Because these files contain syntax errors, the code they contain is not
intended to be executed, and the runtime semantics are therefore
irrelevant. Simplify the files by removing the unnecessary code.
A number of tests for the parsing of function literals were expressed
using `eval`. This made the tests more complex than necessary and also
prevented the tests from providing value to ECMAScript parsers.
Remove the use of `eval` in the relevant tests and instead express the
expectations with literal source text.
Early errors may result from parsing the source text of a test file, but
they may also result from parsing some other source text as referenced
through the ES2015 module syntax. The latter form of early error is not
necessarily detectable by ECMAScript parsers, however. Because of this,
the label "early" is not sufficiently precise for all Test262 consumers
to correctly interpret all tests.
Update the "phase" name of "early" to "parse" for all those negative
tests that describe errors resulting from parsing of the file's source
text directly. A forthcoming commit will update the remaining tests to
use a "phase" name that is more specific to module resolution.
Static fields were broken up from instance fields and demoted to
Stage 2 in the November 2017 TC39 meeting. This patch removes the
test262 tests which test static class fields.
A number of tests for the parsing of the AssignmentExpression production
were expressed using `eval`. This made the tests more complex than
necessary, and also prevented the tests from providing value to
ECMAScript parsers.
Remove the use of `eval` in the relevant tests and instead express the
expectations with literal source text. Remove superfluous "onlyStrict"
restriction from tests by declaring the probe binding prior to
assignment.
* Accessing `ta[0]` throws a TypeError.
* Fix array indices starting at 0 and property references
* Fix classfields templates for properly checking static propnames.
* Generate tests
* `assert.equal` is not defined
* Add missing includes
* Generate tests
* typo s/Avalue/42/
* fix whitespace
* Add missing var for strict mode
* Expand generated class fields tests for forbidden computed property name values
Ref https://github.com/tc39/test262/pull/1339#issuecomment-342830243
* derived classes have access to private names in base classes, if private names are in scope
Only this test relied on $ERROR throwing a catchable Test262Error.
This change allows test environments to provide their on $ERROR function for better error reporting.
https://github.com/tc39/ecma262/pull/988 changes the iteration protocol
such that the "next" method is only loaded from the iterator object once
during the prologue of iteration, rather than during each step.
The templates are being used for many tests reusing the same available function forms.
The format they are provided allow us to extend tests with cases for other tests relying
in the same formats.
test/annexB/built-ins/Date/prototype/setYear/time-clip.js
test/built-ins/Date/prototype/setFullYear/new-value-time-clip.js
test/built-ins/Date/prototype/setMonth/new-value-time-clip.js
- Don't try to test time-clip at the end points, because this is near
impossible to get right (needs to consider time zone offset, dst, local
mean time because of Africa/Monrovia, etc.).
test/built-ins/DataView/prototype/setFloat64/detached-buffer-after-toindex-byteoffset.js
test/built-ins/DataView/prototype/setInt16/detached-buffer-after-toindex-byteoffset.js
- Wasn't update to expect RangeError
test/built-ins/Function/internals/Construct/derived-this-uninitialized-realm.js
- Change ClassDeclaration -> ClassExpression to get completion value
test/built-ins/Function/prototype/toString/AsyncFunction.js
- Add missing \n in expected string
- Also fixed in gh-847
test/built-ins/global/global-object.js
- Add 'var' to make test pass in strict-mode
test/language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-function-declaration-with-function-declaration.js
- This is allowed in sloppy mode when Annex B is implemented
test/language/expressions/async-generators/expression-yield-as-statement.js
- Fix calls to then()
test/language/module-code/namespace/internals/own-property-keys-binding-types.js
test/language/module-code/namespace/internals/own-property-keys-sort.js
- Tests weren't updated after removal of @@iterator from module
namespace objects
test/language/module-code/namespace/internals/set-prototype-of-null.js
- Fix syntax error
test/language/statements/async-function/early-errors-no-async-generator.js
- No longer valid now that async iteration proposal is at stage 3
The HTML spec requires browsers define a non-configurable property
of the global (window) object named "top". This makes it
impossible for a browser to successfully run a test in strict mode
if said test attempts to write to a global variable named "top".
