C# (CSharp) MoreEnumerable.FallbackIfEmpty示例

示例#1

 public void FallbackIfEmptyWithNullSequence()
 {
     Assert.ThrowsArgumentNullException("source", () => MoreEnumerable.FallbackIfEmpty(null, 1));
     Assert.ThrowsArgumentNullException("source", () => MoreEnumerable.FallbackIfEmpty(null, 1, 2));
     Assert.ThrowsArgumentNullException("source", () => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3));
     Assert.ThrowsArgumentNullException("source", () => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3, 4));
     Assert.ThrowsArgumentNullException("source", () => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3, 4, 5));
 }

示例#2

文件： FallbackIfEmptyTest.cs 项目： vcnwafor/MoreLINQ

 public void FallbackIfEmptyWithNullSequence()
 {
     Assert.AreEqual("source", Assert.Throws <ArgumentNullException>(() => MoreEnumerable.FallbackIfEmpty(null, 1)).ParamName);
     Assert.AreEqual("source", Assert.Throws <ArgumentNullException>(() => MoreEnumerable.FallbackIfEmpty(null, 1, 2)).ParamName);
     Assert.AreEqual("source", Assert.Throws <ArgumentNullException>(() => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3)).ParamName);
     Assert.AreEqual("source", Assert.Throws <ArgumentNullException>(() => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3, 4)).ParamName);
     Assert.AreEqual("source", Assert.Throws <ArgumentNullException>(() => MoreEnumerable.FallbackIfEmpty(null, 1, 2, 3, 4, 5)).ParamName);
 }