fromJSON: Return date if value is a date

[dblythy]

Not sure how often this error would occur, but if you try to create a ParseObject with fromJSON with a Date, the date field is returned as {}

Related

Evidently, this bug also affects the localDataStore tests as:

descending date order should be larger (newer) to smaller (older)

Obj1: createdAt: new Date('2018-08-10T00:00:00.000Z'),
Obj2: createdAt: new Date('2018-08-11T00:00:00.000Z'),
Obj3: createdAt: new Date('2018-08-12T00:00:00.000Z'),

So, this test:

    q = new ParseQuery('Item');
    q.descending('_created_at');
    q.fromLocalDatastore();
    results = await q.find();

Should return Obj3, Obj2, Obj1. Instead, it returns Obj1, Obj2, then Obj3.

If this doesn't make sense, if you change the order that the objects are loaded here (e.g to Obj2, Obj3, Obj1), the tests will fail on the current master.

[codecov]

Codecov Report

Merging #1293 (9aa44a4) into master (c8270a7) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            master     #1293    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files           58        59     +1     
  Lines         5650      5788   +138     
  Branches      1273      1299    +26     
==========================================
+ Hits          5650      5788   +138     

Impacted Files	Coverage Δ
src/EventuallyQueue.js	100.00% <100.00%> (ø)
src/Parse.js	100.00% <100.00%> (ø)
src/ParseObject.js	100.00% <100.00%> (ø)
src/decode.js	100.00% <100.00%> (ø)

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[dplewis]

Looks good, but the coverage decreased.

[dblythy]

Should be good now @dplewis