Add vagrant test environment (close #32)

Author: morpheusthewhite

README.md

@@ -123,18 +123,45 @@ Once closed and restarted:
 
 ### Tests
 
-Before running the tests you need to
+Before running the tests you need to install needed dependencies with 
 
-1. Start `nordpy` and connect to any server, in order to store the credentials
+```
+# pip install -r tests/requirements.txt
+```
 
-2. Install needed dependencies with 
+Make sure you also connected at least once with the gui (in order to store the credentials). Then tests can be started with 
 
 ```
-pip install -r tests/requirements.txt
+$ python -m pytest tests
 ```
 
-Then tests can be started with 
+#### Environment
+
+You can also easily setup a test environment with `vagrant` (so you will need to install before proceeding with the following steps): the project contains a minimalistic `Vagrantfile` to initialize it.
 
+1. Start the `nordpy` gui and connect to any server in order to store the password
+
+2. Change the permissions of the `credentials` file. **WARNING**: this will the expose the password of your NordVPN account to anyone which has access to your machine.
 ```
-python -m pytest tests
+# chmod +r credentials
 ```
+
+3. Create the environment
+
+```
+$ vagrant up
+```
+
+4. Open a shell into the vm
+
+```
+$ vagrant ssh
+```
+
+5. Move to the shared folder and install nordpy
+
+```
+$ cd /Vagrant && ./install.sh
+```
+
+6. Start testing as said above!

Vagrantfile

@@ -0,0 +1,77 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://vagrantcloud.com/search.
+  config.vm.box = "generic/ubuntu1804"
+
+  # for some reason the current folder is not automatically mounted
+  config.vm.synced_folder ".", "/Vagrant"
+  
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  # config.vm.box_check_update = false
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine. In the example below,
+  # accessing "localhost:8080" will access port 80 on the guest machine.
+  # NOTE: This will enable public access to the opened port
+  # config.vm.network "forwarded_port", guest: 80, host: 8080
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine and only allow access
+  # via 127.0.0.1 to disable public access
+  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
+
+  # Create a private network, which allows host-only access to the machine
+  # using a specific IP.
+  # config.vm.network "private_network", ip: "192.168.33.10"
+
+  # Create a public network, which generally matched to bridged network.
+  # Bridged networks make the machine appear as another physical device on
+  # your network.
+  # config.vm.network "public_network"
+
+  # Share an additional folder to the guest VM. The first argument is
+  # the path on the host to the actual folder. The second argument is
+  # the path on the guest to mount the folder. And the optional third
+  # argument is a set of non-required options.
+  # config.vm.synced_folder "../data", "/vagrant_data"
+
+  # Provider-specific configuration so you can fine-tune various
+  # backing providers for Vagrant. These expose provider-specific options.
+  # Example for VirtualBox:
+  #
+  # config.vm.provider "virtualbox" do |vb|
+  #   # Display the VirtualBox GUI when booting the machine
+  #   vb.gui = true
+  #
+  #   # Customize the amount of memory on the VM:
+  #   vb.memory = "1024"
+  # end
+  #
+  # View the documentation for the provider you are using for more
+  # information on available options.
+
+  # Enable provisioning with a shell script. Additional provisioners such as
+  # Ansible, Chef, Docker, Puppet and Salt are also available. Please see the
+  # documentation for more information about their specific syntax and use.
+  config.vm.provision "shell", inline: <<-SHELL
+    systemctl stop systemd-resolved
+    systemctl disable systemd-resolved
+    printf "nameserver 8.8.8.8\n" | sudo tee /etc/resolv.conf > /dev/null
+    apt update
+    DEBIAN_FRONTEND=noninteractive apt upgrade -y
+    apt install -y python3-pip
+  SHELL
+end