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Handle missing javascript/stylesheets assets by raising an exception

Browse source 
An exception will be raised if a local javascript/stylesheet file included
by the stylesheet_link_tag or javascript_include_tag can not be found.

When caching is enabled, we use atomic_write to ensure that the cache file
is not created with zero length.

Signed-off-by: Michael Koziarski <michael@koziarski.com>

[#2738 state:committed]
This commit is contained in:
Christos Zisopoulos 2009-05-29 15:42:44 +02:00 committed by Michael Koziarski
parent 8ee60660ce
commit 18a97a6601
6 changed files with 120 additions and 34 deletions
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32
actionpack/lib/action_view/helpers/asset_tag_helper.rb
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@ -1,6 +1,7 @@
require 'cgi'
require 'action_view/helpers/url_helper'
require 'action_view/helpers/tag_helper'
require 'active_support/core_ext/file'
module ActionView
module Helpers #:nodoc:
@ -285,7 +286,7 @@ module ActionView
end
javascript_src_tag(joined_javascript_name, options)
else
expand_javascript_sources(sources, recursive).collect { |source| javascript_src_tag(source, options) }.join("\n")
ensure_javascript_sources!(expand_javascript_sources(sources, recursive)).collect { |source| javascript_src_tag(source, options) }.join("\n")
end
end
@ -434,7 +435,7 @@ module ActionView
end
stylesheet_tag(joined_stylesheet_name, options)
else
expand_stylesheet_sources(sources, recursive).collect { |source| stylesheet_tag(source, options) }.join("\n")
ensure_stylesheet_sources!(expand_stylesheet_sources(sources, recursive)).collect { |source| stylesheet_tag(source, options) }.join("\n")
end
end
@ -664,13 +665,28 @@ module ActionView
end
end
def ensure_stylesheet_sources!(sources)
sources.each do |source|
asset_file_path!(path_to_stylesheet(source))
end
return sources
end
def ensure_javascript_sources!(sources)
sources.each do |source|
asset_file_path!(path_to_javascript(source))
end
return sources
end
def join_asset_file_contents(paths)
paths.collect { |path| File.read(asset_file_path(path)) }.join("\n\n")
paths.collect { |path| File.read(asset_file_path!(path)) }.join("\n\n")
end
def write_asset_file_contents(joined_asset_path, asset_paths)
FileUtils.mkdir_p(File.dirname(joined_asset_path))
File.open(joined_asset_path, "w+") { |cache| cache.write(join_asset_file_contents(asset_paths)) }
File.atomic_write(joined_asset_path) { |cache| cache.write(join_asset_file_contents(asset_paths)) }
# Set mtime to the latest of the combined files to allow for
# consistent ETag without a shared filesystem.
@ -682,6 +698,14 @@ module ActionView
File.join(ASSETS_DIR, path.split('?').first)
end
def asset_file_path!(path)
unless path =~ %r{^[-a-z]+://}
absolute_path = asset_file_path(path)
raise(Errno::ENOENT, "Asset file not found at '#{absolute_path}'" ) unless File.exist?(absolute_path)
return absolute_path
end
end
def collect_asset_files(*path)
dir = path.first

1
actionpack/test/fixtures/public/elsewhere/cools.js vendored Normal file
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@ -0,0 +1 @@
// cools.js

1
actionpack/test/fixtures/public/elsewhere/file.css vendored Normal file
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@ -0,0 +1 @@
/*file.css*/

1
actionpack/test/fixtures/public/javascripts/common.javascript vendored Normal file
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@ -0,0 +1 @@
// common.javascript

1
actionpack/test/fixtures/public/stylesheets/random.styles vendored Normal file
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@ -0,0 +1 @@
/* random.styles */

