public void GetAllMutations_EmptyDictionary_ReturnsEmptyResult()
{
MutationFinder finder = new MutationFinder(new MutationCheckerAlwaysFalse());
List<string> result = finder.GetAllMutations("", new List<string>());
Assert.That(result.Count, Is.EqualTo(0));
}
public void GetAllMutations_ForDictionaryWithTenElementsAndThreeValidMutations_ReturnThreeElements()
{
var checker = new MutationChecker();
MutationFinder finder = new MutationFinder(checker);
var sourceDict = new List<string> { "cot", "bat", "fat", "aaa", "bbb", "ccc", "ddd", "eee", "fff", "xxx" };
List<string> result = finder.GetAllMutations("cat", sourceDict);
Assert.That(result.Count, Is.EqualTo(3));
}
public void GetAllMutations_ForDictionaryOfValidMutations_ReturnAllElements()
{
var checker = new MutationCheckerAlwaysTrue();
MutationFinder finder = new MutationFinder(checker);
var sourceDict = new List<string> { "cot", "bat" };
List<string> result = finder.GetAllMutations("cat", sourceDict);
Assert.That(result.Count, Is.EqualTo(sourceDict.Count));
}
public void GetAllMuations_NotEmptyDictionary_MutationCheckerIsCalled()
{
var checker = new MutationCheckerAlwaysFalse();
MutationFinder finder = new MutationFinder(checker);
List<string> result = finder.GetAllMutations("cat", new List<string> { "hello", "eins" });
Assert.That(checker.WasCalled, Is.True);
}