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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.ComponentModel;
using System.Reflection;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ReflectedParameterDescriptorTest
{
[Fact]
public void ConstructorSetsActionDescriptorProperty()
{
// Arrange
ParameterInfo pInfo = typeof(MyController).GetMethod("Foo").GetParameters()[0];
ActionDescriptor ad = new Mock<ActionDescriptor>().Object;
// Act
ReflectedParameterDescriptor pd = new ReflectedParameterDescriptor(pInfo, ad);
// Assert
Assert.Same(ad, pd.ActionDescriptor);
}
[Fact]
public void ConstructorSetsParameterInfo()
{
// Arrange
ParameterInfo pInfo = typeof(MyController).GetMethod("Foo").GetParameters()[0];
// Act
ReflectedParameterDescriptor pd = new ReflectedParameterDescriptor(pInfo, new Mock<ActionDescriptor>().Object);
// Assert
Assert.Same(pInfo, pd.ParameterInfo);
}
[Fact]
public void ConstructorThrowsIfActionDescriptorIsNull()
{
// Act & assert
Assert.ThrowsArgumentNull(
delegate { new ReflectedParameterDescriptor(new Mock<ParameterInfo>().Object, null); }, "actionDescriptor");
}
[Fact]
public void ConstructorThrowsIfParameterInfoIsNull()
{
// Act & assert
Assert.ThrowsArgumentNull(
delegate { new ReflectedParameterDescriptor(null, new Mock<ActionDescriptor>().Object); }, "parameterInfo");
}
[Fact]
public void DefaultValuePropertyDefaultsToNull()
{
// Arrange
ParameterInfo pInfo = typeof(MyController).GetMethod("DefaultValues").GetParameters()[0]; // noDefaultValue
// Act
ReflectedParameterDescriptor pd = GetParameterDescriptor(pInfo);
// Assert
Assert.Null(pd.DefaultValue);
}
[Fact]
public void GetCustomAttributesCallsParameterInfoGetCustomAttributes()
{
// Arrange
object[] expected = new object[0];
Mock<ParameterInfo> mockParameter = new Mock<ParameterInfo>();
mockParameter.Setup(pi => pi.Member).Returns(new Mock<MemberInfo>().Object);
mockParameter.Setup(pi => pi.GetCustomAttributes(true)).Returns(expected);
ReflectedParameterDescriptor pd = GetParameterDescriptor(mockParameter.Object);
// Act
object[] returned = pd.GetCustomAttributes(true);
// Assert
Assert.Same(expected, returned);
}
[Fact]
public void GetCustomAttributesWithAttributeTypeCallsParameterInfoGetCustomAttributes()
{
// Arrange
object[] expected = new object[0];
Mock<ParameterInfo> mockParameter = new Mock<ParameterInfo>();
mockParameter.Setup(pi => pi.Member).Returns(new Mock<MemberInfo>().Object);
mockParameter.Setup(pi => pi.GetCustomAttributes(typeof(ObsoleteAttribute), true)).Returns(expected);
ReflectedParameterDescriptor pd = GetParameterDescriptor(mockParameter.Object);
// Act
object[] returned = pd.GetCustomAttributes(typeof(ObsoleteAttribute), true);
// Assert
Assert.Same(expected, returned);
}
[Fact]
public void IsDefinedCallsParameterInfoIsDefined()
{
// Arrange
Mock<ParameterInfo> mockParameter = new Mock<ParameterInfo>();
mockParameter.Setup(pi => pi.Member).Returns(new Mock<MemberInfo>().Object);
mockParameter.Setup(pi => pi.IsDefined(typeof(ObsoleteAttribute), true)).Returns(true);
ReflectedParameterDescriptor pd = GetParameterDescriptor(mockParameter.Object);
// Act
bool isDefined = pd.IsDefined(typeof(ObsoleteAttribute), true);
// Assert
Assert.True(isDefined);
}
[Fact]
public void ParameterNameProperty()
{
// Arrange
ParameterInfo pInfo = typeof(MyController).GetMethod("Foo").GetParameters()[0];
// Act
ReflectedParameterDescriptor pd = GetParameterDescriptor(pInfo);
// Assert
Assert.Equal("s1", pd.ParameterName);
}
[Fact]
public void ParameterTypeProperty()
{
// Arrange
ParameterInfo pInfo = typeof(MyController).GetMethod("Foo").GetParameters()[0];
// Act
ReflectedParameterDescriptor pd = GetParameterDescriptor(pInfo);
// Assert
Assert.Equal(typeof(string), pd.ParameterType);
}
private static ReflectedParameterDescriptor GetParameterDescriptor(ParameterInfo parameterInfo)
{
return new ReflectedParameterDescriptor(parameterInfo, new Mock<ActionDescriptor>().Object);
}
private class MyController : Controller
{
public void Foo(string s1)
{
}
public void DefaultValues(string noDefaultValue, [DefaultValue("someValue")] string hasDefaultValue)
{
}
}
}
}
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