Module: ViewModel::TestHelpers

Extended by:
ActiveSupport::Concern
Defined in:
lib/view_model/test_helpers.rb

Overview

Helpers useful for writing tests for viewmodel implementations

Defined Under Namespace

Classes: ARVMBuilder

Instance Method Summary collapse

Instance Method Details

#alter_by_view!(viewmodel_class, model, serialize_context: viewmodel_class.new_serialize_context, deserialize_context: viewmodel_class.new_deserialize_context) ⇒ Object

Test helper: update a model by manipulating the full view hash



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# File 'lib/view_model/test_helpers.rb', line 20

def alter_by_view!(viewmodel_class, model,
                   serialize_context:   viewmodel_class.new_serialize_context,
                   deserialize_context: viewmodel_class.new_deserialize_context)

  models = Array.wrap(model)

  data, refs = serialize_with_references(models.map { |m| viewmodel_class.new(m) }, serialize_context: serialize_context)

  if model.is_a?(Array)
    yield(data, refs)
  else
    yield(data.first, refs)
  end

  begin
    result = viewmodel_class.deserialize_from_view(
      data, references: refs, deserialize_context: deserialize_context)

    result.each do |vm|
      assert_consistent_record(vm)
    end

    result = result.first unless model.is_a?(Array)

    models.each { |m| m.reload }

    return result, deserialize_context
  end
end

#serialize(serializable, serialize_context: ViewModel.new_serialize_context) ⇒ Object 



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# File 'lib/view_model/test_helpers.rb', line 14

def serialize(serializable, serialize_context: ViewModel.new_serialize_context)
  data, _ = serialize_with_references(serializable, serialize_context: serialize_context)
  data
end

#serialize_with_references(serializable, serialize_context: ViewModel.new_serialize_context) ⇒ Object 



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# File 'lib/view_model/test_helpers.rb', line 8

def serialize_with_references(serializable, serialize_context: ViewModel.new_serialize_context)
  data = ViewModel.serialize_to_hash(serializable, serialize_context: serialize_context)
  references = serialize_context.serialize_references_to_hash
  return data, references
end