blob: 5e1d21d5adb716d6055f675121e08c4ccc3bb72b [file] [log] [blame]
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// Tests for some of the utility helper functions used by the compiler.
import 'dart:mirrors';
import 'package:test/test.dart';
import 'package:code_transformers/messages/messages.dart' show Message;
import 'package:code_transformers/src/messages.dart' as p1;
/// [p1] is accessed via mirrors, this comment prevents the analyzer from
/// complaining about it.
main() {
test('each message id is unique', () {
var seen = {};
int total = 0;
var mirrors = currentMirrorSystem();
var lib = mirrors.findLibrary(#code_transformers.src.messages);
expect(lib, isNotNull);
lib.declarations.forEach((symbol, decl) {
if (decl is! VariableMirror) return;
var field = lib.getField(symbol).reflectee;
var name = MirrorSystem.getName(symbol);
if (field is! Message) return;
var id =;
expect(seen.containsKey(id), isFalse,
reason: 'Duplicate id `$id`. '
'Currently set for both `$name` and `${seen[id]}`.');
seen[id] = name;
expect(seen.length, total);