71 lines
2.5 KiB
Go
71 lines
2.5 KiB
Go
// Copyright 2018 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 domain
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import (
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"testing"
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"time"
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"github.com/pingcap/tidb/parser/terror"
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"github.com/stretchr/testify/require"
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"github.com/tikv/client-go/v2/txnkv/transaction"
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)
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func TestSchemaCheckerSimple(t *testing.T) {
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lease := 5 * time.Millisecond
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validator := NewSchemaValidator(lease, nil)
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checker := &SchemaChecker{SchemaValidator: validator}
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// Add some schema versions and delta table IDs.
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ts := uint64(time.Now().UnixNano())
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validator.Update(ts, 0, 2, &transaction.RelatedSchemaChange{PhyTblIDS: []int64{1}, ActionTypes: []uint64{1}})
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validator.Update(ts, 2, 4, &transaction.RelatedSchemaChange{PhyTblIDS: []int64{2}, ActionTypes: []uint64{2}})
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// checker's schema version is the same as the current schema version.
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checker.schemaVer = 4
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_, err := checker.Check(ts)
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require.NoError(t, err)
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// checker's schema version is less than the current schema version, and it doesn't exist in validator's items.
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// checker's related table ID isn't in validator's changed table IDs.
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checker.schemaVer = 2
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checker.relatedTableIDs = []int64{3}
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_, err = checker.Check(ts)
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require.NoError(t, err)
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// The checker's schema version isn't in validator's items.
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checker.schemaVer = 1
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checker.relatedTableIDs = []int64{3}
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_, err = checker.Check(ts)
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require.True(t, terror.ErrorEqual(err, ErrInfoSchemaChanged))
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// checker's related table ID is in validator's changed table IDs.
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checker.relatedTableIDs = []int64{2}
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_, err = checker.Check(ts)
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require.True(t, terror.ErrorEqual(err, ErrInfoSchemaChanged))
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// validator's latest schema version is expired.
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time.Sleep(lease + time.Microsecond)
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checker.schemaVer = 4
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checker.relatedTableIDs = []int64{3}
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_, err = checker.Check(ts)
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require.NoError(t, err)
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// Use checker.SchemaValidator.Check instead of checker.Check here because backoff make CI slow.
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nowTS := uint64(time.Now().UnixNano())
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_, result := checker.SchemaValidator.Check(nowTS, checker.schemaVer, checker.relatedTableIDs)
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require.Equal(t, ResultUnknown, result)
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}
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