Added unit tests for ViewComponentTestBuilderExtensions.

Author: u-ashikov

test/MyTested.AspNetCore.Mvc.Controllers.Views.ActionResults.Test/BuildersTests/ActionsTests/ShouldReturnTests/ShouldReturnViewComponentTests.cs

@@ -20,6 +20,57 @@ public void ShouldReturnViewComponentShouldNotThrowExceptionWithCorrectViewCompo
                     .WithName("TestComponent"));
         }
 
+        [Fact]
+        public void ShouldReturnViewComponentShouldNotThrowExceptionWithViewComponentName()
+        {
+            MyController<MvcController>
+                .Instance()
+                .Calling(c => c.ViewComponent("MyComponent"))
+                .ShouldReturn()
+                .ViewComponent(viewComponent => viewComponent
+                    .WithName("MyComponent"));
+        }
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldNotThrowExceptionWithEmptyViewComponentName()
+        {
+            MyController<MvcController>
+                .Instance()
+                .Calling(c => c.ViewComponent(string.Empty))
+                .ShouldReturn()
+                .ViewComponent(viewComponent => viewComponent
+                    .WithName(string.Empty));
+        }
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldNotThrowExceptionWithViewComponentNameAndPassAssertions()
+        {
+            MyController<MvcController>
+                .Instance()
+                .Calling(c => c.ViewComponent("MyComponent"))
+                .ShouldReturn()
+                .ViewComponent(viewComponent => viewComponent
+                    .WithName("MyComponent")
+                    .AndAlso()
+                    .Passing(vc => 
+                    {
+                        Assert.NotNull(vc);
+                        Assert.NotEmpty(vc.ViewComponentName);
+                        Assert.True(typeof(ViewComponentResult) == vc.GetType());
+                    }));
+        }
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldNotThrowExceptionWithNull()
+        {
+            MyController<MvcController>
+                .Instance()
+                .Calling(c => c.CustomViewComponentResult())
+                .ShouldReturn()
+                .ViewComponent(viewComponent => viewComponent
+                    .WithName(null));
+        }
+
         [Fact]
         public void ShouldReturnViewComponentShouldThrowExceptionWithIncorrectViewComponentWithName()
         {
@@ -52,6 +103,22 @@ public void ShouldReturnViewComponentShouldThrowExceptionWithIncorrectViewCompon
                 "When calling ViewComponentResultByName action in MvcController expected view component result to be 'Incorrect', but instead received 'TestComponent'.");
         }
 
+        [Fact]
+        public void ShouldReturnViewComponentShouldThrowExceptionWithDifferentCaseViewComponentName()
+        {
+            Test.AssertException<ViewResultAssertionException>(
+                () =>
+                {
+                    MyController<MvcController>
+                        .Instance()
+                        .Calling(c => c.ViewComponent("Incorrect"))
+                        .ShouldReturn()
+                        .ViewComponent(viewComponent => viewComponent
+                            .WithName("incorrect"));
+                },
+                "When calling ViewComponentResultByName action in MvcController expected view component result to be 'incorrect', but instead received 'Incorrect'.");
+        }
+
         [Fact]
         public void ShouldReturnViewComponentShouldNotThrowExceptionWithCorrectViewComponentType()
         {
@@ -62,7 +129,18 @@ public void ShouldReturnViewComponentShouldNotThrowExceptionWithCorrectViewCompo
                 .ViewComponent(viewComponent => viewComponent
                     .OfType(typeof(CustomViewComponent)));
         }
-        
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldNotThrowExceptionWithNullComponentType()
+        {
+            MyController<MvcController>
+                .Instance()
+                .Calling(c => c.CustomViewComponentResult())
+                .ShouldReturn()
+                .ViewComponent(viewComponent => viewComponent
+                    .OfType(null));
+        }
+
         [Fact]
         public void ShouldReturnViewComponentShouldNotThrowExceptionWithCorrectViewComponentTypeAsGeneric()
         {
@@ -105,5 +183,37 @@ public void ShouldReturnViewComponentShouldThrowExceptionWithIncorrectViewCompon
                 },
                 "When calling ViewComponentResultByType action in MvcController expected view component result to be 'ViewComponent', but instead received 'CustomViewComponent'.");
         }
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldThrowExceptionWithNullComponentType()
+        {
+            Test.AssertException<ViewResultAssertionException>(
+                () =>
+                {
+                    MyController<MvcController>
+                        .Instance()
+                        .Calling(c => c.ViewComponentResultByType())
+                        .ShouldReturn()
+                        .ViewComponent(viewComponent => viewComponent
+                            .OfType(null));
+                },
+                "When calling ViewComponentResultByType action in MvcController expected view component result to be 'null', but instead received 'CustomViewComponent'.");
+        }
+
+        [Fact]
+        public void ShouldReturnViewComponentShouldThrowExceptionWithIncorrectViewComponentTypeAsGeneric()
+        {
+            Test.AssertException<ViewResultAssertionException>(
+                () =>
+                {
+                    MyController<MvcController>
+                        .Instance()
+                        .Calling(c => c.ViewComponent("Test"))
+                        .ShouldReturn()
+                        .ViewComponent(viewComponent => viewComponent
+                            .OfType<CustomViewComponent>());
+                },
+                "When calling ViewComponent action in MvcController expected view component result to be 'CustomViewComponent', but instead received 'null'.");
+        }
     }
 }