Module: EasyCommand::SpecHelpers::MockCommandHelper

Defined in:
lib/easy_command/spec_helpers/mock_command_helper.rb

Constant Summary collapse

NO_PARAMS_PASSED = 
Object.new

Instance Method Summary collapse

Instance Method Details

#mock_command(command, success:, result: nil, errors: {}, params: NO_PARAMS_PASSED) ⇒ Object 



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# File 'lib/easy_command/spec_helpers/mock_command_helper.rb', line 29

def mock_command(command, success:, result: nil, errors: {}, params: NO_PARAMS_PASSED)
  if Object.const_defined?('FakeCommandErrors')
    klass = Object.const_get('FakeCommandErrors')
  else
    klass = Object.const_set 'FakeCommandErrors', Class.new
    klass.prepend EasyCommand
  end
  fake_command = klass.new
  if errors.any?
    errors.each do |attr, details|
      details.each do |detail|
        fake_command.errors.add(attr, detail[:code], detail[:message])
      end
    end
  end
  double = instance_double(command)
  allow(double).to receive(:as_sub_command).and_return(double)
  allow(double).to receive(:errors).and_return(fake_command.errors)
  monad =
    if success
      EasyCommand::Success.new(result)
    else
      EasyCommand::Failure.new(result).with_errors(fake_command.errors)
    end
  allow(double).to receive(:call).and_return(monad)
  allow(double).to receive(:on_success).and_return(double)
  if params == NO_PARAMS_PASSED
    allow(command).to receive(:call).and_return(monad)
    allow(command).to receive(:new).and_return(double)
  else
    mock_params, hash_params = extract_mock_params(params)
    allow(command).to receive(:call).with(*mock_params, **hash_params).and_return(monad)
    allow(command).to receive(:new).with(*mock_params, **hash_params).and_return(double)
  end
  double
end

#mock_successful_command(command, result:, params: NO_PARAMS_PASSED) ⇒ Object 



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# File 'lib/easy_command/spec_helpers/mock_command_helper.rb', line 8

def mock_successful_command(command, result:, params: NO_PARAMS_PASSED)
  mock_command(command, success: true, result: result, params: params)
end

#mock_unsuccessful_command(command, errors:, params: NO_PARAMS_PASSED) ⇒ Object

Example :

  mock_unsuccessful_command(ExtinguishDebtAndLetterIt, errors: {
    entry: { not_found: "Couldn't find Entry with 'document_identifier'='foo'" }
  })

is equivalent to
  mock_command(ExtinguishDebtAndLetterIt,
    success: false,
    result: nil,
    errors: {:entry=>[code: :not_found, message: "Couldn't find Entry with 'document_identifier'='foo'"]},
  )



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# File 'lib/easy_command/spec_helpers/mock_command_helper.rb', line 25

def mock_unsuccessful_command(command, errors:, params: NO_PARAMS_PASSED)
  mock_command(command, success: false, errors: detailed_errors(errors), params: params)
end