1 // ***********************************************************************
2 // Copyright (c) 2007 Charlie Poole
4 // Permission is hereby granted, free of charge, to any person obtaining
5 // a copy of this software and associated documentation files (the
6 // "Software"), to deal in the Software without restriction, including
7 // without limitation the rights to use, copy, modify, merge, publish,
8 // distribute, sublicense, and/or sell copies of the Software, and to
9 // permit persons to whom the Software is furnished to do so, subject to
10 // the following conditions:
12 // The above copyright notice and this permission notice shall be
13 // included in all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 // ***********************************************************************
25 #define NUNIT_FRAMEWORK
29 namespace NUnit.Framework.Constraints
32 /// Abstract base class used for prefixes
34 public abstract class PrefixConstraint : Constraint
37 /// The base constraint
39 protected IConstraint BaseConstraint { get; set; }
42 /// Prefix used in forming the constraint description
44 protected string DescriptionPrefix { get; set; }
47 /// Construct given a base constraint
49 /// <param name="baseConstraint"></param>
50 protected PrefixConstraint(IResolveConstraint baseConstraint)
51 : base(baseConstraint)
53 Guard.ArgumentNotNull(baseConstraint, "baseConstraint");
55 BaseConstraint = baseConstraint.Resolve();
59 /// The Description of what this constraint tests, for
60 /// use in messages and in the ConstraintResult.
62 public override string Description
67 BaseConstraint is EqualConstraint ? "{0} equal to {1}" : "{0} {1}",
69 BaseConstraint.Description);