Is there a "not_expects" for mocha/rspec?

Question

I need to make sure a method is not called giving a specific set of conditions, and I'm looking for the opposite of the mocha expects.

score 28 · Accepted Answer · edited Feb 27 '15 at 11:37

28

Look at mocha's never or rspec's should_not_receive and should_receive(:selector).exactly(n).times

edited Feb 27 '15 at 11:37

p.matsinopoulos

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answered Feb 03 '11 at 01:23

Jonah

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Mocha link is outdated. [New documentation on never](http://gofreerange.com/mocha/docs/Mocha/Expectation.html#never-instance_method) – Seth Bro Oct 01 '14 at 03:19

score 3 · Answer 2 · answered Feb 03 '11 at 01:21

3

I'm not a mocha expert by any means, but I suspect what you need may be supplied by a never modifier for an expectation.

answered Feb 03 '11 at 01:21

Don Roby

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score 3 · Answer 3 · answered May 09 '19 at 07:13

3

Mocha example from the documentation

object = mock()
object.expects(:expected_method).never
object.expected_method # => unexpected invocation

object = mock()
object.expects(:expected_method).never
# => verify succeeds

answered May 09 '19 at 07:13

RamRovi

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score 2 · Answer 4 · answered May 08 '17 at 22:05

RSpec 3.6 now handles this with expect(...).not_to receive(...).

From the link:

RSpec.describe "A negative message expectation" do
  it "passes if the message is never received" do
    dbl = double("Some Collaborator").as_null_object
    expect(dbl).not_to receive(:foo)
  end
end

Is there a "not_expects" for mocha/rspec?

4 Answers4