public void FirstIndexEquelsFixture() { var list = new[] { 5, 4, 3, 2, 1 }; list.FirstIndex(x=>x==2).Should().Equal(3); list.FirstIndex(x=>x==6).Should().Equal(-1); }
public void FirstIndexTest() { var enumerable = new[] {"a", "b", "b", "d"}; Assert.Throws<ArgumentException>(() => enumerable.FirstIndex(s => false)); Assert.AreEqual(1, enumerable.FirstIndex(s => s == "b")); }