CODEWITHSUNDEEP
iosswiftinteger-overflow
Matthieu Riegler
Matthieu Riegler

Reputation: 55152

Declare dictionary [String:AnyObject] with overflowing Integers

In one of my Unit tests I need to declare a [String:AnyObject] which contains sometimes big (>32 bits) Integer values. 

[
   ["timestamp": 1460793600000,"expectedState": "close"],
   ["timestamp": 1460822400000,"expectedState": "open"]
]

Writing the integers as literals triggers the following error :

Integer literal overflows when stored into 'Int' error

I know I could write it with NSNumbers 

[
   ["timestamp": NSNumber(longLong:1460793600000),"expectedState": "close"],
   ["timestamp": NSNumber(longLong:1460822400000),"expectedState": "open"]
]

But that doesn't match the data I'm expecting (It's a JSON array stored in a Transformatable Core Data property).

The purpose of my test is to ensure that I'm handling correctly 64 bits values on a 32bits device.

Upvotes: 1

Views: 63

Answers (1)

Matthieu Riegler
Matthieu Riegler

Reputation: 55152

Actually, I feel a bit dumb on this.

The numbers returned by my NSManagedObject's array are of type __NSCFNumber so they are a NSNumber.

Yet, I'm still figuring out how I could write a test to ensure It handles 64 bits values without having to running the unit test on a 32bits device.

Upvotes: 0

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