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test_eager_load.rb
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test_eager_load.rb
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# frozen_string_literal: true
require "test_helper"
require "fileutils"
class TestEagerLoad < LoaderTest
module Namespace; end
test "eager loads independent files (Object)" do
loaders = [loader, new_loader(setup: false)]
$tel0 = $tel1 = false
files = [
["lib0/app0.rb", "module App0; end"],
["lib0/app0/foo.rb", "class App0::Foo; $tel0 = true; end"],
["lib1/app1/foo.rb", "class App1::Foo; end"],
["lib1/app1/foo/bar/baz.rb", "class App1::Foo::Bar::Baz; $tel1 = true; end"]
]
with_files(files) do
loaders[0].push_dir("lib0")
loaders[0].setup
loaders[1].push_dir("lib1")
loaders[1].setup
Zeitwerk::Loader.eager_load_all
assert $tel0
assert $tel1
end
end
test "eager loads independent files (Namespace)" do
loaders = [loader, new_loader(setup: false)]
$tel0 = $tel1 = false
files = [
["lib0/app0.rb", "module #{Namespace}::App0; end"],
["lib0/app0/foo.rb", "class #{Namespace}::App0::Foo; $tel0 = true; end"],
["lib1/app1/foo.rb", "class App1::Foo; end"],
["lib1/app1/foo/bar/baz.rb", "class App1::Foo::Bar::Baz; $tel1 = true; end"]
]
with_files(files) do
loaders[0].push_dir("lib0", namespace: Namespace)
loaders[0].setup
loaders[1].push_dir("lib1")
loaders[1].setup
Zeitwerk::Loader.eager_load_all
assert $tel0
assert $tel1
end
end
test "eager loads dependent loaders" do
loaders = [loader, new_loader(setup: false)]
$tel0 = $tel1 = false
files = [
["lib0/app0.rb", <<-EOS],
module App0
App1
end
EOS
["lib0/app0/foo.rb", <<-EOS],
class App0::Foo
$tel0 = App1::Foo
end
EOS
["lib1/app1/foo.rb", <<-EOS],
class App1::Foo
App0
end
EOS
["lib1/app1/foo/bar/baz.rb", <<-EOS]
class App1::Foo::Bar::Baz
$tel1 = App0::Foo
end
EOS
]
with_files(files) do
loaders[0].push_dir("lib0")
loaders[0].setup
loaders[1].push_dir("lib1")
loaders[1].setup
Zeitwerk::Loader.eager_load_all
assert $tel0
assert $tel1
end
end
test "eager loads gems" do
on_teardown do
remove_const :MyGem
delete_loaded_feature "my_gem.rb"
delete_loaded_feature "my_gem/foo.rb"
delete_loaded_feature "my_gem/foo/bar.rb"
delete_loaded_feature "my_gem/foo/baz.rb"
end
$my_gem_foo_bar_eager_loaded = false
files = [
["my_gem.rb", <<-EOS],
$for_gem_test_loader = Zeitwerk::Loader.for_gem
$for_gem_test_loader.setup
class MyGem
Foo::Baz # autoloads fine
end
$for_gem_test_loader.eager_load
EOS
["my_gem/foo.rb", "class MyGem::Foo; end"],
["my_gem/foo/bar.rb", "class MyGem::Foo::Bar; end; $my_gem_foo_bar_eager_loaded = true"],
["my_gem/foo/baz.rb", "class MyGem::Foo::Baz; end"],
]
with_files(files) do
with_load_path(".") do
require "my_gem"
assert $my_gem_foo_bar_eager_loaded
end
end
end
[false, true].each do |enable_reloading|
test "we can opt-out of entire root directories, and still autoload (enable_autoloading #{enable_reloading})" do
on_teardown do
remove_const :Foo
delete_loaded_feature "foo.rb"
end
$test_eager_load_eager_loaded_p = false
files = [["foo.rb", "Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_files(files) do
loader = new_loader(dirs: ".", enable_reloading: enable_reloading)
loader.do_not_eager_load(".")
