Sort(Reverse(r))
	for i := 0; i < len(data); i++ {
		if a[i] != r[len(data)-1-i] {
			t.Errorf("reverse sort didn't sort")
		}
		if i > len(data)/2 {
			break
		}
	}
}

func TestBreakPatterns(t *testing.T) {
	// Special slice used to trigger breakPatterns.
	data := make([]int, 30)
	for i := range data {
		data[i] = 10
	}
	data[(len(data)/4)*1] = 0
	data[(len(data)/4)*2] = 1