Contents

# frozen_string_literal: true

require "spec_helpers"

describe Wayfarer::Config::Struct do
  let(:struct) do
    Wayfarer::Config::Struct.new(members)
  end

  let(:members) { { foo: options } }
  let(:options) { {} }
  let(:env) { {} }
  subject { struct.new(env) }

  describe "Reader" do
    context "without environment values and default" do
      let(:options) { {} }

      it "returns nil" do
        expect(subject.foo).to be(nil)
      end
    end

    context "with default only" do
      let(:options) { { default: 42 } }

      it "returns the default" do
        expect(subject.foo).to be(42)
      end
    end

    context "with environment key specified" do
      let(:options) { { env_key: "FOO" } }

      context "with environment value" do
        let(:env) { { "FOO" => "hello" } }

        it "returns the value" do
          expect(subject.foo).to eq("hello")
        end

        context "with type specified" do
          let(:options) { { env_key: "FOO", type: Symbol } }

          it "parses the value" do
            expect(subject.foo).to be(:hello)
          end
        end
      end

      context "without environment value" do
        it "returns nil" do
          expect(subject.foo).to be(nil)
        end
      end
    end
  end

  describe "Writer" do
    it "allows overriding environment values and defaults" do
      expect {
        subject.foo = 3
      }.to change { subject.foo }.from(nil).to(3)
    end
  end
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
wayfarer-0.4.6	spec/config/struct_spec.rb
wayfarer-0.4.5	spec/config/struct_spec.rb
wayfarer-0.4.4	spec/config/struct_spec.rb
wayfarer-0.4.3	spec/config/struct_spec.rb
wayfarer-0.4.2	spec/config/struct_spec.rb
wayfarer-0.4.1	spec/config/struct_spec.rb