public async Task ExecuteResultAsync_ReturnsError_IfViewCouldNotBeFound()
{
// Arrange
var expected = string.Join(Environment.NewLine,
"The view 'MyView' was not found. The following locations were searched:",
"Location1",
"Location2.");
var actionContext = new ActionContext(GetHttpContext(),
new RouteData(),
new ActionDescriptor());
var viewEngine = new Mock<IViewEngine>();
viewEngine.Setup(v => v.FindPartialView(It.IsAny<ActionContext>(), It.IsAny<string>()))
.Returns(ViewEngineResult.NotFound("MyView", new[] { "Location1", "Location2" }))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewEngine = viewEngine.Object,
ViewName = "MyView"
};
// Act and Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => viewResult.ExecuteResultAsync(actionContext));
Assert.Equal(expected, ex.Message);
viewEngine.Verify();
}
public async Task ExecuteResultAsync_Throws_IfViewCouldNotBeFound_MessageUsesGetViewLocations()
{
// Arrange
var expected = string.Join(
Environment.NewLine,
"The view 'MyView' was not found. The following locations were searched:",
"Location1",
"Location2");
var actionContext = GetActionContext();
var viewEngine = new Mock<IViewEngine>(MockBehavior.Strict);
viewEngine
.Setup(v => v.GetView(/*executingFilePath*/ null, "MyView", /*isMainPage*/ false))
.Returns(ViewEngineResult.NotFound("MyView", new[] { "Location1", "Location2" }))
.Verifiable();
viewEngine
.Setup(v => v.FindView(It.IsAny<ActionContext>(), "MyView", /*isMainPage*/ false))
.Returns(ViewEngineResult.NotFound("MyView", Enumerable.Empty<string>()))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewEngine = viewEngine.Object,
ViewName = "MyView",
ViewData = new ViewDataDictionary(new EmptyModelMetadataProvider()),
TempData = Mock.Of<ITempDataDictionary>(),
};
// Act and Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => viewResult.ExecuteResultAsync(actionContext));
Assert.Equal(expected, ex.Message);
viewEngine.Verify();
}
public async Task PartialViewResult_UsesFindPartialViewOnSpecifiedViewEngineToLocateViews()
{
// Arrange
var viewName = "myview";
var context = new ActionContext(GetHttpContext(), new RouteData(), new ActionDescriptor());
var viewEngine = new Mock<IViewEngine>();
var view = Mock.Of<IView>();
viewEngine
.Setup(e => e.FindPartialView(context, "myview"))
.Returns(ViewEngineResult.Found("myview", view))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewName = viewName,
ViewEngine = viewEngine.Object,
ViewData = new ViewDataDictionary(new EmptyModelMetadataProvider()),
TempData = Mock.Of<ITempDataDictionary>(),
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
viewEngine.Verify();
}
public async Task ViewResult_UsesFindPartialViewOnSpecifiedViewEngineToLocateViews()
{
// Arrange
var viewName = "myview";
var context = new ActionContext(new DefaultHttpContext(), new RouteData(), new ActionDescriptor());
var viewEngine = new Mock <IViewEngine>();
var view = Mock.Of <IView>();
viewEngine.Setup(e => e.FindPartialView(context, "myview"))
.Returns(ViewEngineResult.Found("myview", view))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewName = viewName,
ViewEngine = viewEngine.Object
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
viewEngine.Verify();
}
public async Task ExecuteResultAsync_FindsAndExecutesView()
{
// Arrange
var viewName = "myview";
var context = GetActionContext();
var view = new Mock<IView>(MockBehavior.Strict);
view
.Setup(v => v.RenderAsync(It.IsAny<ViewContext>()))
.Returns(Task.FromResult(0))
.Verifiable();
view
.As<IDisposable>()
.Setup(v => v.Dispose())
.Verifiable();
// Used by logging
view
.SetupGet(v => v.Path)
.Returns("myview.cshtml");
var viewEngine = new Mock<IViewEngine>(MockBehavior.Strict);
viewEngine
.Setup(v => v.GetView(/*executingFilePath*/ null, "myview", /*isMainPage*/ false))
