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# frozen_string_literal: true
require 'spec_helper'
module EnumInheritableTestCase
class Animal < ActiveRecord::Base
include EnumInheritance
def self.table_name = '_test_animals'
def self.inheritance_column = 'species'
enum species: {
dog: 1,
cat: 2,
bird: 3
}
def self.inheritance_column_to_class_map = {
dog: 'EnumInheritableTestCase::Dog',
cat: 'EnumInheritableTestCase::Cat'
}.freeze
end
class Dog < Animal; end
class Cat < Animal; end
end
RSpec.describe EnumInheritance, feature_category: :shared do
describe '.sti_class_to_enum_map' do
it 'is the inverse of sti_class_to_enum_map' do
expect(EnumInheritableTestCase::Animal.sti_class_to_enum_map).to include({
'EnumInheritableTestCase::Dog' => :dog,
'EnumInheritableTestCase::Cat' => :cat
})
end
end
describe '.sti_class_for' do
it 'is the base class if no mapping for type is provided' do
expect(EnumInheritableTestCase::Animal.sti_class_for('bird')).to be(EnumInheritableTestCase::Animal)
end
it 'is class if mapping for type is provided' do
expect(EnumInheritableTestCase::Animal.sti_class_for('dog')).to be(EnumInheritableTestCase::Dog)
end
end
describe '.sti_name' do
it 'is nil if map does not exist' do
expect(EnumInheritableTestCase::Animal.sti_name).to eq("")
end
it 'is nil if map exists' do
expect(EnumInheritableTestCase::Dog.sti_name).to eq("dog")
end
end
describe 'querying' do
before_all do
EnumInheritableTestCase::Animal.connection.execute(<<~SQL)
CREATE TABLE _test_animals (
id bigserial primary key not null,
species bigint not null
);
SQL
end
let_it_be(:dog) { EnumInheritableTestCase::Dog.create! }
let_it_be(:cat) { EnumInheritableTestCase::Cat.create! }
let_it_be(:bird) { EnumInheritableTestCase::Animal.create!(species: :bird) }
describe 'object class when querying' do
context 'when mapping for type exists' do
it 'is the super class', :aggregate_failures do
queried_dog = EnumInheritableTestCase::Animal.find_by(id: dog.id)
expect(queried_dog).to eq(dog)
# Test below is already part of the test above, but it makes the desired behavior explicit
expect(queried_dog.class).to eq(EnumInheritableTestCase::Dog)
queried_cat = EnumInheritableTestCase::Animal.find_by(id: cat.id)
expect(queried_cat).to eq(cat)
expect(queried_cat.class).to eq(EnumInheritableTestCase::Cat)
end
end
context 'when mapping does not exist' do
it 'is the base class' do
expect(EnumInheritableTestCase::Animal.find_by(id: bird.id).class).to eq(EnumInheritableTestCase::Animal)
end
end
end
it 'finds by type' do
expect(EnumInheritableTestCase::Animal.where(species: :dog).first!).to eq(dog)
end
end
end
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