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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ActionDescriptorTest
{
[Fact]
public void ExtractParameterOrDefaultFromDictionary_ReturnsDefaultParameterValueIfMismatch()
{
// Arrange
Dictionary<string, object> dictionary = new Dictionary<string, object>()
{
{ "stringParameterWithDefaultValue", 42 }
};
// Act
object value = ActionDescriptor.ExtractParameterOrDefaultFromDictionary(ParameterExtractionController.StringParameterWithDefaultValue, dictionary);
// Assert
Assert.Equal("hello", value);
}
[Fact]
public void ExtractParameterOrDefaultFromDictionary_ReturnsDefaultTypeValueIfNoMatchAndNoDefaultParameterValue()
{
// Arrange
Dictionary<string, object> dictionary = new Dictionary<string, object>();
// Act
object value = ActionDescriptor.ExtractParameterOrDefaultFromDictionary(ParameterExtractionController.IntParameter, dictionary);
// Assert
Assert.Equal(0, value);
}
[Fact]
public void ExtractParameterOrDefaultFromDictionary_ReturnsDictionaryValueIfTypeMatch()
{
// Arrange
Dictionary<string, object> dictionary = new Dictionary<string, object>()
{
{ "stringParameterNoDefaultValue", "someValue" }
};
// Act
object value = ActionDescriptor.ExtractParameterOrDefaultFromDictionary(ParameterExtractionController.StringParameterNoDefaultValue, dictionary);
// Assert
Assert.Equal("someValue", value);
}
[Fact]
public void GetCustomAttributesReturnsEmptyArrayOfAttributeType()
{
// Arrange
ActionDescriptor ad = GetActionDescriptor();
// Act
ObsoleteAttribute[] attrs = (ObsoleteAttribute[])ad.GetCustomAttributes(typeof(ObsoleteAttribute), true);
// Assert
Assert.Empty(attrs);
}
[Fact]
public void GetCustomAttributesThrowsIfAttributeTypeIsNull()
{
// Arrange
ActionDescriptor ad = GetActionDescriptor();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { ad.GetCustomAttributes(null /* attributeType */, true); }, "attributeType");
}
[Fact]
public void GetCustomAttributesWithoutAttributeTypeCallsGetCustomAttributesWithAttributeType()
{
// Arrange
object[] expected = new object[0];
Mock<ActionDescriptor> mockDescriptor = new Mock<ActionDescriptor>() { CallBase = true };
mockDescriptor.Setup(d => d.GetCustomAttributes(typeof(object), true)).Returns(expected);
ActionDescriptor ad = mockDescriptor.Object;
// Act
object[] returned = ad.GetCustomAttributes(true /* inherit */);
// Assert
Assert.Same(expected, returned);
}
[Fact]
public void GetFilterAttributes_CallsGetCustomAttributes()
{
// Arrange
var mockDescriptor = new Mock<ActionDescriptor>() { CallBase = true };
mockDescriptor.Setup(d => d.GetCustomAttributes(typeof(FilterAttribute), true)).Returns(new object[] { new Mock<FilterAttribute>().Object }).Verifiable();
// Act
var result = mockDescriptor.Object.GetFilterAttributes(true).ToList();
// Assert
mockDescriptor.Verify();
Assert.Single(result);
}
[Fact]
public void GetSelectorsReturnsEmptyCollection()
{
// Arrange
ActionDescriptor ad = GetActionDescriptor();
// Act
ICollection<ActionSelector> selectors = ad.GetSelectors();
// Assert
Assert.IsType<ActionSelector[]>(selectors);
Assert.Empty(selectors);
}
[Fact]
public void IsDefinedReturnsFalse()
{
// Arrange
ActionDescriptor ad = GetActionDescriptor();
// Act
bool isDefined = ad.IsDefined(typeof(object), true);
// Assert
Assert.False(isDefined);
}
[Fact]
public void IsDefinedThrowsIfAttributeTypeIsNull()
{
// Arrange
ActionDescriptor ad = GetActionDescriptor();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { ad.IsDefined(null /* attributeType */, true); }, "attributeType");
}
[Fact]
public void UniqueId_SameTypeControllerDescriptorAndActionName_SameID()
{
// Arrange
var controllerDescriptor = new Mock<ControllerDescriptor>().Object;
var descriptor1 = new Mock<ActionDescriptor> { CallBase = true };
