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Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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462
spec/ruby/core/module/autoload_spec.rb
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462
spec/ruby/core/module/autoload_spec.rb
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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require 'thread'
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describe "Module#autoload?" do
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it "returns the name of the file that will be autoloaded" do
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ModuleSpecs::Autoload.autoload :Autoload, "autoload.rb"
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ModuleSpecs::Autoload.autoload?(:Autoload).should == "autoload.rb"
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end
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it "returns nil if no file has been registered for a constant" do
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ModuleSpecs::Autoload.autoload?(:Manualload).should be_nil
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end
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end
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describe "Module#autoload" do
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before :all do
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@non_existent = fixture __FILE__, "no_autoload.rb"
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end
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before :each do
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@loaded_features = $".dup
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@frozen_module = Module.new.freeze
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ScratchPad.clear
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end
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after :each do
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$".replace @loaded_features
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end
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it "registers a file to load the first time the named constant is accessed" do
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ModuleSpecs::Autoload.autoload :A, @non_existent
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ModuleSpecs::Autoload.autoload?(:A).should == @non_existent
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end
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it "sets the autoload constant in the constants table" do
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ModuleSpecs::Autoload.autoload :B, @non_existent
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ModuleSpecs::Autoload.should have_constant(:B)
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end
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it "loads the registered constant when it is accessed" do
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ModuleSpecs::Autoload.should_not have_constant(:X)
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ModuleSpecs::Autoload.autoload :X, fixture(__FILE__, "autoload_x.rb")
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ModuleSpecs::Autoload::X.should == :x
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ModuleSpecs::Autoload.send(:remove_const, :X)
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end
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it "loads the registered constant into a dynamically created class" do
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cls = Class.new { autoload :C, fixture(__FILE__, "autoload_c.rb") }
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ModuleSpecs::Autoload::DynClass = cls
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ScratchPad.recorded.should be_nil
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ModuleSpecs::Autoload::DynClass::C.new.loaded.should == :dynclass_c
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ScratchPad.recorded.should == :loaded
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end
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it "loads the registered constant into a dynamically created module" do
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mod = Module.new { autoload :D, fixture(__FILE__, "autoload_d.rb") }
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ModuleSpecs::Autoload::DynModule = mod
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ScratchPad.recorded.should be_nil
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ModuleSpecs::Autoload::DynModule::D.new.loaded.should == :dynmodule_d
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ScratchPad.recorded.should == :loaded
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end
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it "loads the registered constant when it is opened as a class" do
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ModuleSpecs::Autoload.autoload :E, fixture(__FILE__, "autoload_e.rb")
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class ModuleSpecs::Autoload::E
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end
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ModuleSpecs::Autoload::E.new.loaded.should == :autoload_e
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end
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it "loads the registered constant when it is opened as a module" do
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ModuleSpecs::Autoload.autoload :F, fixture(__FILE__, "autoload_f.rb")
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module ModuleSpecs::Autoload::F
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end
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ModuleSpecs::Autoload::F.loaded.should == :autoload_f
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end
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it "loads the registered constant when it is inherited from" do
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ModuleSpecs::Autoload.autoload :G, fixture(__FILE__, "autoload_g.rb")
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class ModuleSpecs::Autoload::Gsub < ModuleSpecs::Autoload::G
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end
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ModuleSpecs::Autoload::Gsub.new.loaded.should == :autoload_g
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end
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it "loads the registered constant when it is included" do
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ModuleSpecs::Autoload.autoload :H, fixture(__FILE__, "autoload_h.rb")
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class ModuleSpecs::Autoload::HClass
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include ModuleSpecs::Autoload::H
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end
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ModuleSpecs::Autoload::HClass.new.loaded.should == :autoload_h
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end
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it "does not load the file when the constant is already set" do
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ModuleSpecs::Autoload.autoload :I, fixture(__FILE__, "autoload_i.rb")
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ModuleSpecs::Autoload.const_set :I, 3
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ModuleSpecs::Autoload::I.should == 3
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ScratchPad.recorded.should be_nil
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end
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it "loads a file with .rb extension when passed the name without the extension" do
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ModuleSpecs::Autoload.autoload :J, fixture(__FILE__, "autoload_j")
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ModuleSpecs::Autoload::J.should == :autoload_j
