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Patrick Thier 24c626c1f7 Improve error messages for property access on null/undefined 
Only print the property name when accessing null/undefined if we can
convert it to a string without causing side effects.
If we can't, omit the property name in the error message.
This should avoid confusion when the key is an object with toString().
E.g. undefined[{toString:()=>'a'}] doesn't print 'read property [object
Object]' anymore, which was misleading since the property accessed would
be 'a', but we can't evaluate the key without side effects.

Bug: v8:11365
Change-Id: If82d1adb42561d4851e2bd2ca297a1c71738aee8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960211
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75250}
2021-06-18 14:47:08 +00:00
..
fail Improve error messages for property access on null/undefined 2021-06-18 14:47:08 +00:00
mjsunit [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
regress/fail [scanner] fix bug with reporting invalid numeric separator 2019-08-08 16:36:36 +00:00
asm-assignment-undeclared.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-assignment-undeclared.out [asm.js] Fix assignment with undeclared target. 2017-03-30 08:36:17 +00:00
asm-function-mismatch-def.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-function-mismatch-def.out [asm.js] Test and fix function type checking. 2017-04-07 12:10:45 +00:00
asm-function-mismatch-use.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-function-mismatch-use.out [asm.js] Test and fix function type checking. 2017-04-07 12:10:45 +00:00
asm-function-redefined.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-function-redefined.out [asm.js] Test and fix function name collisions. 2017-04-07 09:03:11 +00:00
asm-function-undefined.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-function-undefined.out [asm.js] Fix handling of bogus code after export statement. 2019-02-21 14:37:37 +00:00
asm-function-variable-collision.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-function-variable-collision.out [asm.js] Test and fix function name collisions. 2017-04-07 09:03:11 +00:00
asm-import-wrong-annotation.js [asm.js] Fix validation failure in module variable import. 2017-05-05 11:39:06 +00:00
asm-import-wrong-annotation.out [asm.js] Fix validation failure in module variable import. 2017-05-05 11:39:06 +00:00
asm-import-wrong-object.js [asm.js] Fix validation failure in module variable import. 2017-05-05 11:39:06 +00:00
asm-import-wrong-object.out [asm.js] Fix validation failure in module variable import. 2017-05-05 11:39:06 +00:00
asm-linking-bogus-heap.js [asm.js] Report module linking failures to the console. 2017-05-19 11:31:12 +00:00
asm-linking-bogus-heap.out Reland "[asmjs] Properly validate asm.js heap sizes" 2018-08-21 09:00:04 +00:00
asm-linking-bogus-stdlib.js [asm.js] Report module linking failures to the console. 2017-05-19 11:31:12 +00:00
asm-linking-bogus-stdlib.out [asm.js] Report module linking failures to the console. 2017-05-19 11:31:12 +00:00
asm-linking-missing-heap.js [asm.js] Report module linking failures to the console. 2017-05-19 11:31:12 +00:00
asm-linking-missing-heap.out [asm.js] Report module linking failures to the console. 2017-05-19 11:31:12 +00:00
asm-missing-parameter-annotation.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-missing-parameter-annotation.out [asm.js] Make validation error messages consistent. 2017-03-29 20:55:12 +00:00
asm-missing-return-annotation.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-missing-return-annotation.out [asm.js] Make validation error messages consistent. 2017-03-29 20:55:12 +00:00
asm-table-mismatch-def.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-table-mismatch-def.out [asm.js] Test and fix function table type checks. 2017-04-10 08:47:34 +00:00
asm-table-mismatch-use.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-table-mismatch-use.out [asm.js] Test and fix function table type checks. 2017-04-10 08:47:34 +00:00
asm-table-redefined.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-table-redefined.out [asm.js] Test and fix function table definition failures. 2017-04-11 16:46:26 +00:00
asm-table-undefined.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-table-undefined.out [asm.js] Fix handling of bogus code after export statement. 2019-02-21 14:37:37 +00:00
asm-table-variable-collision.js [asm.js] Remove deprecated --fast-validate-asm flag. 2017-05-04 13:52:39 +00:00
asm-table-variable-collision.out [asm.js] Test and fix function table definition failures. 2017-04-11 16:46:26 +00:00
BUILD.gn [build] Add data deps for d8 test suites 2018-03-26 13:44:58 +00:00
empty.js [platform] Allow to memory-map empty files 2019-01-21 16:02:47 +00:00
empty.out [platform] Allow to memory-map empty files 2019-01-21 16:02:47 +00:00
message.status [heap] Temporarily skip CodeRange and GC tests for TPH 2021-04-29 10:02:27 +00:00
non-use-strict-hex-escape.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
non-use-strict-hex-escape.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
non-use-strict-octal-escape.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
non-use-strict-octal-escape.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
non-use-strict-uhex-escape.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
