test(service-collection-extension): test service injection

Author: jaredcnance

src/JsonApiDotNetCore/Extensions/ServiceProviderExtensions.cs renamed to src/JsonApiDotNetCore/Extensions/IServiceCollectionExtensions.cs

@@ -12,7 +12,7 @@
 
 namespace JsonApiDotNetCore.Extensions
 {
-    public static class ServiceProviderExtensions
+    public static class IServiceCollectionExtensions
     {
         public static void AddJsonApi<TContext>(this IServiceCollection services) 
             where TContext : DbContext

test/JsonApiDotNetCoreExampleTests/Unit/Extensions/IServiceCollectionExtensionsTests.cs

@@ -0,0 +1,45 @@
+using Xunit;
+using JsonApiDotNetCore.Builders;
+using Microsoft.Extensions.DependencyInjection;
+using JsonApiDotNetCore.Extensions;
+using JsonApiDotNetCore.Configuration;
+using Microsoft.EntityFrameworkCore;
+using JsonApiDotNetCore.Data;
+using JsonApiDotNetCore.Internal;
+using Microsoft.AspNetCore.Http;
+using JsonApiDotNetCore.Services;
+using JsonApiDotNetCoreExample.Data;
+using Microsoft.Extensions.Caching.Memory;
+using JsonApiDotNetCoreExample.Models;
+
+namespace JsonApiDotNetCoreExampleTests.Unit.Extensions
+{
+    public class IServiceCollectionExtensionsTests
+    {
+        [Fact]
+        public void AddJsonApiInternals_Adds_All_Required_Services()
+        {
+            // arrange
+            var services = new ServiceCollection();
+            var jsonApiOptions = new JsonApiOptions();
+            
+            services.AddDbContext<AppDbContext>(options =>
+            {
+                options.UseMemoryCache(new MemoryCache(new MemoryCacheOptions()));
+            }, ServiceLifetime.Transient);
+
+            // act
+            services.AddJsonApiInternals<AppDbContext>(jsonApiOptions);
+            var provider = services.BuildServiceProvider();
+
+            // assert
+            Assert.NotNull(provider.GetService<DbContext>());
+            Assert.NotNull(provider.GetService(typeof(IEntityRepository<TodoItem>)));
+            Assert.NotNull(provider.GetService<JsonApiOptions>());
+            Assert.NotNull(provider.GetService<IContextGraph>());
+            Assert.NotNull(provider.GetService<IJsonApiContext>());
+            Assert.NotNull(provider.GetService<IHttpContextAccessor>());
+            Assert.NotNull(provider.GetService<IMetaBuilder>());
+        }
+    }
+}