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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 ConstantExpressionFingerprintTest
{
[Fact]
public void Properties()
{
// Arrange
ExpressionType expectedNodeType = ExpressionType.Constant;
Type expectedType = typeof(object);
// Act
ConstantExpressionFingerprint fingerprint = new ConstantExpressionFingerprint(expectedNodeType, expectedType);
// Assert
Assert.Equal(expectedNodeType, fingerprint.NodeType);
Assert.Equal(expectedType, fingerprint.Type);
}
[Fact]
public void Comparison_Equality()
{
// Arrange
ExpressionType nodeType = ExpressionType.Constant;
Type type = typeof(object);
// Act
ConstantExpressionFingerprint fingerprint1 = new ConstantExpressionFingerprint(nodeType, type);
ConstantExpressionFingerprint fingerprint2 = new ConstantExpressionFingerprint(nodeType, type);
// Assert
Assert.Equal(fingerprint1, fingerprint2);
Assert.Equal(fingerprint1.GetHashCode(), fingerprint2.GetHashCode());
}
[Fact]
public void Comparison_Inequality_FingerprintType()
{
// Arrange
ExpressionType nodeType = ExpressionType.Constant;
Type type = typeof(object);
// Act
ConstantExpressionFingerprint fingerprint1 = new ConstantExpressionFingerprint(nodeType, type);
DummyExpressionFingerprint fingerprint2 = new DummyExpressionFingerprint(nodeType, type);
// Assert
Assert.NotEqual<ExpressionFingerprint>(fingerprint1, fingerprint2);
}
[Fact]
public void Comparison_Inequality_Type()
{
// Arrange
ExpressionType nodeType = ExpressionType.Constant;
Type type = typeof(object);
// Act
ConstantExpressionFingerprint fingerprint1 = new ConstantExpressionFingerprint(nodeType, type);
ConstantExpressionFingerprint fingerprint2 = new ConstantExpressionFingerprint(nodeType, typeof(string));
// Assert
Assert.NotEqual(fingerprint1, fingerprint2);
}
}
}
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