Cadenza.Collections.Tests.EnumerableTest.Subsets_MoreThan63Items C# (CSharp) Метод

		public void Subsets_MoreThan63Items()
		{
			IEnumerable<int> a = 1.UpTo(62);
			IEnumerable<int> b = 1.UpTo(63);
			IEnumerable<int> c = 1.UpTo(64);

			int[] expectedFirstResult = { 1 };

			//boundry tests
			CollectionAssert.AreEqual(expectedFirstResult, a.Subsets().First());
			CollectionAssert.AreEqual(expectedFirstResult, b.Subsets().First());

			var ex = Assert.Throws<InvalidOperationException>(() => c.Subsets().First());
			Assert.AreEqual("Cannot create subsets for more than 63 items, the source contained 64 items", ex.Message);
		}