Class: ConvenientService::RSpec::PrimitiveMatchers::Classes::DelegateTo::Entities::SubMatchers::Arguments::Commands::ApplyStubToTrackDelegations

Inherits:
Support::Command
  • Object
show all
Includes:
RSpec::Mocks::ExampleMethods
Defined in:
lib/convenient_service/rspec/primitive_matchers/classes/delegate_to/entities/sub_matchers/arguments/commands/apply_stub_to_track_delegations.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Support::Command

[], call

Constructor Details

#initialize(matcher:) ⇒ void

Parameters:



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# File 'lib/convenient_service/rspec/primitive_matchers/classes/delegate_to/entities/sub_matchers/arguments/commands/apply_stub_to_track_delegations.rb', line 30

def initialize(matcher:)
  @matcher = matcher
end

Instance Attribute Details

#matcher ⇒ ConvenientService::RSpec::PrimitiveMatchers::Classes::DelegateTo (readonly)

Returns:



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# File 'lib/convenient_service/rspec/primitive_matchers/classes/delegate_to/entities/sub_matchers/arguments/commands/apply_stub_to_track_delegations.rb', line 24

def matcher
  @matcher
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/convenient_service/rspec/primitive_matchers/classes/delegate_to/entities/sub_matchers/arguments/commands/apply_stub_to_track_delegations.rb', line 34

def call
  ##
  # NOTE: RSpec `allow(object).to receive(method).with(*args, **kwargs)` does NOT support block.
  # https://github.com/rspec/rspec-mocks/issues/1182#issuecomment-679820352
  #
  # NOTE: RSpec `allow(object).to receive(method) do` does NOT support `and_call_original`.
  # https://github.com/rspec/rspec-mocks/issues/774#issuecomment-54245277
  #
  # NOTE: That is why `and_wrap_original` is used.
  # https://relishapp.com/rspec/rspec-mocks/docs/configuring-responses/wrapping-the-original-implementation
  #
  # TODO: Check whether `matcher.object.frozen?` in order to show more explanatory exception instead of the following (provide an example of how to avoid it in the exception message):
  #   ArgumentError:
  #     Cannot proxy frozen objects, rspec-mocks relies on proxies for method stubbing and expectations
  #
  allow(matcher.inputs.object).to receive(matcher.inputs.method).and_wrap_original do |original, *actual_args, **actual_kwargs, &actual_block|
    ##
    # TODO: Add backtrace for easier reason tracing.
    #
    matcher.outputs.delegations << Entities::Delegation.new(
      object: matcher.inputs.object,
      method: matcher.inputs.method,
      args: actual_args,
      kwargs: actual_kwargs,
      block: actual_block
    )

    ##
    # NOTE: Imitates `and_call_original`.
    # TODO: What to do when `original.call` raises an exception?
    #
    original.call(*actual_args, **actual_kwargs, &actual_block) if matcher.inputs.should_call_original?
  end
end