The Tor Browser: comparison js/src/tests/ecma_3/RegExp/regress-223273.js

comparison: js/src/tests/ecma_3/RegExp/regress-223273.js

js/src/tests/ecma_3/RegExp/regress-223273.js

branch: TOR_BUG_3246
changeset 7: 129ffea94266

equal deleted inserted replaced

--1:000000000000
+:0bec89701cf4
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/*
+*
+* Date:    23 October 2003
+* SUMMARY: Unescaped, unbalanced parens in a regexp should cause SyntaxError.
+*
+* The same would also be true for unescaped, unbalanced brackets or braces
+* if we followed the ECMA-262 Ed. 3 spec on this. But it was decided for
+* backward compatibility reasons to follow Perl 5, which permits
+*
+* 1. an unescaped, unbalanced right bracket ]
+* 2. an unescaped, unbalanced left brace    {
+* 3. an unescaped, unbalanced right brace   }
+*
+* If any of these should occur, Perl treats each as a literal
+* character.  Therefore we permit all three of these cases, even
+* though not ECMA-compliant.  Note Perl errors on an unescaped,
+* unbalanced left bracket; so will we.
+*
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=223273
+*
+*/
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 223273;
+var summary = 'Unescaped, unbalanced parens in regexp should be a SyntaxError';
+var TEST_PASSED = 'SyntaxError';
+var TEST_FAILED = 'Generated an error, but NOT a SyntaxError!';
+var TEST_FAILED_BADLY = 'Did not generate ANY error!!!';
+var CHECK_PASSED = 'Should not generate an error';
+var CHECK_FAILED = 'Generated an error!';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+/*
+* All the following contain unescaped, unbalanced parens and
+* should generate SyntaxErrors. That's what we're testing for.
+*
+* To allow the test to compile and run, we have to hide the errors
+* inside eval strings, and check they are caught at run-time.
+*
+* Inside such strings, remember to escape any escape character!
+*/
+status = inSection(1);
+testThis(' /(/ ');
+status = inSection(2);
+testThis(' /)/ ');
+status = inSection(3);
+testThis(' /(abc\\)def(g/ ');
+status = inSection(4);
+testThis(' /\\(abc)def)g/ ');
+/*
+* These regexp patterns are correct and should not generate
+* any errors. Note we use checkThis() instead of testThis().
+*/
+status = inSection(5);
+checkThis(' /\\(/ ');
+status = inSection(6);
+checkThis(' /\\)/ ');
+status = inSection(7);
+checkThis(' /(abc)def\\(g/ ');
+status = inSection(8);
+checkThis(' /(abc\\)def)g/ ');
+status = inSection(9);
+checkThis(' /(abc(\\))def)g/ ');
+status = inSection(10);
+checkThis(' /(abc([x\\)yz]+)def)g/ ');
+/*
+* Unescaped, unbalanced left brackets should be a SyntaxError
+*/
+status = inSection(11);
+testThis(' /[/ ');
+status = inSection(12);
+testThis(' /[abc\\]def[g/ ');
+/*
+* We permit unescaped, unbalanced right brackets, as does Perl.
+* No error should result, even though this is not ECMA-compliant.
+* Note we use checkThis() instead of testThis().
+*/
+status = inSection(13);
+checkThis(' /]/ ');
+status = inSection(14);
+checkThis(' /\\[abc]def]g/ ');
+/*
+* These regexp patterns are correct and should not generate
+* any errors. Note we use checkThis() instead of testThis().
+*/
+status = inSection(15);
+checkThis(' /\\[/ ');
+status = inSection(16);
+checkThis(' /\\]/ ');
+status = inSection(17);
+checkThis(' /[abc]def\\[g/ ');
+status = inSection(18);
+checkThis(' /[abc\\]def]g/ ');
+status = inSection(19);
+checkThis(' /(abc[\\]]def)g/ ');
+status = inSection(20);
+checkThis(' /[abc(x\\]yz+)def]g/ ');
+/*
+* Run some tests for unbalanced braces. We again follow Perl, and
+* thus permit unescaped unbalanced braces - both left and right,
+* even though this is not ECMA-compliant.
+*
+* Note we use checkThis() instead of testThis().
+*/
+status = inSection(21);
+checkThis(' /abc{def/ ');
+status = inSection(22);
+checkThis(' /abc}def/ ');
+status = inSection(23);
+checkThis(' /a{2}bc{def/ ');
+status = inSection(24);
+checkThis(' /a}b{3}c}def/ ');
+/*
+* These regexp patterns are correct and should not generate
+* any errors. Note we use checkThis() instead of testThis().
+*/
+status = inSection(25);
+checkThis(' /abc\\{def/ ');
+status = inSection(26);
+checkThis(' /abc\\}def/ ');
+status = inSection(27);
+checkThis(' /a{2}bc\\{def/ ');
+status = inSection(28);
+checkThis(' /a\\}b{3}c\\}def/ ');
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+/*
+* Invalid syntax should generate a SyntaxError
+*/
+function testThis(sInvalidSyntax)
+{
+expect = TEST_PASSED;
+actual = TEST_FAILED_BADLY;
+try
+{
+eval(sInvalidSyntax);
+}
+catch(e)
+{
+if (e instanceof SyntaxError)
+actual = TEST_PASSED;
+else
+actual = TEST_FAILED;
+}
+statusitems[UBound] = status;
+expectedvalues[UBound] = expect;
+actualvalues[UBound] = actual;
+UBound++;
+}
+/*
+* Valid syntax shouldn't generate any errors
+*/
+function checkThis(sValidSyntax)
+{
+expect = CHECK_PASSED;
+actual = CHECK_PASSED;
+try
+{
+eval(sValidSyntax);
+}
+catch(e)
+{
+actual = CHECK_FAILED;
+}
+statusitems[UBound] = status;
+expectedvalues[UBound] = expect;
+actualvalues[UBound] = actual;
+UBound++;
+}
+function test()
+{
+enterFunc('test');
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+for (var i=0; i<UBound; i++)
+{
+reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+}
+exitFunc ('test');
+}