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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Module#const_added" do
ruby_version_is "3.2" do
it "is a private instance method" do
Module.should have_private_instance_method(:const_added)
end
it "returns nil in the default implementation" do
Module.new do
const_added(:TEST).should == nil
end
end
it "is called when a new constant is assigned on self" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << name
end
end
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
TEST = 1
RUBY
ScratchPad.recorded.should == [:TEST]
end
it "is called when a new constant is assigned on self through const_set" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << name
end
end
mod.const_set(:TEST, 1)
ScratchPad.recorded.should == [:TEST]
end
it "is called when a new module is defined under self" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << name
end
end
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
module SubModule
end
module SubModule
end
RUBY
ScratchPad.recorded.should == [:SubModule]
end
it "is called when a new class is defined under self" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << name
end
end
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
class SubClass
end
class SubClass
end
RUBY
ScratchPad.recorded.should == [:SubClass]
end
it "is called when an autoload is defined" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << name
end
end
mod.autoload :Autoload, "foo"
ScratchPad.recorded.should == [:Autoload]
end
it "is called with a precise caller location with the line of definition" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
location = caller_locations(1, 1)[0]
ScratchPad << location.lineno
end
end
line = __LINE__
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
TEST = 1
module SubModule
end
class SubClass
end
RUBY
mod.const_set(:CONST_SET, 1)
ScratchPad.recorded.should == [line + 2, line + 4, line + 7, line + 11]
end
it "is called when the constant is already assigned a value" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad.record const_get(name)
end
end
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
TEST = 123
RUBY
ScratchPad.recorded.should == 123
end
it "records re-definition of existing constants" do
ScratchPad.record []
mod = Module.new do
def self.const_added(name)
ScratchPad << const_get(name)
end
end
-> {
mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1)
TEST = 123
TEST = 456
RUBY
}.should complain(/warning: already initialized constant .+::TEST/)
ScratchPad.recorded.should == [123, 456]
end
end
end
|
