Robert Nystrom | b998b10 | 2019-12-17 23:06:24 +0000 | [diff] [blame] | 1 | // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 | // for details. All rights reserved. Use of this source code is governed by a |
| 3 | // BSD-style license that can be found in the LICENSE file. |
| 4 | |
| 5 | import "package:expect/expect.dart"; |
| 6 | |
| 7 | // Dart test program for RegExp.allMatches. |
| 8 | |
| 9 | class RegExpAllMatchesTest { |
| 10 | static testIterator() { |
| 11 | var matches = new RegExp("foo").allMatches("foo foo"); |
| 12 | Iterator it = matches.iterator; |
Erik Ernst | 3a7eeb6 | 2020-11-05 14:26:53 +0000 | [diff] [blame] | 13 | if (hasSoundNullSafety) { |
Nate Bosch | 735bcbe | 2020-09-18 17:43:57 +0000 | [diff] [blame] | 14 | Expect.throws(() => it.current); |
| 15 | } else { |
| 16 | Expect.isNull(it.current); |
| 17 | } |
Robert Nystrom | b998b10 | 2019-12-17 23:06:24 +0000 | [diff] [blame] | 18 | Expect.isTrue(it.moveNext()); |
| 19 | Expect.equals('foo', it.current.group(0)); |
| 20 | Expect.isTrue(it.moveNext()); |
| 21 | Expect.equals('foo', it.current.group(0)); |
| 22 | Expect.isFalse(it.moveNext()); |
| 23 | |
| 24 | // Run two iterators over the same results. |
| 25 | it = matches.iterator; |
| 26 | Iterator it2 = matches.iterator; |
| 27 | Expect.isTrue(it.moveNext()); |
| 28 | Expect.isTrue(it2.moveNext()); |
| 29 | Expect.equals('foo', it.current.group(0)); |
| 30 | Expect.equals('foo', it2.current.group(0)); |
| 31 | Expect.isTrue(it.moveNext()); |
| 32 | Expect.isTrue(it2.moveNext()); |
| 33 | Expect.equals('foo', it.current.group(0)); |
| 34 | Expect.equals('foo', it2.current.group(0)); |
| 35 | Expect.equals(false, it.moveNext()); |
| 36 | Expect.equals(false, it2.moveNext()); |
| 37 | } |
| 38 | |
| 39 | static testForEach() { |
| 40 | var matches = new RegExp("foo").allMatches("foo foo"); |
| 41 | var strbuf = new StringBuffer(); |
| 42 | matches.forEach((Match m) { |
| 43 | strbuf.write(m.group(0)); |
| 44 | }); |
| 45 | Expect.equals("foofoo", strbuf.toString()); |
| 46 | } |
| 47 | |
| 48 | static testMap() { |
| 49 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 50 | var mapped = matches.map((Match m) => "${m.group(0)}bar"); |
| 51 | Expect.equals(4, mapped.length); |
| 52 | var strbuf = new StringBuffer(); |
| 53 | for (String s in mapped) { |
| 54 | strbuf.write(s); |
| 55 | } |
| 56 | Expect.equals("foobarfobarfoobarfobar", strbuf.toString()); |
| 57 | } |
| 58 | |
| 59 | static testFilter() { |
| 60 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 61 | var filtered = matches.where((Match m) { |
| 62 | return m.group(0) == 'foo'; |
| 63 | }); |
| 64 | Expect.equals(2, filtered.length); |
| 65 | var strbuf = new StringBuffer(); |
| 66 | for (Match m in filtered) { |
| 67 | strbuf.write(m.group(0)); |
| 68 | } |
| 69 | Expect.equals("foofoo", strbuf.toString()); |
| 70 | } |
| 71 | |
| 72 | static testEvery() { |
| 73 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 74 | Expect.equals(true, matches.every((Match m) { |
| 75 | return m.group(0)!.startsWith("fo"); |
| 76 | })); |
| 77 | Expect.equals(false, matches.every((Match m) { |
| 78 | return m.group(0)!.startsWith("foo"); |
| 79 | })); |
| 80 | } |
| 81 | |
| 82 | static testSome() { |
| 83 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 84 | Expect.equals(true, matches.any((Match m) { |
| 85 | return m.group(0)!.startsWith("fo"); |
| 86 | })); |
| 87 | Expect.equals(true, matches.any((Match m) { |
| 88 | return m.group(0)!.startsWith("foo"); |
| 89 | })); |
| 90 | Expect.equals(false, matches.any((Match m) { |
| 91 | return m.group(0)!.startsWith("fooo"); |
| 92 | })); |
| 93 | } |
| 94 | |
| 95 | static testIsEmpty() { |
| 96 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 97 | Expect.equals(false, matches.isEmpty); |
| 98 | matches = new RegExp("fooo").allMatches("foo fo foo fo"); |
| 99 | Expect.equals(true, matches.isEmpty); |
| 100 | } |
| 101 | |
| 102 | static testGetCount() { |
| 103 | var matches = new RegExp("foo?").allMatches("foo fo foo fo"); |
| 104 | Expect.equals(4, matches.length); |
| 105 | matches = new RegExp("fooo").allMatches("foo fo foo fo"); |
| 106 | Expect.equals(0, matches.length); |
| 107 | } |
| 108 | |
| 109 | static testMain() { |
| 110 | testIterator(); |
| 111 | testForEach(); |
| 112 | testMap(); |
| 113 | testFilter(); |
| 114 | testEvery(); |
| 115 | testSome(); |
| 116 | testIsEmpty(); |
| 117 | testGetCount(); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | main() { |
| 122 | RegExpAllMatchesTest.testMain(); |
| 123 | } |