forgejo/models/unittest/fixtures.go

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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package unittest
import (
"fmt"
"os"
"time"
"code.gitea.io/gitea/models/db"
"github.com/go-testfixtures/testfixtures/v3"
"xorm.io/xorm"
"xorm.io/xorm/schemas"
)
var fixtures *testfixtures.Loader
// GetXORMEngine gets the XORM engine
func GetXORMEngine(engine ...*xorm.Engine) (x *xorm.Engine) {
if len(engine) == 1 {
return engine[0]
}
return db.DefaultContext.(*db.Context).Engine().(*xorm.Engine)
}
// InitFixtures initialize test fixtures for a test database
func InitFixtures(opts FixturesOptions, engine ...*xorm.Engine) (err error) {
e := GetXORMEngine(engine...)
var testfiles func(*testfixtures.Loader) error
if opts.Dir != "" {
testfiles = testfixtures.Directory(opts.Dir)
} else {
testfiles = testfixtures.Files(opts.Files...)
}
dialect := "unknown"
switch e.Dialect().URI().DBType {
case schemas.POSTGRES:
dialect = "postgres"
case schemas.MYSQL:
dialect = "mysql"
case schemas.MSSQL:
dialect = "mssql"
case schemas.SQLITE:
dialect = "sqlite3"
default:
fmt.Println("Unsupported RDBMS for integration tests")
os.Exit(1)
}
loaderOptions := []func(loader *testfixtures.Loader) error{
testfixtures.Database(e.DB().DB),
testfixtures.Dialect(dialect),
testfixtures.DangerousSkipTestDatabaseCheck(),
testfiles,
}
if e.Dialect().URI().DBType == schemas.POSTGRES {
loaderOptions = append(loaderOptions, testfixtures.SkipResetSequences())
}
fixtures, err = testfixtures.New(loaderOptions...)
if err != nil {
return err
}
return err
}
// LoadFixtures load fixtures for a test database
func LoadFixtures(engine ...*xorm.Engine) error {
e := GetXORMEngine(engine...)
var err error
// Database transaction conflicts could occur and result in ROLLBACK
// As a simple workaround, we just retry 20 times.
for i := 0; i < 20; i++ {
err = fixtures.Load()
if err == nil {
break
}
time.Sleep(200 * time.Millisecond)
}
if err != nil {
fmt.Printf("LoadFixtures failed after retries: %v\n", err)
}
// Now if we're running postgres we need to tell it to update the sequences
if e.Dialect().URI().DBType == schemas.POSTGRES {
results, err := e.QueryString(`SELECT 'SELECT SETVAL(' ||
quote_literal(quote_ident(PGT.schemaname) || '.' || quote_ident(S.relname)) ||
', COALESCE(MAX(' ||quote_ident(C.attname)|| '), 1) ) FROM ' ||
quote_ident(PGT.schemaname)|| '.'||quote_ident(T.relname)|| ';'
FROM pg_class AS S,
pg_depend AS D,
pg_class AS T,
pg_attribute AS C,
pg_tables AS PGT
WHERE S.relkind = 'S'
AND S.oid = D.objid
AND D.refobjid = T.oid
AND D.refobjid = C.attrelid
AND D.refobjsubid = C.attnum
AND T.relname = PGT.tablename
ORDER BY S.relname;`)
if err != nil {
fmt.Printf("Failed to generate sequence update: %v\n", err)
return err
}
for _, r := range results {
for _, value := range r {
_, err = e.Exec(value)
if err != nil {
fmt.Printf("Failed to update sequence: %s Error: %v\n", value, err)
return err
}
}
}
}
return err
}