// Copyright 2014 by Sascha L. Teichmann
// Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.

package common

import (
	"math/rand"
	"testing"
)

func TestSpans(t *testing.T) {

	inp := make([]int32, 3000)
	for i, n := 0, len(inp); i < n; i++ {
		inp[i] = int32(i)
	}
	for i, n := 0, len(inp); i < n; i++ {
		i1 := rand.Int31n(int32(n))
		i2 := rand.Int31n(int32(n))
		inp[i1], inp[i2] = inp[i2], inp[i1]
	}

	sp := NewSpanPool()
	var s *Span
	for i, n := 0, len(inp); i < n; i++ {
		s = sp.Insert(s, inp[i], 42)
	}

	if n := s.Len(); n != 1 {
		t.Errorf("Span length %d expected 1\n", n)
		t.Errorf("spans: %s\n", s)
	}

	sp.FreeAll(s)
}