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end
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it "does not load the file if the file is manually required" do
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filename = fixture(__FILE__, "autoload_k.rb")
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ModuleSpecs::Autoload.autoload :KHash, filename
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require filename
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ScratchPad.recorded.should == :loaded
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ScratchPad.clear
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ModuleSpecs::Autoload::KHash.should be_kind_of(Class)
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ModuleSpecs::Autoload::KHash::K.should == :autoload_k
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ScratchPad.recorded.should be_nil
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end
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it "ignores the autoload request if the file is already loaded" do
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filename = fixture(__FILE__, "autoload_s.rb")
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require filename
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ScratchPad.recorded.should == :loaded
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ScratchPad.clear
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ModuleSpecs::Autoload.autoload :S, filename
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ModuleSpecs::Autoload.autoload?(:S).should be_nil
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ModuleSpecs::Autoload.send(:remove_const, :S)
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end
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it "retains the autoload even if the request to require fails" do
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filename = fixture(__FILE__, "a_path_that_should_not_exist.rb")
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ModuleSpecs::Autoload.autoload :NotThere, filename
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ModuleSpecs::Autoload.autoload?(:NotThere).should == filename
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lambda {
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require filename
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}.should raise_error(LoadError)
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ModuleSpecs::Autoload.autoload?(:NotThere).should == filename
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end
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it "allows multiple autoload constants for a single file" do
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filename = fixture(__FILE__, "autoload_lm.rb")
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ModuleSpecs::Autoload.autoload :L, filename
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ModuleSpecs::Autoload.autoload :M, filename
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ModuleSpecs::Autoload::L.should == :autoload_l
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ModuleSpecs::Autoload::M.should == :autoload_m
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end
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it "runs for an exception condition class and doesn't trample the exception" do
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filename = fixture(__FILE__, "autoload_ex1.rb")
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ModuleSpecs::Autoload.autoload :EX1, filename
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ModuleSpecs::Autoload.use_ex1.should == :good
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end
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it "does not load the file when referring to the constant in defined?" do
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module ModuleSpecs::Autoload::Q
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autoload :R, fixture(__FILE__, "autoload.rb")
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defined?(R).should == "constant"
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end
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ModuleSpecs::Autoload::Q.should have_constant(:R)
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end
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it "does not remove the constant from the constant table if load fails" do
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ModuleSpecs::Autoload.autoload :Fail, @non_existent
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ModuleSpecs::Autoload.should have_constant(:Fail)
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lambda { ModuleSpecs::Autoload::Fail }.should raise_error(LoadError)
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ModuleSpecs::Autoload.should have_constant(:Fail)
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end
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it "does not remove the constant from the constant table if the loaded files does not define it" do
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ModuleSpecs::Autoload.autoload :O, fixture(__FILE__, "autoload_o.rb")
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ModuleSpecs::Autoload.should have_constant(:O)
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lambda { ModuleSpecs::Autoload::O }.should raise_error(NameError)
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ModuleSpecs::Autoload.should have_constant(:O)
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end
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it "returns 'constant' on referring the constant with defined?()" do
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module ModuleSpecs::Autoload::Q
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autoload :R, fixture(__FILE__, "autoload.rb")
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defined?(R).should == 'constant'
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end
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ModuleSpecs::Autoload::Q.should have_constant(:R)
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end
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it "does not load the file when removing an autoload constant" do
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module ModuleSpecs::Autoload::Q
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autoload :R, fixture(__FILE__, "autoload.rb")
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remove_const :R
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end
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ModuleSpecs::Autoload::Q.should_not have_constant(:R)
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end
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it "does not load the file when accessing the constants table of the module" do
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ModuleSpecs::Autoload.autoload :P, @non_existent
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ModuleSpecs::Autoload.const_defined?(:P).should be_true
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end
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it "loads the file when opening a module that is the autoloaded constant" do
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module ModuleSpecs::Autoload::U
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autoload :V, fixture(__FILE__, "autoload_v.rb")
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class V
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X = get_value
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end
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end
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ModuleSpecs::Autoload::U::V::X.should == :autoload_uvx
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end
