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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe LooseForeignKeys::ModificationTracker do
subject(:tracker) { described_class.new }
describe '#over_limit?' do
it 'is true when deletion MAX_DELETES is exceeded' do
stub_const('LooseForeignKeys::ModificationTracker::MAX_DELETES', 5)
tracker.add_deletions('issues', 10)
expect(tracker).to be_over_limit
end
it 'is false when MAX_DELETES is not exceeded' do
tracker.add_deletions('issues', 3)
expect(tracker).not_to be_over_limit
end
it 'is true when deletion MAX_UPDATES is exceeded' do
stub_const('LooseForeignKeys::ModificationTracker::MAX_UPDATES', 5)
tracker.add_updates('issues', 3)
tracker.add_updates('issues', 4)
expect(tracker).to be_over_limit
end
it 'is false when MAX_UPDATES is not exceeded' do
tracker.add_updates('projects', 3)
expect(tracker).not_to be_over_limit
end
it 'is true when max runtime is exceeded' do
monotonic_time_before = 1 # this will be the start time
monotonic_time_after = described_class::MAX_RUNTIME.to_i + 1 # this will be returned when over_limit? is called
allow(Gitlab::Metrics::System).to receive(:monotonic_time).and_return(monotonic_time_before, monotonic_time_after)
tracker
expect(tracker).to be_over_limit
end
it 'is false when max runtime is not exceeded' do
expect(tracker).not_to be_over_limit
end
end
describe '#add_deletions' do
it 'increments a Prometheus counter' do
counter = Gitlab::Metrics.registry.get(:loose_foreign_key_deletions)
subject.add_deletions(:users, 4)
expect(counter.get(table: :users)).to eq(4)
end
end
describe '#add_updates' do
it 'increments a Prometheus counter' do
counter = Gitlab::Metrics.registry.get(:loose_foreign_key_updates)
subject.add_updates(:users, 4)
expect(counter.get(table: :users)).to eq(4)
end
end
describe '#stats' do
it 'exposes stats' do
freeze_time do
tracker
tracker.add_deletions('issues', 5)
tracker.add_deletions('issues', 2)
tracker.add_deletions('projects', 2)
tracker.add_updates('projects', 3)
expect(tracker.stats).to eq({
over_limit: false,
delete_count_by_table: { 'issues' => 7, 'projects' => 2 },
update_count_by_table: { 'projects' => 3 },
delete_count: 9,
update_count: 3
})
end
end
end
end
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