Contents

# frozen_string_literal: true

module ParameterizedTesting
  module RSpec
    # The parameterized testing driver for RSpec.
    # This module is automatically extended to {RSpec::Core::ExampleGroup}.
    module Driver
      # Entry point of the parameterized testing for RSpec.
      # See https://github.com/yubrot/ruby_parameterized_testing
      # @param params [Array<Symbol>] parameter names
      def parameterized(*params, &)
        signature = ::ParameterizedTesting::Signature.new(*params)

        ::ParameterizedTesting::Input.collect(&).each do |input|
          # Each input corresponds to a context:
          context(input.label) do
            # Declare each parameter with a let:
            signature.params.each do |param|
              let(param) { __send__(signature.temporary_variable_name).fetch(param) }
            end

            # Each parameter refers this temporary variable:
            let(signature.temporary_variable_name) do
              signature.map(instance_exec(&input.initializer)) or
                raise ::ParameterizedTesting::RSpec::InvalidInputFormatError.new(input:, signature:)
            end

            @_parameterized_testing_ctx = true
            instance_exec(&)
          end
        end
      end

      # @!visibility private
      def input(...)
        raise ParameterizedTesting::RSpec::InvalidInputCallError unless @_parameterized_testing_ctx
      end
    end
  end
end

# @!visibility private
module RSpec
  module Core
    class ExampleGroup
      extend ::ParameterizedTesting::RSpec::Driver
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
parameterized_testing-rspec-1.0.0	lib/parameterized_testing/rspec/driver.rb
parameterized_testing-rspec-0.3.0	lib/parameterized_testing/rspec/driver.rb