public void Append_NulladditionalElements_ThrowsArgumentNullException()
{
IEnumerable <int> collection = Enumerable.Range(0, 10);
int[] additionalElements = null;
Assert.Throws <ArgumentNullException>(() => CollectionExtensions.Append(collection, additionalElements));
}
public void Append_WithTestCases_ProducesExpectedResults(string collectionString, string additionalElementsString, string expectedString)
{
List <int> collection = collectionString.Split(',').Where(s => !string.IsNullOrWhiteSpace(s)).Select(int.Parse).ToList();
int[] additionalElements = additionalElementsString.Split(',').Where(s => !string.IsNullOrWhiteSpace(s)).Select(int.Parse).ToArray();
int[] expected = expectedString.Split(',').Where(s => !string.IsNullOrWhiteSpace(s)).Select(int.Parse).ToArray();
var output = CollectionExtensions.Append(collection, additionalElements);
CollectionAssert.AreEqual(expected, output);
}
public void Append_NullCollection_ThrowsArgumentNullException()
{
IEnumerable <int> collection = null;
Assert.Throws <ArgumentNullException>(() => CollectionExtensions.Append(collection, 5));
}
