public void OnActionExecuting_CacheHit_ReturnsContentResult()
{
// Arrange
Mock <ActionExecutingContext> mockFilterContext = new Mock <ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
mockFilterContext.Expect(o => o.ActionDescriptor.ActionName).Returns("theActionName");
mockFilterContext.Expect(o => o.ActionDescriptor.ControllerDescriptor.ControllerName).Returns("theControllerName");
mockFilterContext.Expect(o => o.HttpContext.Items).Never();
mockFilterContext.Expect(o => o.HttpContext.Response.ContentEncoding).Returns(Encoding.UTF8);
mockFilterContext.Expect(o => o.ActionParameters).Returns(new Dictionary <string, object> {
{ "forty-two", 42 },
{ "eighty-four", 84 }
});
Mock <ITestableCache> mockCache = new Mock <ITestableCache>();
mockCache.Expect(o => o.GetCacheItem(It.IsAny <string>())).Returns("some cached content");
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object)
{
Duration = 10
};
// Act
ActionExecutingContext filterContext = mockFilterContext.Object;
attr.OnActionExecuting(filterContext);
// Assert
Assert.IsInstanceOfType(filterContext.Result, typeof(ContentResult));
Assert.AreEqual("some cached content", ((ContentResult)filterContext.Result).Content);
}
public void OnActionExecuting_CacheMiss_SetsFlagInItems() {
// Arrange
string expectedCacheKey = null;
Mock<ActionExecutingContext> mockFilterContext = new Mock<ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
mockFilterContext.Expect(o => o.ActionDescriptor.ActionName).Returns("theActionName");
mockFilterContext.Expect(o => o.ActionDescriptor.ControllerDescriptor.ControllerName).Returns("theControllerName");
mockFilterContext.Expect(o => o.HttpContext.Items).Returns(new Hashtable());
mockFilterContext.Expect(o => o.HttpContext.Response.ContentEncoding).Returns(Encoding.UTF8);
mockFilterContext.Expect(o => o.ActionParameters).Returns(new Dictionary<string, object> {
{ "forty-two", 42 },
{ "eighty-four", 84 }
});
Mock<ITestableCache> mockCache = new Mock<ITestableCache>();
mockCache
.Expect(o => o.GetCacheItem(It.IsAny<string>()))
.Callback((string cacheKey) => { expectedCacheKey = cacheKey; })
.Returns((object)null);
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object) {
Duration = 10
};
// Act
ActionExecutingContext filterContext = mockFilterContext.Object;
attr.OnActionExecuting(filterContext);
// Assert
Assert.IsNull(filterContext.Result, "Result shouldn't have been set if cache miss.");
Assert.AreEqual(expectedCacheKey, filterContext.HttpContext.Items.Values.Cast<object>().Single(), "Flag was not correctly set in HttpContext.Items.");
}
public void OnActionExecuting_CacheHit_ReturnsContentResult() {
// Arrange
Mock<ActionExecutingContext> mockFilterContext = new Mock<ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
mockFilterContext.Expect(o => o.ActionDescriptor.ActionName).Returns("theActionName");
mockFilterContext.Expect(o => o.ActionDescriptor.ControllerDescriptor.ControllerName).Returns("theControllerName");
mockFilterContext.Expect(o => o.HttpContext.Items).Never();
mockFilterContext.Expect(o => o.HttpContext.Response.ContentEncoding).Returns(Encoding.UTF8);
mockFilterContext.Expect(o => o.ActionParameters).Returns(new Dictionary<string, object> {
{ "forty-two", 42 },
{ "eighty-four", 84 }
});
Mock<ITestableCache> mockCache = new Mock<ITestableCache>();
mockCache.Expect(o => o.GetCacheItem(It.IsAny<string>())).Returns("some cached content");
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object) {
Duration = 10
};
// Act
ActionExecutingContext filterContext = mockFilterContext.Object;
attr.OnActionExecuting(filterContext);
// Assert
Assert.IsInstanceOfType(filterContext.Result, typeof(ContentResult));
Assert.AreEqual("some cached content", ((ContentResult)filterContext.Result).Content);
}
public void OnResultExecuted_ItemsFlagSet_Exception_DumpsContent_NoAddToCache()
{
// Arrange
TextWriter originalWriter = TextWriter.Null;
ChildActionCacheAttribute.WrappedStringWriter wrappedWriter = new ChildActionCacheAttribute.WrappedStringWriter(originalWriter);
wrappedWriter.Write("captured text");
