Mock method get arguments array_include

Question

Lets suppose i have a class like this:

class Splitter
  def split args
  end
end

And another class like this one:

class Text
  def initialize
     Splitter.new.split([["first","234nnmer"],nil])
     Splitter.new.split([["second","ewfr32$"],nil])
  end
end

How would you test that when Text.new is called:

Splitter is called twice,one time with the argument "first" and another time with the argument "twice" in the argument array

I tried:

 it "calls Splitter with arguments 'first' and 'second'" do
     expect_any_instance_of(Splitter).to receive(
            :split).with(array_including("first"))

     expect_any_instance_of(Splitter).to receive(
            :split).with(array_including("second"))

     Text.new
 end

This test doesn't work for me because I get errors like:

   -["array_including(first)"]
   +[["first","234nnmer"],nil]

Link: https://github.com/rspec/rspec-mocks#argument-matchers

humza · Accepted Answer · 2015-03-28 10:02:06Z

1

expect_any_instance_of(Splitter).
to receive(:split).with([array_including("first"), nil]).once

expect_any_instance_of(Splitter).
to receive(:split).with([array_including("second"), nil]).once

The following might also work:

array_including(array_including("first"))

answered Mar 28, 2015 at 10:02

humza

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2 Comments

John Smith Over a year ago

Sorry but somehow when i try array_including(array_including("first")) it returns me a error: -["array_including(array_including(first))"] +[["first","234nnmer"],nil]

John Smith Over a year ago

It seems like it transforms array_include to an String

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