descriptor1.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor);
descriptor1.SetupGet(d => d.ActionName).Returns("Action1");
var descriptor2 = new Mock<ActionDescriptor> { CallBase = true };
descriptor2.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor);
descriptor2.SetupGet(d => d.ActionName).Returns("Action1");
// Act
var id1 = descriptor1.Object.UniqueId;
var id2 = descriptor2.Object.UniqueId;
// Assert
Assert.Equal(id1, id2);
}
[Fact]
public void UniqueId_VariesWithActionName()
{
// Arrange
var controllerDescriptor = new Mock<ControllerDescriptor>().Object;
var descriptor1 = new Mock<ActionDescriptor> { CallBase = true };
descriptor1.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor);
descriptor1.SetupGet(d => d.ActionName).Returns("Action1");
var descriptor2 = new Mock<ActionDescriptor> { CallBase = true };
descriptor2.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor);
descriptor2.SetupGet(d => d.ActionName).Returns("Action2");
// Act
var id1 = descriptor1.Object.UniqueId;
var id2 = descriptor2.Object.UniqueId;
// Assert
Assert.NotEqual(id1, id2);
}
[Fact]
public void UniqueId_VariesWithControllerDescriptorsUniqueId()
{
// Arrange
var controllerDescriptor1 = new Mock<ControllerDescriptor>();
controllerDescriptor1.SetupGet(cd => cd.UniqueId).Returns("1");
var descriptor1 = new Mock<ActionDescriptor> { CallBase = true };
descriptor1.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor1.Object);
descriptor1.SetupGet(d => d.ActionName).Returns("Action1");
var controllerDescriptor2 = new Mock<ControllerDescriptor>();
controllerDescriptor2.SetupGet(cd => cd.UniqueId).Returns("2");
var descriptor2 = new Mock<ActionDescriptor> { CallBase = true };
descriptor2.SetupGet(d => d.ControllerDescriptor).Returns(controllerDescriptor2.Object);
descriptor2.SetupGet(d => d.ActionName).Returns("Action1");
// Act
var id1 = descriptor1.Object.UniqueId;
var id2 = descriptor2.Object.UniqueId;
// Assert
Assert.NotEqual(id1, id2);
}
[Fact]
public void UniqueId_VariesWithActionDescriptorType()
{
// Arrange
var descriptor1 = new BaseDescriptor();
var descriptor2 = new DerivedDescriptor();
// Act
var id1 = descriptor1.UniqueId;
var id2 = descriptor2.UniqueId;
// Assert
Assert.NotEqual(id1, id2);
}
class BaseDescriptor : ActionDescriptor
{
static ControllerDescriptor controllerDescriptor = new Mock<ControllerDescriptor>().Object;
public override string ActionName
{
get { return "ActionName"; }
}
public override ControllerDescriptor ControllerDescriptor
{
get { return controllerDescriptor; }
}
public override object Execute(ControllerContext controllerContext, IDictionary<string, object> parameters)
{
throw new NotImplementedException();
}
public override ParameterDescriptor[] GetParameters()
{
throw new NotImplementedException();
}
}
class DerivedDescriptor : BaseDescriptor
{
}
private static ActionDescriptor GetActionDescriptor()
{
Mock<ActionDescriptor> mockDescriptor = new Mock<ActionDescriptor>() { CallBase = true };
return mockDescriptor.Object;
}
private class ParameterExtractionController : Controller
{
public static readonly ParameterInfo IntParameter = typeof(ParameterExtractionController).GetMethod("SomeMethod").GetParameters()[0];
public static readonly ParameterInfo StringParameterNoDefaultValue = typeof(ParameterExtractionController).GetMethod("SomeMethod").GetParameters()[1];
public static readonly ParameterInfo StringParameterWithDefaultValue = typeof(ParameterExtractionController).GetMethod("SomeMethod").GetParameters()[2];
public void SomeMethod(int intParameter, string stringParameterNoDefaultValue, [DefaultValue("hello")] string stringParameterWithDefaultValue)
{
}
}
}
}
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