Add tests for persisting shared folders

lib/vagrant/action/builtin/mixin_synced_folders.rb

@@ -2,7 +2,6 @@ require "json"
 require "set"
 
 require 'vagrant/util/scoped_hash_override'
-require 'vagrant/util/typed_hash'
 
 module Vagrant
   module Action

lib/vagrant/util/typed_hash.rb

@@ -1,15 +0,0 @@
-module Vagrant
-  module Util
-    class TypedHash < Hash
-
-      # Types available in the Hash
-      attr_accessor :types
-
-      def initialize(**opts)
-        if opts[:types]
-          @types = opts[:types]
-        end
-      end
-    end
-  end
-end

test/unit/plugins/guests/linux/cap/persist_mount_shared_folder_test.rb

@@ -33,6 +33,7 @@ describe "VagrantPlugins::GuestLinux::Cap::PersistMountSharedFolder" do
   before do
     allow(machine).to receive(:communicate).and_return(comm)
     allow(machine).to receive(:ssh_info).and_return(ssh_info)
+    allow(folder_plugin).to receive(:capability?).with(:mount_type).and_return(true)
     allow(folder_plugin).to receive(:capability).with(:mount_options, any_args).
       and_return(["uid=#{options_uid},gid=#{options_gid}", options_uid, options_gid])
     allow(folder_plugin).to receive(:capability).with(:mount_type).and_return("vboxsf")
@@ -65,5 +66,17 @@ describe "VagrantPlugins::GuestLinux::Cap::PersistMountSharedFolder" do
       expect(cap).to receive(:remove_vagrant_managed_fstab)
       cap.persist_mount_shared_folder(machine, nil)
     end
+
+    context "folders do not support mount_type capability" do
+      before do
+        allow(folder_plugin).to receive(:capability?).with(:mount_type).and_return(false)
+      end
+
+      it "does not inserts folders into /etc/fstab" do
+        expect(cap).to receive(:remove_vagrant_managed_fstab)
+        expect(comm).not_to receive(:sudo).with(/echo '' >> \/etc\/fstab/)
+        cap.persist_mount_shared_folder(machine, folders)
+      end
+    end
   end
 end