diff --git a/test/test-lib-common.sh b/test/test-lib-common.sh
new file mode 100644
index 00000000..e1eaa5a0
--- /dev/null
+++ b/test/test-lib-common.sh
@@ -0,0 +1,147 @@
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see http://www.gnu.org/licenses/ .
+
+# This file contains common code to be used by both the regular
+# (correctness) tests and the performance tests.
+
+find_notmuch_path ()
+{
+    dir="$1"
+
+    while [ -n "$dir" ]; do
+	bin="$dir/notmuch"
+	if [ -x "$bin" ]; then
+	    echo "$dir"
+	    return
+	fi
+	dir="$(dirname "$dir")"
+	if [ "$dir" = "/" ]; then
+	    break
+	fi
+    done
+}
+
+# Test the binaries we have just built.  The tests are kept in
+# test/ subdirectory and are run in 'trash directory' subdirectory.
+TEST_DIRECTORY=$(pwd)
+notmuch_path=`find_notmuch_path "$TEST_DIRECTORY"`
+if test -n "$valgrind"
+then
+	make_symlink () {
+		test -h "$2" &&
+		test "$1" = "$(readlink "$2")" || {
+			# be super paranoid
+			if mkdir "$2".lock
+			then
+				rm -f "$2" &&
+				ln -s "$1" "$2" &&
+				rm -r "$2".lock
+			else
+				while test -d "$2".lock
+				do
+					say "Waiting for lock on $2."
+					sleep 1
+				done
+			fi
+		}
+	}
+
+	make_valgrind_symlink () {
+		# handle only executables
+		test -x "$1" || return
+
+		base=$(basename "$1")
+		symlink_target=$TEST_DIRECTORY/../$base
+		# do not override scripts
+		if test -x "$symlink_target" &&
+		    test ! -d "$symlink_target" &&
+		    test "#!" != "$(head -c 2 < "$symlink_target")"
+		then
+			symlink_target=$TEST_DIRECTORY/valgrind.sh
+		fi
+		case "$base" in
+		*.sh|*.perl)
+			symlink_target=$TEST_DIRECTORY/unprocessed-script
+		esac
+		# create the link, or replace it if it is out of date
+		make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
+	}
+
+	# override notmuch executable in TEST_DIRECTORY/..
+	GIT_VALGRIND=$TEST_DIRECTORY/valgrind
+	mkdir -p "$GIT_VALGRIND"/bin
+	make_valgrind_symlink $TEST_DIRECTORY/../notmuch
+	OLDIFS=$IFS
+	IFS=:
+	for path in $PATH
+	do
+		ls "$path"/notmuch 2> /dev/null |
+		while read file
+		do
+			make_valgrind_symlink "$file"
+		done
+	done
+	IFS=$OLDIFS
+	PATH=$GIT_VALGRIND/bin:$PATH
+	GIT_EXEC_PATH=$GIT_VALGRIND/bin
+	export GIT_VALGRIND
+	test -n "$notmuch_path" && MANPATH="$notmuch_path/man:$MANPATH"
+else # normal case
+	if test -n "$notmuch_path"
+		then
+			PATH="$notmuch_path:$PATH"
+			MANPATH="$notmuch_path/man:$MANPATH"
+		fi
+fi
+export PATH MANPATH
+
+# Test repository
+test="tmp.$(basename "$0" .sh)"
+test -n "$root" && test="$root/$test"
+case "$test" in
+/*) TMP_DIRECTORY="$test" ;;
+ *) TMP_DIRECTORY="$TEST_DIRECTORY/$test" ;;
+esac
+test ! -z "$debug" || remove_tmp=$TMP_DIRECTORY
+rm -fr "$test" || {
+	GIT_EXIT_OK=t
+	echo >&5 "FATAL: Cannot prepare test area"
+	exit 1
+}
+
+# A temporary home directory is needed by at least:
+# - emacs/"Sending a message via (fake) SMTP"
+# - emacs/"Reply within emacs"
+# - crypto/emacs_deliver_message
+export HOME="${TMP_DIRECTORY}/home"
+mkdir -p "${HOME}"
+
+MAIL_DIR="${TMP_DIRECTORY}/mail"
+export GNUPGHOME="${TMP_DIRECTORY}/gnupg"
+export NOTMUCH_CONFIG="${TMP_DIRECTORY}/notmuch-config"
+
+mkdir -p "${test}"
+mkdir -p "${MAIL_DIR}"
+
+cat <<EOF >"${NOTMUCH_CONFIG}"
+[database]
+path=${MAIL_DIR}
+
+[user]
+name=Notmuch Test Suite
+primary_email=test_suite@notmuchmail.org
+other_email=test_suite_other@notmuchmail.org;test_suite@otherdomain.org
+EOF
diff --git a/test/test-lib.sh b/test/test-lib.sh
index e7638bee..467b83cf 100644
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -1070,134 +1070,7 @@ test_init_ () {
 }
 
 
-find_notmuch_path ()
-{
-    dir="$1"
-
-    while [ -n "$dir" ]; do
-	bin="$dir/notmuch"
-	if [ -x "$bin" ]; then
-	    echo "$dir"
-	    return
-	fi
-	dir="$(dirname "$dir")"
-	if [ "$dir" = "/" ]; then
-	    break
-	fi
-    done
-}
-
-# Test the binaries we have just built.  The tests are kept in
-# test/ subdirectory and are run in 'trash directory' subdirectory.
