describe Skala::I18n::DeepMerger do
  describe ".deep_merge!" do
    describe "merges arrays into arrays" do
      it "merges two arrays of literals" do
        source = [1,"2",:f]
        destination = [:"3", 5, "foo"]
        described_class.deep_merge!(destination, source)
        expect(destination).to eq([:"3", 5, "foo", 1, "2", :f])
      end

      it "merges two arrays of hashes" do
        source = [{c:3}]
        destination = [{a: 1}, {b:2}]
        described_class.deep_merge!(destination, source)
        expect(destination).to eq([{:a=>1}, {:b=>2}, {:c=>3}])
      end
    end

    describe "merges hashes into hashes" do
      it "merges two simple hashes" do
        source = { c: 3 }
        destination = { a: 1, b: 2 }
        described_class.deep_merge!(destination, source)
        expect(destination).to eq({:a=>1, :b=>2, :c=>3})
      end

      it "merges two nested hashes" do
        source = { a: { type: "multi_value", values: [2,3] }, b: { value: "123" } }
        destination = { a: { values: [1]}, b: { type: "id" } }
        described_class.deep_merge!(destination, source)
        expect(destination).to eq({:a=>{:values=>[1, 2, 3], :type=>"multi_value"}, :b=>{:type=>"id", :value=>"123"}})
      end
    end
  end
end