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require 'spec_helper'
describe Virtus, '.module' do
shared_examples_for 'a valid virtus object' do
it 'reads and writes attribute' do
instance.name = 'John'
expect(instance.name).to eql('John')
end
end
shared_examples_for 'an object extended with virtus module' do
context 'with default configuration' do
subject { Virtus.module }
it_behaves_like 'a valid virtus object' do
let(:instance) { model.new }
end
it 'sets defaults' do
expect(instance.name).to eql('Jane')
end
end
context 'with constructor turned off' do
subject { Virtus.module(:constructor => false) }
it_behaves_like 'a valid virtus object' do
let(:instance) { model.new }
end
it 'skips including constructor' do
expect { model.new({}) }.to raise_error(ArgumentError)
end
end
context 'with mass assignment is turned off' do
subject { Virtus.module(:mass_assignment => false) }
it_behaves_like 'a valid virtus object'
it 'skips including mass assignment' do
expect(instance).not_to respond_to(:attributes)
expect(instance).not_to respond_to(:attributes=)
end
end
context 'with coercion turned off' do
subject { Virtus.module(:coerce => false) }
it_behaves_like 'a valid virtus object'
it 'builds non-coercible attributes' do
expect(object.send(:attribute_set)[:name]).not_to be_coercible
end
end
end
let(:mod) { Module.new }
let(:model) { Class.new }
let(:instance) { model.new }
before do
mod.send(:include, subject)
mod.attribute :name, String, :default => 'Jane'
mod.attribute :something
end
context 'with a class' do
let(:object) { model }
before do
model.send(:include, mod)
end
it 'provides attributes for the model' do
expect(model.attribute_set[:name]).to be_kind_of(Virtus::Attribute)
end
it 'defaults to Object for attribute type' do
expect(model.attribute_set[:something].type).to be(Axiom::Types::Object)
end
it_behaves_like 'an object extended with virtus module'
end
context 'with a model instance' do
let(:object) { instance }
before do
instance.extend(mod)
end
it 'provides attributes for the instance' do
expect(instance.send(:attribute_set)[:name]).to be_kind_of(Virtus::Attribute)
end
it_behaves_like 'an object extended with virtus module'
end
context 'with another module' do
let(:other) { Module.new }
let(:object) { instance }
before do
other.send(:include, mod)
model.send(:include, other)
end
it_behaves_like 'an object extended with virtus module'
it 'provides attributes for the model' do
expect(model.attribute_set[:name]).to be_kind_of(Virtus::Attribute)
end
end
context 'as a peer to another module within a class' do
subject { Virtus.module }
let(:other) { Module.new }
before do
other.send(:include, Virtus.module)
other.attribute :last_name, String, :default => 'Doe'
other.attribute :something_else
model.send(:include, mod)
model.send(:include, other)
end
it 'provides attributes for the model from both modules' do
expect(model.attribute_set[:name]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:something]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:last_name]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:something_else]).to be_kind_of(Virtus::Attribute)
end
it 'includes the attributes from both modules' do
expect(model.new.attributes.keys).to eq(
[:name, :something, :last_name, :something_else]
)
end
end
context 'with multiple other modules mixed into it' do
subject { Virtus.module }
let(:other) { Module.new }
let(:yet_another) { Module.new }
before do
other.send(:include, Virtus.module)
other.attribute :last_name, String, :default => 'Doe'
other.attribute :something_else
yet_another.send(:include, Virtus.module)
yet_another.send(:include, mod)
yet_another.send(:include, other)
yet_another.attribute :middle_name, String, :default => 'Foobar'
model.send(:include, yet_another)
end
it 'provides attributes for the model from all modules' do
expect(model.attribute_set[:name]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:something]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:last_name]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:something_else]).to be_kind_of(Virtus::Attribute)
expect(model.attribute_set[:middle_name]).to be_kind_of(Virtus::Attribute)
end
it 'includes the attributes from all modules' do
expect(model.new.attributes.keys).to eq(
[:name, :something, :last_name, :something_else, :middle_name]
)
end
end
end
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