Contents

RSpec.describe 'Dry::Importer' do
  before do
    module Test
      module BaseLibrary
        VERSION = '0.1.0'

        module Tools
          EMPTY_ARRAY = [].freeze

          class SomeClass; end
          
          class FirstTool
            def self.empty_array
              EMPTY_ARRAY
            end
          end

          class SecondTool
            def self.some_class
              namespace::SomeClass.new
            end

            private

            def self.namespace
              Module.const_get(self.to_s[/(.*)(?=::)/])
            end
          end
        end
      end

      module ExtensionLibrary
        Dry::Importer.import(self, Test::BaseLibrary)
      end
    end
  end

  it 'imports a constant tree into another' do
    expect(Test::ExtensionLibrary).to have_constant(:VERSION)
    expect(Test::ExtensionLibrary).to have_constant(:Tools)
    expect(Test::ExtensionLibrary::Tools).to have_constant(:EMPTY_ARRAY)
    expect(Test::ExtensionLibrary::Tools).to have_constant(:SomeClass)
    expect(Test::ExtensionLibrary::Tools).to have_constant(:FirstTool)
    expect(Test::ExtensionLibrary::Tools).to have_constant(:SecondTool)
    expect(Test::ExtensionLibrary::VERSION).to eq('0.1.0')
    expect(Test::ExtensionLibrary::Tools::EMPTY_ARRAY).to eq([])
    expect(Test::ExtensionLibrary::Tools::EMPTY_ARRAY).to be_frozen
    expect(Test::ExtensionLibrary::Tools::FirstTool.empty_array).to eq([])
    expect(Test::ExtensionLibrary::Tools::SecondTool.some_class).to be_a(
      Test::ExtensionLibrary::Tools::SomeClass
    )
  end

  it 'does not mutate original namespace' do
    Test::ExtensionLibrary::VERSION = '0.2.0'
    expect(Test::BaseLibrary::VERSION).to eq('0.1.0')
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
dry-importer-0.0.1	spec/integration/importer_spec.rb