94 lines
3.7 KiB
C#
94 lines
3.7 KiB
C#
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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System.Linq.Expressions;
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using System.Reflection;
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using Xunit;
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namespace System.Web.Mvc.ExpressionUtil.Test
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{
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public class BinaryExpressionFingerprintTest
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{
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[Fact]
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public void Properties()
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{
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// Arrange
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ExpressionType expectedNodeType = ExpressionType.Add;
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Type expectedType = typeof(DateTime);
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MethodInfo expectedMethod = typeof(DateTime).GetMethod("op_Addition", new Type[] { typeof(DateTime), typeof(TimeSpan) });
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// Act
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BinaryExpressionFingerprint fingerprint = new BinaryExpressionFingerprint(expectedNodeType, expectedType, expectedMethod);
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// Assert
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Assert.Equal(expectedNodeType, fingerprint.NodeType);
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Assert.Equal(expectedType, fingerprint.Type);
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Assert.Equal(expectedMethod, fingerprint.Method);
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}
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[Fact]
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public void Comparison_Equality()
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{
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// Arrange
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ExpressionType nodeType = ExpressionType.Add;
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Type type = typeof(DateTime);
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MethodInfo method = typeof(DateTime).GetMethod("op_Addition", new Type[] { typeof(DateTime), typeof(TimeSpan) });
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// Act
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BinaryExpressionFingerprint fingerprint1 = new BinaryExpressionFingerprint(nodeType, type, method);
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BinaryExpressionFingerprint fingerprint2 = new BinaryExpressionFingerprint(nodeType, type, method);
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// Assert
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Assert.Equal(fingerprint1, fingerprint2);
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Assert.Equal(fingerprint1.GetHashCode(), fingerprint2.GetHashCode());
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}
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[Fact]
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public void Comparison_Inequality_FingerprintType()
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{
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// Arrange
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ExpressionType nodeType = ExpressionType.Add;
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Type type = typeof(DateTime);
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MethodInfo method = typeof(DateTime).GetMethod("op_Addition", new Type[] { typeof(DateTime), typeof(TimeSpan) });
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// Act
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BinaryExpressionFingerprint fingerprint1 = new BinaryExpressionFingerprint(nodeType, type, method);
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DummyExpressionFingerprint fingerprint2 = new DummyExpressionFingerprint(nodeType, type);
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// Assert
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Assert.NotEqual<ExpressionFingerprint>(fingerprint1, fingerprint2);
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}
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[Fact]
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public void Comparison_Inequality_Method()
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{
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// Arrange
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ExpressionType nodeType = ExpressionType.Add;
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Type type = typeof(DateTime);
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MethodInfo method = typeof(DateTime).GetMethod("op_Addition", new Type[] { typeof(DateTime), typeof(TimeSpan) });
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// Act
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BinaryExpressionFingerprint fingerprint1 = new BinaryExpressionFingerprint(nodeType, type, method);
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BinaryExpressionFingerprint fingerprint2 = new BinaryExpressionFingerprint(nodeType, type, null /* method */);
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// Assert
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Assert.NotEqual(fingerprint1, fingerprint2);
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}
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[Fact]
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public void Comparison_Inequality_Type()
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{
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// Arrange
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ExpressionType nodeType = ExpressionType.Add;
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Type type = typeof(DateTime);
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MethodInfo method = typeof(DateTime).GetMethod("op_Addition", new Type[] { typeof(DateTime), typeof(TimeSpan) });
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// Act
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BinaryExpressionFingerprint fingerprint1 = new BinaryExpressionFingerprint(nodeType, type, method);
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BinaryExpressionFingerprint fingerprint2 = new BinaryExpressionFingerprint(nodeType, typeof(object), method);
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// Assert
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Assert.NotEqual(fingerprint1, fingerprint2);
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}
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}
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}
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