Mock <ResultExecutedContext> mockFilterContext = new Mock <ResultExecutedContext>();
mockFilterContext.Expect(o => o.HttpContext.Items[It.IsAny <object>()]).Returns("theCacheKey");
mockFilterContext.Expect(o => o.Exception).Returns(new Exception("Sample exception."));
TextWriter currentResponseWriter = wrappedWriter;
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Returns(() => currentResponseWriter);
mockFilterContext
.ExpectSet(o => o.HttpContext.Response.Output)
.Callback(w => { currentResponseWriter = w; });
mockFilterContext
.Expect(o => o.HttpContext.Response.Write("captured text"))
.Callback(() => { Assert.AreEqual(originalWriter, currentResponseWriter, "Response.Write() called while wrong writer was active."); })
.AtMostOnce()
.Verifiable();
Mock <ITestableCache> mockCache = new Mock <ITestableCache>();
mockCache.Expect(o => o.SetCacheItem(It.IsAny <string>(), It.IsAny <string>())).Never();
// Act
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object)
{
Duration = 10
};
// Act
attr.OnResultExecuted(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
mockCache.Verify();
Assert.AreEqual(originalWriter, currentResponseWriter);
Assert.IsFalse(mockFilterContext.Object.ExceptionHandled, "Exception shouldn't have been marked as handled.");
}
public void OnActionExecuting_CacheMiss_SetsFlagInItems()
{
// Arrange
string expectedCacheKey = null;
Mock <ActionExecutingContext> mockFilterContext = new Mock <ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
mockFilterContext.Expect(o => o.ActionDescriptor.ActionName).Returns("theActionName");
mockFilterContext.Expect(o => o.ActionDescriptor.ControllerDescriptor.ControllerName).Returns("theControllerName");
mockFilterContext.Expect(o => o.HttpContext.Items).Returns(new Hashtable());
mockFilterContext.Expect(o => o.HttpContext.Response.ContentEncoding).Returns(Encoding.UTF8);
mockFilterContext.Expect(o => o.ActionParameters).Returns(new Dictionary <string, object> {
{ "forty-two", 42 },
{ "eighty-four", 84 }
});
Mock <ITestableCache> mockCache = new Mock <ITestableCache>();
mockCache
.Expect(o => o.GetCacheItem(It.IsAny <string>()))
.Callback((string cacheKey) => { expectedCacheKey = cacheKey; })
.Returns((object)null);
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object)
{
Duration = 10
};
// Act
ActionExecutingContext filterContext = mockFilterContext.Object;
attr.OnActionExecuting(filterContext);
// Assert
Assert.IsNull(filterContext.Result, "Result shouldn't have been set if cache miss.");
Assert.AreEqual(expectedCacheKey, filterContext.HttpContext.Items.Values.Cast <object>().Single(), "Flag was not correctly set in HttpContext.Items.");
}
public void OnResultExecuted_ItemsFlagSet_NoException_DumpsContentAndAddsToCache() {
// Arrange
TextWriter originalWriter = TextWriter.Null;
ChildActionCacheAttribute.WrappedStringWriter wrappedWriter = new ChildActionCacheAttribute.WrappedStringWriter(originalWriter);
wrappedWriter.Write("captured text");
Mock<ResultExecutedContext> mockFilterContext = new Mock<ResultExecutedContext>();
mockFilterContext.Expect(o => o.HttpContext.Items[It.IsAny<object>()]).Returns("theCacheKey");
mockFilterContext.Expect(o => o.Exception).Returns((Exception)null);
TextWriter currentResponseWriter = wrappedWriter;
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Returns(() => currentResponseWriter);
mockFilterContext
.ExpectSet(o => o.HttpContext.Response.Output)
.Callback(w => { currentResponseWriter = w; });
mockFilterContext
.Expect(o => o.HttpContext.Response.Write("captured text"))
.Callback(() => { Assert.AreEqual(originalWriter, currentResponseWriter, "Response.Write() called while wrong writer was active."); })
.AtMostOnce()
.Verifiable();
Mock<ITestableCache> mockCache = new Mock<ITestableCache>();
mockCache.Expect(o => o.SetCacheItem("theCacheKey", "captured text")).Verifiable();
// Act
ChildActionCacheAttribute attr = new TestableChildActionCacheAttribute(mockCache.Object) {
Duration = 10
};
// Act
attr.OnResultExecuted(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
mockCache.Verify();
Assert.AreEqual(originalWriter, currentResponseWriter);
}