public void MaxBy()
{
var data = new[] { "A", "B", "C", "DZ" };
Assert.Throws<NullReferenceException> (() => ((IEnumerable<string>)null).MaxBy(x => x.Length));
Assert.Throws<NullReferenceException> (() => data.MaxBy<string, int>(null));
Assert.Throws<InvalidOperationException>(() => new string[0].MaxBy(x => x.Length));
Assert.Equal("DZ", data.MaxBy(x => x.Length));
Assert.Equal("A", data.Take(3).MaxBy(x => x.Length));
}
static void Main(string[] args)
{
var numbers = new[] { 2, 1, 5, 6, 9, 3, 7, 8, 4 };
var evenNumbersAbove3EnumerateAtOnce = numbers.Dump(true, "numbers")
.Where(x => x % 2 == 0).Dump(true, "Even")
.Where(x => x > 3).Dump(true, "gt3")
.Distinct().Dump(true, "Distinct")
.OrderBy(x => x).Dump(true, "Ordered");
Debug.WriteLine("------------------------------");
var evenNumbersAbove3LazyEval = numbers.Dump(false, "numbers")
.Where(x => x % 2 == 0).Dump(false, "Even")
.Where(x => x > 3).Dump(false, "gt3")
.Distinct().Dump(false, "Distinct")
.OrderBy(x => x).Dump(false, "Ordered").ToList();
Console.WriteLine("3 in numbers: " + 3.In(numbers));
Console.WriteLine("10 in numbers: " + 10.In(numbers));
Console.WriteLine("MaxBy:"+numbers.MaxBy(x => x));
Console.WriteLine("MinBy:" + numbers.MinBy(x => x));
Console.ReadKey();
}
public void Must_get_correct_item()
{
IEnumerable<string> items = new[]
{
"Test",
"By",
"Length"
};
Assert.That(items.MaxBy(arg => arg.Length), Is.EqualTo("Length"));
}
public void Must_retrieve_correct_object()
{
var systemUnderTest = new[]
{
"Test",
"Test1",
"Test2",
"Test10",
"Six",
"Four"
};
Assert.That(systemUnderTest.MaxBy(arg => arg.Length), Is.EqualTo("Test10"));
}