.Returns(ViewEngineResult.NotFound("myview", Enumerable.Empty<string>()))
.Verifiable();
viewEngine
.Setup(v => v.FindView(It.IsAny<ActionContext>(), "myview", /*isMainPage*/ false))
.Returns(ViewEngineResult.Found("myview", view.Object))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewName = viewName,
ViewEngine = viewEngine.Object,
ViewData = new ViewDataDictionary(new EmptyModelMetadataProvider()),
TempData = Mock.Of<ITempDataDictionary>(),
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
view.Verify();
viewEngine.Verify();
}
public async Task PartialViewResult_SetsContentTypeHeader(
MediaTypeHeaderValue contentType,
string expectedContentTypeHeaderValue)
{
// Arrange
var viewName = "myview";
var httpContext = GetHttpContext();
var context = new ActionContext(httpContext, new RouteData(), new ActionDescriptor());
var viewEngine = new Mock<IViewEngine>();
var view = Mock.Of<IView>();
viewEngine.Setup(e => e.FindPartialView(context, "myview"))
.Returns(ViewEngineResult.Found("myview", view));
var viewResult = new PartialViewResult
{
ViewName = viewName,
ViewEngine = viewEngine.Object,
ContentType = contentType
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
Assert.Equal(expectedContentTypeHeaderValue, httpContext.Response.ContentType);
}
public async Task ExecuteResultAsync_UsesCompositeViewEngineFromServices_IfViewEngineIsNotSpecified()
{
// Arrange
var viewName = "partial-view-name";
var context = new ActionContext(new DefaultHttpContext(),
new RouteData(),
new ActionDescriptor { Name = viewName });
var viewEngine = new Mock<ICompositeViewEngine>();
viewEngine.Setup(e => e.FindPartialView(It.IsAny<ActionContext>(), viewName))
.Returns(ViewEngineResult.Found(viewName, Mock.Of<IView>()))
.Verifiable();
var serviceProvider = new Mock<IServiceProvider>();
serviceProvider.Setup(p => p.GetService(typeof(ICompositeViewEngine)))
.Returns(viewEngine.Object);
serviceProvider.Setup(p => p.GetService(typeof(ILogger<PartialViewResult>)))
.Returns(new Mock<ILogger<PartialViewResult>>().Object);
serviceProvider.Setup(s => s.GetService(typeof(IOptions<MvcViewOptions>)))
.Returns(() => {
var optionsAccessor = new Mock<IOptions<MvcViewOptions>>();
optionsAccessor.SetupGet(o => o.Options)
.Returns(new MvcViewOptions());
return optionsAccessor.Object;
});
context.HttpContext.RequestServices = serviceProvider.Object;
var viewResult = new PartialViewResult
{
ViewName = viewName
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
viewEngine.Verify();
}
public async Task ExecuteResultAsync_UsesActionDescriptorName_IfViewNameIsNull()
{
// Arrange
var viewName = "some-view-name";
var context = new ActionContext(GetHttpContext(),
new RouteData(),
new ActionDescriptor { Name = viewName });
var viewEngine = new Mock<ICompositeViewEngine>();
viewEngine.Setup(e => e.FindPartialView(context, viewName))
.Returns(ViewEngineResult.Found(viewName, Mock.Of<IView>()))
.Verifiable();
var viewResult = new PartialViewResult
{
ViewEngine = viewEngine.Object
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
viewEngine.Verify();
}
public async Task PartialViewResult_SetsStatusCode()
{
// Arrange
var viewName = "myview";
var httpContext = GetHttpContext();
var context = new ActionContext(httpContext, new RouteData(), new ActionDescriptor());
var viewEngine = new Mock<IViewEngine>();
var view = Mock.Of<IView>();
viewEngine
.Setup(e => e.FindPartialView(context, "myview"))
.Returns(ViewEngineResult.Found("myview", view));
var viewResult = new PartialViewResult
{
ViewName = viewName,
ViewEngine = viewEngine.Object,
StatusCode = 404,
ViewData = new ViewDataDictionary(new EmptyModelMetadataProvider()),
TempData = Mock.Of<ITempDataDictionary>(),
};
// Act
await viewResult.ExecuteResultAsync(context);
// Assert
Assert.Equal(404, httpContext.Response.StatusCode);
}