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6f48a36227
Related: * #21362 This PR uses a general and stable method to generate resource index (eg: Issue Index, PR Index) If the code looks good, I can add more tests ps: please skip the diff, only have a look at the new code. It's entirely re-written. Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
128 lines
4.0 KiB
Go
128 lines
4.0 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package db_test
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import (
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"context"
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"errors"
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"fmt"
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"testing"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/unittest"
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"github.com/stretchr/testify/assert"
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)
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type TestIndex db.ResourceIndex
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func getCurrentResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
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e := db.GetEngine(ctx)
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var idx int64
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has, err := e.SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id=?", tableName), groupID).Get(&idx)
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if err != nil {
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return 0, err
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}
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if !has {
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return 0, errors.New("no record")
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}
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return idx, nil
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}
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func TestSyncMaxResourceIndex(t *testing.T) {
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assert.NoError(t, unittest.PrepareTestDatabase())
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xe := unittest.GetXORMEngine()
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assert.NoError(t, xe.Sync(&TestIndex{}))
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err := db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 51)
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assert.NoError(t, err)
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// sync new max index
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maxIndex, err := getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 51, maxIndex)
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// smaller index doesn't change
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err = db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 30)
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assert.NoError(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 51, maxIndex)
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// larger index changes
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err = db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 62)
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assert.NoError(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 62, maxIndex)
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// commit transaction
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err = db.WithTx(func(ctx context.Context) error {
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err = db.SyncMaxResourceIndex(ctx, "test_index", 10, 73)
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assert.NoError(t, err)
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maxIndex, err = getCurrentResourceIndex(ctx, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 73, maxIndex)
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return nil
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})
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assert.NoError(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 73, maxIndex)
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// rollback transaction
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err = db.WithTx(func(ctx context.Context) error {
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err = db.SyncMaxResourceIndex(ctx, "test_index", 10, 84)
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maxIndex, err = getCurrentResourceIndex(ctx, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 84, maxIndex)
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return errors.New("test rollback")
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})
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assert.Error(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
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assert.NoError(t, err)
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assert.EqualValues(t, 73, maxIndex) // the max index doesn't change because the transaction was rolled back
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}
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func TestGetNextResourceIndex(t *testing.T) {
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assert.NoError(t, unittest.PrepareTestDatabase())
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xe := unittest.GetXORMEngine()
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assert.NoError(t, xe.Sync(&TestIndex{}))
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// create a new record
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maxIndex, err := db.GetNextResourceIndex(db.DefaultContext, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 1, maxIndex)
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// increase the existing record
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maxIndex, err = db.GetNextResourceIndex(db.DefaultContext, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 2, maxIndex)
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// commit transaction
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err = db.WithTx(func(ctx context.Context) error {
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maxIndex, err = db.GetNextResourceIndex(ctx, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 3, maxIndex)
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return nil
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})
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assert.NoError(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 3, maxIndex)
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// rollback transaction
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err = db.WithTx(func(ctx context.Context) error {
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maxIndex, err = db.GetNextResourceIndex(ctx, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 4, maxIndex)
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return errors.New("test rollback")
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})
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assert.Error(t, err)
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maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 20)
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assert.NoError(t, err)
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assert.EqualValues(t, 3, maxIndex) // the max index doesn't change because the transaction was rolled back
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}
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