--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib-test-revinfo.sh	Sun Jan 06 23:53:34 2019 +0100
@@ -0,0 +1,62 @@
+#!/bin/sh
+
+#
+# Preconditions for a manual setup:
+#
+#   - cd tests
+#   - . ./lib-test-revinfo.sh
+#   - TESTDIR=`pwd`; export TESTDIR
+#
+
+#
+# Prepare a "canonical" repository for testing the kwarchive extension
+#
+# prepare_repo REPO
+#
+prepare_repo() {
+    if [ -z "$TESTDIR" ]; then
+	echo "TESTDIR is not set"
+	return 1
+    else
+	if [ ! -f "$TESTDIR/../extensions/kwarchive.py" ]; then
+	    echo "Wrong TESTDIR setup"
+	    return 1
+	fi
+	LOCAL_TESTDIR="$TESTDIR"
+    fi
+    if [ -z "$HGRCPATH" ]; then
+	#
+	# Check whether we are running in the context of Mercurial's
+	# run-tests.py
+	#
+	if [ "$TESTTMP" = "$HOME" ]; then
+	    echo "HGRCPATH is not set"
+	    return 1
+	else
+	    # Path after changing wd into $1
+	    LOCAL_HGRCPATH=".hg/hgrc"
+	fi
+    else
+	LOCAL_HGRCPATH="$HGRCPATH"
+    fi
+    hg init "$1"
+    cd "$1"
+    cat >>$LOCAL_HGRCPATH <<EOF
+[extensions]
+revinfo=$LOCAL_TESTDIR/../extensions/revinfo.py
+[ui]
+username=First Second <first.second@example.com>
+[paths]
+default=https://theuser:thepass@hg.example.com:4443/repo.hg
+EOF
+    unset HGUSER
+    unset EMAIL
+
+    cat >>test.txt <<EOF
+Test content
+EOF
+    hg add test.txt
+    hg ci -m 'Some files'
+
+    cd ..
+}