require 'gir_ffi_test_helper'

describe GirFFI::MethodStubber do
  describe '#method_stub' do
    let(:stubber) { GirFFI::MethodStubber.new(method_info) }
    let(:result) { stubber.method_stub }

    describe 'for a regular method' do
      let(:method_info) do
        get_method_introspection_data('Regress', 'TestObj', 'instance_method')
      end

      it 'creates a method stub' do
        result.must_equal <<-STUB.reset_indentation
          def instance_method *args, &block
            setup_and_call "instance_method", args, &block
          end
        STUB
      end
    end

    describe 'for a static method' do
      let(:method_info) do
        get_method_introspection_data('Regress', 'TestObj', 'static_method')
      end

      it 'creates a class method stub' do
        result.must_equal <<-STUB.reset_indentation
          def self.static_method *args, &block
            setup_and_call "static_method", args, &block
          end
        STUB
      end
    end

    describe 'for a module function' do
      let(:method_info) do
        get_introspection_data('Regress', 'test_int')
      end

      it 'creates a module method stub' do
        result.must_equal <<-STUB.reset_indentation
          def self.test_int *args, &block
            setup_and_call "test_int", args, &block
          end
        STUB
      end
    end

    describe 'for a method with an empty name' do
      let(:method_info) { get_method_introspection_data('GLib', 'IConv', '') }

      it 'creates a method stub with a safe name that sets up the unsafe method' do
        result.must_equal <<-STUB.reset_indentation
          def _ *args, &block
            setup_and_call "", args, &block
          end
        STUB
      end
    end
  end
end
