public void TestBatch()
{
Assert.Throws <ArgumentNullException>(() => EnumerableExtensions.Batch <object>(null, 1).ToArray());
Assert.Throws <ArgumentOutOfRangeException>(() => EnumerableExtensions.Batch(new object[0], -1).ToArray());
var list = new List <int> {
1, 2, 3, 4, 5, 6, 7
};
CollectionAssert.AreEquivalent(new[]
{
new[] { 1, 2, 3 },
new[] { 4, 5, 6 },
new[] { 7 }
}, list.Batch(3));
}