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db_testutil.go
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db_testutil.go
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package testutil
import (
"context"
"database/sql"
"fmt"
"github.com/jackc/pgx/v4/pgxpool"
_ "github.com/jackc/pgx/v4/stdlib"
"github.com/pkg/errors"
"github.com/armadaproject/armada/internal/common/util"
"github.com/armadaproject/armada/internal/lookout/repository/schema"
)
func WithDatabase(action func(db *sql.DB) error) error {
dbName := "test_" + util.NewULID()
connectionString := "host=localhost port=5432 user=postgres password=psw sslmode=disable"
db, err := sql.Open("pgx", connectionString)
if err != nil {
return errors.WithStack(err)
}
defer db.Close()
_, err = db.Exec("CREATE DATABASE " + dbName)
if err != nil {
return errors.WithStack(err)
}
testDb, err := sql.Open("pgx", connectionString+" dbname="+dbName)
if err != nil {
return errors.WithStack(err)
}
defer func() {
err = testDb.Close()
if err != nil {
fmt.Println("Failed to close testDb")
}
// disconnect all db user before cleanup
_, err = db.Exec(
`SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity WHERE pg_stat_activity.datname = '` + dbName + `';`)
if err != nil {
fmt.Println("Failed to disconnect users")
}
_, err = db.Exec("DROP DATABASE " + dbName)
if err != nil {
fmt.Println("Failed to drop database")
}
}()
err = schema.UpdateDatabase(testDb)
if err != nil {
return errors.WithStack(err)
}
return action(testDb)
}
func WithDatabasePgx(action func(db *pgxpool.Pool) error) error {
ctx := context.Background()
// Connect and create a dedicated database for the test
// For now use database/sql for this
dbName := "test_" + util.NewULID()
connectionString := "host=localhost port=5432 user=postgres password=psw sslmode=disable"
db, err := sql.Open("pgx", connectionString)
if err != nil {
return errors.WithStack(err)
}
defer db.Close()
_, err = db.Exec("CREATE DATABASE " + dbName)
if err != nil {
return errors.WithStack(err)
}
// Connect again- this time to the database we just created and using pgx pool. This will be used for tests
testDbPool, err := pgxpool.Connect(ctx, connectionString+" dbname="+dbName)
if err != nil {
return errors.WithStack(err)
}
defer func() {
testDbPool.Close()
// disconnect all db user before cleanup
_, err = db.Exec(
`SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity WHERE pg_stat_activity.datname = '` + dbName + `';`)
if err != nil {
fmt.Println("Failed to disconnect users")
}
_, err = db.Exec("DROP DATABASE " + dbName)
if err != nil {
fmt.Println("Failed to drop database")
}
}()
// A third connection! We can get rid of this once we use move udateDatabse over to pgx
legacyDb, err := sql.Open("pgx", connectionString+" dbname="+dbName)
if err != nil {
return errors.WithStack(err)
}
defer legacyDb.Close()
err = schema.UpdateDatabase(legacyDb)
if err != nil {
return errors.WithStack(err)
}
return action(testDbPool)
}