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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Concurrent;
using System.Web.Razor;
using System.Web.SessionState;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.WebPages.Test
{
public class SessionStateUtilTest
{
[Fact]
public void SetUpSessionStateDoesNotInvokeSessionStateBehaviorIfNoPageHasDirective()
{
// Arrange
var page = new Mock<WebPage>(MockBehavior.Strict);
var startPage = new Mock<StartPage>(MockBehavior.Strict);
var webPageHttpHandler = new WebPageHttpHandler(page.Object, startPage: new Lazy<WebPageRenderingBase>(() => startPage.Object));
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
// Act
SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, new ConcurrentDictionary<Type, SessionStateBehavior?>());
// Assert
context.Verify(c => c.SetSessionStateBehavior(It.IsAny<SessionStateBehavior>()), Times.Never());
}
[Fact]
public void SetUpSessionStateUsesSessionStateValueFromRequestingPageIfAvailable()
{
// Arrange
var page = new DisabledSessionWebPage();
var webPageHttpHandler = new WebPageHttpHandler(page, startPage: null);
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
context.Setup(c => c.SetSessionStateBehavior(SessionStateBehavior.Disabled)).Verifiable();
// Act
SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, new ConcurrentDictionary<Type, SessionStateBehavior?>());
// Assert
context.Verify();
}
[Fact]
public void SetUpSessionStateUsesSessionStateValueFromStartPageHierarchy()
{
// Arrange
var page = new Mock<WebPage>(MockBehavior.Strict);
var startPage = new DefaultSessionWebPage
{
ChildPage = new ReadOnlySessionWebPage()
};
var webPageHttpHandler = new WebPageHttpHandler(page.Object, startPage: new Lazy<WebPageRenderingBase>(() => startPage));
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
context.Setup(c => c.SetSessionStateBehavior(SessionStateBehavior.ReadOnly)).Verifiable();
// Act
SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, new ConcurrentDictionary<Type, SessionStateBehavior?>());
// Assert
context.Verify();
}
[Fact]
public void SetUpSessionStateThrowsIfSessionStateValueIsInvalid()
{
// Arrange
var page = new Mock<WebPage>(MockBehavior.Strict);
var startPage = new InvalidSessionState();
var webPageHttpHandler = new WebPageHttpHandler(page.Object, startPage: new Lazy<WebPageRenderingBase>(() => startPage));
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
// Act
Assert.Throws<ArgumentException>(() => SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, new ConcurrentDictionary<Type, SessionStateBehavior?>()),
"Value \"jabberwocky\" specified in \"~/_Invalid.cshtml\" is an invalid value for the SessionState directive. Possible values are: \"Default, Required, ReadOnly, Disabled\".");
}
[Fact]
public void SetUpSessionStateThrowsIfMultipleSessionStateValueIsInvalid()
{
// Arrange
var page = new PageWithMultipleSesionStateAttributes();
var webPageHttpHandler = new WebPageHttpHandler(page, startPage: null);
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
// Act
Assert.Throws<InvalidOperationException>(() => SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, new ConcurrentDictionary<Type, SessionStateBehavior?>()),
"At most one SessionState value can be declared per page.");
}
[Fact]
public void SetUpSessionStateUsesCache()
{
// Arrange
var page = new PageWithBadAttribute();
var webPageHttpHandler = new WebPageHttpHandler(page, startPage: null);
var context = new Mock<HttpContextBase>(MockBehavior.Strict);
var dictionary = new ConcurrentDictionary<Type, SessionStateBehavior?>();
dictionary.TryAdd(webPageHttpHandler.GetType(), SessionStateBehavior.Default);
context.Setup(c => c.SetSessionStateBehavior(SessionStateBehavior.Default)).Verifiable();
// Act
SessionStateUtil.SetUpSessionState(context.Object, webPageHttpHandler, dictionary);
// Assert
context.Verify();
Assert.Throws<Exception>(() => page.GetType().GetCustomAttributes(inherit: false), "Can't call me!");
}
[RazorDirective("sessionstate", "disabled")]
private sealed class DisabledSessionWebPage : WebPage
{
public override void Execute()
{
throw new NotSupportedException();
}
}
[RazorDirective("sessionstate", "ReadOnly")]
private sealed class ReadOnlySessionWebPage : StartPage
{
public override void Execute()
{
throw new NotSupportedException();
}
}
[RazorDirective("SessionState", "Default")]
private sealed class DefaultSessionWebPage : StartPage
{
public override void Execute()
{
throw new NotSupportedException();
}
}
[RazorDirective("SessionState", "jabberwocky")]
private sealed class InvalidSessionState : StartPage
{
public override string VirtualPath
{
get
{
return "~/_Invalid.cshtml";
}
set
{
VirtualPath = value;
}
}
public override void Execute()
{
throw new NotSupportedException();
}
}
private sealed class BadAttribute : Attribute
{
public BadAttribute()
{
throw new Exception("Can't call me!");
}
}
[RazorDirective("SessionState", "Default"), Bad]
private sealed class PageWithBadAttribute : WebPage
{
public override void Execute()
{
throw new NotSupportedException();
}
}
[RazorDirective("SessionState", "Disabled"), RazorDirective("SessionState", "ReadOnly")]
private sealed class PageWithMultipleSesionStateAttributes : WebPage
{
public override void Execute()
{
throw new NotSupportedException();
}
}
}
}
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