Fix Regex Character Class Escape Tests

For each character class escape (\d, \D, \s, \S, \w, \W), check
positive cases (the escape matches all characters it's supposed to
match) and negative cases (the escape doesn't match any of the
characters it should not match).  Each of these checks is also done in
Unicode mode and with the v flag.

This uses regenerate.js from the unicode-property-escapes-tests
repo to generate strings that contain exactly the characters that
are supposed to be matched or not matched for each escape.

Comparison is done with regex test instead of regex replace to
optimize the tests.

This is part of my work at the SYSTEMF lab at EPFL.

Author: Aurele-Barriere

test/built-ins/RegExp/CharacterClassEscapes/character-class-digit-class-escape.js test/built-ins/RegExp/CharacterClassEscapes/character-class-digit-class-escape-negative-cases.js

@@ -1,10 +1,11 @@
 // Copyright (C) 2018 Leo Balter.  All rights reserved.
+// Copyright (C) 2024 Aurèle Barrière.  All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
 esid: prod-CharacterClassEscape
 description: >
-  Compare range for digit class escape \d with flags g
+  Check negative cases of digit class escape \d.
 info: |
   This is a generated test. Please check out
   https://github.com/tc39/test262/tree/main/tools/regexp-generator/
@@ -45,28 +46,38 @@ includes: [regExpUtils.js]
 flags: [generated]
 ---*/
 
-const str = buildString({
-    loneCodePoints: [],
-    ranges: [
-        [0x000030, 0x000039],
-    ],
-});
+const str = buildString(
+{
+  loneCodePoints: [],
+  ranges: [
+    [0x00DC00, 0x00DFFF],
+    [0x000000, 0x00002F],
+    [0x00003A, 0x00DBFF],
+    [0x00E000, 0x10FFFF]
+  ]
+}
+);
 
-const re = /\d/g;
+const standard = /\d/;
+const unicode = /\d/u;
+const vflag = /\d/v;
+const regexes = [standard,unicode,vflag];
 
 const errors = [];
 
-if (!re.test(str)) {
-  // Error, let's find out where
-  for (const char of str) {
-    if (!re.test(char)) {
-      errors.push('0x' + char.codePointAt(0).toString(16));
+for (const regex of regexes) {
+  if (regex.test(str)) {
+    // Error, let's find out where
+    for (const char of str) {
+      if (regex.test(char)) {
+        errors.push('0x' + char.codePointAt(0).toString(16));
+      }
     }
   }
 }
 
 assert.sameValue(
   errors.length,
   0,
-  'Expected matching code points, but received: ' + errors.join(',')
+  'Expected no match, but matched: ' + errors.join(',')
 );

test/built-ins/RegExp/CharacterClassEscapes/character-class-digit-class-escape-plus-quantifier-flags-u.js test/built-ins/RegExp/CharacterClassEscapes/character-class-digit-class-escape-positive-cases.js

@@ -1,10 +1,11 @@
 // Copyright (C) 2018 Leo Balter.  All rights reserved.
+// Copyright (C) 2024 Aurèle Barrière.  All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
 esid: prod-CharacterClassEscape
 description: >
-  Compare range for digit class escape \d+ with flags ug
+  Check positive cases of digit class escape \d.
 info: |
   This is a generated test. Please check out
   https://github.com/tc39/test262/tree/main/tools/regexp-generator/
@@ -45,28 +46,35 @@ includes: [regExpUtils.js]
 flags: [generated]
 ---*/
 
-const str = buildString({
-    loneCodePoints: [],
-    ranges: [
-        [0x000030, 0x000039],
-    ],
-});
+const str = buildString(
+{
+  loneCodePoints: [],
+  ranges: [
+    [0x000030, 0x000039]
+  ]
+}
+);
 
-const re = /\d+/ug;
+const standard = /^\d+$/;
+const unicode = /^\d+$/u;
+const vflag = /^\d+$/v;
+const regexes = [standard,unicode,vflag];
 
 const errors = [];
 
-if (!re.test(str)) {
-  // Error, let's find out where
-  for (const char of str) {
-    if (!re.test(char)) {
-      errors.push('0x' + char.codePointAt(0).toString(16));
+for (const regex of regexes) {
+  if (!regex.test(str)) {
+    // Error, let's find out where
+    for (const char of str) {
+      if (!regex.test(char)) {
+        errors.push('0x' + char.codePointAt(0).toString(16));
+      }
     }
   }
 }
 
 assert.sameValue(
   errors.length,
   0,
-  'Expected matching code points, but received: ' + errors.join(',')
+  'Expected full match, but did not match: ' + errors.join(',')
 );

test/built-ins/RegExp/CharacterClassEscapes/character-class-non-digit-class-escape-flags-u.js

@@ -1,10 +1,11 @@
 // Copyright (C) 2018 Leo Balter.  All rights reserved.
+// Copyright (C) 2024 Aurèle Barrière.  All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
 esid: prod-CharacterClassEscape
 description: >
-  Compare range for digit class escape \d with flags ug
+  Check negative cases of non-digit class escape \D.
 info: |
   This is a generated test. Please check out
   https://github.com/tc39/test262/tree/main/tools/regexp-generator/
@@ -45,28 +46,35 @@ includes: [regExpUtils.js]
 flags: [generated]
 ---*/
 
-const str = buildString({
-    loneCodePoints: [],
-    ranges: [
-        [0x000030, 0x000039],
-    ],
-});
+const str = buildString(
+{
+  loneCodePoints: [],
+  ranges: [
+    [0x000030, 0x000039]
+  ]
+}
+);
 
-const re = /\d/ug;
+const standard = /\D/;
+const unicode = /\D/u;
+const vflag = /\D/v;
+const regexes = [standard,unicode,vflag];
 
 const errors = [];
 
-if (!re.test(str)) {
-  // Error, let's find out where
-  for (const char of str) {
-    if (!re.test(char)) {
-      errors.push('0x' + char.codePointAt(0).toString(16));
+for (const regex of regexes) {
+  if (regex.test(str)) {
+    // Error, let's find out where
+    for (const char of str) {
+      if (regex.test(char)) {
+        errors.push('0x' + char.codePointAt(0).toString(16));
+      }
     }
   }
 }
 
 assert.sameValue(
   errors.length,
   0,
-  'Expected matching code points, but received: ' + errors.join(',')
+  'Expected no match, but matched: ' + errors.join(',')
 );