[PATCH 8/9] test: check if emacs is available in the beginning of test_emacs

[Tomi Ollila]

On Thu, 17 Nov 2011 05:56:25 +0400, Dmitry Kurochkin <dmitry.kurochkin at gmail.com> wrote:
> Unfortunately, this is needed to avoid the emacs waiting loop.
> ---

>  test/test-lib.sh |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)

[ context reduced ]

> diff --git a/test/test-lib.sh b/test/test-lib.sh
> index 840c86c..5bd5bd6 100755
> --- a/test/test-lib.sh
> +++ b/test/test-lib.sh

I have to patch the full set to my clone of the repo and do 
fuller review, but until that...

>  test_emacs () {
> +	# test dependencies beforehand to avoid the waiting loop below
> +	which emacs >/dev/null || emacs || return
> +	which emacsclient >/dev/null || emacsclient || return
> +

If emacs not found using which (what happened to hash), then try
to execute emacs (??) and if that fails return.

Same thing with emacsclient.

In case of emacs: DISPLAY set, TERM=dumb -- emacs starts interactively
on my desktop; grep DISPLAY test/* yields nothing. (maybe we should unset
DISPLAY for tests ?). And, if DISPLAY unset, emacs exits with nonzero
value, making || return happen anyway.

... and this is tested every time test_emacs() is executed...

>  	if [ -z "$EMACS_SERVER" ]; then
>  		server_name="notmuch-test-suite-$$"
> -- 
> 1.7.7.2

Tomi