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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Linq.Expressions;
using Xunit;
namespace System.Web.Mvc.ExpressionUtil.Test
{
public class ParameterExpressionFingerprintTest
{
[Fact]
public void Properties()
{
// Arrange
ExpressionType expectedNodeType = ExpressionType.Parameter;
Type expectedType = typeof(object);
int expectedParameterIndex = 1;
// Act
ParameterExpressionFingerprint fingerprint = new ParameterExpressionFingerprint(expectedNodeType, expectedType, expectedParameterIndex);
// Assert
Assert.Equal(expectedNodeType, fingerprint.NodeType);
Assert.Equal(expectedType, fingerprint.Type);
Assert.Equal(expectedParameterIndex, fingerprint.ParameterIndex);
}
[Fact]
public void Comparison_Equality()
{
// Arrange
ExpressionType nodeType = ExpressionType.Parameter;
Type type = typeof(object);
int parameterIndex = 1;
// Act
ParameterExpressionFingerprint fingerprint1 = new ParameterExpressionFingerprint(nodeType, type, parameterIndex);
ParameterExpressionFingerprint fingerprint2 = new ParameterExpressionFingerprint(nodeType, type, parameterIndex);
// Assert
Assert.Equal(fingerprint1, fingerprint2);
Assert.Equal(fingerprint1.GetHashCode(), fingerprint2.GetHashCode());
}
[Fact]
public void Comparison_Inequality_FingerprintType()
{
// Arrange
ExpressionType nodeType = ExpressionType.Parameter;
Type type = typeof(object);
int parameterIndex = 1;
// Act
ParameterExpressionFingerprint fingerprint1 = new ParameterExpressionFingerprint(nodeType, type, parameterIndex);
DummyExpressionFingerprint fingerprint2 = new DummyExpressionFingerprint(nodeType, type);
// Assert
Assert.NotEqual<ExpressionFingerprint>(fingerprint1, fingerprint2);
}
[Fact]
public void Comparison_Inequality_Method()
{
// Arrange
ExpressionType nodeType = ExpressionType.Parameter;
Type type = typeof(object);
int parameterIndex = 1;
// Act
ParameterExpressionFingerprint fingerprint1 = new ParameterExpressionFingerprint(nodeType, type, parameterIndex);
ParameterExpressionFingerprint fingerprint2 = new ParameterExpressionFingerprint(nodeType, type, -1 /* parameterIndex */);
// Assert
Assert.NotEqual(fingerprint1, fingerprint2);
}
[Fact]
public void Comparison_Inequality_Type()
{
// Arrange
ExpressionType nodeType = ExpressionType.Parameter;
Type type = typeof(object);
int parameterIndex = 1;
// Act
ParameterExpressionFingerprint fingerprint1 = new ParameterExpressionFingerprint(nodeType, type, parameterIndex);
ParameterExpressionFingerprint fingerprint2 = new ParameterExpressionFingerprint(nodeType, typeof(string), parameterIndex);
// Assert
Assert.NotEqual(fingerprint1, fingerprint2);
}
}
}