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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
require 'spec_helper'
describe CacheMarkdownField do
CacheMarkdownField::CACHING_CLASSES << "ThingWithMarkdownFields"
# The minimum necessary ActiveModel to test this concern
class ThingWithMarkdownFields
include ActiveModel::Model
include ActiveModel::Dirty
include ActiveModel::Serialization
class_attribute :attribute_names
self.attribute_names = []
def attributes
attribute_names.each_with_object({}) do |name, hsh|
hsh[name.to_s] = send(name)
end
end
extend ActiveModel::Callbacks
define_model_callbacks :save
include CacheMarkdownField
cache_markdown_field :foo
cache_markdown_field :baz, pipeline: :single_line
def self.add_attr(attr_name)
self.attribute_names += [attr_name]
define_attribute_methods(attr_name)
attr_reader(attr_name)
define_method("#{attr_name}=") do |val|
send("#{attr_name}_will_change!") unless val == send(attr_name)
instance_variable_set("@#{attr_name}", val)
end
end
[:foo, :foo_html, :bar, :baz, :baz_html].each do |attr_name|
add_attr(attr_name)
end
def initialize(*)
super
# Pretend new is load
clear_changes_information
end
def save
run_callbacks :save do
changes_applied
end
end
end
CacheMarkdownField::CACHING_CLASSES.delete("ThingWithMarkdownFields")
def thing_subclass(new_attr)
Class.new(ThingWithMarkdownFields) { add_attr(new_attr) }
end
let(:markdown) { "`Foo`" }
let(:html) { "<p><code>Foo</code></p>" }
let(:updated_markdown) { "`Bar`" }
let(:updated_html) { "<p dir=\"auto\"><code>Bar</code></p>" }
subject { ThingWithMarkdownFields.new(foo: markdown, foo_html: html) }
describe ".attributes" do
it "excludes cache attributes" do
expect(thing_subclass(:qux).new.attributes.keys.sort).to eq(%w[bar baz foo qux])
end
end
describe ".cache_markdown_field" do
it "refuses to allow untracked classes" do
expect { thing_subclass(:qux).__send__(:cache_markdown_field, :qux) }.to raise_error(RuntimeError)
end
end
context "an unchanged markdown field" do
before do
subject.foo = subject.foo
subject.save
end
it { expect(subject.foo).to eq(markdown) }
it { expect(subject.foo_html).to eq(html) }
it { expect(subject.foo_html_changed?).not_to be_truthy }
end
context "a changed markdown field" do
before do
subject.foo = updated_markdown
subject.save
end
it { expect(subject.foo_html).to eq(updated_html) }
end
context "a non-markdown field changed" do
before do
subject.bar = "OK"
subject.save
end
it { expect(subject.bar).to eq("OK") }
it { expect(subject.foo).to eq(markdown) }
it { expect(subject.foo_html).to eq(html) }
end
describe '#banzai_render_context' do
it "sets project to nil if the object lacks a project" do
context = subject.banzai_render_context(:foo)
expect(context).to have_key(:project)
expect(context[:project]).to be_nil
end
it "excludes author if the object lacks an author" do
context = subject.banzai_render_context(:foo)
expect(context).not_to have_key(:author)
end
it "raises if the context for an unrecognised field is requested" do
expect{subject.banzai_render_context(:not_found)}.to raise_error(ArgumentError)
end
it "includes the pipeline" do
context = subject.banzai_render_context(:baz)
expect(context[:pipeline]).to eq(:single_line)
end
it "returns copies of the context template" do
template = subject.cached_markdown_fields[:baz]
copy = subject.banzai_render_context(:baz)
expect(copy).not_to be(template)
end
context "with a project" do
subject { thing_subclass(:project).new(foo: markdown, foo_html: html, project: :project) }
it "sets the project in the context" do
context = subject.banzai_render_context(:foo)
expect(context).to have_key(:project)
expect(context[:project]).to eq(:project)
end
it "invalidates the cache when project changes" do
subject.project = :new_project
allow(Banzai::Renderer).to receive(:cacheless_render_field).and_return(updated_html)
subject.save
expect(subject.foo_html).to eq(updated_html)
expect(subject.baz_html).to eq(updated_html)
end
end
context "with an author" do
subject { thing_subclass(:author).new(foo: markdown, foo_html: html, author: :author) }
it "sets the author in the context" do
context = subject.banzai_render_context(:foo)
expect(context).to have_key(:author)
expect(context[:author]).to eq(:author)
end
it "invalidates the cache when author changes" do
subject.author = :new_author
allow(Banzai::Renderer).to receive(:cacheless_render_field).and_return(updated_html)
subject.save
expect(subject.foo_html).to eq(updated_html)
expect(subject.baz_html).to eq(updated_html)
end
end
end
end
|
