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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 System.Reflection;
using Xunit;
namespace System.Web.Mvc.ExpressionUtil.Test
{
public class IndexExpressionFingerprintTest
{
[Fact]
public void Properties()
{
// Arrange
ExpressionType expectedNodeType = ExpressionType.Index;
Type expectedType = typeof(char);
PropertyInfo expectedIndexer = typeof(string).GetProperty("Chars");
// Act
IndexExpressionFingerprint fingerprint = new IndexExpressionFingerprint(expectedNodeType, expectedType, expectedIndexer);
// Assert
Assert.Equal(expectedNodeType, fingerprint.NodeType);
Assert.Equal(expectedType, fingerprint.Type);
Assert.Equal(expectedIndexer, fingerprint.Indexer);
}
[Fact]
public void Comparison_Equality()
{
// Arrange
ExpressionType nodeType = ExpressionType.Index;
Type type = typeof(char);
PropertyInfo indexer = typeof(string).GetProperty("Chars");
// Act
IndexExpressionFingerprint fingerprint1 = new IndexExpressionFingerprint(nodeType, type, indexer);
IndexExpressionFingerprint fingerprint2 = new IndexExpressionFingerprint(nodeType, type, indexer);
// Assert
Assert.Equal(fingerprint1, fingerprint2);
Assert.Equal(fingerprint1.GetHashCode(), fingerprint2.GetHashCode());
}
[Fact]
public void Comparison_Inequality_FingerprintType()
{
// Arrange
ExpressionType nodeType = ExpressionType.Index;
Type type = typeof(char);
PropertyInfo indexer = typeof(string).GetProperty("Chars");
// Act
IndexExpressionFingerprint fingerprint1 = new IndexExpressionFingerprint(nodeType, type, indexer);
DummyExpressionFingerprint fingerprint2 = new DummyExpressionFingerprint(nodeType, type);
// Assert
Assert.NotEqual<ExpressionFingerprint>(fingerprint1, fingerprint2);
}
[Fact]
public void Comparison_Inequality_Indexer()
{
// Arrange
ExpressionType nodeType = ExpressionType.Index;
Type type = typeof(char);
PropertyInfo indexer = typeof(string).GetProperty("Chars");
// Act
IndexExpressionFingerprint fingerprint1 = new IndexExpressionFingerprint(nodeType, type, indexer);
IndexExpressionFingerprint fingerprint2 = new IndexExpressionFingerprint(nodeType, type, null /* indexer */);
// Assert
Assert.NotEqual(fingerprint1, fingerprint2);
}
[Fact]
public void Comparison_Inequality_Type()
{
// Arrange
ExpressionType nodeType = ExpressionType.Index;
Type type = typeof(char);
PropertyInfo indexer = typeof(string).GetProperty("Chars");
// Act
IndexExpressionFingerprint fingerprint1 = new IndexExpressionFingerprint(nodeType, type, indexer);
IndexExpressionFingerprint fingerprint2 = new IndexExpressionFingerprint(nodeType, typeof(object), indexer);
// Assert
Assert.NotEqual(fingerprint1, fingerprint2);
}
}
}
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