package database

import (
	"os"
	"testing"

	"github.com/stretchr/testify/require"
)

func TestWithSanitizedPQEnvironment(t *testing.T) {
	t.Setenv("PGSERVICE", "local-service")
	t.Setenv("PGSERVICEFILE", "/tmp/pg_service.conf")
	t.Setenv("PGREALM", "local-realm")

	err := withSanitizedPQEnvironment(func() error {
		for _, key := range []string{"PGSERVICE", "PGSERVICEFILE", "PGREALM"} {
			_, exists := os.LookupEnv(key)
			require.False(t, exists, "%s should be unset during migration", key)
		}
		return nil
	})
	require.NoError(t, err)
	require.Equal(t, "local-service", os.Getenv("PGSERVICE"))
	require.Equal(t, "/tmp/pg_service.conf", os.Getenv("PGSERVICEFILE"))
	require.Equal(t, "local-realm", os.Getenv("PGREALM"))
}

func TestSanitizePostgresEnvironment(t *testing.T) {
	t.Setenv("PGSERVICE", "local-service")
	t.Setenv("PGSERVICEFILE", "/tmp/pg_service.conf")
	t.Setenv("PGREALM", "local-realm")

	SanitizePostgresEnvironment()

	for _, key := range unsupportedPQEnvironmentKeys {
		_, exists := os.LookupEnv(key)
		require.False(t, exists, "%s should be removed at application startup", key)
	}
}