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# frozen_string_literal: true
require "abstract_unit"
require "active_support/log_subscriber/test_helper"
require "action_view/log_subscriber"
require "controller/fake_models"
class AVLogSubscriberTest < ActiveSupport::TestCase
include ActiveSupport::LogSubscriber::TestHelper
def setup
super
view_paths = ActionController::Base.view_paths
lookup_context = ActionView::LookupContext.new(view_paths, {}, ["test"])
renderer = ActionView::Renderer.new(lookup_context)
@view = ActionView::Base.new(renderer, {})
ActionView::LogSubscriber.attach_to :action_view
unless Rails.respond_to?(:root)
@defined_root = true
def Rails.root; :defined_root; end # Minitest `stub` expects the method to be defined.
end
end
def teardown
super
ActiveSupport::LogSubscriber.log_subscribers.clear
# We need to undef `root`, RenderTestCases don't want this to be defined
Rails.instance_eval { undef :root } if defined?(@defined_root)
end
def set_logger(logger)
ActionView::Base.logger = logger
end
def set_cache_controller
controller = ActionController::Base.new
controller.perform_caching = true
controller.cache_store = ActiveSupport::Cache::MemoryStore.new
@view.controller = controller
end
def set_view_cache_dependencies
def @view.view_cache_dependencies; []; end
def @view.combined_fragment_cache_key(*); "ahoy `controller` dependency"; end
end
def test_render_file_template
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render(file: "test/hello_world")
wait
assert_equal 2, @logger.logged(:info).size
assert_match(/Rendering test\/hello_world\.erb/, @logger.logged(:info).first)
assert_match(/Rendered test\/hello_world\.erb/, @logger.logged(:info).last)
end
end
def test_render_text_template
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render(plain: "TEXT")
wait
assert_equal 2, @logger.logged(:info).size
assert_match(/Rendering text template/, @logger.logged(:info).first)
assert_match(/Rendered text template/, @logger.logged(:info).last)
end
end
def test_render_inline_template
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render(inline: "<%= 'TEXT' %>")
wait
assert_equal 2, @logger.logged(:info).size
assert_match(/Rendering inline template/, @logger.logged(:info).first)
assert_match(/Rendered inline template/, @logger.logged(:info).last)
end
end
def test_render_partial_with_implicit_path
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render(Customer.new("david"), greeting: "hi")
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered customers\/_customer\.html\.erb/, @logger.logged(:info).last)
end
end
def test_render_partial_with_cache_missed
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
set_cache_controller
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
end
end
def test_render_partial_with_cache_hitted
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
set_cache_controller
# Second render should hit cache.
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
wait
assert_equal 2, @logger.logged(:info).size
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
end
end
def test_render_uncached_outer_partial_with_inner_cached_partial_wont_mix_cache_hits_or_misses
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
set_cache_controller
@view.render(partial: "test/nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
wait
*, cached_inner, uncached_outer = @logger.logged(:info)
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, cached_inner)
assert_match(/Rendered test\/_nested_cached_customer\.erb \(Duration: .*?ms \| Allocations: .*?\)$/, uncached_outer)
# Second render hits the cache for the _cached_customer partial. Outer template's log shouldn't be affected.
@view.render(partial: "test/nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
wait
*, cached_inner, uncached_outer = @logger.logged(:info)
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, cached_inner)
assert_match(/Rendered test\/_nested_cached_customer\.erb \(Duration: .*?ms \| Allocations: .*?\)$/, uncached_outer)
end
end
def test_render_cached_outer_partial_with_cached_inner_partial
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
set_cache_controller
@view.render(partial: "test/cached_nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
wait
*, cached_inner, cached_outer = @logger.logged(:info)
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, cached_inner)
assert_match(/Rendered test\/_cached_nested_cached_customer\.erb (.*) \[cache miss\]/, cached_outer)
# One render: inner partial skipped, because the outer has been cached.
assert_difference -> { @logger.logged(:info).size }, +1 do
@view.render(partial: "test/cached_nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
wait
end
assert_match(/Rendered test\/_cached_nested_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
end
end
def test_render_partial_with_cache_hitted_and_missed
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
set_cache_controller
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
wait
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
wait
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
@view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("Stan") })
wait
assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
end
end
def test_render_collection_template
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render(partial: "test/customer", collection: [ Customer.new("david"), Customer.new("mary") ])
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered collection of test\/_customer.erb \[2 times\]/, @logger.logged(:info).last)
end
end
def test_render_collection_with_implicit_path
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render([ Customer.new("david"), Customer.new("mary") ], greeting: "hi")
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered collection of customers\/_customer\.html\.erb \[2 times\]/, @logger.logged(:info).last)
end
end
def test_render_collection_template_without_path
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
@view.render([ GoodCustomer.new("david"), Customer.new("mary") ], greeting: "hi")
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered collection of templates/, @logger.logged(:info).last)
end
end
def test_render_collection_with_cached_set
Rails.stub(:root, File.expand_path(FIXTURE_LOAD_PATH)) do
set_view_cache_dependencies
@view.render(partial: "customers/customer", collection: [ Customer.new("david"), Customer.new("mary") ], cached: true,
locals: { greeting: "hi" })
wait
assert_equal 1, @logger.logged(:info).size
assert_match(/Rendered collection of customers\/_customer\.html\.erb \[0 \/ 2 cache hits\]/, @logger.logged(:info).last)
end
end
end
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