[Webkit-unassigned] [Bug 170537] New: test262: REGRESSION(r207226): test262/test/built-ins/Array/prototype/splice/create-proxy.js.default-strict: Exception: TypeError: Attempted to assign to readonly property.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 5 21:27:43 PDT 2017


https://bugs.webkit.org/show_bug.cgi?id=170537

            Bug ID: 170537
           Summary: test262: REGRESSION(r207226):
                    test262/test/built-ins/Array/prototype/splice/create-p
                    roxy.js.default-strict: Exception: TypeError:
                    Attempted to assign to readonly property.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: mark.lam at apple.com, sbarati at apple.com

A few test262 tests fail after:
<https://webkit.org/b/163338> Array.prototype.slice should not modify frozen objects
<http://trac.webkit.org/r207226>

Steps to Reproduce:
1. Check JSTests/test262.yaml expectations for the above file paths (if they are marked as :fail)
2. $ run-jsc-stress-tests JSTests/test262.yaml

Notes:
- Not sure if these are progressions, but since the tests themselves don't seem to mention freezing anything it seems unexpected.
- If this is an actual failure the expectations can be changed to :failDueToOutdatedOrBadTest

Failures:
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default-strict: Exception: TypeError: Attempted to assign to readonly property.
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default-strict: splice@[native code]
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default-strict: global code at create-proxy.js:39:37
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default-strict: ERROR: Unexpected exit code: 3
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default: Exception: TypeError: Attempted to assign to readonly property.
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default: splice@[native code]
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default: global code at create-proxy.js:38:37
> test262.yaml/test262/test/built-ins/Array/prototype/splice/create-proxy.js.default: ERROR: Unexpected exit code: 3

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