This contains a few more tests for Array.fromAsync, in addition to what
has already been merged and what is under review at #3791.
This covers the following items from the testing plan at #3725:
- Success cases
- Creates promise
- Create new array/arraylike in promise (with length = length property)
- Input
- Invalid input values
- nonconforming object (arraylike without length, missing keys)
- Covered by polyfill tests
- Result promise rejects if length access fails (non-iterable input)
- Unaffected by globalThis.Symbol mutation (non-iterable)
- this-value
- this-value is a constructor
- this-value is not a constructor
- If this is a constructor, and items doesn't have a Symbol.iterator,
returns a new instance of this
- Iterator closed when property creation on this fails
- Returned promise rejects when ^
- Other tests
- Error is thrown for all CreateDataProperty fails
- Non-writable properties are overwritten by CreateDataProperty
- Input with missing values
Co-authored-by: Ms2ger <Ms2ger@igalia.com>
- normal case with synchronous and asynchronous mapfn
- a non-callable value is passed as mapfn
- behaviour of various values of thisArg in strict and sloppy mode
- mapfn result is awaited once per iteration
- iterator is closed when mapfn throws
Here are some of the standard tests for property metadata of the
Array.fromAsync property and for the built-in function object. These don't
require doing anything asynchronously, so can be considered separately
from the Async Helpers RFC.
Philip Chimento
Aditi
Ms2ger