Add a basic test case for packages proposal

test/Makefile.am

@@ -2,6 +2,7 @@ TESTS = \
   root_part_test.rb \
   suse_release_test.rb \
   inst_update_partition_auto_test.rb \
+  packages_proposal_test.rb \
   update_test.rb
 
 TEST_EXTENSIONS = .rb

test/packages_proposal_test.rb

@@ -0,0 +1,57 @@
+#!/usr/bin/env rspec
+
+require_relative "test_helper"
+require_relative "../src/clients/packages_proposal"
+
+describe Yast::PackagesProposalClient do
+  subject(:client) { described_class.new }
+
+  before do
+    allow(Yast::WFM).to receive(:Args) do |n|
+      n.nil? ? args : args[n]
+    end
+  end
+
+  describe "#main" do
+    context "when action is MakeProposal" do
+      let(:args) { ["MakeProposal"] }
+
+      PACKAGES = {
+        installed: ["grub", "elilo"],
+        selected:  ["grub", "grub2-efi", "grub2-pc"],
+        removed:   ["elilo"]
+      }
+
+      before do
+        allow(Yast::SpaceCalculation).to receive(:GetPartitionWarning)
+          .and_return(nil)
+        allow(Yast::Packages).to receive(:proposal_for_update)
+        allow(Yast::Pkg).to receive(:GetPackages).with(anything, true) do |status, _names_only|
+          PACKAGES[status]
+        end
+      end
+
+      it "asks for a packages selection proposal" do
+        expect(Yast::Packages).to receive(:proposal_for_update)
+        client.main
+      end
+
+      it "summarizes packages to update/install/remove" do
+        expect(Yast::Update).to receive(:packages_to_update=)
+          .with(1)
+        expect(Yast::Update).to receive(:packages_to_install=)
+          .with(2)
+        expect(Yast::Update).to receive(:packages_to_remove=)
+          .with(1)
+        client.main
+      end
+
+      it "is meant to be triggered if packages proposal changes" do
+        expect(client.main["trigger"]).to eq({
+          "expect" => { "class" => "Yast::Packages", "method" => "PackagesProposalChanged" },
+          "value" => false
+        })
+      end
+    end
+  end
+end