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# frozen_string_literal: true
RSpec.describe Morpher::Record do
describe '.new' do
def apply
described_class.new(**attributes)
end
let(:fields) { { foo: Morpher::Transform::STRING } }
context 'on absent :optional' do
let(:attributes) { { required: fields } }
it 'defaults to empty optional' do
expect(apply.to_h).to eql(
optional: {},
required: fields
)
end
end
context 'on absent :required' do
let(:attributes) { { optional: fields } }
it 'defaults to empty optional' do
expect(apply.to_h).to eql(
optional: fields,
required: {}
)
end
end
context 'on present :required and :optional' do
let(:attributes) do
{
optional: { foo: Morpher::Transform::STRING },
required: { bar: Morpher::Transform::STRING }
}
end
it 'does not apply defaults' do
expect(apply.to_h).to eql(attributes)
end
end
end
describe '#included' do
define_method(:apply) do
instance = instance()
host.class_eval { include instance }
end
let(:attributes) { { a: 'foo', b: 10, c: nil } }
let(:host) { Class.new }
let(:host_instance) { host.new(attributes) }
let(:instance) do
described_class.new(
required: required_transform,
optional: optional_transform
)
end
let(:required_transform) do
{
a: Morpher::Transform::Primitive.new(String),
b: Morpher::Transform::Primitive.new(Integer)
}
end
let(:optional_transform) do
{
c: Morpher::Transform::Boolean.new
}
end
let(:expected_required_keys_transform) do
[
Morpher::Transform::Hash::Key.new(:a, required_transform.fetch(:a)),
Morpher::Transform::Hash::Key.new(:b, required_transform.fetch(:b))
]
end
let(:expected_optional_keys_transform) do
[
Morpher::Transform::Hash::Key.new(:c, optional_transform.fetch(:c))
]
end
it 'creates public #to_h method on host instances' do
apply
expect(host_instance.to_h).to eql(attributes)
end
it 'includes Adamantium::Flat into the host' do
apply
expect(host.ancestors).to include(Adamantium::Flat)
expect(host_instance.frozen?).to be(true)
end
it 'allows to equalize on host instances' do
apply
expect(host_instance.eql?(host.new(attributes))).to be(true)
end
it 'creates the expected TRANSFORMER constant on the host' do
apply
expect(host::TRANSFORM).to eql(
Morpher::Transform::Sequence.new(
[
Morpher::Transform::Primitive.new(Hash),
Morpher::Transform::Hash::Symbolize.new,
Morpher::Transform::Hash.new(
required: expected_required_keys_transform,
optional: expected_optional_keys_transform
),
Morpher::Transform::Success.new(host.method(:new))
]
)
)
end
it 'does not create the #value method on the instance' do
apply
expect(instance.instance_methods).to_not include(:value)
end
it 'does not create the TRANSFORMER constant on the instance' do
apply
expect(instance.constants).to_not include(:TRANSFORMER)
end
end
end
|