loader.eager_load
assert !$test_eager_load_eager_loaded_p
assert Foo
end
end
test "we can opt-out of sudirectories, and still autoload (enable_autoloading #{enable_reloading})" do
on_teardown do
remove_const :Foo
delete_loaded_feature "foo.rb"
remove_const :DbAdapters
delete_loaded_feature "db_adapters/mysql_adapter.rb"
end
$test_eager_load_eager_loaded_p = false
files = [
["db_adapters/mysql_adapter.rb", <<-EOS],
module DbAdapters::MysqlAdapter
end
$test_eager_load_eager_loaded_p = true
EOS
["foo.rb", "Foo = true"]
]
with_files(files) do
loader = new_loader(dirs: ".", enable_reloading: enable_reloading)
loader.do_not_eager_load("db_adapters")
loader.eager_load
assert Foo
assert !$test_eager_load_eager_loaded_p
assert DbAdapters::MysqlAdapter
end
end
test "we can opt-out of files, and still autoload (enable_autoloading #{enable_reloading})" do
on_teardown do
remove_const :Foo
delete_loaded_feature "foo.rb"
remove_const :Bar
delete_loaded_feature "bar.rb"
end
$test_eager_load_eager_loaded_p = false
files = [
["foo.rb", "Foo = true"],
["bar.rb", "Bar = true; $test_eager_load_eager_loaded_p = true"]
]
with_files(files) do
loader = new_loader(dirs: ".", enable_reloading: enable_reloading)
loader.do_not_eager_load("bar.rb")
loader.eager_load
assert Foo
assert !$test_eager_load_eager_loaded_p
assert Bar
end
end
test "opt-ed out root directories sharing a namespace don't prevent autoload (enable_autoloading #{enable_reloading})" do
on_teardown do
remove_const :Ns
delete_loaded_feature "ns/foo.rb"
delete_loaded_feature "ns/bar.rb"
end
$test_eager_load_eager_loaded_p = false
files = [
["lazylib/ns/foo.rb", "module Ns::Foo; end"],
["eagerlib/ns/bar.rb", "module Ns::Bar; $test_eager_load_eager_loaded_p = true; end"]
]
with_files(files) do
loader = new_loader(dirs: %w(lazylib eagerlib), enable_reloading: enable_reloading)
loader.do_not_eager_load('lazylib')
loader.eager_load
assert $test_eager_load_eager_loaded_p
end
end
test "opt-ed out subdirectories don't prevent autoloading shared namespaces (enable_autoloading #{enable_reloading})" do
on_teardown do
remove_const :Ns
delete_loaded_feature "ns/foo.rb"
delete_loaded_feature "ns/bar.rb"
end
$test_eager_load_eager_loaded_p = false
files = [
["lazylib/ns/foo.rb", "module Ns::Foo; end"],
["eagerlib/ns/bar.rb", "module Ns::Bar; $test_eager_load_eager_loaded_p = true; end"]
]
with_files(files) do
loader = new_loader(dirs: %w(lazylib eagerlib), enable_reloading: enable_reloading)
loader.do_not_eager_load('lazylib/namespace')
loader.eager_load
assert $test_eager_load_eager_loaded_p
end
end
end
test "eager loading skips repeated files" do
$test_eager_loaded_file = nil
files = [
["a/foo.rb", "Foo = 1; $test_eager_loaded_file = :a"],
["b/foo.rb", "Foo = 1; $test_eager_loaded_file = :b"]
]
with_files(files) do
la = new_loader(dirs: "a")
lb = new_loader(dirs: "b")
la.eager_load
lb.eager_load
assert_equal :a, $test_eager_loaded_file
end
end
test "eager loading skips files that would map to already loaded constants" do
on_teardown { remove_const :X }
$test_eager_loaded_file = false
files = [["x.rb", "X = 1; $test_eager_loaded_file = true"]]
::X = 1
with_setup(files) do
loader.eager_load
assert !$test_eager_loaded_file
end
end
test "eager loading works with symbolic links" do
files = [["real/x.rb", "X = true"]]
with_files(files) do
FileUtils.ln_s("real", "symlink")
loader.push_dir("symlink")
loader.setup
loader.eager_load
assert_nil Object.autoload?(:X)
end
end
test "force eager load for root directories" do
$test_eager_load_eager_loaded_p = false
files = [["foo.rb", "Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_setup(files) do
loader.do_not_eager_load(".")
loader.eager_load(force: true)
assert $test_eager_load_eager_loaded_p
end
end
test "force eager load for sudirectories" do
$test_eager_load_eager_loaded_p = false
files = [
["db_adapters/mysql_adapter.rb", <<-EOS],
module DbAdapters::MysqlAdapter
end
$test_eager_load_eager_loaded_p = true
EOS
]
with_setup(files) do
loader.do_not_eager_load("db_adapters")
loader.eager_load(force: true)
assert $test_eager_load_eager_loaded_p
assert DbAdapters::MysqlAdapter
end
end
test "force eager load for root files" do
$test_eager_load_eager_loaded_p = false
files = [["foo.rb", "Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_setup(files) do
loader.do_not_eager_load("foo.rb")
loader.eager_load(force: true)
assert $test_eager_load_eager_loaded_p
end
end
test "force eager load for namespaced files" do
$test_eager_load_eager_loaded_p = false
files = [["m/foo.rb", "M::Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_setup(files) do
loader.do_not_eager_load("m/foo.rb")
loader.eager_load(force: true)
assert $test_eager_load_eager_loaded_p
end
end
test "force eager load honours ignored root directories" do
$test_eager_load_eager_loaded_p = false
files = [["foo.rb", "Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_files(files) do
loader.ignore(".")
loader.setup
loader.eager_load(force: true)
assert !$test_eager_load_eager_loaded_p
end
end
test "force eager load honours ignored subdirectories" do
$test_eager_load_eager_loaded_p = false
files = [["m/foo.rb", "M::Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_files(files) do
loader.ignore("m")
loader.setup
loader.eager_load(force: true)
assert !$test_eager_load_eager_loaded_p
end
end
test "force eager load honours root files" do
$test_eager_load_eager_loaded_p = false
files = [["foo.rb", "Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_files(files) do
loader.ignore("foo.rb")
loader.setup
loader.eager_load(force: true)
assert !$test_eager_load_eager_loaded_p
end
end
test "force eager load honours namespaced files" do
$test_eager_load_eager_loaded_p = false
files = [["m/foo.rb", "M::Foo = true; $test_eager_load_eager_loaded_p = true"]]
with_files(files) do
loader.ignore("foo.rb")
loader.setup
loader.eager_load(force: true)
assert !$test_eager_load_eager_loaded_p
end
end
end