// Copyright 2020 PingCAP, Inc.
//
// 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 executor_test

import (
	"context"
	"testing"

	"github.com/pingcap/tidb/executor"
	"github.com/pingcap/tidb/session"
	"github.com/pingcap/tidb/testkit"
	"github.com/stretchr/testify/require"
)

func TestInspectionRules(t *testing.T) {
	store, clean := testkit.CreateMockStore(t)
	defer clean()

	tk := testkit.NewTestKit(t, store)
	inspectionCount := len(executor.InspectionRules)
	summaryCount := len(executor.InspectionSummaryRules)
	var cases = []struct {
		sql       string
		ruleCount int
	}{
		{
			sql:       "select * from information_schema.inspection_rules",
			ruleCount: inspectionCount + summaryCount,
		},
		{
			sql:       "select * from information_schema.inspection_rules where type='inspection'",
			ruleCount: inspectionCount,
		},
		{
			sql:       "select * from information_schema.inspection_rules where type='summary'",
			ruleCount: summaryCount,
		},
		{
			sql:       "select * from information_schema.inspection_rules where type='inspection' and type='summary'",
			ruleCount: 0,
		},
	}

	for _, ca := range cases {
		rs, err := tk.Exec(ca.sql)
		require.NoError(t, err)
		rules, err := session.ResultSetToStringSlice(context.Background(), tk.Session(), rs)
		require.NoError(t, err)
		require.Len(t, rules, ca.ruleCount)
		require.NoError(t, rs.Close())
	}
}