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require_relative '../../spec_helper'
require_relative 'fixtures/module'
describe "Module#name" do
it "is nil for an anonymous module" do
Module.new.name.should be_nil
end
it "is not nil when assigned to a constant in an anonymous module" do
m = Module.new
m::N = Module.new
m::N.name.should.end_with? '::N'
end
it "is not nil for a nested module created with the module keyword" do
m = Module.new
module m::N; end
m::N.name.should =~ /\A#<Module:0x[0-9a-f]+>::N\z/
end
it "returns nil for a singleton class" do
Module.new.singleton_class.name.should be_nil
String.singleton_class.name.should be_nil
Object.new.singleton_class.name.should be_nil
end
it "changes when the module is reachable through a constant path" do
m = Module.new
module m::N; end
m::N.name.should =~ /\A#<Module:0x\h+>::N\z/
ModuleSpecs::Anonymous::WasAnnon = m::N
m::N.name.should == "ModuleSpecs::Anonymous::WasAnnon"
ensure
ModuleSpecs::Anonymous.send(:remove_const, :WasAnnon)
end
it "may be the repeated in different module objects" do
m = Module.new
n = Module.new
suppress_warning do
ModuleSpecs::Anonymous::SameName = m
ModuleSpecs::Anonymous::SameName = n
end
m.name.should == "ModuleSpecs::Anonymous::SameName"
n.name.should == "ModuleSpecs::Anonymous::SameName"
end
it "is set after it is removed from a constant" do
module ModuleSpecs
module ModuleToRemove
end
mod = ModuleToRemove
remove_const(:ModuleToRemove)
mod.name.should == "ModuleSpecs::ModuleToRemove"
end
end
it "is set after it is removed from a constant under an anonymous module" do
m = Module.new
module m::Child; end
child = m::Child
m.send(:remove_const, :Child)
child.name.should =~ /\A#<Module:0x\h+>::Child\z/
end
it "is set when opened with the module keyword" do
ModuleSpecs.name.should == "ModuleSpecs"
end
it "is set when a nested module is opened with the module keyword" do
ModuleSpecs::Anonymous.name.should == "ModuleSpecs::Anonymous"
end
it "is set when assigning to a constant (constant path matches outer module name)" do
m = Module.new
ModuleSpecs::Anonymous::A = m
m.name.should == "ModuleSpecs::Anonymous::A"
ensure
ModuleSpecs::Anonymous.send(:remove_const, :A)
end
it "is set when assigning to a constant (constant path does not match outer module name)" do
m = Module.new
ModuleSpecs::Anonymous::SameChild::A = m
m.name.should == "ModuleSpecs::Anonymous::Child::A"
ensure
ModuleSpecs::Anonymous::SameChild.send(:remove_const, :A)
end
it "is not modified when assigning to a new constant after it has been accessed" do
m = Module.new
ModuleSpecs::Anonymous::B = m
m.name.should == "ModuleSpecs::Anonymous::B"
ModuleSpecs::Anonymous::C = m
m.name.should == "ModuleSpecs::Anonymous::B"
ensure
ModuleSpecs::Anonymous.send(:remove_const, :B)
ModuleSpecs::Anonymous.send(:remove_const, :C)
end
it "is not modified when assigned to a different anonymous module" do
m = Module.new
module m::M; end
first_name = m::M.name.dup
module m::N; end
m::N::F = m::M
m::M.name.should == first_name
end
# http://bugs.ruby-lang.org/issues/6067
it "is set with a conditional assignment to a nested constant" do
eval("ModuleSpecs::Anonymous::F ||= Module.new")
ModuleSpecs::Anonymous::F.name.should == "ModuleSpecs::Anonymous::F"
end
it "is set with a conditional assignment to a constant" do
module ModuleSpecs::Anonymous
D ||= Module.new
end
ModuleSpecs::Anonymous::D.name.should == "ModuleSpecs::Anonymous::D"
end
# http://redmine.ruby-lang.org/issues/show/1833
it "preserves the encoding in which the class was defined" do
require fixture(__FILE__, "name")
ModuleSpecs::NameEncoding.new.name.encoding.should == Encoding::UTF_8
end
it "is set when the anonymous outer module name is set (module in one single constant)" do
m = Module.new
m::N = Module.new
ModuleSpecs::Anonymous::E = m
m::N.name.should == "ModuleSpecs::Anonymous::E::N"
ensure
ModuleSpecs::Anonymous.send(:remove_const, :E)
end
# https://bugs.ruby-lang.org/issues/19681
it "is set when the anonymous outer module name is set (module in several constants)" do
m = Module.new
m::N = Module.new
m::O = m::N
ModuleSpecs::Anonymous::StoredInMultiplePlaces = m
valid_names = [
"ModuleSpecs::Anonymous::StoredInMultiplePlaces::N",
"ModuleSpecs::Anonymous::StoredInMultiplePlaces::O"
]
valid_names.should include(m::N.name) # You get one of the two, but you don't know which one.
ensure
ModuleSpecs::Anonymous.send(:remove_const, :StoredInMultiplePlaces)
end
it "is set in #const_added callback when a module defined in the top-level scope" do
ruby_exe(<<~RUBY, args: "2>&1").chomp.should == "TEST1\nTEST2"
class Module
def const_added(name)
puts const_get(name).name
end
end
# module with name
module TEST1
end
# anonymous module
TEST2 = Module.new
RUBY
end
it "is set in #const_added callback for a nested module when an outer module defined in the top-level scope" do
ScratchPad.record []
ModuleSpecs::NameSpecs::NamedModule = Module.new do
def self.const_added(name)
ScratchPad << const_get(name).name
end
module self::A
def self.const_added(name)
ScratchPad << const_get(name).name
end
module self::B
end
end
end
ScratchPad.recorded.should.one?(/#<Module.+>::A$/)
ScratchPad.recorded.should.one?(/#<Module.+>::A::B$/)
ModuleSpecs::NameSpecs.send :remove_const, :NamedModule
end
it "returns a frozen String" do
ModuleSpecs.name.should.frozen?
end
it "always returns the same String for a given Module" do
s1 = ModuleSpecs.name
s2 = ModuleSpecs.name
s1.should equal(s2)
end
end
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