test: add rspec test

* setup folders

Author: naveenrajm7

locales/en.yml

@@ -1,5 +1,9 @@
 en:
   vagrant_utm:
+    config:
+      utm_file_url_required: |-
+        Configuration must specify utm.file_url.
+        UTM file URL is required to import the UTM virtual machine. 
     errors:
       utm_not_detected: |-
         UTM Application not detected. Please install UTM from https://mac.getutm.app/

spec/spec_helper.rb

@@ -1,6 +1,9 @@
 # frozen_string_literal: true
 
+require "rspec"
+
 require "vagrant_utm"
+require "vagrant_utm/config"
 
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure
@@ -12,4 +15,7 @@
   config.expect_with :rspec do |c|
     c.syntax = :expect
   end
+
+  # Load the translations
+  VagrantPlugins::Utm::Plugin.setup_i18n
 end

spec/vagrant_plugins/utm/config_spec.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+RSpec.describe VagrantPlugins::Utm::Config do
+  subject(:sut) { described_class.new }
+
+  context "defaults" do
+    before { subject.finalize! }
+
+    it { expect(subject.check_guest_additions).to be(true) }
+    it { expect(subject.name).to be_nil }
+  end
+
+  describe "#validate" do
+    it "raises an error if 'utm_file_url' has no value" do
+      sut.utm_file_url = nil
+      sut.name = "debian"
+      sut.finalize!
+
+      result = sut.validate(nil)
+
+      expect(result["UTM Provider"].size).to eq(1)
+    end
+  end
+end

spec/vagrant_utm_spec.rb renamed to spec/vagrant_plugins/utm_spec.rb

@@ -6,8 +6,4 @@
   it "has a version number" do
     expect(sut::VERSION).not_to be nil
   end
-
-  it "does something useful" do
-    expect(false).to eq(false)
-  end
 end