added tests

src/lib/registration/registration.rb

@@ -126,6 +126,7 @@ def activated_products
     # @param [Array<SUSE::Connect::Remote::Product>] installed_products
     # @return [Array<Array<SUSE::Connect::Remote::Product>>] list of possible migrations
     def migration_products(installed_products)
+      log.info "Loading migration products for: #{installed_products}"
       migrations = SUSE::Connect::YaST.system_migrations(installed_products)
       log.info "Received system migrations: #{migrations}"
 

test/fixtures/installed_sles12_product.yml

@@ -0,0 +1,7 @@
+---
+- !ruby/object:SUSE::Connect::Remote::Product
+  table:
+    :arch: x86_64
+    :identifier: SLES
+    :version: '12'
+    :release_type: DVD

test/fixtures/migation_to_sles12_sp1.yml

@@ -0,0 +1,7 @@
+---
+- - !ruby/object:SUSE::Connect::Remote::Product
+    table:
+      :identifier: SLES
+      :version: '12.1'
+      :arch: x86_64
+      :release_type: 

test/registration_spec.rb

@@ -167,4 +167,17 @@
       expect { callback.call(false, context) }.to raise_error OpenSSL::X509::CertificateError
     end
   end
+
+  describe "#migration_products" do
+    let(:installed_products) { YAML.load_file(fixtures_file("installed_sles12_product.yml")) }
+    let(:migration_products) { YAML.load_file(fixtures_file("migation_to_sles12_sp1.yml")) }
+
+    it "returns migration products from the server" do
+      expect(SUSE::Connect::YaST).to receive(:system_migrations)
+        .with(installed_products)
+        .and_return(migration_products)
+      result = Registration::Registration.new.migration_products(installed_products)
+      expect(result).to eq(migration_products)
+    end
+  end
 end

test/registration_ui_test.rb

@@ -137,4 +137,20 @@
       expect(registration_ui.register_addons([addon_legacy], {})).to eq :back
     end
   end
+
+  describe "#migration_products" do
+    let(:installed_products) { YAML.load_file(fixtures_file("installed_sles12_product.yml")) }
+    let(:migration_products) { YAML.load_file(fixtures_file("migation_to_sles12_sp1.yml")) }
+
+    it "returns migration products from the server with UI feedback" do
+      allow(Yast::UI).to receive(:OpenDialog)
+      allow(Yast::UI).to receive(:CloseDialog)
+
+      expect(registration).to receive(:migration_products)
+        .with(installed_products)
+        .and_return(migration_products)
+
+      expect(registration_ui.migration_products(installed_products)).to eq(migration_products)
+    end
+  end
 end