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-rw-r--r--models/db/context_committer_test.go102
1 files changed, 102 insertions, 0 deletions
diff --git a/models/db/context_committer_test.go b/models/db/context_committer_test.go
new file mode 100644
index 0000000..38e91f2
--- /dev/null
+++ b/models/db/context_committer_test.go
@@ -0,0 +1,102 @@
+// 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)
+ })
+}