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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::PostgresPartition, type: :model do
let(:schema) { 'gitlab_partitions_dynamic' }
let(:name) { '_test_partition_01' }
let(:identifier) { "#{schema}.#{name}" }
before do
ActiveRecord::Base.connection.execute(<<~SQL)
CREATE TABLE public._test_partitioned_table (
id serial NOT NULL,
created_at timestamptz NOT NULL,
PRIMARY KEY (id, created_at)
) PARTITION BY RANGE(created_at);
CREATE TABLE #{identifier} PARTITION OF public._test_partitioned_table
FOR VALUES FROM ('2020-01-01') to ('2020-02-01');
SQL
end
def find(identifier)
described_class.by_identifier(identifier)
end
describe 'associations' do
it { is_expected.to belong_to(:postgres_partitioned_table).with_primary_key('identifier').with_foreign_key('parent_identifier') }
end
it_behaves_like 'a postgres model'
describe '.for_parent_table' do
let(:second_name) { '_test_partition_02' }
before do
ActiveRecord::Base.connection.execute(<<~SQL)
CREATE TABLE #{schema}.#{second_name} PARTITION OF public._test_partitioned_table
FOR VALUES FROM ('2020-02-01') to ('2020-03-01');
CREATE TABLE #{schema}._test_other_table (
id serial NOT NULL,
created_at timestamptz NOT NULL,
PRIMARY KEY (id, created_at)
) PARTITION BY RANGE(created_at);
CREATE TABLE #{schema}._test_other_partition_01 PARTITION OF #{schema}._test_other_table
FOR VALUES FROM ('2020-01-01') to ('2020-02-01');
SQL
end
it 'returns partitions for the parent table in the current schema' do
partitions = described_class.for_parent_table('_test_partitioned_table')
expect(partitions.count).to eq(2)
expect(partitions.pluck(:name)).to eq([name, second_name])
end
it 'does not return partitions for tables not in the current schema' do
expect(described_class.for_parent_table('_test_other_table').count).to eq(0)
end
end
describe '#parent_identifier' do
it 'returns the parent table identifier' do
expect(find(identifier).parent_identifier).to eq('public._test_partitioned_table')
end
end
describe '#condition' do
it 'returns the condition for the partitioned values' do
expect(find(identifier).condition).to eq("FOR VALUES FROM ('2020-01-01 00:00:00+00') TO ('2020-02-01 00:00:00+00')")
end
end
describe '.partition_exists?' do
subject { described_class.partition_exists?(table_name) }
context 'when the partition exists' do
let(:table_name) { "ci_builds_metadata" }
it { is_expected.to be_truthy }
end
context 'when the partition does not exist' do
let(:table_name) { 'partition_does_not_exist' }
it { is_expected.to be_falsey }
end
end
describe '.legacy_partition_exists?' do
subject { described_class.legacy_partition_exists?(table_name) }
context 'when the partition exists' do
let(:table_name) { "ci_builds_metadata" }
it { is_expected.to be_truthy }
end
context 'when the partition does not exist' do
let(:table_name) { 'partition_does_not_exist' }
it { is_expected.to be_falsey }
end
end
end
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