public void on_action_executing_should_not_add_headers_for_versionX2Dneutral_controller()
        {
            // arrange
            var context   = CreateContext(ApiVersionModel.Neutral);
            var attribute = new ReportApiVersionsAttribute();

            // act
            attribute.OnActionExecuted(context);


            // assert
            context.HttpContext.Response.Headers.ContainsKey("api-supported-versions").Should().BeFalse();
            context.HttpContext.Response.Headers.ContainsKey("api-deprecated-versions").Should().BeFalse();
        }
        public void on_action_executed_should_add_version_headers()
        {
            // arrange
            var supported  = new[] { new ApiVersion(1, 0), new ApiVersion(2, 0) };
            var deprecated = new[] { new ApiVersion(0, 5) };
            var model      = new ApiVersionModel(supported, deprecated);
            var context    = CreateContext(model);
            var attribute  = new ReportApiVersionsAttribute();

            // act
            attribute.OnActionExecuted(context);

            // assert
            context.HttpContext.Response.Headers["api-supported-versions"].Single().Should().Be("1.0, 2.0");
            context.HttpContext.Response.Headers["api-deprecated-versions"].Single().Should().Be("0.5");
        }