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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package db // it's not db_test, because this file is for testing the private type halfCommitter
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
type MockCommitter struct {
wants []string
gots []string
}
func NewMockCommitter(wants ...string) *MockCommitter {
return &MockCommitter{
wants: wants,
}
}
func (c *MockCommitter) Commit() error {
c.gots = append(c.gots, "commit")
return nil
}
func (c *MockCommitter) Close() error {
c.gots = append(c.gots, "close")
return nil
}
func (c *MockCommitter) Assert(t *testing.T) {
assert.Equal(t, c.wants, c.gots, "want operations %v, but got %v", c.wants, c.gots)
}
func Test_halfCommitter(t *testing.T) {
/*
Do something like:
ctx, committer, err := db.TxContext(db.DefaultContext)
if err != nil {
return nil
}
defer committer.Close()
// ...
if err != nil {
return nil
}
// ...
return committer.Commit()
*/
testWithCommitter := func(committer Committer, f func(committer Committer) error) {
if err := f(&halfCommitter{committer: committer}); err == nil {
committer.Commit()
}
committer.Close()
}
t.Run("commit and close", func(t *testing.T) {
mockCommitter := NewMockCommitter("commit", "close")
testWithCommitter(mockCommitter, func(committer Committer) error {
defer committer.Close()
return committer.Commit()
})
mockCommitter.Assert(t)
})
t.Run("rollback and close", func(t *testing.T) {
mockCommitter := NewMockCommitter("close", "close")
testWithCommitter(mockCommitter, func(committer Committer) error {
defer committer.Close()
if true {
return fmt.Errorf("error")
}
return committer.Commit()
})
mockCommitter.Assert(t)
})
t.Run("close and commit", func(t *testing.T) {
mockCommitter := NewMockCommitter("close", "close")
testWithCommitter(mockCommitter, func(committer Committer) error {
committer.Close()
committer.Commit()
return fmt.Errorf("error")
})
mockCommitter.Assert(t)
})
}
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