ManageIQ/activerecord-virtual_attributes

RSpec::Matchers.define :have_virtual_attribute do |name, type|
  match do |klass|
    expect(klass.has_attribute?(name)).to be_truthy
    expect(klass.virtual_attribute?(name)).to be_truthy
    expect(klass.type_for_attribute(name.to_s).type).to(eq(type)) if type
    klass.instance_methods.include?(name.to_sym)
  end

  failure_message do |klass|
    "expected #{klass.name} to have virtual column #{name.inspect} with type #{type.inspect}"
  end

  failure_message_when_negated do |klass|
    "expected #{klass.name} to not have virtual column #{name.inspect} with type #{type.inspect}"
  end
end

RSpec::Matchers.alias_matcher(:have_virtual_column, :have_virtual_attribute)