86 lines
2.4 KiB
Go
86 lines
2.4 KiB
Go
// Copyright 2021 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor
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import (
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gjson "encoding/json"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/store/helper"
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"github.com/pingcap/tidb/types/json"
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)
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var _ = SerialSuites(&testShowPlacementLabelSuit{})
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type testShowPlacementLabelSuit struct {
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}
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func (s *testShowPlacementLabelSuit) TestShowPlacementLabelsBuilder(c *C) {
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cases := []struct {
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stores [][]*helper.StoreLabel
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expects [][]interface{}
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}{
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{
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stores: nil,
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expects: nil,
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},
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{
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stores: [][]*helper.StoreLabel{
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{{Key: "zone", Value: "z1"}, {Key: "rack", Value: "r3"}, {Key: "host", Value: "h1"}},
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{{Key: "zone", Value: "z1"}, {Key: "rack", Value: "r1"}, {Key: "host", Value: "h2"}},
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{{Key: "zone", Value: "z1"}, {Key: "rack", Value: "r2"}, {Key: "host", Value: "h2"}},
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{{Key: "zone", Value: "z2"}, {Key: "rack", Value: "r1"}, {Key: "host", Value: "h2"}},
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nil,
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{{Key: "k1", Value: "v1"}},
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},
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expects: [][]interface{}{
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{"host", []string{"h1", "h2"}},
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{"k1", []string{"v1"}},
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{"rack", []string{"r1", "r2", "r3"}},
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{"zone", []string{"z1", "z2"}},
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},
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},
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}
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b := &showPlacementLabelsResultBuilder{}
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toBinaryJSON := func(obj interface{}) (bj json.BinaryJSON) {
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d, err := gjson.Marshal(obj)
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c.Assert(err, IsNil)
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err = bj.UnmarshalJSON(d)
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c.Assert(err, IsNil)
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return
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}
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for _, ca := range cases {
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for _, store := range ca.stores {
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bj := toBinaryJSON(store)
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err := b.AppendStoreLabels(bj)
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c.Assert(err, IsNil)
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}
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rows, err := b.BuildRows()
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c.Assert(err, IsNil)
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c.Assert(len(rows), Equals, len(ca.expects))
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for idx, expect := range ca.expects {
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row := rows[idx]
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bj := toBinaryJSON(expect[1])
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c.Assert(row[0].(string), Equals, expect[0].(string))
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c.Assert(row[1].(json.BinaryJSON).TypeCode, Equals, bj.TypeCode)
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c.Assert(row[1].(json.BinaryJSON).Value, BytesEquals, bj.Value)
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}
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}
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}
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