non-use-strict-uhex-escape.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-arguments.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-arguments.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-eval.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-eval.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-with.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
nonstrict-with.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
object-binding-pattern-await-computed-name.js [parser] classify binding pattern errors when parsing await expression 2017-12-09 16:29:23 +00:00
object-binding-pattern-await-computed-name.out [parser] classify binding pattern errors when parsing await expression 2017-12-09 16:29:23 +00:00
README.md Remove always-true --harmony-function-tostring runtime flag 2018-10-03 15:04:16 +00:00
strict-octal-indirect-regexp.js [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
strict-octal-indirect-regexp.out [testing] Move the last JS tests out of "preparser". 2016-03-14 17:10:49 +00:00
strict-octal-regexp.js [testing] Convert some "preparser" tests into "message". 2016-03-11 11:00:12 +00:00
strict-octal-regexp.out [testing] Convert some "preparser" tests into "message". 2016-03-11 11:00:12 +00:00
testcfg.py [message] Have message testcfg extend ExpectedOutProc 2021-04-22 18:43:28 +00:00
try-catch-finally-no-message.js Changed the message reporting for try { ... } finally { ... } statements to 2008-10-23 08:40:19 +00:00
try-catch-finally-no-message.out First commit of new tools/run-tests.py 2012-09-24 09:38:46 +00:00
try-catch-finally-return-in-finally.js Update V8 to version 3.0 (re-land r5920). 2010-12-07 11:31:57 +00:00
try-catch-finally-return-in-finally.out Update V8 to version 3.0 (re-land r5920). 2010-12-07 11:31:57 +00:00
try-finally-return-in-finally.js Update V8 to version 3.0 (re-land r5920). 2010-12-07 11:31:57 +00:00
try-finally-return-in-finally.out Update V8 to version 3.0 (re-land r5920). 2010-12-07 11:31:57 +00:00
wasm-finish-compilation.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-finish-compilation.out Reland "Reland "[d8][wasm] Test wasm compilation completion"" 2018-04-10 08:24:27 +00:00
wasm-function-name-async.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-function-name-async.out [stack-trace] Add url to wasm stack traces 2020-02-18 06:55:28 +00:00
wasm-function-name-streaming.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-function-name-streaming.out [stack-trace] Add url to wasm stack traces 2020-02-18 06:55:28 +00:00
wasm-module-and-function-name-async.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-module-and-function-name-async.out [stack-trace] Add url to wasm stack traces 2020-02-18 06:55:28 +00:00
wasm-module-and-function-name-streaming.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-module-and-function-name-streaming.out [stack-trace] Add url to wasm stack traces 2020-02-18 06:55:28 +00:00
wasm-module-name-async.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-module-name-async.out [wasm] WAT-compatible naming for exported function 2020-03-26 17:29:49 +00:00
wasm-module-name-streaming.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-module-name-streaming.out [wasm] WAT-compatible naming for exported function 2020-03-26 17:29:49 +00:00
wasm-no-name-async.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-no-name-async.out [wasm] Consider only function names from the name section. 2021-05-05 12:54:27 +00:00
wasm-no-name-streaming.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-no-name-streaming.out [wasm] Consider only function names from the name section. 2021-05-05 12:54:27 +00:00
wasm-trace-liftoff.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-trace-liftoff.out [wasm] Fix register uses in wasm tracing 2020-06-15 11:13:18 +00:00
wasm-trace-memory-liftoff.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-trace-memory-liftoff.out [wasm] Change trace memory instr offset to be relative to module 2021-04-21 20:01:50 +00:00
wasm-trace-memory.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-trace-memory.out [wasm] Change trace memory instr offset to be relative to module 2021-04-21 20:01:50 +00:00
wasm-trace-turbofan.js [d8][mjsunit][tools] Improve d8 file API 2021-06-01 13:37:57 +00:00
wasm-trace-turbofan.out [wasm] Fix register uses in wasm tracing 2020-06-15 11:13:18 +00:00
weakref-finalizationregistry-error.js [weakrefs] Remove --no-harmony-weak-refs flag 2021-04-08 23:10:53 +00:00
weakref-finalizationregistry-error.out [weakrefs] Port FinalizationRegistry cleanup loop to Torque 2020-04-16 03:31:04 +00:00

README.md

JavaScript tests with expected output

Tests in test/message pass if the output matches the expected output. Message tests are particularly useful when checking for exact error messages.

Tests and their expected output must have the same filename, with the .js and .out extension.

foo.js
foo.out

All tests must end with an exception. The test runner does not handle output from multiple runs, e.g., --stress-opt. Without an exception, the output will be generated several times and the comparison will fail.

You can use a regex in the expected output instead of the exact path:

*%(basename)s:7: SyntaxError: Detected cycle while resolving name 'a'

Empty lines are ignored in the comparison, but whitespaces are not.

Exact details of the test runner are in testcfg.py.