Joshua Litt
20faaa5d94
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>
99 lines
2.0 KiB
Dart
99 lines
2.0 KiB
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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library equals_test;
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import 'dart:async';
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import 'package:async_helper/async_helper.dart';
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import '../helpers/compiler_helper.dart';
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const String TEST1 = r"""
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foo(int a) {
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return a == null;
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// present: 'a == null'
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// absent: 'eq'
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}
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""";
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const String TEST2 = r"""
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foo(int a) {
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return a == 123;
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// present: 'a === 123'
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// absent: 'eq'
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}
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""";
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const String TEST3 = r"""
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foo(int a, int b) {
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return a == b;
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// present: 'a == b'
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// absent: 'eq'
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// absent: '==='
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}
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""";
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const String TEST4 = r"""
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foo(String a, String b) {
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return a == b;
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// present: 'a == b'
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// absent: 'eq'
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// absent: '==='
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}
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""";
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// Comparable includes String and int, so can't be compared with `a == b` since
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// that will convert an operand to make `2 == "2"` true.
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const String TEST5 = r"""
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foo(Comparable a, Comparable b) {
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return a == b;
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// present: 'a === b'
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// present: 'a == null'
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// present: 'b == null'
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// absent: 'eq'
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// absent: 'a == b'
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}
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""";
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const String TEST6 = r"""
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foo(dynamic a, dynamic b) {
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return a == b;
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// present: 'eq'
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// absent: '=='
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}
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""";
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// StringBuffer uses `Object.==`, i.e. `identical`. This can be lowered to `==`
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// because no operand will cause JavaScript conversions.
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const String TEST7 = r"""
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foo(StringBuffer a, StringBuffer b) {
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return a == b;
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// present: ' == '
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// absent: '==='
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// absent: 'eq'
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}
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""";
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main() {
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runTests() async {
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Future check(String test) {
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return compile(test, entry: 'foo', check: checkerForAbsentPresent(test));
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}
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await check(TEST1);
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await check(TEST2);
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await check(TEST3);
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await check(TEST4);
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await check(TEST5);
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await check(TEST6);
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await check(TEST7);
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}
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asyncTest(() async {
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print('--test from kernel------------------------------------------------');
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await runTests();
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});
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}
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