notmuch/test/T320-emacs-large-search-buffer.sh
Tomi Ollila 02a2eeb427 test: make script exit (1) if it "fails" to source (.) a file
The files (test) scripts source (with builtin command `.`) provides
information which the scripts depend, and without the `source` to
succeed allowing script to continue may lead to dangerous situations
(e.g. rm -rf "${undefined_variable}"/*).

At the end of all source (.) lines construct ' || exit 1' was added;
In our case the script script will exit if it cannot find (or read) the
file to be sourced. Additionally script would also exits if the last
command of the sourced file exited nonzero.
2015-08-07 21:56:39 +02:00

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Executable file

#!/usr/bin/env bash
test_description="Emacs with large search results buffer"
. ./test-lib.sh || exit 1
x=xxxxxxxxxx # 10
x=$x$x$x$x$x$x$x$x$x$x # 100
x=$x$x$x$x$x$x$x$x$x # 900
# We generate a long subject here (over 900 bytes) so that the emacs
# search results get large quickly. With 30 such messages we should
# cross several 4kB page boundaries and see the bug.
n=30
for i in $(seq 1 $n); do
# Roughly 100B2 KiB per message. That is, we need two messages in order to
# exceed the typical size of the pipe buffer (4 KiB on commodity systems).
generate_message '[subject]="$x $i of $n"'
done
notmuch new > /dev/null
test_begin_subtest "Ensure that emacs doesn't drop results"
notmuch search '*' > EXPECTED
sed -i -e 's/^thread:[0-9a-f]* //' -e 's/;//' -e 's/xx*/[BLOB]/' EXPECTED
echo 'End of search results.' >> EXPECTED
test_emacs '(notmuch-search "*")
(notmuch-test-wait)
(test-output)'
sed -i -e s', *, ,g' -e 's/xxx*/[BLOB]/g' OUTPUT
test_expect_equal_file OUTPUT EXPECTED
test_done