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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
require 'abstract_unit'
require 'fileutils'
class FixtureTemplate
attr_reader :source, :handler
def initialize(template_path)
@source = File.read(template_path)
@handler = ActionView::Template.handler_for_extension(:erb)
rescue Errno::ENOENT
raise ActionView::MissingTemplate.new([], "", [], true, [])
end
end
class FixtureFinder
FIXTURES_DIR = "#{File.dirname(__FILE__)}/../fixtures/digestor"
def find(logical_name, keys, partial, options)
FixtureTemplate.new("digestor/#{partial ? logical_name.gsub(%r|/([^/]+)$|, '/_\1') : logical_name}.#{options[:formats].first}.erb")
end
end
class TemplateDigestorTest < ActionView::TestCase
def setup
@cwd = Dir.pwd
@tmp_dir = Dir.mktmpdir
FileUtils.cp_r FixtureFinder::FIXTURES_DIR, @tmp_dir
Dir.chdir @tmp_dir
end
def teardown
Dir.chdir @cwd
FileUtils.rm_r @tmp_dir
ActionView::Digestor.cache.clear
end
def test_top_level_change_reflected
assert_digest_difference("messages/show") do
change_template("messages/show")
end
end
def test_explicit_dependency
assert_digest_difference("messages/show") do
change_template("messages/_message")
end
end
def test_explicit_dependency_in_multiline_erb_tag
assert_digest_difference("messages/show") do
change_template("messages/_form")
end
end
def test_second_level_dependency
assert_digest_difference("messages/show") do
change_template("comments/_comments")
end
end
def test_second_level_dependency_within_same_directory
assert_digest_difference("messages/show") do
change_template("messages/_header")
end
end
def test_third_level_dependency
assert_digest_difference("messages/show") do
change_template("comments/_comment")
end
end
def test_directory_depth_dependency
assert_digest_difference("level/below/index") do
change_template("level/below/_header")
end
end
def test_logging_of_missing_template
assert_logged "Couldn't find template for digesting: messages/something_missing.html" do
digest("messages/show")
end
end
def test_logging_of_missing_template_ending_with_number
assert_logged "Couldn't find template for digesting: messages/something_missing_1.html" do
digest("messages/show")
end
end
def test_nested_template_directory
assert_digest_difference("messages/show") do
change_template("messages/actions/_move")
end
end
def test_dont_generate_a_digest_for_missing_templates
assert_equal '', digest("nothing/there")
end
def test_collection_dependency
assert_digest_difference("messages/index") do
change_template("messages/_message")
end
assert_digest_difference("messages/index") do
change_template("events/_event")
end
end
def test_collection_derived_from_record_dependency
assert_digest_difference("messages/show") do
change_template("events/_event")
end
end
def test_extra_whitespace_in_render_partial
assert_digest_difference("messages/edit") do
change_template("messages/_form")
end
end
def test_extra_whitespace_in_render_named_partial
assert_digest_difference("messages/edit") do
change_template("messages/_header")
end
end
def test_extra_whitespace_in_render_record
assert_digest_difference("messages/edit") do
change_template("messages/_message")
end
end
def test_extra_whitespace_in_render_with_parenthesis
assert_digest_difference("messages/edit") do
change_template("events/_event")
end
end
def test_old_style_hash_in_render_invocation
assert_digest_difference("messages/edit") do
change_template("comments/_comment")
end
end
def test_dependencies_via_options_results_in_different_digest
digest_plain = digest("comments/_comment")
digest_fridge = digest("comments/_comment", dependencies: ["fridge"])
digest_phone = digest("comments/_comment", dependencies: ["phone"])
digest_fridge_phone = digest("comments/_comment", dependencies: ["fridge", "phone"])
assert_not_equal digest_plain, digest_fridge
assert_not_equal digest_plain, digest_phone
assert_not_equal digest_plain, digest_fridge_phone
assert_not_equal digest_fridge, digest_phone
assert_not_equal digest_fridge, digest_fridge_phone
assert_not_equal digest_phone, digest_fridge_phone
end
private
def assert_logged(message)
old_logger = ActionView::Base.logger
log = StringIO.new
ActionView::Base.logger = Logger.new(log)
begin
yield
log.rewind
assert_match message, log.read
ensure
ActionView::Base.logger = old_logger
end
end
def assert_digest_difference(template_name)
previous_digest = digest(template_name)
ActionView::Digestor.cache.clear
yield
assert previous_digest != digest(template_name), "digest didn't change"
ActionView::Digestor.cache.clear
end
def digest(template_name, options={})
ActionView::Digestor.digest(template_name, :html, FixtureFinder.new, options)
end
def change_template(template_name)
File.open("digestor/#{template_name}.html.erb", "w") do |f|
f.write "\nTHIS WAS CHANGED!"
end
end
end
|
