how do I use Rspec to check if something is an Array?

Question

I tried the following and got the associated error:

Failure/Error: reminders_array.should be_an(Array)
     NoMethodError:
       undefined method `should' for #<Array:0x0000000202c9a0>

reminders_array should be an Array and I would like to check for it with an Rspec test. How should I do it differently from the tested assertion above?

pangpang · Accepted Answer · 2015-10-09 07:21:52Z

5

should is old syntax, you should do like this:

expect(reminders_array).to be_an(Array)

or:

expect(reminders_array).to be_an_instance_of(Array)

You can get more info from rspec-expectations

edited Oct 9, 2015 at 7:21

answered Oct 9, 2015 at 7:10

pangpang

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3 Comments

Satchel Over a year ago

yes, I tried it and still got an error showing it above.

pangpang Over a year ago

@Angela It is impossible, can you show the full error stack?

Satchel Over a year ago

it works now, it wasn't working when I first tried the same thing without should....well, I guess it's working then, thanks.

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