add test for language switching

language/src/lib/y2country/widgets/language_selection.rb

@@ -79,8 +79,7 @@ def handle
         Yast::Language.Set(value)
         Yast::Language.languages = Yast::Language.RemoveSuffix(value)
         @default = value
-        return nil unless @emit_event
-        return nil if Yast::Mode.config
+        return nil if !@emit_event || Yast::Mode.config
 
         switch_language
         :redraw

language/test/Makefile.am

@@ -7,7 +7,7 @@ TESTS = \
     widgets/language_selection_test.rb
 
 TEST_EXTENSIONS = .rb
-RB_LOG_COMPILER = rspec
+RB_LOG_COMPILER = rspec --format doc
 VERBOSE = 1
 EXTRA_DIST = $(TESTS)
 

language/test/widgets/language_selection_test.rb

@@ -1,4 +1,4 @@
-#!/usr/bin/env rspec
+#!/usr/bin/env rspec --format doc
 
 require_relative "../test_helper"
 require "y2country/widgets/language_selection"
@@ -20,11 +20,62 @@
       .with(:first_screen).and_return(LANGUAGE_ITEMS)
   end
 
+  shared_examples "switch language" do |method|
+    before do
+      allow(Yast::Language).to receive(:SwitchToEnglishIfNeeded).and_return(false)
+      allow(Yast::Console).to receive(:SelectFont)
+      allow(Yast::Language).to receive(:language).and_return("cs_CZ")
+      # value have to be different otherwise it is skipped
+      allow(Yast::Language).to receive(:WfmSetLanguage)
+      allow(Yast::Language).to receive(:WfmSetGivenLanguage)
+    end
+
+    context "language needed to be switched to English" do
+      before do
+        allow(Yast::Language).to receive(:SwitchToEnglishIfNeeded).and_return(true)
+      end
+
+      it "switch language to english" do
+        expect(Yast::Language).to receive(:SwitchToEnglishIfNeeded).and_return(true)
+
+        subject.public_send(method)
+      end
+    end
+
+    context "language does not need to be switched to English" do
+      it "sets console font according to language" do
+        expect(Yast::Console).to receive(:SelectFont).with("cs_CZ")
+
+        subject.public_send(method)
+      end
+
+      it "sets WFM language according to selected language" do
+        expect(Yast::Language).to receive(:WfmSetLanguage)
+
+        subject.public_send(method)
+      end
+
+      context "selected langauge is nn_NO" do
+        before do
+          allow(Yast::Language).to receive(:language).and_return("nn_NO")
+        end
+
+        it "it sets WFM language to nb_NO instead" do
+          expect(Yast::Language).to receive(:WfmSetGivenLanguage).with("nb_NO")
+
+          subject.public_send(method)
+        end
+      end
+    end
+  end
+
   it "enlists all available languages" do
     expect(widget.items).to eq(LANGUAGES)
   end
 
   describe "#handle" do
+    let(:value) { "en_UK" }
+
     before do
       allow(Yast::Language).to receive(:language).and_return(default_language)
       allow(widget).to receive(:value).and_return(value)
@@ -35,15 +86,12 @@
 
     context "when language remains unchanged" do
       let(:value) { default_language }
-
       it "returns nil" do
         expect(widget.handle).to eq(nil)
       end
     end
 
     context "when language has been changed" do
-      let(:value) { "af_ZA" }
-
       it "sets the new language" do
         expect(Yast::Language).to receive(:Set).with(value)
         expect(Yast::Language).to receive(:languages=).with(value)
@@ -55,12 +103,29 @@
         widget.handle
       end
     end
+
+    context "when emit_event is set to true and Yast::Mode is not config" do
+      subject(:widget) { described_class.new(emit_event: true) }
+
+      include_examples "switch language", :handle
+
+      it "returns :redraw" do
+        expect(subject.handle).to eq :redraw
+      end
+    end
   end
 
   describe "#store" do
     it "calls #handle method" do
       expect(widget).to receive(:handle)
       widget.store
     end
+
+    context "when emit_event is set to false and Yast::Mode is not config" do
+      subject(:widget) { described_class.new(emit_event: false) }
+
+      include_examples "switch language", :store
+    end
+
   end
 end