// 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 healthcheck

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"

	"github.com/milvus-io/milvus/pkg/util/merr"
)

func TestChecker(t *testing.T) {
	expected1 := NewResult()
	expected1.AppendUnhealthyClusterMsg(NewUnhealthyClusterMsg("role1", 1, "msg1", ChannelsWatched))
	expected1.AppendUnhealthyClusterMsg(NewUnhealthyClusterMsg("role1", 1, "msg1", ChannelsWatched))

	expected1.AppendUnhealthyCollectionMsgs(&UnhealthyCollectionMsg{
		CollectionID: 1,
		Reason: &UnhealthyReason{
			UnhealthyMsg:   "msg2",
			UnhealthyLevel: Critical,
		},
	})

	checkFn := func() *Result {
		return expected1
	}
	checker := NewChecker(100*time.Millisecond, checkFn)
	go checker.Start()

	time.Sleep(150 * time.Millisecond)
	actual1 := checker.GetLatestCheckResult()
	assert.Equal(t, expected1, actual1)
	assert.False(t, actual1.IsHealthy())

	chr := GetCheckHealthResponseFromResult(actual1)
	assert.Equal(t, merr.Success(), chr.Status)
	assert.Equal(t, actual1.IsHealthy(), chr.IsHealthy)
	assert.Equal(t, 1, len(chr.Reasons))

	actualResult := GetHealthCheckResultFromResp(chr)
	assert.Equal(t, actual1, actualResult)
	checker.Close()
}