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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package unittest
import (
"database/sql"
"encoding/hex"
"fmt"
"os"
"path/filepath"
"slices"
"strings"
"gopkg.in/yaml.v3"
"xorm.io/xorm"
"xorm.io/xorm/schemas"
)
type fixtureItem struct {
tableName string
tableNameQuoted string
sqlInserts []string
sqlInsertArgs [][]any
mssqlHasIdentityColumn bool
}
type fixturesLoaderInternal struct {
db *sql.DB
dbType schemas.DBType
files []string
fixtures map[string]*fixtureItem
quoteObject func(string) string
paramPlaceholder func(idx int) string
}
func (f *fixturesLoaderInternal) mssqlTableHasIdentityColumn(db *sql.DB, tableName string) (bool, error) {
row := db.QueryRow(`SELECT COUNT(*) FROM sys.identity_columns WHERE OBJECT_ID = OBJECT_ID(?)`, tableName)
var count int
if err := row.Scan(&count); err != nil {
return false, err
}
return count > 0, nil
}
func (f *fixturesLoaderInternal) preprocessFixtureRow(row []map[string]any) (err error) {
for _, m := range row {
for k, v := range m {
if s, ok := v.(string); ok {
if strings.HasPrefix(s, "0x") {
if m[k], err = hex.DecodeString(s[2:]); err != nil {
return err
}
}
}
}
}
return nil
}
func (f *fixturesLoaderInternal) prepareFixtureItem(file string) (_ *fixtureItem, err error) {
fixture := &fixtureItem{}
fixture.tableName, _, _ = strings.Cut(filepath.Base(file), ".")
fixture.tableNameQuoted = f.quoteObject(fixture.tableName)
if f.dbType == schemas.MSSQL {
fixture.mssqlHasIdentityColumn, err = f.mssqlTableHasIdentityColumn(f.db, fixture.tableName)
if err != nil {
return nil, err
}
}
data, err := os.ReadFile(file)
if err != nil {
return nil, fmt.Errorf("failed to read file %q: %w", file, err)
}
var rows []map[string]any
if err = yaml.Unmarshal(data, &rows); err != nil {
return nil, fmt.Errorf("failed to unmarshal yaml data from %q: %w", file, err)
}
if err = f.preprocessFixtureRow(rows); err != nil {
return nil, fmt.Errorf("failed to preprocess fixture rows from %q: %w", file, err)
}
var sqlBuf []byte
var sqlArguments []any
for _, row := range rows {
sqlBuf = append(sqlBuf, fmt.Sprintf("INSERT INTO %s (", fixture.tableNameQuoted)...)
for k, v := range row {
sqlBuf = append(sqlBuf, f.quoteObject(k)...)
sqlBuf = append(sqlBuf, ","...)
sqlArguments = append(sqlArguments, v)
}
sqlBuf = sqlBuf[:len(sqlBuf)-1]
sqlBuf = append(sqlBuf, ") VALUES ("...)
paramIdx := 1
for range row {
sqlBuf = append(sqlBuf, f.paramPlaceholder(paramIdx)...)
sqlBuf = append(sqlBuf, ',')
paramIdx++
}
sqlBuf[len(sqlBuf)-1] = ')'
fixture.sqlInserts = append(fixture.sqlInserts, string(sqlBuf))
fixture.sqlInsertArgs = append(fixture.sqlInsertArgs, slices.Clone(sqlArguments))
sqlBuf = sqlBuf[:0]
sqlArguments = sqlArguments[:0]
}
return fixture, nil
}
func (f *fixturesLoaderInternal) loadFixtures(tx *sql.Tx, file string) (err error) {
fixture := f.fixtures[file]
if fixture == nil {
if fixture, err = f.prepareFixtureItem(file); err != nil {
return err
}
f.fixtures[file] = fixture
}
_, err = tx.Exec(fmt.Sprintf("DELETE FROM %s", fixture.tableNameQuoted)) // sqlite3 doesn't support truncate
if err != nil {
return err
}
if fixture.mssqlHasIdentityColumn {
_, err = tx.Exec(fmt.Sprintf("SET IDENTITY_INSERT %s ON", fixture.tableNameQuoted))
if err != nil {
return err
}
defer func() { _, err = tx.Exec(fmt.Sprintf("SET IDENTITY_INSERT %s OFF", fixture.tableNameQuoted)) }()
}
for i := range fixture.sqlInserts {
_, err = tx.Exec(fixture.sqlInserts[i], fixture.sqlInsertArgs[i]...)
}
if err != nil {
return err
}
return nil
}
func (f *fixturesLoaderInternal) Load() error {
tx, err := f.db.Begin()
if err != nil {
return err
}
defer func() { _ = tx.Rollback() }()
for _, file := range f.files {
if err := f.loadFixtures(tx, file); err != nil {
return fmt.Errorf("failed to load fixtures from %s: %w", file, err)
}
}
return tx.Commit()
}
func FixturesFileFullPaths(dir string, files []string) ([]string, error) {
if files != nil && len(files) == 0 {
return nil, nil // load nothing
}
files = slices.Clone(files)
if len(files) == 0 {
entries, err := os.ReadDir(dir)
if err != nil {
return nil, err
}
for _, e := range entries {
files = append(files, e.Name())
}
}
for i, file := range files {
if !filepath.IsAbs(file) {
files[i] = filepath.Join(dir, file)
}
}
return files, nil
}
func NewFixturesLoader(x *xorm.Engine, opts FixturesOptions) (FixturesLoader, error) {
files, err := FixturesFileFullPaths(opts.Dir, opts.Files)
if err != nil {
return nil, fmt.Errorf("failed to get fixtures files: %w", err)
}
f := &fixturesLoaderInternal{db: x.DB().DB, dbType: x.Dialect().URI().DBType, files: files, fixtures: map[string]*fixtureItem{}}
switch f.dbType {
case schemas.SQLITE:
f.quoteObject = func(s string) string { return fmt.Sprintf(`"%s"`, s) }
f.paramPlaceholder = func(idx int) string { return "?" }
case schemas.POSTGRES:
f.quoteObject = func(s string) string { return fmt.Sprintf(`"%s"`, s) }
f.paramPlaceholder = func(idx int) string { return fmt.Sprintf(`$%d`, idx) }
case schemas.MYSQL:
f.quoteObject = func(s string) string { return fmt.Sprintf("`%s`", s) }
f.paramPlaceholder = func(idx int) string { return "?" }
case schemas.MSSQL:
f.quoteObject = func(s string) string { return fmt.Sprintf("[%s]", s) }
f.paramPlaceholder = func(idx int) string { return "?" }
}
return f, nil
}
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