118
actionpack/test/template/asset_tag_helper_test.rb
View file

@ -75,22 +75,22 @@ class AssetTagHelperTest < ActionView::TestCase
}
JavascriptIncludeToTag = {
%(javascript_include_tag("xmlhr")) => %(<script src="/javascripts/xmlhr.js" type="text/javascript"></script>),
%(javascript_include_tag("xmlhr.js")) => %(<script src="/javascripts/xmlhr.js" type="text/javascript"></script>),
%(javascript_include_tag("xmlhr", :lang => "vbscript")) => %(<script lang="vbscript" src="/javascripts/xmlhr.js" type="text/javascript"></script>),
%(javascript_include_tag("bank")) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>),
%(javascript_include_tag("bank.js")) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>),
%(javascript_include_tag("bank", :lang => "vbscript")) => %(<script lang="vbscript" src="/javascripts/bank.js" type="text/javascript"></script>),
%(javascript_include_tag("common.javascript", "/elsewhere/cools")) => %(<script src="/javascripts/common.javascript" type="text/javascript"></script>\n<script src="/elsewhere/cools.js" type="text/javascript"></script>),
%(javascript_include_tag(:defaults)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
%(javascript_include_tag(:all)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/version.1.0.js" type="text/javascript"></script>),
%(javascript_include_tag(:all, :recursive => true)) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/subdir/subdir.js" type="text/javascript"></script>\n<script src="/javascripts/version.1.0.js" type="text/javascript"></script>),
%(javascript_include_tag(:defaults, "test")) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/test.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
%(javascript_include_tag("test", :defaults)) => %(<script src="/javascripts/test.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>)
%(javascript_include_tag(:defaults, "bank")) => %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>),
%(javascript_include_tag("bank", :defaults)) => %(<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>)
}
StylePathToTag = {
%(stylesheet_path("style")) => %(/stylesheets/style.css),
%(stylesheet_path("style.css")) => %(/stylesheets/style.css),
%(stylesheet_path('dir/file')) => %(/stylesheets/dir/file.css),
%(stylesheet_path('/dir/file.rcss')) => %(/dir/file.rcss)
%(stylesheet_path("bank")) => %(/stylesheets/bank.css),
%(stylesheet_path("bank.css")) => %(/stylesheets/bank.css),
%(stylesheet_path('subdir/subdir')) => %(/stylesheets/subdir/subdir.css),
%(stylesheet_path('/subdir/subdir.css')) => %(/subdir/subdir.css)
}
PathToStyleToTag = {
@ -101,15 +101,16 @@ class AssetTagHelperTest < ActionView::TestCase
}
StyleLinkToTag = {
%(stylesheet_link_tag("style")) => %(<link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("style.css")) => %(<link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("/dir/file")) => %(<link href="/dir/file.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("dir/file")) => %(<link href="/stylesheets/dir/file.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("style", :media => "all")) => %(<link href="/stylesheets/style.css" media="all" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("bank")) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("bank.css")) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("/elsewhere/file")) => %(<link href="/elsewhere/file.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("subdir/subdir")) => %(<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("bank", :media => "all")) => %(<link href="/stylesheets/bank.css" media="all" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag(:all)) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag(:all, :recursive => true)) => %(<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag(:all, :media => "all")) => %(<link href="/stylesheets/bank.css" media="all" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="all" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/version.1.0.css" media="all" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("random.styles", "/css/stylish")) => %(<link href="/stylesheets/random.styles" media="screen" rel="stylesheet" type="text/css" />\n<link href="/css/stylish.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("random.styles", "/elsewhere/file")) => %(<link href="/stylesheets/random.styles" media="screen" rel="stylesheet" type="text/css" />\n<link href="/elsewhere/file.css" media="screen" rel="stylesheet" type="text/css" />),
%(stylesheet_link_tag("http://www.example.com/styles/style")) => %(<link href="http://www.example.com/styles/style.css" media="screen" rel="stylesheet" type="text/css" />)
}
@ -160,6 +161,20 @@ class AssetTagHelperTest < ActionView::TestCase
JavascriptIncludeToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end
def test_javascript_include_tag_with_missing_source
assert_raise(Errno::ENOENT) {
javascript_include_tag('missing_security_guard')
}
assert_raise(Errno::ENOENT) {
javascript_include_tag(:defaults, 'missing_security_guard')
}
assert_nothing_raised {
javascript_include_tag('http://example.com/css/missing_security_guard')
