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|
# frozen_string_literal: true
require "test_prof/before_all"
module TestProf
module BeforeAll
# Add before_all hook to Minitest: wrap all examples into a transaction and
# store instance variables
module Minitest # :nodoc: all
class Executor
attr_reader :active, :block, :captured_ivars
alias active? active
def initialize(&block)
@block = block
@captured_ivars = []
end
def activate!(test_object)
return restore_ivars(test_object) if active?
@active = true
@examples_left = test_object.class.runnable_methods.size
BeforeAll.begin_transaction do
capture!(test_object)
end
end
def try_deactivate!
@examples_left -= 1
return unless @examples_left.zero?
@active = false
BeforeAll.rollback_transaction
end
def capture!(test_object)
before_ivars = test_object.instance_variables
test_object.instance_eval(&block)
(test_object.instance_variables - before_ivars).each do |ivar|
captured_ivars << [ivar, test_object.instance_variable_get(ivar)]
end
end
def restore_ivars(test_object)
captured_ivars.each do |(ivar, val)|
test_object.instance_variable_set(
ivar,
val
)
end
end
end
class << self
def included(base)
base.extend ClassMethods
end
end
module ClassMethods
attr_accessor :before_all_executor
def before_all(&block)
self.before_all_executor = Executor.new(&block)
prepend(Module.new do
def setup
self.class.before_all_executor.activate!(self)
super
end
def teardown
super
self.class.before_all_executor.try_deactivate!
end
end)
end
end
end
end
end
|
