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Always reuse transaction (#22362)

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This commit is contained in:
Jason Song
2023-01-08 09:34:58 +08:00
committed by GitHub
parent d42b52fcfa
commit 6135359a04
11 changed files with 104 additions and 42 deletions
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56
models/db/context_test.go
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@@ -25,8 +25,62 @@ func TestInTransaction(t *testing.T) {
assert.NoError(t, err)
defer committer.Close()
assert.True(t, db.InTransaction(ctx))
assert.Error(t, db.WithTx(ctx, func(ctx context.Context) error {
assert.NoError(t, db.WithTx(ctx, func(ctx context.Context) error {
assert.True(t, db.InTransaction(ctx))
return nil
}))
}
func TestTxContext(t *testing.T) {
assert.NoError(t, unittest.PrepareTestDatabase())
{ // create new transaction
ctx, committer, err := db.TxContext(db.DefaultContext)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
assert.NoError(t, committer.Commit())
}
{ // reuse the transaction created by TxContext and commit it
ctx, committer, err := db.TxContext(db.DefaultContext)
engine := db.GetEngine(ctx)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
{
ctx, committer, err := db.TxContext(ctx)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
assert.Equal(t, engine, db.GetEngine(ctx))
assert.NoError(t, committer.Commit())
}
assert.NoError(t, committer.Commit())
}
{ // reuse the transaction created by TxContext and close it
ctx, committer, err := db.TxContext(db.DefaultContext)
engine := db.GetEngine(ctx)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
{
ctx, committer, err := db.TxContext(ctx)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
assert.Equal(t, engine, db.GetEngine(ctx))
assert.NoError(t, committer.Close())
}
assert.NoError(t, committer.Close())
}
{ // reuse the transaction created by WithTx
assert.NoError(t, db.WithTx(db.DefaultContext, func(ctx context.Context) error {
assert.True(t, db.InTransaction(ctx))
{
ctx, committer, err := db.TxContext(ctx)
assert.NoError(t, err)
assert.True(t, db.InTransaction(ctx))
assert.NoError(t, committer.Commit())
}
return nil
}))
}
}