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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::PostgresPartitionedTable, type: :model do
let(:schema) { 'public' }
let(:name) { 'foo_range' }
let(:identifier) { "#{schema}.#{name}" }
before do
ActiveRecord::Base.connection.execute(<<~SQL)
CREATE TABLE #{identifier} (
id serial NOT NULL,
created_at timestamptz NOT NULL,
PRIMARY KEY (id, created_at)
) PARTITION BY RANGE(created_at);
CREATE TABLE public.foo_list (
id serial NOT NULL,
row_type text NOT NULL,
PRIMARY KEY (id, row_type)
) PARTITION BY LIST(row_type);
CREATE TABLE public.foo_hash (
id serial NOT NULL,
row_value int NOT NULL,
PRIMARY KEY (id, row_value)
) PARTITION BY HASH (row_value);
SQL
end
def find(identifier)
described_class.by_identifier(identifier)
end
describe 'associations' do
it { is_expected.to have_many(:postgres_partitions).with_primary_key('identifier').with_foreign_key('parent_identifier') }
end
it_behaves_like 'a postgres model'
describe '.find_by_name_in_current_schema' do
it 'finds the partitioned tables in the current schema by name', :aggregate_failures do
partitioned_table = described_class.find_by_name_in_current_schema(name)
expect(partitioned_table).not_to be_nil
expect(partitioned_table.identifier).to eq(identifier)
end
it 'does not find partitioned tables in a different schema' do
ActiveRecord::Base.connection.execute(<<~SQL)
ALTER TABLE #{identifier} SET SCHEMA gitlab_partitions_dynamic
SQL
expect(described_class.find_by_name_in_current_schema(name)).to be_nil
end
end
describe '#dynamic?' do
it 'returns true for tables partitioned by range' do
expect(find('public.foo_range')).to be_dynamic
end
it 'returns true for tables partitioned by list' do
expect(find('public.foo_list')).to be_dynamic
end
it 'returns false for tables partitioned by hash' do
expect(find('public.foo_hash')).not_to be_dynamic
end
end
describe '#static?' do
it 'returns false for tables partitioned by range' do
expect(find('public.foo_range')).not_to be_static
end
it 'returns false for tables partitioned by list' do
expect(find('public.foo_list')).not_to be_static
end
it 'returns true for tables partitioned by hash' do
expect(find('public.foo_hash')).to be_static
end
end
describe '#strategy' do
it 'returns the partitioning strategy' do
expect(find(identifier).strategy).to eq('range')
end
end
describe '#key_columns' do
it 'returns the partitioning key columns' do
expect(find(identifier).key_columns).to match_array(['created_at'])
end
end
end
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