+test_begin_subtest "Show handles subprocess errors"
+cat > notmuch_fail <<EOF
+#!/bin/sh
+echo This is output
+echo This is an error >&2
+exit 1
+EOF
+chmod a+x notmuch_fail
+test_emacs "(let ((notmuch-command \"$PWD/notmuch_fail\"))
+ (with-current-buffer \"*Messages*\" (erase-buffer))
+ (condition-case err
+ (notmuch-show \"*\")
+ (error (message \"%s\" (second err))))
+ (notmuch-test-wait)
+ (with-current-buffer \"*Messages*\"
+ (test-output \"MESSAGES\"))
+ (with-current-buffer \"*Notmuch errors*\"
+ (test-output \"ERROR\"))
+ (test-output))"
+sed -i -e 's/^\[.*\]$/[XXX]/' ERROR
+test_expect_equal "$(cat OUTPUT; echo ---; cat MESSAGES; echo ---; cat ERROR)" "\
+---
+This is an error (see *Notmuch errors* for more details)
+---
+[XXX]
+This is an error
+command: $PWD/notmuch_fail show --format\\=sexp --format-version\\=1 --exclude\\=false \\' \\* \\'
+exit status: 1
+stderr:
+This is an error
+stdout:
+This is output"
+
+