litemigrate/migration_test.go
2024-11-06 22:16:17 +00:00

91 lines
1.9 KiB
Go

package litemigrate_test
import (
"context"
"database/sql"
"github.com/stretchr/testify/assert"
"lmika.dev/pkg/litemigrate"
"os"
"path/filepath"
"testing"
"testing/fstest"
_ "modernc.org/sqlite"
)
func TestMigrator_MigrateUp(t *testing.T) {
ctx := context.Background()
db, closeFn := newDB(t)
defer closeFn()
fileMigrated := make([]string, 0)
migrator := litemigrate.New(testMigration, db, litemigrate.WithPreStepHook(func(filename string) {
fileMigrated = append(fileMigrated, filename)
}))
// Check initial version
ver, err := migrator.Version(ctx)
assert.NoError(t, err)
assert.Equal(t, 0, ver)
// Run migration
err = migrator.MigrateUp(ctx)
assert.NoError(t, err)
assert.Equal(t, []string{"01_base_schema.up.sql", "02_insert_things.up.sql"}, fileMigrated)
// Check new version
ver, err = migrator.Version(ctx)
assert.NoError(t, err)
assert.Equal(t, 2, ver)
// Verify that migration worked
var some string
row := db.QueryRow(`SELECT some FROM thing LIMIT 1`)
err = row.Scan(&some)
assert.NoError(t, err)
assert.Equal(t, "bla", some)
fileMigrated = make([]string, 0)
// Check that running migration nops
err = migrator.MigrateUp(ctx)
assert.NoError(t, err)
assert.Equal(t, []string{}, fileMigrated)
ver, err = migrator.Version(ctx)
assert.NoError(t, err)
assert.Equal(t, 2, ver)
}
func newDB(t *testing.T) (*sql.DB, func()) {
t.Helper()
tmpDir, err := os.MkdirTemp("", "")
if err != nil {
t.Errorf("cannot create mkdir: %v", err)
}
drvr, err := sql.Open("sqlite", filepath.Join(tmpDir, "test.db"))
if err != nil {
t.Errorf("cannot open driver: %v", err)
}
return drvr, func() {
drvr.Close()
}
}
var testMigration = fstest.MapFS{
"01_base_schema.up.sql": {
Data: []byte(`
CREATE TABLE thing (some text);
`),
},
"02_insert_things.up.sql": {
Data: []byte(`
INSERT INTO thing (some) VALUES ("bla");
`),
},
}