test: Generate a little run_emacs script to help debug any failures.

[notmuch] / test / test-lib.sh

diff --git a/test/test-lib.sh b/test/test-lib.sh
index 6c9c93eb8a63c425f5f6da28df4048a63fdfb784..168123a2c267773f6537dca8bb13e3c66da10253 100644 (file)
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -15,6 +15,14 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see http://www.gnu.org/licenses/ .
 
+if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
+    echo "Error: The notmuch test suite requires a bash version >= 4.0"
+    echo "due to use of associative arrays within the test suite."
+    echo "Please try again with a newer bash (or help us fix the"
+    echo "test suite to be more portable). Thanks."
+    exit 1
+fi
+
 # if --tee was passed, write the output not only to the terminal, but
 # additionally to the file test-results/$BASENAME.out, too.
 case "$GIT_TEST_TEE_STARTED, $* " in
@@ -734,8 +742,29 @@ test_done () {
 }
 
 test_emacs () {
-    emacs_code="$1"
-    emacs --batch --no-site-file --directory ../../emacs --load notmuch.el --eval "(progn (set-frame-width (window-frame (get-buffer-window)) 80) ${emacs_code})"
+       # Construct a little test script here for the benefit of the user,
+       # (who can easily run "run_emacs" to get the same emacs environment
+       # for investigating any failures).    
+       cat <<EOF > run_emacs
+#!/bin/sh
+export PATH=$PATH
+export HOME=$HOME
+export NOTMUCH_CONFIG=$NOTMUCH_CONFIG
+
+# We assume that the user will give a command-line argument only if
+# wanting to run in batch mode.
+if [ \$# -gt 0 ]; then
+       BATCH=--batch
+fi
+
+emacs \$BATCH --no-site-file --directory ../../emacs --load notmuch.el \
+       --eval "(defun notmuch-test-wait ()
+                       (while (get-buffer-process (current-buffer))
+                               (sleep-for 0.1)))" \
+       --eval "(progn (set-frame-width (window-frame (get-buffer-window)) 80) \$@)"
+EOF
+       chmod a+x ./run_emacs
+       ./run_emacs "$@"
 }
 
 
@@ -840,7 +869,8 @@ rm -fr "$test" || {
 }
 
 MAIL_DIR="${TMP_DIRECTORY}/mail"
-export NOTMUCH_CONFIG="${TMP_DIRECTORY}/notmuch-config"
+export HOME="${TMP_DIRECTORY}"
+export NOTMUCH_CONFIG="${HOME}/notmuch-config"
 
 mkdir -p "${test}"
 mkdir -p "${MAIL_DIR}"