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
30 using System.Collections;
31 using System.Collections.Generic;
32 using NUnit.Framework.Interfaces;
34 namespace NUnit.Framework.Internal.Builders
37 /// CombinatorialStrategy creates test cases by using all possible
38 /// combinations of the parameter data.
40 public class CombinatorialStrategy : ICombiningStrategy
43 /// Gets the test cases generated by the CombiningStrategy.
45 /// <returns>The test cases.</returns>
46 public IEnumerable<ITestCaseData> GetTestCases(IEnumerable[] sources)
48 List<ITestCaseData> testCases = new List<ITestCaseData>();
49 IEnumerator[] enumerators = new IEnumerator[sources.Length];
54 while (++index < sources.Length)
56 enumerators[index] = sources[index].GetEnumerator();
57 if (!enumerators[index].MoveNext())
61 object[] testdata = new object[sources.Length];
63 for (int i = 0; i < sources.Length; i++)
64 testdata[i] = enumerators[i].Current;
66 TestCaseParameters parms = new TestCaseParameters(testdata);
69 index = sources.Length;
71 while (--index >= 0 && !enumerators[index].MoveNext()) ;