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Update RegExp tests for the semantics change (#853) 

Spec change at https://github.com/tc39/ecma262/pull/798
This commit is contained in:
littledan 2017-02-09 09:51:02 -08:00 committed by Leo Balter
parent 1fb47cba88
commit 91ba9a0a25
2 changed files with 21 additions and 15 deletions
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17
test/built-ins/RegExp/prototype/exec/failure-lastindex-no-access.js → test/built-ins/RegExp/prototype/exec/failure-lastindex-access.js vendored
View File

@ -2,13 +2,14 @@
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: lastIndex is not accessed when global and sticky are unset.
description: lastIndex is read but not written when global and sticky are unset.
es6id: 21.2.5.2.2
info: >
21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
4. Let lastIndex be ? ToLength(? Get(R, "lastIndex")).
[...]
7. If global is false and sticky is false, let lastIndex be 0.
8. If global is false and sticky is false, let lastIndex be 0.
[...]
12. Repeat, while matchSucceeded is false
[...]
@ -18,16 +19,18 @@ info: >
2. Return null.
---*/
var thrower = {
var gets = 0;
var counter = {
valueOf: function() {
throw new Test262Error();
gets++;
return 0;
}
};
var r = /a/;
r.lastIndex = thrower;
r.lastIndex = counter;
var result = r.exec('nbc');
assert.sameValue(result, null);
assert.sameValue(r.lastIndex, thrower);
assert.sameValue(r.lastIndex, counter);
assert.sameValue(gets, 1);

19
test/built-ins/RegExp/prototype/exec/success-lastindex-no-access.js → test/built-ins/RegExp/prototype/exec/success-lastindex-access.js vendored
View File

@ -2,32 +2,35 @@
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: lastIndex is not accessed when global and sticky are unset.
description: lastIndex read but not written when global and sticky are unset.
es6id: 21.2.5.2.2
info: >
21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
[...]
4. Let flags be R.[[OriginalFlags]].
5. If flags contains "g", let global be true, else let global be false.
4. Let lastIndex be ? ToLength(? Get(R, "lastIndex")).
5. Let flags be R.[[OriginalFlags]].
6. If flags contains "g", let global be true, else let global be false.
[...]
15. If global is true or sticky is true, then
a. Perform ? Set(R, "lastIndex", e, true).
---*/
var thrower = {
var gets = 0;
var counter = {
valueOf: function() {
throw new Test262Error();
gets++;
return 0;
}
};
var r = /./;
r.lastIndex = thrower;
r.lastIndex = counter;
var result = r.exec('abc');
assert.notSameValue(result, null);
assert.sameValue(result.length, 1);
assert.sameValue(result[0], 'a');
assert.sameValue(r.lastIndex, thrower);
assert.sameValue(r.lastIndex, counter);
assert.sameValue(gets, 1);