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# frozen_string_literal: true
require 'spec_helper'
require Rails.root.join('db', 'post_migrate', '20200128210353_cleanup_optimistic_locking_nulls')
RSpec.describe CleanupOptimisticLockingNulls do
let(:epics) { table(:epics) }
let(:merge_requests) { table(:merge_requests) }
let(:issues) { table(:issues) }
let(:tables) { [epics, merge_requests, issues] }
let(:namespaces) { table(:namespaces) }
let(:projects) { table(:projects) }
let(:users) { table(:users)}
before do
namespaces.create!(id: 123, name: 'gitlab1', path: 'gitlab1')
projects.create!(id: 123, name: 'gitlab1', path: 'gitlab1', namespace_id: 123)
users.create!(id: 123, username: 'author', projects_limit: 1000)
# Create necessary rows
epics.create!(iid: 123, group_id: 123, author_id: 123, title: 'a', title_html: 'a')
merge_requests.create!(iid: 123, target_project_id: 123, source_project_id: 123, target_branch: 'master', source_branch: 'hmm', title: 'a', title_html: 'a')
issues.create!(iid: 123, project_id: 123, title: 'a', title_html: 'a')
# Nullify `lock_version` column for all rows
# Needs to be done with a SQL fragment, otherwise Rails will coerce it to 0
tables.each do |table|
table.update_all('lock_version = NULL')
end
end
it 'correctly migrates nullified lock_version column', :sidekiq_inline do
tables.each do |table|
expect(table.where(lock_version: nil).count).to eq(1)
end
tables.each do |table|
expect(table.where(lock_version: 0).count).to eq(0)
end
migrate!
tables.each do |table|
expect(table.where(lock_version: nil).count).to eq(0)
end
tables.each do |table|
expect(table.where(lock_version: 0).count).to eq(1)
end
end
end
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