diff --git a/.hgignore b/.hgignore
--- a/.hgignore
+++ b/.hgignore
@@ -25,6 +25,7 @@ tests/*.err
 tests/htmlcov
 build
 contrib/hgsh/hgsh
+contrib/vagrant/.vagrant
 dist
 packages
 doc/common.txt
diff --git a/contrib/vagrant/README.md b/contrib/vagrant/README.md
new file mode 100644
--- /dev/null
+++ b/contrib/vagrant/README.md
@@ -0,0 +1,4 @@
+Run Mercurial tests with Vagrant:
+
+$ vagrant up
+$ vagrant ssh -c ./run-tests.sh
diff --git a/contrib/vagrant/Vagrantfile b/contrib/vagrant/Vagrantfile
new file mode 100644
--- /dev/null
+++ b/contrib/vagrant/Vagrantfile
@@ -0,0 +1,14 @@
+# -*- mode: ruby -*-
+
+Vagrant.configure('2') do |config|
+  # Debian 7.4 32-bit i386 without configuration management software
+  config.vm.box = "puppetlabs/debian-7.4-32-nocm"
+  #config.vm.box = "pnd/debian-wheezy32-basebox"
+  config.vm.hostname = "tests"
+
+  config.vm.define "tests" do |conf|
+    conf.vm.provision :file, source: "run-tests.sh", destination:"run-tests.sh"
+    conf.vm.provision :shell, path: "provision.sh"
+    conf.vm.synced_folder "../..", "/hgshared"
+  end
+end
diff --git a/contrib/vagrant/provision.sh b/contrib/vagrant/provision.sh
new file mode 100644
--- /dev/null
+++ b/contrib/vagrant/provision.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+# This scripts is used to install dependencies for
+# testing Mercurial. Mainly used by Vagrant (see
+# Vagrantfile for details).
+
+export DEBIAN_FRONTEND=noninteractive
+apt-get update
+apt-get install -y -q python-dev unzip
+# run-tests.sh is added by Vagrantfile
+chmod +x run-tests.sh
diff --git a/contrib/vagrant/run-tests.sh b/contrib/vagrant/run-tests.sh
new file mode 100644
--- /dev/null
+++ b/contrib/vagrant/run-tests.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+# This scripts is used to setup temp directory in memory
+# for running Mercurial tests in vritual machine managed
+# by Vagrant (see Vagrantfile for details).
+
+cd /hgshared
+make local
+cd tests
+mkdir /tmp/ram
+sudo mount -t tmpfs -o size=100M tmpfs /tmp/ram
+export TMPDIR=/tmp/ram
+./run-tests.py -l --time
+