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require_relative '../../spec_helper'
require_relative '../../fixtures/constants'
require_relative 'fixtures/classes'
describe "Module.constants" do
it "returns an array of the names of all toplevel constants" do
count = Module.constants.size
module ConstantSpecsAdded
end
Module.constants.size.should == count + 1
Object.send(:remove_const, :ConstantSpecsAdded)
end
it "returns an array of Symbol names" do
# This in NOT an exhaustive list
Module.constants.should include(:Array, :Bignum, :Class, :Comparable, :Dir,
:Enumerable, :ENV, :Exception, :FalseClass,
:File, :Fixnum, :Float, :Hash, :Integer, :IO,
:Kernel, :Math, :Method, :Module, :NilClass,
:Numeric, :Object, :Range, :Regexp, :String,
:Symbol, :Thread, :Time, :TrueClass)
end
it "returns Module's constants when given a parameter" do
direct = Module.constants(false)
indirect = Module.constants(true)
module ConstantSpecsIncludedModule
MODULE_CONSTANTS_SPECS_INDIRECT = :foo
end
class Module
MODULE_CONSTANTS_SPECS_DIRECT = :bar
include ConstantSpecsIncludedModule
end
(Module.constants(false) - direct).should == [:MODULE_CONSTANTS_SPECS_DIRECT]
(Module.constants(true) - indirect).sort.should == [:MODULE_CONSTANTS_SPECS_DIRECT, :MODULE_CONSTANTS_SPECS_INDIRECT]
Module.send(:remove_const, :MODULE_CONSTANTS_SPECS_DIRECT)
ConstantSpecsIncludedModule.send(:remove_const, :MODULE_CONSTANTS_SPECS_INDIRECT)
end
end
describe "Module#constants" do
it "returns an array of Symbol names of all constants defined in the module and all included modules" do
ConstantSpecs::ContainerA.constants.sort.should == [
:CS_CONST10, :CS_CONST10_LINE, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA
]
end
it "returns all constants including inherited when passed true" do
ConstantSpecs::ContainerA.constants(true).sort.should == [
:CS_CONST10, :CS_CONST10_LINE, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA
]
end
it "returns all constants including inherited when passed some object" do
ConstantSpecs::ContainerA.constants(Object.new).sort.should == [
:CS_CONST10, :CS_CONST10_LINE, :CS_CONST23, :CS_CONST24, :CS_CONST5, :ChildA
]
end
it "doesn't returns inherited constants when passed false" do
ConstantSpecs::ContainerA.constants(false).sort.should == [
:CS_CONST10, :CS_CONST10_LINE, :CS_CONST23, :CS_CONST5, :ChildA
]
end
it "doesn't returns inherited constants when passed nil" do
ConstantSpecs::ContainerA.constants(nil).sort.should == [
:CS_CONST10, :CS_CONST10_LINE, :CS_CONST23, :CS_CONST5, :ChildA
]
end
it "returns only public constants" do
ModuleSpecs::PrivConstModule.constants.should == [:PUBLIC_CONSTANT]
end
end
describe "Module#constants" do
before :each do
ConstantSpecs::ModuleM::CS_CONST251 = :const251
end
after :each do
ConstantSpecs::ModuleM.send(:remove_const, :CS_CONST251)
end
it "includes names of constants defined after a module is included" do
ConstantSpecs::ContainerA.constants.should include(:CS_CONST251)
end
end
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