* Re-organize coverage for YieldExpression
* Extend test coverge for YieldExpression
* fixup! Extend test coverge for YieldExpression
Remove unused variables
Because expectations regarding error "phase" are now expressed via test
meta-data, the test runner may now enforce this requirement on negative
tests.
Remove the "NotEarlyError" from the project source. This reduces the
amount of domain knowledge required to author tests and lessens the
potential for inconsistencies between tests.
Authored via the following command:
$ find test -type f -print0 | \
xargs -0 sed \
-i 's/^\(\s*\)negative:\s*SyntaxError\s*$/\1negative:\n\1 phase: early\n\1 type: SyntaxError/g'
* Assert creation of 'arguments' object
Ensure that the 'arguments' object is created in cases where it is not
required by the body but is required by the parameters.
* Add tests for cases that disable "arguments" map
* Add tests for NewTarget override of bound function
* Add test for properties of exotic String objects
* Add tests for early errors in functions
* Improve tests for class accessors
Use the `propertyHelper.js` utility in order to functionally test the
property descriptors of class methods.
* Remove redundant tests
The semantics of an IdentifierReference as a PropertyDefinition within
an object initializer are exhaustively tested by the files in this
directory whose name match the pattern `prop-def-id-*.js`.
Delete the redundant tests in favor of the more descriptively-named and
more exhaustive alternatives.
* Rename tests
* Update test names to be more descriptive
* Add tests for property descriptors of accessors
* Add tests for runtime error during method dfn
* Add test for observable iteration
* Extend tests for class "name" inference
Ensure that when a class defines a static "name" method, that method
definition prevents the "name" inference behavior.
* Re-generate tests
Fixes gh-696
As pointed in gh-696, the ArrayBuffer ctor won't throw a RangeError when
invoked without arguments.
Instead of fixing the invalid assertion, this commit removes it as the
coverage for subclassing is already satisfied by the use of slice.
The global isNaN is not precise at all, and Number.isNaN is an ES6 feature that makes it preferrable to use assert's sameValue for NaN values, as it handles it internally using the comparison.
This test was intended to assert the semantics of the `for-in`
statement, but it was mistakenly authored to use a `for-of` statement.
Update the statement under test, and improve the testing methodology to
correctly assert the creation of distinct bindings.
Ensure that early errors restricting labelled function declarations
within WithStatement and IfStatement are honored. Rename existing tests
to match the specification's spelling.
A subtle aspect of the for-of iteration protocol concerns abrupt
completions that do *not* trigger iterator closing. Although this detail
is implicit in the current structure of the specification text, some
hosts may violate the protocol by closing the iterator because later
steps *do* specify that behavior.
The V8 engine is one such host--as of this writing, it incorrectly
closes the iterator when accessing the `value` property of the iterator
result produces an abrupt completion.
Add tests verifying that the iterator protocol is not violated in this
way for abrupt completions during the semantics of for-of evaluation.
Ensure that when HasBinding of an Object environment record returns an
abrupt completion, that same completion is returned to the runtime.
Update the meta-data of related tests for consistency with this new
test.
The latest revision of ECMA262 makes special provisions for classes
which extend the `null` value [1]. Update the relevant tests
accordingly.
[1] https://github.com/tc39/ecma262/issues/543
Add tests that assert the management of the running execution context's
LexicalEnvironment and VariableEnvironment components, as created by the
following abstract operations:
- NewDeclarativeEnvironment
- NewObjectEnvironment
- NewFunctionEnvironment
Many tests require the use of non-strict direct eval, meaning they may
not be run in strict mode. This does not effect coverage because the
semantics in these cases are not observable from strict mode code.
Some situations require the creation of a binding, but this binding has
no relevance to the test itself. In these cases, use names consisting
solely of the underscore character (`_`).
Avoid the use of Block statements wherever possible, as these trigger
the creation of additional environments which may interfere with the
behavior under test.
This harness function is not necessary in the majority of cases in which
it is used. Remove its usage to simplify tests and decrease the amount
of domain-specific knowledge necessary to contribute to the test suite.
Persist the harness function itself for use by future tests for ES2015
modules (such a helper is necessary for tests that are interpreted as
module code).
The runtime semantics of this statement are host-defined and therefore
untestable, but the statement's affect on the formal grammar should be
consistent across all implementations.