// 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 util

import (
	"testing"

	"github.com/stretchr/testify/assert"

	"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
)

func TestRateCollector(t *testing.T) {
	t.Run("test FlowGraphTt", func(t *testing.T) {
		collector, err := newRateCollector()
		assert.NoError(t, err)

		c, minTt := collector.GetMinFlowGraphTt()
		assert.Equal(t, "", c)
		assert.Equal(t, typeutil.MaxTimestamp, minTt)
		collector.UpdateFlowGraphTt("channel1", 100)
		collector.UpdateFlowGraphTt("channel2", 200)
		collector.UpdateFlowGraphTt("channel3", 50)
		c, minTt = collector.GetMinFlowGraphTt()
		assert.Equal(t, "channel3", c)
		assert.Equal(t, typeutil.Timestamp(50), minTt)
	})
}
