describe "#for_js" do

    let!(:match) do
      Band.create(name: "Depeche Mode")
    end

    context "when the code has no scope" do

      let(:criteria) do
        Band.for_js("this.name == 'Depeche Mode'")
      end

      it "returns the matching documents" do
        expect(criteria).to eq([ match ])
      end
    end

    context "when the code has scope" do

      let(:criteria) do
        Band.for_js("this.name == param", param: "Depeche Mode")
      end

      it "returns the matching documents" do
        expect(criteria).to eq([ match ])
      end
    end
  end