-TEST_DIRECTORY=$(pwd)
-notmuch_path=`find_notmuch_path "$TEST_DIRECTORY"`
-if test -n "$valgrind"
-then
-	make_symlink () {
-		test -h "$2" &&
-		test "$1" = "$(readlink "$2")" || {
-			# be super paranoid
-			if mkdir "$2".lock
-			then
-				rm -f "$2" &&
-				ln -s "$1" "$2" &&
-				rm -r "$2".lock
-			else
-				while test -d "$2".lock
-				do
-					say "Waiting for lock on $2."
-					sleep 1
-				done
-			fi
-		}
-	}
-
-	make_valgrind_symlink () {
-		# handle only executables
-		test -x "$1" || return
-
-		base=$(basename "$1")
-		symlink_target=$TEST_DIRECTORY/../$base
-		# do not override scripts
-		if test -x "$symlink_target" &&
-		    test ! -d "$symlink_target" &&
-		    test "#!" != "$(head -c 2 < "$symlink_target")"
-		then
-			symlink_target=$TEST_DIRECTORY/valgrind.sh
-		fi
-		case "$base" in
-		*.sh|*.perl)
-			symlink_target=$TEST_DIRECTORY/unprocessed-script
-		esac
-		# create the link, or replace it if it is out of date
-		make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
-	}
-
-	# override notmuch executable in TEST_DIRECTORY/..
-	GIT_VALGRIND=$TEST_DIRECTORY/valgrind
-	mkdir -p "$GIT_VALGRIND"/bin
-	make_valgrind_symlink $TEST_DIRECTORY/../notmuch
-	OLDIFS=$IFS
-	IFS=:
-	for path in $PATH
-	do
-		ls "$path"/notmuch 2> /dev/null |
-		while read file
-		do
-			make_valgrind_symlink "$file"
-		done
-	done
-	IFS=$OLDIFS
-	PATH=$GIT_VALGRIND/bin:$PATH
-	GIT_EXEC_PATH=$GIT_VALGRIND/bin
-	export GIT_VALGRIND
-	test -n "$notmuch_path" && MANPATH="$notmuch_path/man:$MANPATH"
-else # normal case
-	if test -n "$notmuch_path"
-		then
-			PATH="$notmuch_path:$PATH"
-			MANPATH="$notmuch_path/man:$MANPATH"
-		fi
-fi
-export PATH MANPATH
-
-# Test repository
-test="tmp.$(basename "$0" .sh)"
-test -n "$root" && test="$root/$test"
-case "$test" in
-/*) TMP_DIRECTORY="$test" ;;
- *) TMP_DIRECTORY="$TEST_DIRECTORY/$test" ;;
-esac
-test ! -z "$debug" || remove_tmp=$TMP_DIRECTORY
-rm -fr "$test" || {
-	GIT_EXIT_OK=t
-	echo >&5 "FATAL: Cannot prepare test area"
-	exit 1
-}
-
-# A temporary home directory is needed by at least:
-# - emacs/"Sending a message via (fake) SMTP"
-# - emacs/"Reply within emacs"
-# - crypto/emacs_deliver_message
-export HOME="${TMP_DIRECTORY}/home"
-mkdir -p "${HOME}"
-
-MAIL_DIR="${TMP_DIRECTORY}/mail"
-export GNUPGHOME="${TMP_DIRECTORY}/gnupg"
-export NOTMUCH_CONFIG="${TMP_DIRECTORY}/notmuch-config"
-
-mkdir -p "${test}"
-mkdir -p "${MAIL_DIR}"
-
-cat <<EOF >"${NOTMUCH_CONFIG}"
-[database]
-path=${MAIL_DIR}
-
-[user]
-name=Notmuch Test Suite
-primary_email=test_suite@notmuchmail.org
-other_email=test_suite_other@notmuchmail.org;test_suite@otherdomain.org
-EOF
+. ./test-lib-common.sh
 
 emacs_generate_script