tests: add in a vagrantfile for testing normal/slave/reverse mounts.

test/misc/README.txt

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+
+# This directory is for testing the three different mount modes
+# that are supported by vagrant-sshfs
+
+# To test we will first create the directory on the machien where
+# we will mount the guest /etc/ into the host (the reverse mount).
+
+mkdir /tmp/reverse_mount_etc
+
+# Next we will define where our 3rd party host is (the normal mount).
+# This can be another vagrant box or whatever machine you want.
+export THIRD_PARTY_HOST='192.168.121.73'                                                                                                                                               
+export THIRD_PARTY_HOST_USER='vagrant'                                                                                                                                                 
+export THIRD_PARTY_HOST_PASS='vagrant'
+
+# Next vagrant up - will do 3 mounts (normal, slave, reverse).
+vagrant up
+
+# Next run the script to test the mounts:
+$ bash dotests.sh 
+Testing normal mount!
+a57e39fa692f294e860349a9451be67c
+Testing slave mount!
+e2c4ceac71dc414cb3ed864cff04a917
+Testing reverse mount!
+508619e7e68e446c84d1fcdf7e0dc577
+
+# We are printing out the machine-id under each mount to prove each
+# mount is from a different machine.

test/misc/Vagrantfile

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+Vagrant.configure(2) do |config|
+
+    config.ssh.insert_key = 'true'
+
+    # Test a forward normal mount: 
+    #     mounting a folder from a 3rd party host into guest
+    config.vm.synced_folder "/etc/", "/tmp/forward_normal_mount_etc/", type: "sshfs",
+        ssh_host: ENV['THIRD_PARTY_HOST'],
+        ssh_username: ENV['THIRD_PARTY_HOST_USER'],
+        ssh_password: ENV['THIRD_PARTY_HOST_PASS']
+
+    # Test a forward slave mount: 
+    #   mounting /etc/ from the vagrant host into the guest
+    config.vm.synced_folder "/etc/", "/tmp/forward_slave_mount_etc/", type: "sshfs"
+
+    # Test a reverse mount:
+    # mounting /etc/ from vagrant guest into vagrant host
+    config.vm.synced_folder "/tmp/reverse_mount_etc/", "/etc", type: "sshfs", reverse: true
+
+    host = 'vagrant-sshfs-tests'
+    box  = 'fedora/24-cloud-base'
+
+    config.vm.define host do | tmp |
+        tmp.vm.hostname = host
+        tmp.vm.box = box
+    end
+end

test/misc/dotests.sh

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+#!/bin/bash
+set -eu
+
+# Test the three mounts we have done
+
+echo "Testing normal mount!"
+vagrant ssh -- cat /tmp/forward_normal_mount_etc/machine-id
+
+echo "Testing slave mount!"
+vagrant ssh -- cat /tmp/forward_slave_mount_etc/machine-id
+
+echo "Testing reverse mount!"
+cat /tmp/reverse_mount_etc/machine-id