public void OnResultExecuting_ItemsFlagSet_ReplacesOutputWriter()
{
// Arrange
TextWriter originalWriter = TextWriter.Null;
TextWriter newWriter = null;
Mock <ResultExecutingContext> mockFilterContext = new Mock <ResultExecutingContext>();
mockFilterContext.Expect(o => o.HttpContext.Items[It.IsAny <object>()]).Returns("theCacheKey");
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Returns(originalWriter);
mockFilterContext
.ExpectSet(o => o.HttpContext.Response.Output)
.Callback(w => { newWriter = w; });
// Act
ChildActionCacheAttribute attr = new ChildActionCacheAttribute()
{
Duration = 10
};
// Act
attr.OnResultExecuting(mockFilterContext.Object);
// Assert
ChildActionCacheAttribute.WrappedStringWriter stringWriter = newWriter as ChildActionCacheAttribute.WrappedStringWriter;
Assert.IsNotNull(stringWriter);
Assert.AreEqual(originalWriter, stringWriter.OriginalWriter);
}
public void OnActionExecuting_NotChildAction_DoesNothing()
{
// Arrange
Mock <ActionExecutingContext> mockFilterContext = new Mock <ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(false).Verifiable();
ChildActionCacheAttribute attr = new ChildActionCacheAttribute()
{
Duration = 10
};
// Act
attr.OnActionExecuting(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
}
public void OnActionExecuting_NegativeDuration_Throws()
{
// Arrange
Mock <ActionExecutingContext> mockFilterContext = new Mock <ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
ChildActionCacheAttribute attr = new ChildActionCacheAttribute()
{
Duration = -1
};
// Act & assert
ExceptionHelper.ExpectInvalidOperationException(
delegate {
attr.OnActionExecuting(mockFilterContext.Object);
},
@"The 'Duration' property must be a positive number.");
}
public void OnResultExecuting_ItemsFlagNotSet_DoesNothing()
{
// Arrange
Mock <ResultExecutingContext> mockFilterContext = new Mock <ResultExecutingContext>();
mockFilterContext.Expect(o => o.HttpContext.Items).Returns(new Hashtable()).Verifiable(); // empty hashtable has no keys set
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Never();
// Act
ChildActionCacheAttribute attr = new ChildActionCacheAttribute()
{
Duration = 10
};
// Act
attr.OnResultExecuting(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
}
public void OnActionExecuting_NotChildAction_DoesNothing() {
// Arrange
Mock<ActionExecutingContext> mockFilterContext = new Mock<ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(false).Verifiable();
ChildActionCacheAttribute attr = new ChildActionCacheAttribute() {
Duration = 10
};
// Act
attr.OnActionExecuting(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
}
public void OnActionExecuting_NegativeDuration_Throws() {
// Arrange
Mock<ActionExecutingContext> mockFilterContext = new Mock<ActionExecutingContext>();
mockFilterContext.Expect(o => o.IsChildAction).Returns(true);
ChildActionCacheAttribute attr = new ChildActionCacheAttribute() {
Duration = -1
};
// Act & assert
ExceptionHelper.ExpectInvalidOperationException(
delegate {
attr.OnActionExecuting(mockFilterContext.Object);
},
@"The 'Duration' property must be a positive number.");
}
public void OnResultExecuting_ItemsFlagSet_ReplacesOutputWriter() {
// Arrange
TextWriter originalWriter = TextWriter.Null;
TextWriter newWriter = null;
Mock<ResultExecutingContext> mockFilterContext = new Mock<ResultExecutingContext>();
mockFilterContext.Expect(o => o.HttpContext.Items[It.IsAny<object>()]).Returns("theCacheKey");
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Returns(originalWriter);
mockFilterContext
.ExpectSet(o => o.HttpContext.Response.Output)
.Callback(w => { newWriter = w; });
// Act
ChildActionCacheAttribute attr = new ChildActionCacheAttribute() {
Duration = 10
};
// Act
attr.OnResultExecuting(mockFilterContext.Object);
// Assert
ChildActionCacheAttribute.WrappedStringWriter stringWriter = newWriter as ChildActionCacheAttribute.WrappedStringWriter;
Assert.IsNotNull(stringWriter);
Assert.AreEqual(originalWriter, stringWriter.OriginalWriter);
}
public void OnResultExecuting_ItemsFlagNotSet_DoesNothing() {
// Arrange
Mock<ResultExecutingContext> mockFilterContext = new Mock<ResultExecutingContext>();
mockFilterContext.Expect(o => o.HttpContext.Items).Returns(new Hashtable()).Verifiable(); // empty hashtable has no keys set
mockFilterContext.Expect(o => o.HttpContext.Response.Output).Never();
// Act
ChildActionCacheAttribute attr = new ChildActionCacheAttribute() {
Duration = 10
};
// Act
attr.OnResultExecuting(mockFilterContext.Object);
// Assert
mockFilterContext.Verify();
}
