test(#354): add EntityResourceService tests

Author: jaredcnance

test/UnitTests/Services/EntityResourceService_Tests.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Threading.Tasks;
+using JsonApiDotNetCore.Builders;
+using JsonApiDotNetCore.Data;
+using JsonApiDotNetCore.Services;
+using JsonApiDotNetCoreExample.Models;
+using Microsoft.Extensions.Logging;
+using Moq;
+using Xunit;
+
+namespace UnitTests.Services
+{
+    public class EntityResourceService_Tests
+    {
+        private readonly Mock<IJsonApiContext> _jsonApiContextMock = new Mock<IJsonApiContext>();
+        private readonly Mock<IEntityRepository<TodoItem>> _repositoryMock = new Mock<IEntityRepository<TodoItem>>();
+        private readonly ILoggerFactory _loggerFactory = new Mock<ILoggerFactory>().Object;
+
+        public EntityResourceService_Tests()
+        {
+            _jsonApiContextMock
+                .Setup(m => m.ContextGraph)
+                .Returns(
+                    new ContextGraphBuilder()
+                        .AddResource<TodoItem>("todo-items")
+                        .Build()
+                );
+        }
+
+        [Fact]
+        public async Task GetRelationshipAsync_Passes_Public_ResourceName_To_Repository()
+        {
+            // arrange
+            const int id = 1;
+            const string relationshipName = "collection";
+
+            _repositoryMock.Setup(m => m.GetAndIncludeAsync(id, relationshipName))
+                .ReturnsAsync(new TodoItem());
+
+            var repository = GetService();
+
+            // act
+            await repository.GetRelationshipAsync(id, relationshipName);
+
+            // assert
+            _repositoryMock.Verify(m => m.GetAndIncludeAsync(id, relationshipName), Times.Once);
+        }
+
+        [Fact]
+        public async Task GetRelationshipAsync_Returns_Relationship_Value()
+        {
+            // arrange
+            const int id = 1;
+            const string relationshipName = "collection";
+
+            var todoItem = new TodoItem
+            {
+                Collection = new TodoItemCollection { Id = Guid.NewGuid() }
+            };
+
+            _repositoryMock.Setup(m => m.GetAndIncludeAsync(id, relationshipName))
+                .ReturnsAsync(todoItem);
+
+            var repository = GetService();
+
+            // act
+            var result = await repository.GetRelationshipAsync(id, relationshipName);
+
+            // assert
+            Assert.NotNull(result);
+            var collection = Assert.IsType<TodoItemCollection>(result);
+            Assert.Equal(todoItem.Collection.Id, collection.Id);
+        }
+
+        private EntityResourceService<TodoItem> GetService() =>
+            new EntityResourceService<TodoItem>(_jsonApiContextMock.Object, _repositoryMock.Object, _loggerFactory);
+    }
+}