tests/corelib_2/regexp/bol-with-multiline_test.dart

// Copyright (c) 2014, the Dart project authors. All rights reserved.
// Copyright 2013 the V8 project authors. All rights reserved.
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// @dart = 2.9

import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';

void main() {
  description(
      'Test for beginning of line (BOL or ^) matching in a multiline string</a>');

  var s = "aced\nabc";
  shouldBeNull(firstMatch(s, new RegExp(r"^abc")));
  shouldBe(firstMatch(s, new RegExp(r"^abc", multiLine: true)), ["abc"]);
  shouldBeNull(firstMatch(s, new RegExp(r"(^|X)abc")));
  shouldBe(
      firstMatch(s, new RegExp(r"(^|X)abc", multiLine: true)), ["abc", ""]);
  shouldBe(
      firstMatch(s, new RegExp(r"(^a|Xa)bc", multiLine: true)), ["abc", "a"]);
}