Added Unit Tests

Author: Jacob Hilty

test/JsonApiDotNetCoreExampleTests/Acceptance/Spec/DocumentTests/PagingTests.cs

@@ -27,7 +27,6 @@ public class PagingTests
 
         public PagingTests(TestFixture<TestStartup> fixture)
         {
-            CurrentTime = DateTime.Now;
             _fixture = fixture;
             _context = fixture.GetService<AppDbContext>();
             _personFaker = new Faker<Person>()
@@ -37,7 +36,7 @@ public PagingTests(TestFixture<TestStartup> fixture)
             _todoItemFaker = new Faker<TodoItem>()
                 .RuleFor(t => t.Description, f => f.Lorem.Sentence())
                 .RuleFor(t => t.Ordinal, f => f.Random.Number())
-                .RuleFor(t => t.CreatedDate, f => CurrentTime);
+                .RuleFor(t => t.CreatedDate, f => f.Date.Past());
 
             _todoItemCollectionFaker = new Faker<TodoItemCollection>()
                 .RuleFor(t => t.Name, f => f.Company.CatchPhrase());

test/UnitTests/Services/QueryComposerTests.cs

@@ -0,0 +1,57 @@
+using System.Collections.Generic;
+using JsonApiDotNetCore.Internal.Query;
+using JsonApiDotNetCore.Services;
+using Microsoft.AspNetCore.Http;
+using Moq;
+using Xunit;
+
+namespace UnitTests.Services
+{
+    public class QueryComposerTests
+    {
+        private readonly Mock<IJsonApiContext> _jsonApiContext;
+
+        public QueryComposerTests()
+        {
+            _jsonApiContext = new Mock<IJsonApiContext>();
+        }
+
+        [Fact]
+        public void Can_Compose_FilterStringForUrl()
+        {
+            // arrange
+            var filter = new FilterQuery("attribute", "value", "=");
+            var querySet = new QuerySet();
+            List<FilterQuery> filters = new List<FilterQuery>();
+            filters.Add(filter);
+            querySet.Filters=filters;
+
+            _jsonApiContext
+                .Setup(m => m.QuerySet)
+                .Returns(querySet);
+
+            var queryComposer = new QueryComposer();
+            // act
+            var filterString = queryComposer.Compose(_jsonApiContext.Object);
+            // assert
+            Assert.Equal("&filter[attribute]=value", filterString);
+        }
+
+        [Fact]
+        public void NoFilter_Compose_EmptyStringReturned()
+        {
+            // arrange
+            var querySet = new QuerySet();
+
+            _jsonApiContext
+                .Setup(m => m.QuerySet)
+                .Returns(querySet);
+
+            var queryComposer = new QueryComposer();
+            // act
+            var filterString = queryComposer.Compose(_jsonApiContext.Object);
+            // assert
+            Assert.Equal("", filterString); 
+        }
+    }
+}