Run RSpec tests in Vagrant from Visual Studio Code Host

tasks.json

{
  // See https://go.microsoft.com/fwlink/?LinkId=733558
  // for the documentation about the tasks.json format
  "version": "0.1.0",
  "command": "cmd",
  "isShellCommand": true,
  "tasks": [
    {
      "isBuildCommand": true,
      "taskName": "run tests",
      "args": ["/C",
          "ssh", "vagrant@127.0.0.1",
          "-p", "2222",
          "-i", ".vagrant\\machines\\default\\virtualbox\\private_key",
          "\"cd /vagrant && /home/vagrant/.rbenv/shims/rspec -f d --color\""]
          }
  ]
 ,
  "showOutput": "always"
}