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summary: Check that plugged and unplugged device nodes are available in devmode
details: |
This tests that a framebuffer device is accessible in devmode and makes
sure that other devices not included in the snap's plugged interfaces are
still accessible (ie, the cgroup is not in effect).
prepare: |
# Create framebuffer device node and give it some content we can verify
# the test snap can read.
if [ ! -e /dev/fb0 ]; then
mknod /dev/fb0 c 29 0
touch /dev/fb0.spread
fi
# Create a test char device so we can verify the test snap cannot read.
if [ ! -e /dev/test1 ]; then
mknod /dev/test1 c 29 1
touch /dev/test1.spread
fi
echo "Given a snap declaring a plug on framebuffer is installed in devmode"
"$TESTSTOOLS"/snaps-state install-local test-devmode-cgroup --devmode
restore: |
if [ -e /dev/fb0.spread ]; then
rm -f /dev/fb0 /dev/fb0.spread
fi
if [ -e /dev/test1.spread ]; then
rm -f /dev/test1 /dev/test1.spread
fi
execute: |
echo "And the framebuffer plug is connected"
snap connect test-devmode-cgroup:framebuffer
echo "the devmode snap can access the framebuffer"
test-devmode-cgroup.read-dev fb0 2>&1 | NOMATCH '(Permission denied|Operation not permitted)'
echo "the devmode snap can access other devices"
test-devmode-cgroup.read-dev test1 | NOMATCH '(Permission denied|Operation not permitted)'
echo "And the framebuffer plug is disconnected"
snap disconnect test-devmode-cgroup:framebuffer
echo "the devmode snap can access the framebuffer"
test-devmode-cgroup.read-dev fb0 2>&1 | NOMATCH '(Permission denied|Operation not permitted)'
echo "the devmode snap can access other devices"
test-devmode-cgroup.read-dev test1 | NOMATCH '(Permission denied|Operation not permitted)'
|
