc entry in /proc/mounts — cannot exercise the mount-table reader"
fi

# /etc/mtab must be the kernel's mount table for the default (no -p) path above
# to work at all. Both spellings a distro uses are accepted; what is asserted is
# that it is a link INTO /proc and not a stale regular file.
mtablink=$(readlink /etc/mtab 2>/dev/null)
case "$mtablink" in
	*proc/mounts|*proc/self/mounts) bst_ok eject/mtab-symlink ;;
	*) bst_notok eject/mtab-symlink "/etc/mtab is not a link to the kernel mount table: '$mtablink'" ;;
esac

# For a path that is neither mounted nor in /etc/fstab, -v reports both negative
# answers — which is how the fstab reader (MountableDevice) is covered at all,
# since nothing here is mountable.
sh -c "eject -n -v '$reg' > '$out' 2>&1"
check_out eject/not-mounted     "is not mounted"      cat "$out"
check_out eject/not-mountpoint  "is not a mount point" cat "$out"

# ------------------------------------------------------------------ volname ---
# volname does no S_ISBLK check: it opens the path, seeks to 32808 and reads 32
# bytes. 32808 is sector 16 (the ISO9660 primary volume descriptor) + 40, the
# volume-identifier field — so this file is a real PVD volume-id placement even
# though it is not a whole filesystem. The decoy at offset 0 is what makes this
# an assertion about the OFFSET and not merely about reading the file.
label='BRINTOS-WASM32-SELFTEST-VOLUME  '
decoy='DECOY-AT-OFFSET-ZERO-NOT-THE-VOLID'
{ printf '%s' "$decoy"; dd if=/dev/zero bs=32774 count=1 2>/dev/null; printf '%s' "$label"; } > "$iso"

isosize=$(wc -c < "$iso" 2>/dev/null | tr -d ' ')
if [ "$isosize" != "32840" ]; then
	bst_notok volname/fixture "synthetic ISO fixture is $isosize bytes, want 32840"
else
	bst_ok volname/fixture
	vout=$(volname "$iso" 2>&1); vrc=$?
	check_eq  volname/iso-rc 0 "$vrc"
	check_out volname/iso-label "BRINTOS-WASM32-SELFTEST-VOLUME" printf '%s\n' "$vout"
	case "$vout" in
		*DECOY*) bst_notok volname/iso-offset "read offset 0, not 32808: $(_bst_1line "$vout")" ;;
		*)       bst_ok volname/iso-offset ;;
	esac
fi

check_rc  volname/enoent-rc  1 sh -c "volname /dev/nosuchdev0 > '$out' 2>&1"
check_out volname/enoent-msg "No such file or directory" cat "$out"

check_rc  volname/usage-rc  1 sh -c "volname a b c > '$out' 2>&1"
check_out volname/usage-msg "usage: volname [<device-file>]" cat "$out"

# ------------------------------------------------- block-layer-gated cases ---
# These run the real assertion the moment a block device exists.
if [ -n "$blkdev" ]; then
	# Do NOT pin the reported name to the argument: eject walks the symlink
	# chain (SymLink(), up to ld hops) and reports the name it resolved to, so
	# /dev/dm-0 comes back as /dev/mapper/<vg>-<lv>. What is asserted is that a
	# block-special argument reaches the -n report at all and exits 0.
	bout=$(eject -n "$blkdev" 2>&1); brc=$?
	check_eq  eject/blockdev-rc 0 "$brc"
	check_out eject/blockdev-noop "device is \`" printf '%s\n' "$bout"
else
	bst_skip eject/blockdev-noop "no block layer on this kernel (CONFIG_BLOCK not set): no /proc/partitions, no /sys/block, no block-special node in /dev — eject's S_ISBLK gate can never be satisfied here"
	bst_skip eject/blockdev-rc   "same: eject cannot reach an ioctl without a block-special device"
fi

# eject unmounts a mounted device by forking /bin/umount before ejecting it.
# That path needs a device that is BOTH block-special and mounted, so it is
# unreachable here for the same reason, and is reported rather than omitted.
bst_skip eject/unmount-fork "eject's fork(2)+exec umount path needs a mounted BLOCK device; this kernel has no block layer, so it cannot be reached from this image"

rm -f "$out" "$reg" "$iso" 2>/dev/null