File: ancestors_spec.rb

package info (click to toggle)
ruby3.3 3.3.8-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 153,620 kB
  • sloc: ruby: 1,244,308; ansic: 836,474; yacc: 28,074; pascal: 6,748; sh: 3,913; python: 1,719; cpp: 1,158; makefile: 742; asm: 712; javascript: 394; lisp: 97; perl: 62; awk: 36; sed: 23; xml: 4
file content (70 lines) | stat: -rw-r--r-- 2,613 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
require_relative '../../spec_helper'
require_relative 'fixtures/classes'

describe "Module#ancestors" do
  it "returns a list of modules included in self (including self)" do
    BasicObject.ancestors.should == [BasicObject]
    ModuleSpecs.ancestors.should == [ModuleSpecs]
    ModuleSpecs::Basic.ancestors.should == [ModuleSpecs::Basic]
    ModuleSpecs::Super.ancestors.should == [ModuleSpecs::Super, ModuleSpecs::Basic]
    ModuleSpecs.without_test_modules(ModuleSpecs::Parent.ancestors).should ==
      [ModuleSpecs::Parent, Object, Kernel, BasicObject]
    ModuleSpecs.without_test_modules(ModuleSpecs::Child.ancestors).should ==
      [ModuleSpecs::Child, ModuleSpecs::Super, ModuleSpecs::Basic, ModuleSpecs::Parent, Object, Kernel, BasicObject]
  end

  it "returns only modules and classes" do
    class << ModuleSpecs::Child; self; end.ancestors.should include(ModuleSpecs::Internal, Class, Module, Object, Kernel)
  end

  it "has 1 entry per module or class" do
    ModuleSpecs::Parent.ancestors.should == ModuleSpecs::Parent.ancestors.uniq
  end

  describe "when called on a singleton class" do
    it "includes the singleton classes of ancestors" do
      parent  = Class.new
      child   = Class.new(parent)
      schild  = child.singleton_class

      schild.ancestors.should include(schild,
                                      parent.singleton_class,
                                      Object.singleton_class,
                                      BasicObject.singleton_class,
                                      Class,
                                      Module,
                                      Object,
                                      Kernel,
                                      BasicObject)

    end

    describe 'for a standalone module' do
      it 'does not include Class' do
        s_mod = ModuleSpecs.singleton_class
        s_mod.ancestors.should_not include(Class)
      end

      it 'does not include other singleton classes' do
        s_standalone_mod = ModuleSpecs.singleton_class
        s_module = Module.singleton_class
        s_object = Object.singleton_class
        s_basic_object = BasicObject.singleton_class

        s_standalone_mod.ancestors.should_not include(s_module, s_object, s_basic_object)
      end

      it 'includes its own singleton class' do
        s_mod = ModuleSpecs.singleton_class

        s_mod.ancestors.should include(s_mod)
      end

      it 'includes standard chain' do
        s_mod = ModuleSpecs.singleton_class

        s_mod.ancestors.should include(Module, Object, Kernel, BasicObject)
      end
    end
  end
end