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it "loads the file that defines subclass XX::YY < YY and YY is a top level constant" do
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module ModuleSpecs::Autoload::XX
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autoload :YY, fixture(__FILE__, "autoload_subclass.rb")
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end
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ModuleSpecs::Autoload::XX::YY.superclass.should == YY
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end
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it "looks up the constant in the scope where it is referred" do
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module ModuleSpecs
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module Autoload
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autoload :QQ, fixture(__FILE__, "autoload_scope.rb")
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class PP
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QQ.new.should be_kind_of(ModuleSpecs::Autoload::PP::QQ)
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end
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end
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end
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end
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it "looks up the constant when in a meta class scope" do
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module ModuleSpecs
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module Autoload
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autoload :R, fixture(__FILE__, "autoload_r.rb")
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class << self
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def r
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R.new
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end
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end
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end
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end
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ModuleSpecs::Autoload.r.should be_kind_of(ModuleSpecs::Autoload::R)
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end
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# [ruby-core:19127] [ruby-core:29941]
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it "does NOT raise a NameError when the autoload file did not define the constant and a module is opened with the same name" do
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module ModuleSpecs::Autoload
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class W
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autoload :Y, fixture(__FILE__, "autoload_w.rb")
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class Y
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end
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end
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end
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ModuleSpecs::Autoload::W::Y.should be_kind_of(Class)
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ScratchPad.recorded.should == :loaded
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ModuleSpecs::Autoload::W.send(:remove_const, :Y)
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end
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it "calls #to_path on non-string filenames" do
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p = mock('path')
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p.should_receive(:to_path).and_return @non_existent
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ModuleSpecs.autoload :A, p
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end
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it "raises an ArgumentError when an empty filename is given" do
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lambda { ModuleSpecs.autoload :A, "" }.should raise_error(ArgumentError)
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end
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it "raises a NameError when the constant name starts with a lower case letter" do
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lambda { ModuleSpecs.autoload "a", @non_existent }.should raise_error(NameError)
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end
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it "raises a NameError when the constant name starts with a number" do
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lambda { ModuleSpecs.autoload "1two", @non_existent }.should raise_error(NameError)
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end
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it "raises a NameError when the constant name has a space in it" do
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lambda { ModuleSpecs.autoload "a name", @non_existent }.should raise_error(NameError)
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end
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it "shares the autoload request across dup'ed copies of modules" do
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require fixture(__FILE__, "autoload_s.rb")
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filename = fixture(__FILE__, "autoload_t.rb")
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mod1 = Module.new { autoload :T, filename }
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lambda {
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ModuleSpecs::Autoload::S = mod1
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}.should complain(/already initialized constant/)
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mod2 = mod1.dup
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mod1.autoload?(:T).should == filename
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mod2.autoload?(:T).should == filename
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mod1::T.should == :autoload_t
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lambda { mod2::T }.should raise_error(NameError)
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end
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it "raises a TypeError if opening a class with a different superclass than the class defined in the autoload file" do
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ModuleSpecs::Autoload.autoload :Z, fixture(__FILE__, "autoload_z.rb")
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class ModuleSpecs::Autoload::ZZ
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end
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lambda do
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class ModuleSpecs::Autoload::Z < ModuleSpecs::Autoload::ZZ
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end
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end.should raise_error(TypeError)
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end
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it "raises a TypeError if not passed a String or object respodning to #to_path for the filename" do
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name = mock("autoload_name.rb")
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lambda { ModuleSpecs::Autoload.autoload :Str, name }.should raise_error(TypeError)
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end
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it "calls #to_path on non-String filename arguments" do
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name = mock("autoload_name.rb")
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name.should_receive(:to_path).and_return("autoload_name.rb")
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lambda { ModuleSpecs::Autoload.autoload :Str, name }.should_not raise_error
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end
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describe "on a frozen module" do
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it "raises a RuntimeError before setting the name" do
