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# frozen_string_literal: true
module Database
module MigrationTestingHelpers
def define_background_migration(name)
klass = Class.new do
# Can't simply def perform here as we won't have access to the block,
# similarly can't define_method(:perform, &block) here as it would change the block receiver
define_method(:perform) { |*args| yield(*args) }
end
stub_const("Gitlab::BackgroundMigration::#{name}", klass)
klass
end
def expect_migration_call_counts(migrations_to_calls)
migrations_to_calls.each do |migration, calls|
expect_next_instances_of(migration, calls) do |m|
expect(m).to receive(:perform).and_call_original
end
end
end
def expect_recorded_migration_runs(migrations_to_runs)
migrations_to_runs.each do |migration, runs|
path = File.join(result_dir, migration.name.demodulize)
if runs.zero?
expect(Pathname(path)).not_to be_exist
else
num_subdirs = Pathname(path).children.count(&:directory?)
expect(num_subdirs).to eq(runs)
end
end
end
def expect_migration_runs(migrations_to_run_counts)
expect_migration_call_counts(migrations_to_run_counts)
yield
expect_recorded_migration_runs(migrations_to_run_counts)
end
end
end
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