fix: stabilize development config and account settings

backend/internal/database/migrate_test.go

@@ -0,0 +1,39 @@
+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)
+	}
+}