Simple prepare test for 9p and virtiofs synced_folders (#1529)

Provide basic tests for 9p and virtiofs synced_folder capabilities to
validate prepare behaviour.

spec/support/sharedcontext.rb

@@ -37,5 +37,6 @@ shared_context 'unit' do
   before (:each) do
     allow(machine).to receive(:guest).and_return(guest)
     allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:ui).and_return(ui)
   end
 end

spec/unit/action/forward_ports_spec.rb

@@ -195,7 +195,6 @@ describe VagrantPlugins::ProviderLibvirt::Action::ClearForwardedPorts do
         end
       end
       it 'should terminate each of the processes' do
-        expect(logger).to receive(:info).with(no_args) # don't know how to test translations from vagrant
         expect(subject).to receive(:ssh_pid?).with("10001").and_return(true)
         expect(subject).to receive(:ssh_pid?).with("10002").and_return(true)
         expect(logger).to receive(:debug).with(/Killing pid/).twice()

spec/unit/cap/synced_folder_9p_spec.rb

@@ -4,6 +4,7 @@ require 'spec_helper'
 require 'support/sharedcontext'
 
 require 'vagrant-libvirt/cap/synced_folder_9p'
+require 'vagrant-libvirt/util/unindent'
 
 describe VagrantPlugins::SyncedFolder9P::SyncedFolder do
   include_context 'unit'
@@ -11,6 +12,79 @@ describe VagrantPlugins::SyncedFolder9P::SyncedFolder do
 
   subject { described_class.new }
 
+  describe '#prepare' do
+    let(:synced_folders) { {
+      "/vagrant" => {
+        :hostpath => '/home/test/default',
+        :disabled=>false,
+        :guestpath=>'/vagrant',
+        :type => :"9p",
+      },
+    } }
+
+    let(:expected_xml) {
+      <<-EOF.unindent
+      <filesystem type="mount" accessmode="passthrough">
+        <driver type="path" wrpolicy="immediate"></driver>
+        <source dir="/home/test/default"></source>
+        <target dir="1ef53e1c9b6a5a0c695c80665331652\"></target>
+      </filesystem>
+      EOF
+    }
+
+    before do
+      allow(libvirt_client).to receive(:lookup_domain_by_uuid).and_return(libvirt_domain)
+      allow(logger).to receive(:debug)
+    end
+
+    it 'should attach device xml' do
+      expect(libvirt_domain).to receive(:attach_device).with(expected_xml, 0)
+
+      subject.prepare(machine, synced_folders, {})
+    end
+
+    context 'multiple folders' do
+      let(:synced_folders) { {
+        "/vagrant" => {
+          :hostpath => '/home/test/default',
+          :disabled=>false,
+          :guestpath=>'/vagrant',
+          :type => :"9p",
+        },
+        "/custom" => {
+          :hostpath => '/home/test/custom',
+          :disabled=>false,
+          :guestpath=>'/custom',
+          :type => :"9p",
+        },
+      } }
+
+      let(:expected_xml) {
+        [ <<-XML1.unindent, <<-XML2.unindent ]
+        <filesystem type="mount" accessmode="passthrough">
+          <driver type="path" wrpolicy="immediate"></driver>
+          <source dir="/home/test/default"></source>
+          <target dir="1ef53e1c9b6a5a0c695c80665331652\"></target>
+        </filesystem>
+        XML1
+        <filesystem type="mount" accessmode="passthrough">
+          <driver type="path" wrpolicy="immediate"></driver>
+          <source dir="/home/test/custom"></source>
+          <target dir=\"a2a1a8b6d98be8f790f3c987e006d13\"></target>
+        </filesystem>
+        XML2
+      }
+
+      it 'should attach all device xml' do
+        expect(libvirt_domain).to receive(:attach_device).with(expected_xml[0], 0)
+        expect(libvirt_domain).to receive(:attach_device).with(expected_xml[1], 0)
+        expect(ui).to receive(:info).with(/Configuring 9p devices for shared folders/).once
+
+        subject.prepare(machine, synced_folders, {})
+      end
+    end
+  end
+
   describe '#usable?' do
     context 'with libvirt provider' do
       before do

spec/unit/cap/synced_folder_virtiofs_spec.rb

@@ -4,6 +4,7 @@ require 'spec_helper'
 require 'support/sharedcontext'
 
 require 'vagrant-libvirt/cap/synced_folder_virtiofs'
+require 'vagrant-libvirt/util/unindent'
 
 describe VagrantPlugins::SyncedFolderVirtioFS::SyncedFolder do
   include_context 'unit'
@@ -11,6 +12,79 @@ describe VagrantPlugins::SyncedFolderVirtioFS::SyncedFolder do
 
   subject { described_class.new }
 
+  describe '#prepare' do
+    let(:synced_folders) { {
+      "/vagrant" => {
+        :hostpath => '/home/test/default',
+        :disabled=>false,
+        :guestpath=>'/vagrant',
+        :type => :virtiofs,
+      },
+    } }
+
+    let(:expected_xml) {
+      <<-EOF.unindent
+      <filesystem type="mount" accessmode="passthrough">
+        <driver type="virtiofs"></driver>
+        <source dir="/home/test/default"></source>
+        <target dir="1ef53e1c9b6a5a0c695c80665331652\"></target>
+      </filesystem>
+      EOF
+    }
+
+    before do
+      allow(libvirt_client).to receive(:lookup_domain_by_uuid).and_return(libvirt_domain)
+      allow(logger).to receive(:debug)
+    end
+
+    it 'should attach device xml' do
+      expect(libvirt_domain).to receive(:attach_device).with(expected_xml, 0)
+
+      subject.prepare(machine, synced_folders, {})
+    end
+
+    context 'multiple folders' do
+      let(:synced_folders) { {
+        "/vagrant" => {
+          :hostpath => '/home/test/default',
+          :disabled=>false,
+          :guestpath=>'/vagrant',
+          :type => :virtiofs,
+        },
+        "/custom" => {
+          :hostpath => '/home/test/custom',
+          :disabled=>false,
+          :guestpath=>'/custom',
+          :type => :virtiofs,
+        },
+      } }
+
+      let(:expected_xml) {
+        [ <<-XML1.unindent, <<-XML2.unindent ]
+        <filesystem type="mount" accessmode="passthrough">
+          <driver type="virtiofs"></driver>
+          <source dir="/home/test/default"></source>
+          <target dir="1ef53e1c9b6a5a0c695c80665331652\"></target>
+        </filesystem>
+        XML1
+        <filesystem type="mount" accessmode="passthrough">
+          <driver type="virtiofs"></driver>
+          <source dir="/home/test/custom"></source>
+          <target dir=\"a2a1a8b6d98be8f790f3c987e006d13\"></target>
+        </filesystem>
+        XML2
+      }
+
+      it 'should attach all device xml' do
+        expect(libvirt_domain).to receive(:attach_device).with(expected_xml[0], 0)
+        expect(libvirt_domain).to receive(:attach_device).with(expected_xml[1], 0)
+        expect(ui).to receive(:info).with(/Configuring virtiofs devices for shared folders/).once
+
+        subject.prepare(machine, synced_folders, {})
+      end
+    end
+  end
+
   describe '#usable?' do
     context 'with libvirt provider' do
       before do