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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
require 'spec_helper'
describe "default values" do
before do
module Examples
class Reference
include Virtus::ValueObject
attribute :ref, String
end
class Page
include Virtus
attribute :title, String
attribute :slug, String, :default => lambda { |post, attribute| post.title.downcase.gsub(' ', '-') }, :lazy => true
attribute :view_count, Integer, :default => 0
attribute :published, Boolean, :default => false, :accessor => :private
attribute :editor_title, String, :default => :default_editor_title, :lazy => true
attribute :reference, String, :default => Reference.new
attribute :revisions, Array
attribute :index, Hash
attribute :authors, Set
def default_editor_title
published? ? title : "UNPUBLISHED: #{title}"
end
end
end
end
subject { Examples::Page.new }
specify 'without a default the value is nil' do
expect(subject.title).to be_nil
end
specify 'can be supplied with the :default option' do
expect(subject.view_count).to eq(0)
end
specify "you can pass a 'callable-object' to the :default option" do
subject.title = 'Example Blog Post'
expect(subject.slug).to eq('example-blog-post')
end
specify 'you can set defaults for private attributes' do
subject.title = 'Top Secret'
expect(subject.editor_title).to eq('UNPUBLISHED: Top Secret')
end
specify 'you can reset attribute to its default' do
subject.view_count = 10
expect do
subject.reset_attribute(:view_count)
end.to change { subject.view_count }.to(0)
end
context 'a ValueObject' do
it 'does not duplicate the ValueObject' do
page1 = Examples::Page.new
page2 = Examples::Page.new
expect(page1.reference).to equal(page2.reference)
end
end
context 'an Array' do
specify 'without a default the value is an empty Array' do
expect(subject.revisions).to eql([])
end
end
context 'a Hash' do
specify 'without a default the value is an empty Hash' do
expect(subject.index).to eql({})
end
end
context 'a Set' do
specify 'without a default the value is an empty Set' do
expect(subject.authors).to eql(Set.new)
end
end
end
|
