90 lines
2.4 KiB
Ruby
90 lines
2.4 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require 'spec_helper'
|
|
|
|
RSpec.describe Gitlab::Database::PostgresIndex do
|
|
let(:schema) { 'public' }
|
|
let(:name) { 'foo_idx' }
|
|
let(:identifier) { "#{schema}.#{name}" }
|
|
|
|
before do
|
|
ActiveRecord::Base.connection.execute(<<~SQL)
|
|
CREATE INDEX #{name} ON public.users (name);
|
|
CREATE UNIQUE INDEX bar_key ON public.users (id);
|
|
|
|
CREATE TABLE example_table (id serial primary key);
|
|
SQL
|
|
end
|
|
|
|
def find(name)
|
|
described_class.by_identifier(name)
|
|
end
|
|
|
|
it_behaves_like 'a postgres model'
|
|
|
|
describe '.regular' do
|
|
it 'only non-unique indexes' do
|
|
expect(described_class.regular).to all(have_attributes(unique: false))
|
|
end
|
|
|
|
it 'only non partitioned indexes ' do
|
|
expect(described_class.regular).to all(have_attributes(partitioned: false))
|
|
end
|
|
|
|
it 'only indexes that dont serve an exclusion constraint' do
|
|
expect(described_class.regular).to all(have_attributes(exclusion: false))
|
|
end
|
|
end
|
|
|
|
describe '.not_match' do
|
|
it 'excludes indexes matching the given regex' do
|
|
expect(described_class.not_match('^bar_k').map(&:name)).to all(match(/^(?!bar_k).*/))
|
|
end
|
|
|
|
it 'matches indexes without this prefix regex' do
|
|
expect(described_class.not_match('^bar_k')).not_to be_empty
|
|
end
|
|
end
|
|
|
|
describe '.random_few' do
|
|
it 'limits to two records by default' do
|
|
expect(described_class.random_few(2).size).to eq(2)
|
|
end
|
|
end
|
|
|
|
describe '#unique?' do
|
|
it 'returns true for a unique index' do
|
|
expect(find('public.bar_key')).to be_unique
|
|
end
|
|
|
|
it 'returns false for a regular, non-unique index' do
|
|
expect(find('public.foo_idx')).not_to be_unique
|
|
end
|
|
|
|
it 'returns true for a primary key index' do
|
|
expect(find('public.example_table_pkey')).to be_unique
|
|
end
|
|
end
|
|
|
|
describe '#valid_index?' do
|
|
it 'returns true if the index is invalid' do
|
|
expect(find(identifier)).to be_valid_index
|
|
end
|
|
|
|
it 'returns false if the index is marked as invalid' do
|
|
ActiveRecord::Base.connection.execute(<<~SQL)
|
|
UPDATE pg_index SET indisvalid=false
|
|
FROM pg_class
|
|
WHERE pg_class.relname = 'foo_idx' AND pg_index.indexrelid = pg_class.oid
|
|
SQL
|
|
|
|
expect(find(identifier)).not_to be_valid_index
|
|
end
|
|
end
|
|
|
|
describe '#definition' do
|
|
it 'returns the index definition' do
|
|
expect(find(identifier).definition).to eq('CREATE INDEX foo_idx ON public.users USING btree (name)')
|
|
end
|
|
end
|
|
end
|