evcc-io/server/db/db_test.go

100 lines
2.5 KiB
Go

package db
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestUnitNewDriver(t *testing.T) {
tmpDir := t.TempDir()
tests := []struct {
name string
driver string
dsn string
expectedFilePath string
wantErr bool
}{
{
name: "SQLite In-Memory",
driver: "sqlite",
dsn: ":memory:",
expectedFilePath: ":memory:",
wantErr: false,
},
{
name: "SQLite File",
driver: "sqlite",
dsn: tmpDir + "/evcc.db",
expectedFilePath: tmpDir + "/evcc.db",
wantErr: false,
},
{
name: "SQLite with connection parameters",
driver: "sqlite",
dsn: tmpDir + "evcc.db?_pragma=busy_timeout(5000)&_pragma=journal_mode(WAL)",
wantErr: false,
expectedFilePath: tmpDir + "evcc.db",
},
{
name: "Unsupported Driver",
driver: "postgresql",
dsn: "/var/lib/evcc/evcc.db",
wantErr: true,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
// Reset file path
filePath = ""
driver, err := New(test.driver, test.dsn)
if test.wantErr {
assert.Error(t, err)
assert.Nil(t, driver)
} else {
assert.NoError(t, err)
assert.NotNil(t, driver)
}
assert.Equal(t, test.expectedFilePath, FilePath())
})
}
}
type migrationParent struct {
Id int `gorm:"column:id;primarykey"`
}
func (migrationParent) TableName() string { return "migration_parents" }
type migrationChild struct {
ParentId int `gorm:"column:parent_id"`
Parent migrationParent `gorm:"foreignkey:ParentId;references:Id"`
}
func (migrationChild) TableName() string { return "migration_children" }
// TestUnitMigrateConstraint guards against migrator implementations that pin a
// connection and then query the pool again: the single connection deadlocks.
func TestUnitMigrateConstraint(t *testing.T) {
db, err := New("sqlite", t.TempDir()+"/evcc.db")
require.NoError(t, err)
// existing table without the foreign key, forces the migrator to recreate it
require.NoError(t, db.Exec("CREATE TABLE migration_children (parent_id integer)").Error)
done := make(chan error, 1)
go func() { done <- db.AutoMigrate(new(migrationParent), new(migrationChild)) }()
select {
case err := <-done:
require.NoError(t, err)
case <-time.After(10 * time.Second):
t.Fatal("AutoMigrate deadlocked")
}
}