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lambda { @frozen_module.autoload :Foo, @non_existent }.should raise_error(RuntimeError)
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@frozen_module.should_not have_constant(:Foo)
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end
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end
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describe "(concurrently)" do
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it "blocks a second thread while a first is doing the autoload" do
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ModuleSpecs::Autoload.autoload :Concur, fixture(__FILE__, "autoload_concur.rb")
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start = false
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ScratchPad.record []
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t1_val = nil
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t2_val = nil
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fin = false
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t1 = Thread.new do
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Thread.pass until start
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t1_val = ModuleSpecs::Autoload::Concur
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ScratchPad.recorded << :t1_post
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fin = true
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end
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t2_exc = nil
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t2 = Thread.new do
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Thread.pass until t1 and t1[:in_autoload_rb]
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begin
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t2_val = ModuleSpecs::Autoload::Concur
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rescue Exception => e
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t2_exc = e
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else
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Thread.pass until fin
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ScratchPad.recorded << :t2_post
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end
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end
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start = true
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t1.join
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t2.join
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ScratchPad.recorded.should == [:con_pre, :con_post, :t1_post, :t2_post]
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t1_val.should == 1
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t2_val.should == t1_val
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t2_exc.should be_nil
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ModuleSpecs::Autoload.send(:remove_const, :Concur)
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end
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end
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describe "when changing $LOAD_PATH" do
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before do
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$LOAD_PATH.unshift(File.expand_path('../fixtures/path1', __FILE__))
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end
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after do
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$LOAD_PATH.shift
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$LOAD_PATH.shift
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end
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it "does not reload a file due to a different load path" do
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ModuleSpecs::Autoload.autoload :LoadPath, "load_path"
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ModuleSpecs::Autoload::LoadPath.loaded.should == :autoload_load_path
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end
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end
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describe "(concurrently)" do
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ruby_bug "#10892", ""..."2.3" do
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it "blocks others threads while doing an autoload" do
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file_path = fixture(__FILE__, "repeated_concurrent_autoload.rb")
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autoload_path = file_path.sub(/\.rb\Z/, '')
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mod_count = 30
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thread_count = 16
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mod_names = []
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mod_count.times do |i|
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mod_name = :"Mod#{i}"
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Object.autoload mod_name, autoload_path
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mod_names << mod_name
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end
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barrier = ModuleSpecs::CyclicBarrier.new thread_count
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ScratchPad.record ModuleSpecs::ThreadSafeCounter.new
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threads = (1..thread_count).map do
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Thread.new do
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mod_names.each do |mod_name|
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break false unless barrier.enabled?
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was_last_one_in = barrier.await # wait for all threads to finish the iteration
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# clean up so we can autoload the same file again
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$LOADED_FEATURES.delete(file_path) if was_last_one_in && $LOADED_FEATURES.include?(file_path)
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barrier.await # get ready for race
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begin
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Object.const_get(mod_name).foo
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rescue NoMethodError
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barrier.disable!
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break false
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end
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end
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end
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end
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# check that no thread got a NoMethodError because of partially loaded module
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threads.all? {|t| t.value}.should be_true
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# check that the autoloaded file was evaled exactly once
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ScratchPad.recorded.get.should == mod_count
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mod_names.each do |mod_name|
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Object.send(:remove_const, mod_name)
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end
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end
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end
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||||
end
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it "loads the registered constant even if the constant was already loaded by another thread" do
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Thread.new {
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ModuleSpecs::Autoload::FromThread::D.foo
|
||||
}.value.should == :foo
|
||||
end
|
||||
end
|
||||
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Reference in a new issue