Class: MinitestToRspec::Minitest::Stub

Inherits:
Object
  • Object
show all
Defined in:
lib/minitest_to_rspec/minitest/stub.rb

Overview

Represents an ‘expects` or a `stubs` from mocha. Conceptually the same as `Rspec::Stub`.

Instance Method Summary collapse

Constructor Details

#initialize(call) ⇒ Stub

Returns a new instance of Stub.



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 12

def initialize(call)
  Type.assert(Input::Model::Call, call)
  @call = call
end

Instance Method Details

#any_instance? ⇒ Boolean

Returns true if we are stubbing any instance of ‘receiver`.

Returns:

  • (Boolean) 


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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 25

def any_instance?
  @call.calls_in_receiver_chain.any? { |i|
    i.method_name.to_s.include?('any_instance')
  }
end

#count ⇒ Object

TODO: add support for

  • at_least

  • at_least_once

  • at_most

  • at_most_once

  • never



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 65

def count
  case @call.method_name
  when :expects, :once
    1
  when :returns
    the_call_to_stubs_or_expects.method_name == :expects ? 1 : nil
  when :twice
    2
  end
end

#message ⇒ Object

Given e.g. ‘expects(:y)`, returns `:y`.



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 32

def message
  case @call.method_name
  when :expects, :stubs
    @call.arguments.first
  else
    call = the_call_to_stubs_or_expects
    if call.nil?
      raise UnknownVariant, 'not a mocha stub, no stubs/expects'
    else
      call.arguments.first
    end
  end
end

#receiver ⇒ Object

Given e.g. ‘X.any_instance.expects(:y)`, returns `X`.



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 18

def receiver
  chain = @call.receiver_chain
  last = chain[-1]
  last.nil? ? chain[-2] : last
end

#returns ⇒ Object 



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 50

def returns
  case @call.method_name
  when :returns
    @call.arguments.first
  else
    @call.find_call_in_receiver_chain(:returns)&.arguments&.first
  end
end

#with ⇒ Object 



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# File 'lib/minitest_to_rspec/minitest/stub.rb', line 46

def with
  @call.find_call_in_receiver_chain(:with)&.arguments&.first
end