guests/linux: Add tests for nfs_client_installed

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

@@ -0,0 +1,29 @@
+require_relative "../../../../base"
+
+describe "VagrantPlugins::GuestLinux::Cap::NFSClient" do
+  let(:caps) do
+    VagrantPlugins::GuestLinux::Plugin
+      .components
+      .guest_capabilities[:linux]
+  end
+
+  let(:machine) { double("machine") }
+  let(:comm) { VagrantTests::DummyCommunicator::Communicator.new(machine) }
+
+  before do
+    allow(machine).to receive(:communicate).and_return(comm)
+  end
+
+  after do
+    comm.verify_expectations!
+  end
+
+  describe ".nfs_client_installed" do
+    let(:cap) { caps.get(:nfs_client_installed) }
+
+    it "installs nfs client utilities" do
+      comm.expect_command("test -x /sbin/mount.nfs")
+      cap.nfs_client_installed(machine)
+    end
+  end
+end