public void ConcatWithNullHead()
{
var tail = new[] { "second", "third" };
string head = null;
var whole = MoreEnumerable.Concat(head, tail);
whole.AssertSequenceEqual(null, "second", "third");
}
public void ConcatWithEmptyTailSequence()
{
string[] tail = { };
var head = "first";
var whole = MoreEnumerable.Concat(head, tail);
whole.AssertSequenceEqual("first");
}
public void ConcatWithNonEmptyTailSequence()
{
var tail = new[] { "second", "third" };
var head = "first";
var whole = MoreEnumerable.Concat(head, tail);
whole.AssertSequenceEqual("first", "second", "third");
}
public void ConcatIsLazyInTailSequence()
{
MoreEnumerable.Concat("head", new BreakingSequence <string>());
}
public void ConcatWithNullHeadSequence()
{
MoreEnumerable.Concat(null, "tail");
}
public void ConcatWithNullTailSequence()
{
MoreEnumerable.Concat("head", null);
}
public void ConcatWithNullHeadSequence()
{
Assert.ThrowsArgumentNullException("head", () =>
MoreEnumerable.Concat(null, "tail"));
}