public void GroupBy_teilbar_durch_zwei() {
var values = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var groups = values.GroupBy(x => x % 2 == 0);
Assert.That(groups.First().Key, Is.False);
Assert.That(groups.First(), Is.EqualTo(new[] { 1, 3, 5, 7, 9 }));
Assert.That(groups, Is.EqualTo(new[] {new[] {1, 3, 5, 7, 9}, new[] {2, 4, 6, 8, 10}}));
}
public void GroupBy_Länge_des_Wortes() {
var values = new[] {"abc", "a", "ab", "a", "abc"};
var groups = values.GroupBy(x => x.Length);
Assert.That(groups, Is.EqualTo(new[]{new[]{"abc", "abc"}, new []{"a", "a"}, new[]{"ab"}}));
}
