Files
liquid/test/unit/resource_limits_unit_test.rb
T
Ian Ker-SeymerandGitHub 59d8d0d22d Add cumulative resource score tracking across partial renders (#2058)
* feat: add cumulative resource score tracking across partial renders

Add cumulative_render_score and cumulative_assign_score counters to
ResourceLimits that accumulate across reset() calls, with optional
cumulative_render_score_limit and cumulative_assign_score_limit to
cap total work across all partial renders.

Also add a reached? check in BlockBody's render loop so that once a
cumulative limit triggers, the parent template stops processing
further nodes.

Bump version to 5.12.0.

* refactor: move cumulative limit enforcement into reset()

Instead of checking reached? in BlockBody's render loop, enforce
cumulative limits in reset() itself. Since reset() is called before
the begin/rescue MemoryError block in Template#render, the raise
propagates to the parent naturally — no changes to BlockBody needed.
2026-03-18 11:54:46 -04:00

92 lines
2.6 KiB
Ruby

# frozen_string_literal: true
require 'test_helper'
class ResourceLimitsUnitTest < Minitest::Test
def test_cumulative_scores_initialize_to_zero
limits = Liquid::ResourceLimits.new({})
assert_equal(0, limits.cumulative_render_score)
assert_equal(0, limits.cumulative_assign_score)
end
def test_cumulative_limits_default_to_nil
limits = Liquid::ResourceLimits.new({})
assert_nil(limits.cumulative_render_score_limit)
assert_nil(limits.cumulative_assign_score_limit)
end
def test_cumulative_limits_configurable_via_hash
limits = Liquid::ResourceLimits.new(
cumulative_render_score_limit: 500,
cumulative_assign_score_limit: 300,
)
assert_equal(500, limits.cumulative_render_score_limit)
assert_equal(300, limits.cumulative_assign_score_limit)
end
def test_cumulative_limits_configurable_via_accessor
limits = Liquid::ResourceLimits.new({})
limits.cumulative_render_score_limit = 500
assert_equal(500, limits.cumulative_render_score_limit)
end
def test_cumulative_scores_survive_reset
limits = Liquid::ResourceLimits.new({})
limits.increment_render_score(10)
limits.increment_assign_score(5)
limits.reset
assert_equal(0, limits.render_score)
assert_equal(0, limits.assign_score)
assert_equal(10, limits.cumulative_render_score)
assert_equal(5, limits.cumulative_assign_score)
end
def test_cumulative_scores_accumulate_across_resets
limits = Liquid::ResourceLimits.new({})
limits.increment_render_score(10)
limits.reset
limits.increment_render_score(20)
limits.reset
limits.increment_render_score(30)
assert_equal(30, limits.render_score)
assert_equal(60, limits.cumulative_render_score)
end
def test_cumulative_render_score_limit_raises
limits = Liquid::ResourceLimits.new(cumulative_render_score_limit: 25)
limits.increment_render_score(10)
limits.reset
limits.increment_render_score(10)
limits.reset
assert_raises(Liquid::MemoryError) do
limits.increment_render_score(10)
end
assert(limits.reached?)
end
def test_cumulative_assign_score_limit_raises
limits = Liquid::ResourceLimits.new(cumulative_assign_score_limit: 15)
limits.increment_assign_score(8)
limits.reset
assert_raises(Liquid::MemoryError) do
limits.increment_assign_score(8)
end
assert(limits.reached?)
end
def test_per_template_limits_still_work_with_cumulative
limits = Liquid::ResourceLimits.new(
render_score_limit: 50,
cumulative_render_score_limit: 1000,
)
assert_raises(Liquid::MemoryError) do
limits.increment_render_score(51)
end
end
end