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require 'spec_helper'
describe Virtus::Attribute, '.build' do
subject { described_class.build(type, options.merge(:name => name)) }
let(:name) { :test }
let(:type) { String }
let(:options) { {} }
shared_examples_for 'a valid attribute instance' do
it { is_expected.to be_instance_of(Virtus::Attribute) }
it { is_expected.to be_frozen }
end
context 'without options' do
it_behaves_like 'a valid attribute instance'
it { is_expected.to be_coercible }
it { is_expected.to be_public_reader }
it { is_expected.to be_public_writer }
it { is_expected.not_to be_lazy }
it 'sets up a coercer' do
expect(subject.options[:coerce]).to be(true)
expect(subject.coercer).to be_instance_of(Virtus::Attribute::Coercer)
end
end
context 'when name is passed as a string' do
let(:name) { 'something' }
describe '#name' do
subject { super().name }
it { is_expected.to be(:something) }
end
end
context 'when coercion is turned off in options' do
let(:options) { { :coerce => false } }
it_behaves_like 'a valid attribute instance'
it { is_expected.not_to be_coercible }
end
context 'when options specify reader visibility' do
let(:options) { { :reader => :private } }
it_behaves_like 'a valid attribute instance'
it { is_expected.not_to be_public_reader }
it { is_expected.to be_public_writer }
end
context 'when options specify writer visibility' do
let(:options) { { :writer => :private } }
it_behaves_like 'a valid attribute instance'
it { is_expected.to be_public_reader }
it { is_expected.not_to be_public_writer }
end
context 'when options specify lazy accessor' do
let(:options) { { :lazy => true } }
it_behaves_like 'a valid attribute instance'
it { is_expected.to be_lazy }
end
context 'when options specify strict mode' do
let(:options) { { :strict => true } }
it_behaves_like 'a valid attribute instance'
it { is_expected.to be_strict }
end
context 'when options specify nullify blank mode' do
let(:options) { { :nullify_blank => true } }
it_behaves_like 'a valid attribute instance'
it { is_expected.to be_nullify_blank }
end
context 'when type is a string' do
let(:type) { 'Integer' }
it_behaves_like 'a valid attribute instance'
describe '#type' do
subject { super().type }
it { is_expected.to be(Axiom::Types::Integer) }
end
end
context 'when type is a range' do
let(:type) { 0..10 }
it_behaves_like 'a valid attribute instance'
describe '#type' do
subject { super().type }
it { is_expected.to be(Axiom::Types.infer(Range)) }
end
end
context 'when type is a symbol of an existing class constant' do
let(:type) { :String }
it_behaves_like 'a valid attribute instance'
describe '#type' do
subject { super().type }
it { is_expected.to be(Axiom::Types::String) }
end
end
context 'when type is an axiom type' do
let(:type) { Axiom::Types::Integer }
it_behaves_like 'a valid attribute instance'
describe '#type' do
subject { super().type }
it { is_expected.to be(type) }
end
end
context 'when custom attribute class exists for a given primitive' do
let(:type) { Class.new }
let(:attribute) { Class.new(Virtus::Attribute) }
before do
attribute.primitive(type)
end
it { is_expected.to be_instance_of(attribute) }
describe '#type' do
subject { super().type }
it { is_expected.to be(Axiom::Types::Object) }
end
end
context 'when custom attribute class exists for a given array with member coercion defined' do
let(:type) { Class.new(Array)[String] }
let(:attribute) { Class.new(Virtus::Attribute) }
before do
attribute.primitive(type.class)
end
it { is_expected.to be_instance_of(attribute) }
describe '#type' do
subject { super().type }
it { is_expected.to be < Axiom::Types::Collection }
end
end
context 'when custom collection-like attribute class exists for a given enumerable primitive' do
let(:type) { Class.new { include Enumerable } }
let(:attribute) { Class.new(Virtus::Attribute::Collection) }
before do
attribute.primitive(type)
end
it { is_expected.to be_instance_of(attribute) }
describe '#type' do
subject { super().type }
it { is_expected.to be < Axiom::Types::Collection }
end
end
end
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