kra-new/pkg/database/migration/schema_test.go

105 lines
3.0 KiB
Go

package migration
import (
"strings"
"testing"
"github.com/glebarez/sqlite"
"gorm.io/gorm"
)
type existingSchema struct {
ID uint `gorm:"primaryKey"`
Name string
}
func (existingSchema) TableName() string { return "existing_schema" }
func TestCreateMissingTablesDoesNotAlterExistingTables(t *testing.T) {
db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
if err != nil {
t.Fatal(err)
}
if err = db.Exec("CREATE TABLE existing_schema (id integer primary key)").Error; err != nil {
t.Fatal(err)
}
if err = CreateMissingTables(db, &existingSchema{}); err != nil {
t.Fatal(err)
}
if db.Migrator().HasColumn(&existingSchema{}, "name") {
t.Fatal("existing schema was altered")
}
}
func TestCreateMissingTablesCreatesAbsentTables(t *testing.T) {
db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
if err != nil {
t.Fatal(err)
}
if err = CreateMissingTables(db, &existingSchema{}); err != nil {
t.Fatal(err)
}
if !db.Migrator().HasTable(&existingSchema{}) || !db.Migrator().HasColumn(&existingSchema{}, "name") {
t.Fatal("missing schema was not created")
}
}
func TestRunRepairsInvalidMigrationMetadataTable(t *testing.T) {
db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
if err != nil {
t.Fatal(err)
}
if err = db.Exec("CREATE TABLE sys_schema_migrations (id integer primary key, title text)").Error; err != nil {
t.Fatal(err)
}
called := false
if err = Run(db, []Step{{ID: "202608200001_test", Migrate: func(*gorm.DB) error {
called = true
return nil
}}}); err != nil {
t.Fatal(err)
}
if !called {
t.Fatal("migration was not rerun after metadata repair")
}
var dataType string
if err = db.Raw("SELECT type FROM pragma_table_info(?) WHERE name = 'id'", TableName).Scan(&dataType).Error; err != nil {
t.Fatal(err)
}
if !strings.Contains(strings.ToLower(dataType), "text") {
t.Fatalf("migration id type = %q", dataType)
}
}
func TestRunDoesNotLeakStatementState(t *testing.T) {
db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
if err != nil {
t.Fatal(err)
}
if err = Run(db, []Step{{ID: "202608200001_test", Migrate: func(tx *gorm.DB) error {
return CreateMissingTables(tx, &existingSchema{})
}}}); err != nil {
t.Fatal(err)
}
var count int64
if err = db.Model(&existingSchema{}).Count(&count).Error; err != nil {
t.Fatalf("shared database retained migration statement state: %v", err)
}
}
func TestRunRejectsUnknownAppliedMigration(t *testing.T) {
db, err := gorm.Open(sqlite.Open("file:"+t.Name()+"?mode=memory&cache=shared"), &gorm.Config{})
if err != nil {
t.Fatal(err)
}
if err = db.Migrator().CreateTable(&record{}); err != nil {
t.Fatal(err)
}
if err = db.Create(&record{ID: "unknown"}).Error; err != nil {
t.Fatal(err)
}
if err = Run(db, []Step{{ID: "known", Migrate: func(*gorm.DB) error { return nil }}}); err == nil {
t.Fatal("unknown migration was accepted")
}
}