// Copyright 2014 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package metric

import (
	"testing"

	"github.com/prometheus/client_golang/model"
)

// TestValueAtTimeListGet tests if the timestamp is set properly in the op
// retrieved from the free list and if the 'consumed' member is zeroed properly.
func TestValueAtTimeListGet(t *testing.T) {
	l := newValueAtTimeList(1)
	op := l.Get(&model.Fingerprint{}, 42)
	op.consumed = true
	l.Give(op)

	op2 := l.Get(&model.Fingerprint{}, 4711)
	if op2.Consumed() {
		t.Error("Op retrieved from freelist is already consumed.")
	}
	if got, expected := op2.CurrentTime(), model.Timestamp(4711); got != expected {
		t.Errorf("op2.CurrentTime() = %d; want %d.", got, expected)
	}
}