public async Task ExecuteAsync_Throws_IfNoViewEngineCanBeResolved()
{
// Arrange
var expected = "No service for type 'Microsoft.AspNet.Mvc.Rendering.ICompositeViewEngine'" +
" has been registered.";
var view = Mock.Of <IView>();
var serviceProvider = new ServiceCollection().BuildServiceProvider();
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewName = "some-view",
ViewData = viewData
};
var viewComponentContext = GetViewComponentContext(view, viewData);
viewComponentContext.ViewContext.HttpContext.RequestServices = serviceProvider;
// Act and Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => result.ExecuteAsync(viewComponentContext));
Assert.Equal(expected, ex.Message);
}
public async Task ExecuteAsync_ThrowsIfPartialViewCannotBeFound()
{
// Arrange
var expected = string.Join(Environment.NewLine,
"The view 'Components/Object/some-view' was not found. The following locations were searched:",
"view-location1",
"view-location2.");
var view = Mock.Of <IView>();
var viewEngine = new Mock <IViewEngine>(MockBehavior.Strict);
viewEngine.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
.Returns(ViewEngineResult.NotFound(
"Components/Object/some-view",
new[] { "view-location1", "view-location2" }))
.Verifiable();
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewEngine = viewEngine.Object,
ViewName = "some-view",
ViewData = viewData
};
var viewComponentContext = GetViewComponentContext(view, viewData);
// Act and Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => result.ExecuteAsync(viewComponentContext));
Assert.Equal(expected, ex.Message);
}
public async Task ExecuteAsync_ResolvesViewEngineFromServiceProvider_IfNoViewEngineIsExplicitlyProvided()
{
// Arrange
var view = Mock.Of <IView>();
var viewEngine = new Mock <ICompositeViewEngine>(MockBehavior.Strict);
viewEngine.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
.Returns(ViewEngineResult.Found("some-view", view))
.Verifiable();
var serviceProvider = new Mock <IServiceProvider>();
serviceProvider.Setup(p => p.GetService(typeof(ICompositeViewEngine)))
.Returns(viewEngine.Object);
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewName = "some-view",
ViewData = viewData
};
var viewComponentContext = GetViewComponentContext(view, viewData);
viewComponentContext.ViewContext.HttpContext.RequestServices = serviceProvider.Object;
// Act
await result.ExecuteAsync(viewComponentContext);
// Assert
viewEngine.Verify();
serviceProvider.Verify();
}
public async Task ExecuteAsync_RendersPartialViews()
{
// Arrange
var view = Mock.Of <IView>();
var viewEngine = new Mock <IViewEngine>(MockBehavior.Strict);
viewEngine.Setup(e => e.FindPartialView(It.IsAny <ActionContext>(), It.IsAny <string>()))
.Returns(ViewEngineResult.Found("some-view", view))
.Verifiable();
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewEngine = viewEngine.Object,
ViewName = "some-view",
ViewData = viewData
};
var viewComponentContext = GetViewComponentContext(view, viewData);
// Act
await result.ExecuteAsync(viewComponentContext);
// Assert
viewEngine.Verify();
}
public async Task ExecuteAsync_RendersPartialViews()
{
// Arrange
var view = Mock.Of <IView>();
var viewEngine = new Mock <IViewEngine>(MockBehavior.Strict);
viewEngine
.Setup(v => v.GetView(/*executingFilePath*/ null, "some-view", /*isMainPage*/ false))
.Returns(ViewEngineResult.NotFound("some-view", Enumerable.Empty <string>()))
.Verifiable();
viewEngine
.Setup(v => v.FindView(It.IsAny <ActionContext>(), "Components/Invoke/some-view", /*isMainPage*/ false))
.Returns(ViewEngineResult.Found("Components/Invoke/some-view", view))
.Verifiable();
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewEngine = viewEngine.Object,
ViewName = "some-view",
ViewData = viewData,
TempData = _tempDataDictionary,
};
var viewComponentContext = GetViewComponentContext(view, viewData);
// Act
await result.ExecuteAsync(viewComponentContext);
// Assert
viewEngine.Verify();
}
public async Task ExecuteAsync_ResolvesViewEngineFromServiceProvider_IfNoViewEngineIsExplicitlyProvided()
{
// Arrange
var view = Mock.Of <IView>();
var viewEngine = new Mock <ICompositeViewEngine>(MockBehavior.Strict);
viewEngine
.Setup(v => v.GetView(/*executingFilePath*/ null, "some-view", /*isMainPage*/ false))
.Returns(ViewEngineResult.NotFound("some-view", Enumerable.Empty <string>()))
.Verifiable();
viewEngine
.Setup(v => v.FindView(It.IsAny <ActionContext>(), "Components/Invoke/some-view", /*isMainPage*/ false))
.Returns(ViewEngineResult.Found("Components/Invoke/some-view", view))
.Verifiable();
var serviceProvider = new Mock <IServiceProvider>();
serviceProvider.Setup(p => p.GetService(typeof(ICompositeViewEngine)))
.Returns(viewEngine.Object);
serviceProvider.Setup(p => p.GetService(typeof(DiagnosticSource)))
.Returns(new DiagnosticListener("Test"));
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider());
var result = new ViewViewComponentResult
{
ViewName = "some-view",
ViewData = viewData,
TempData = _tempDataDictionary,
};
var viewComponentContext = GetViewComponentContext(view, viewData);
viewComponentContext.ViewContext.HttpContext.RequestServices = serviceProvider.Object;
// Act
await result.ExecuteAsync(viewComponentContext);
// Assert
viewEngine.Verify();
serviceProvider.Verify();
}
