51 lines
1.7 KiB
C#
51 lines
1.7 KiB
C#
// ****************************************************************
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// Copyright 2007, Charlie Poole
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// This is free software licensed under the NUnit license. You may
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// obtain a copy of the license at http://nunit.org/?p=license&r=2.4
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// ****************************************************************
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using System;
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namespace NUnit.Framework.Constraints
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{
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/// <summary>
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/// SameAsConstraint tests whether an object is identical to
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/// the object passed to its constructor
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/// </summary>
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public class SameAsConstraint : Constraint
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{
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private object expected;
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/// <summary>
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/// Initializes a new instance of the <see cref="T:SameAsConstraint"/> class.
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/// </summary>
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/// <param name="expected">The expected object.</param>
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public SameAsConstraint(object expected)
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{
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this.expected = expected;
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}
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/// <summary>
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/// Test whether the constraint is satisfied by a given value
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/// </summary>
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/// <param name="actual">The value to be tested</param>
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/// <returns>True for success, false for failure</returns>
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public override bool Matches(object actual)
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{
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this.actual = actual;
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return Object.ReferenceEquals(expected,actual);
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}
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/// <summary>
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/// Write the constraint description to a MessageWriter
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/// </summary>
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/// <param name="writer">The writer on which the description is displayed</param>
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public override void WriteDescriptionTo(MessageWriter writer)
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{
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writer.WritePredicate("same as");
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writer.WriteExpectedValue(expected);
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}
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}
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}
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