how-to-mock-rendering-parameters-in-unit-test-sitecore-1.cs

how-to-mock-rendering-parameters-in-unit-test-sitecore-1.cs

using FluentAssertions;
using NSubstitute;
using Sitecore.Mvc.Presentation;
using SitecoreDev.Feature.Design.Controllers;
using SitecoreDev.Feature.Design.Models;
using SitecoreDev.Feature.Design.Repository;
using System;
using System.Collections.Generic;
using System.Web.Mvc;
using Xunit;

namespace SitecoreDev.Feature.Design.Tests
{
    public class CustomDataDivControllerTests
    {
        private readonly ICustomDataDivRepository repository;

        public CustomDataDivControllerTests()
        {
            this.repository = Substitute.For<ICustomDataDivRepository>();
        }

        [Fact]
        public void CustomDataDivController_Should_Return_View_With_Correct_Model()
        {
            // Arrange
            // (1) Set rendering parameter
            var rendering = new Rendering();
            // Parameters are publicly accessible field in rendering.
            // RenderingParameters takes query string as the constructor argument.
            rendering.Parameters = new RenderingParameters("hey=hello&more=moreValues");
            // (2) Create expected model
            var expectedModel = new CustomDataDiv()
            {
                CustomData = new Dictionary<string, string>
                {
                    { "hey", "hello" },
                    { "more", "moreValues" }
                }
            };
            // (3) Stub the repository function
            repository.GetParamsForCustomDiv(rendering.Parameters).Returns(expectedModel);

            // (4) Create rendering context with the mocked rendering
            using (RenderingContext.EnterContext(rendering))
            {
                var controller = new CustomDataDivController(this.repository);

                // Act
                ViewResult result = controller.CustomDataDiv() as ViewResult;
                var actualViewName = result.ViewName;
                var actualModel = result.ViewData.Model as CustomDataDiv;
                
                // Assert
                Assert.NotNull(result);
                result.ViewName.Should().Be(String.Empty);
                actualModel.Should().BeEquivalentTo(expectedModel);                
            }
        }

        [Fact]
        public void CustomDataDivController_Should_Return_No_Model_Without_Parameters()
        {
            // Arrange
            using (RenderingContext.EnterContext(new Rendering()))
            {
                var controller = new CustomDataDivController(this.repository);

                // Act
                ViewResult result = controller.CustomDataDiv() as ViewResult;
                var actualModel = result.ViewData;

                // Assert
                Assert.NotNull(result);
                actualModel.Should().HaveCount(0);
            }
        }
    }
}