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4414a15002
All of our git-protocol tests rely on invoking the client
and having it make a request of a server. That gives a nice
real-world test of how the two behave together, but it
doesn't leave any room for testing how a server might react
to _other_ clients.
Let's add a few test helper functions which can be used to
manually conduct a git-protocol conversation with a remote
git-daemon:
1. To connect to a remote git-daemon, we need something
like "netcat". But not everybody will have netcat. And
even if they do, the behavior with respect to
half-duplex shutdowns is not portable (openbsd netcat
has "-N", with others you must rely on "-q 1", which is
racy).
Here we provide a "fake_nc" that is capable of doing
a client-side netcat, with sane half-duplex semantics.
It relies on perl's IO::Socket::INET. That's been in
the base distribution since 5.6.0, so it's probably
available everywhere. But just to be on the safe side,
we'll add a prereq.
2. To help tests speak and read pktline, this patch adds
packetize() and depacketize() functions.
I've put fake_nc() into lib-git-daemon.sh, since that's
really the only server where we'd need to use a network
socket. Whereas the pktline helpers may be of more general
use, so I've added them to test-lib-functions.sh. Programs
like upload-pack speak pktline, but can talk directly over
stdio without a network socket.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
123 lines
2.7 KiB
Bash
123 lines
2.7 KiB
Bash
# Shell library to run git-daemon in tests. Ends the test early if
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# GIT_TEST_GIT_DAEMON is not set.
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#
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# Usage:
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#
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# . ./test-lib.sh
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# . "$TEST_DIRECTORY"/lib-git-daemon.sh
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# start_git_daemon
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#
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# test_expect_success '...' '
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# ...
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# '
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#
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# test_expect_success ...
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#
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# stop_git_daemon
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# test_done
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test_tristate GIT_TEST_GIT_DAEMON
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if test "$GIT_TEST_GIT_DAEMON" = false
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then
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skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)"
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test_done
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fi
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if test_have_prereq !PIPE
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then
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test_skip_or_die $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
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fi
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LIB_GIT_DAEMON_PORT=${LIB_GIT_DAEMON_PORT-${this_test#t}}
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GIT_DAEMON_PID=
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GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
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GIT_DAEMON_HOST_PORT=127.0.0.1:$LIB_GIT_DAEMON_PORT
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GIT_DAEMON_URL=git://$GIT_DAEMON_HOST_PORT
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start_git_daemon() {
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if test -n "$GIT_DAEMON_PID"
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then
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error "start_git_daemon already called"
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fi
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mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
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trap 'code=$?; stop_git_daemon; (exit $code); die' EXIT
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say >&3 "Starting git daemon ..."
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mkfifo git_daemon_output
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${LIB_GIT_DAEMON_COMMAND:-git daemon} \
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--listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
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--reuseaddr --verbose \
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--base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
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"$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
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>&3 2>git_daemon_output &
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GIT_DAEMON_PID=$!
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>daemon.log
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{
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read -r line <&7
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printf "%s\n" "$line"
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printf >&4 "%s\n" "$line"
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(
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while read -r line <&7
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do
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printf "%s\n" "$line"
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printf >&4 "%s\n" "$line"
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done
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) &
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} 7<git_daemon_output >>"$TRASH_DIRECTORY/daemon.log" &&
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# Check expected output
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if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
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then
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kill "$GIT_DAEMON_PID"
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wait "$GIT_DAEMON_PID"
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trap 'die' EXIT
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test_skip_or_die $GIT_TEST_GIT_DAEMON \
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"git daemon failed to start"
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fi
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}
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stop_git_daemon() {
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if test -z "$GIT_DAEMON_PID"
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then
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return
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fi
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trap 'die' EXIT
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# kill git-daemon child of git
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say >&3 "Stopping git daemon ..."
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kill "$GIT_DAEMON_PID"
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wait "$GIT_DAEMON_PID" >&3 2>&4
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ret=$?
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if test_match_signal 15 $?
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then
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error "git daemon exited with status: $ret"
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fi
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GIT_DAEMON_PID=
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rm -f git_daemon_output
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}
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# A stripped-down version of a netcat client, that connects to a "host:port"
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# given in $1, sends its stdin followed by EOF, then dumps the response (until
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# EOF) to stdout.
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fake_nc() {
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if ! test_declared_prereq FAKENC
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then
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echo >&4 "fake_nc: need to declare FAKENC prerequisite"
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return 127
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fi
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perl -Mstrict -MIO::Socket::INET -e '
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my $s = IO::Socket::INET->new(shift)
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or die "unable to open socket: $!";
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print $s <STDIN>;
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$s->shutdown(1);
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print <$s>;
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' "$@"
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}
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test_lazy_prereq FAKENC '
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perl -MIO::Socket::INET -e "exit 0"
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'
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