public void Given_MultiDimensionalArray_When_FoldingToSingleColumn_Then_CorrectValueReturned(
string[,] data, Func <string, string, string> foldFunction, string[] expectedResult)
{
string[] result = data.FoldToSingleColumn(foldFunction);
Assert.AreEqual(expectedResult, result, "Folded column should equal expected value");
}