tests: add script to disable a selected wire protocol capability
This can be used to test that the client and server both fall back to the
previous wire protocol when the capability is not supported.
It is currently used by test-push-http.t and I plan to use it for the HTTP
long argument support tests.
test --time
$ hg --time help -q help 2>&1 | grep Time > /dev/null
$ hg init a
$ cd a
test --profile
$ if "$TESTDIR/hghave" -q lsprof; then
> hg --profile st 2>../out || echo --profile failed
> grep CallCount < ../out > /dev/null || echo wrong --profile
>
> hg --profile --config profiling.output=../out st 2>&1 \
> || echo --profile + output to file failed
> grep CallCount < ../out > /dev/null \
> || echo wrong --profile output when saving to a file
>
> hg --profile --config profiling.format=text st 2>&1 \
> | grep CallCount > /dev/null || echo --profile format=text failed
>
> echo "[profiling]" >> $HGRCPATH
> echo "format=kcachegrind" >> $HGRCPATH
>
> hg --profile st 2>../out || echo --profile format=kcachegrind failed
> grep 'events: Ticks' < ../out > /dev/null || echo --profile output is wrong
>
> hg --profile --config profiling.output=../out st 2>&1 \
> || echo --profile format=kcachegrind + output to file failed
> grep 'events: Ticks' < ../out > /dev/null \
> || echo --profile output is wrong
> fi