Files
sdk/pkg/compiler/test/codegen/number_output_test.dart
T
Joshua Litt 20faaa5d94 [dart2js] Move dart2js unit tests to pkg/compiler/test.
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784
Reviewed-by: Paul Berry <paulberry@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
2020-05-28 18:51:11 +00:00

70 lines
2.3 KiB
Dart

// Copyright (c) 2015, 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.
// @dart = 2.7
import 'dart:async';
import 'package:expect/expect.dart';
import 'package:compiler/compiler_new.dart';
import 'package:compiler/src/commandline_options.dart';
import 'package:async_helper/async_helper.dart';
import '../helpers/memory_compiler.dart';
const MEMORY_SOURCE_FILES = const {
'main.dart': '''
main() {
print(12300000);
// TODO(efortuna): Uncomment below when issue 33160 is fixed.
// print(0xffffffff00000000);
print(double.maxFinite);
print(-22230000);
}'''
};
Future test({bool minify}) async {
OutputCollector collector = new OutputCollector();
List<String> options = <String>[];
if (minify) {
options.add(Flags.minify);
}
await runCompiler(
memorySourceFiles: MEMORY_SOURCE_FILES,
outputProvider: collector,
options: options);
// Check that we use the shorter exponential representations.
String jsOutput = collector.getOutput('', OutputType.js);
print(jsOutput);
if (minify) {
Expect.isTrue(jsOutput.contains('123e5')); // Shorter than 12300000.
Expect.isFalse(jsOutput.contains('12300000'));
Expect.isTrue(jsOutput.contains('-2223e4')); // Shorter than -22230000.
Expect.isFalse(jsOutput.contains('-22230000'));
} else {
Expect.isTrue(jsOutput.contains('12300000'));
Expect.isTrue(jsOutput.contains('-22230000'));
}
// TODO(efortuna): Uncomment when issue 33160 is fixed.
//Expect.isTrue(jsOutput.contains('18446744069414584e3'));
//Expect.isFalse(jsOutput.contains('-4294967296'));
Expect.isTrue(jsOutput.contains('17976931348623157e292'));
Expect.isFalse(jsOutput.contains('1234567890123456789012345'));
// The decimal expansion of double.maxFinite has 308 digits. We only check
// for its prefix.
Expect.isFalse(jsOutput.contains('179769313486231570814527423731'));
}
main() {
runTest() async {
await test(minify: true);
await test(minify: false);
}
asyncTest(() async {
print('--test from kernel------------------------------------------------');
await runTest();
});
}