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# Testing that head_ready is used in sequence#is_ready.
#
# We setup a sequence to start playing a source s, then stop playing the
# sequence, make s unavailable and start playing the sequence again.
# At this point the sequence should end its track and cleanup s *before*
# becoming unavailable.
#
# Pitfalls when cooking up this test:
# - Does not work with a track insensitive switch to "instantly kill" the
# source, because the switch makes sure to stay ready until the end of
# track.
# - Also does not work simply with a sequence underneath a fallible output,
# because such an output will stop as soon as its source is not ready.
%include "test.liq"
# Create a fallible source. We use the experimental operator source.dynamic()
# which is bit fragile for a test.
flag = ref true
add_timeout(1.,{ flag:=false ; (-1.) })
on = sine()
off = fail()
s = source.dynamic({ if !flag then [on] else [off] end })
test = sequence([ s, fail() ])
def check()
if source.is_up(s) then
test.fail()
else
test.pass()
end
shutdown()
end
output.dummy(fallback([test,on_track(fun(_)->check(),sine())]))
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