tests/corelib_2/regexp/repeat-match-waldemar_test.dart

// Copyright (c) 2014, the Dart project authors. All rights reserved.
// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';

void main() {
  // "Some test cases identified by Waldemar Horwat in response to this bug:
  // https:new RegExp(r"/bugs.webkit.org")show_bug.cgi?id=48101"

  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch("aa"), ["aa"]);
  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch("a"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?)").firstMatch("aa"), [""]);
  shouldBe(new RegExp(r"(?:a*?)").firstMatch("a"), [""]);
  shouldBe(new RegExp(r"(?:a*?)").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch("aa"), [""]);
  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch("a"), [""]);
  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch("aa"), [""]);
  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch("a"), [""]);
  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch("aa"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch("a"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?)?").firstMatch("aa"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?)?").firstMatch("a"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?)?").firstMatch(""), [""]);

  shouldBe(new RegExp(r"(?:a*?)*").firstMatch("aa"), ["aa"]);
  shouldBe(new RegExp(r"(?:a*?)*").firstMatch("a"), ["a"]);
  shouldBe(new RegExp(r"(?:a*?)*").firstMatch(""), [""]);
}