1 // ***********************************************************************
2 // Copyright (c) 2008 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 /// Operator that tests that an exception is thrown and
33 /// optionally applies further tests to the exception.
35 public class ThrowsOperator : SelfResolvingOperator
38 /// Construct a ThrowsOperator
40 public ThrowsOperator()
42 // ThrowsOperator stacks on everything but
43 // it's always the first item on the stack
44 // anyway. It is evaluated last of all ops.
45 this.left_precedence = 1;
46 this.right_precedence = 100;
50 /// Reduce produces a constraint from the operator and
51 /// any arguments. It takes the arguments from the constraint
52 /// stack and pushes the resulting constraint on it.
54 public override void Reduce(ConstraintBuilder.ConstraintStack stack)
56 if (RightContext == null || RightContext is BinaryOperator)
57 stack.Push(new ThrowsExceptionConstraint());
59 stack.Push(new ThrowsConstraint(stack.Pop()));