// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 datanode

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

func Test_flushTaskCounter_getOrZero(t *testing.T) {
	c := newFlushTaskCounter()
	defer c.close()

	assert.Zero(t, c.getOrZero("non-exist"))

	n := 10
	channel := "channel"
	assert.Zero(t, c.getOrZero(channel))

	for i := 0; i < n; i++ {
		c.increase(channel)
	}
	assert.Equal(t, int32(n), c.getOrZero(channel))

	for i := 0; i < n; i++ {
		c.decrease(channel)
	}
	assert.Zero(t, c.getOrZero(channel))
}