Files
projectreshoot/pkg/tests/database.go

117 lines
2.6 KiB
Go

package tests
import (
"context"
"database/sql"
"fmt"
"io/fs"
"os"
"path/filepath"
"github.com/pkg/errors"
"github.com/pressly/goose/v3"
_ "modernc.org/sqlite"
)
func findMigrations() (*fs.FS, error) {
dir, err := os.Getwd()
if err != nil {
return nil, err
}
for {
if _, err := os.Stat(filepath.Join(dir, "Makefile")); err == nil {
migrationsdir := os.DirFS(filepath.Join(dir, "cmd", "migrate", "migrations"))
return &migrationsdir, nil
}
parent := filepath.Dir(dir)
if parent == dir { // Reached root
return nil, errors.New("Unable to locate migrations directory")
}
dir = parent
}
}
func findTestData() (string, error) {
dir, err := os.Getwd()
if err != nil {
return "", err
}
for {
if _, err := os.Stat(filepath.Join(dir, "Makefile")); err == nil {
return filepath.Join(dir, "pkg", "tests", "testdata.sql"), nil
}
parent := filepath.Dir(dir)
if parent == dir { // Reached root
return "", errors.New("Unable to locate test data")
}
dir = parent
}
}
func migrateTestDB(wconn *sql.DB, version int64) error {
migrations, err := findMigrations()
if err != nil {
return errors.Wrap(err, "findMigrations")
}
provider, err := goose.NewProvider(goose.DialectSQLite3, wconn, *migrations)
if err != nil {
return errors.Wrap(err, "goose.NewProvider")
}
ctx := context.Background()
if _, err := provider.UpTo(ctx, version); err != nil {
return errors.Wrap(err, "provider.UpTo")
}
return nil
}
func loadTestData(wconn *sql.DB) error {
dataPath, err := findTestData()
if err != nil {
return errors.Wrap(err, "findSchema")
}
sqlBytes, err := os.ReadFile(dataPath)
if err != nil {
return errors.Wrap(err, "os.ReadFile")
}
dataSQL := string(sqlBytes)
_, err = wconn.Exec(dataSQL)
if err != nil {
return errors.Wrap(err, "tx.Exec")
}
return nil
}
// Returns two db connection handles. First is a readwrite connection, second
// is a read only connection
func SetupTestDB(version int64) (*sql.DB, *sql.DB, error) {
opts := "_journal_mode=WAL&_synchronous=NORMAL&_txlock=IMMEDIATE"
file := fmt.Sprintf("file::memory:?cache=shared&%s", opts)
wconn, err := sql.Open("sqlite", file)
if err != nil {
return nil, nil, errors.Wrap(err, "sql.Open")
}
err = migrateTestDB(wconn, version)
if err != nil {
return nil, nil, errors.Wrap(err, "migrateTestDB")
}
err = loadTestData(wconn)
if err != nil {
return nil, nil, errors.Wrap(err, "loadTestData")
}
opts = "_synchronous=NORMAL&mode=ro"
file = fmt.Sprintf("file::memory:?cache=shared&%s", opts)
rconn, err := sql.Open("sqlite", file)
if err != nil {
return nil, nil, errors.Wrap(err, "sql.Open")
}
return wconn, rconn, nil
}