}
end
def test_javascript_include_tag_with_given_asset_id
ENV["RAILS_ASSET_ID"] = "1"
assert_dom_equal(%(<script src="/javascripts/prototype.js?1" type="text/javascript"></script>\n<script src="/javascripts/effects.js?1" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js?1" type="text/javascript"></script>\n<script src="/javascripts/controls.js?1" type="text/javascript"></script>\n<script src="/javascripts/application.js?1" type="text/javascript"></script>), javascript_include_tag(:defaults))
@ -167,26 +182,27 @@ class AssetTagHelperTest < ActionView::TestCase
def test_register_javascript_include_default
ENV["RAILS_ASSET_ID"] = ""
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'slider'
assert_dom_equal %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/slider.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'bank'
assert_dom_equal %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
end
def test_register_javascript_include_default_mixed_defaults
ENV["RAILS_ASSET_ID"] = ""
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'slider'
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'lib1', '/elsewhere/blub/lib2'
assert_dom_equal %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/slider.js" type="text/javascript"></script>\n<script src="/javascripts/lib1.js" type="text/javascript"></script>\n<script src="/elsewhere/blub/lib2.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'bank'
ActionView::Helpers::AssetTagHelper::register_javascript_include_default 'robber', '/elsewhere/cools.js'
assert_dom_equal %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/elsewhere/cools.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
end
def test_custom_javascript_expansions
ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
assert_dom_equal %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>), javascript_include_tag('first', :monkey, 'last')
ENV["RAILS_ASSET_ID"] = ""
ActionView::Helpers::AssetTagHelper::register_javascript_expansion :robbery => ["bank", "robber"]
assert_dom_equal %(<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>), javascript_include_tag('controls', :robbery, 'effects')
end
def test_custom_javascript_expansions_and_defaults_puts_application_js_at_the_end
ENV["RAILS_ASSET_ID"] = ""
ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
assert_dom_equal %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('first', :defaults, :monkey, 'last')
ActionView::Helpers::AssetTagHelper::register_javascript_expansion :robbery => ["bank", "robber"]
assert_dom_equal %(<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/bank.js" type="text/javascript"></script>\n<script src="/javascripts/robber.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('controls',:defaults, :robbery, 'effects')
end
def test_custom_javascript_expansions_with_undefined_symbol
@ -195,6 +211,7 @@ class AssetTagHelperTest < ActionView::TestCase
end
def test_stylesheet_path
ENV["RAILS_ASSET_ID"] = ""
StylePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end
@ -207,9 +224,20 @@ class AssetTagHelperTest < ActionView::TestCase
StyleLinkToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end
def test_stylesheet_link_tag_with_missing_source
assert_raise(Errno::ENOENT) {
stylesheet_link_tag('missing_security_guard')
}
assert_nothing_raised {
stylesheet_link_tag('http://example.com/css/missing_security_guard')
}
end
def test_custom_stylesheet_expansions
ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :monkey => ["head", "body", "tail"]
assert_dom_equal %(<link href="/stylesheets/first.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/head.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/body.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/tail.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/last.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag('first', :monkey, 'last')
ENV["RAILS_ASSET_ID"] = ''
ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :robbery => ["bank", "robber"]
assert_dom_equal %(<link href="/stylesheets/version.1.0.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/bank.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/robber.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/subdir/subdir.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag('version.1.0', :robbery, 'subdir/subdir')
end
def test_custom_stylesheet_expansions_with_undefined_symbol
@ -546,8 +574,14 @@ class AssetTagHelperTest < ActionView::TestCase
stylesheet_link_tag(:all, :cache => true)
)
expected = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/*.css"].map { |p| File.mtime(p) }.max
assert_equal expected, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
files_to_be_joined = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/[^all]*.css"]
expected_mtime = files_to_be_joined.map { |p| File.mtime(p) }.max
assert_equal expected_mtime, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
bytes_added_by_join = "\n\n".size * files_to_be_joined.size - "\n\n".size
expected_size = files_to_be_joined.sum { |p| File.size(p) } + bytes_added_by_join
assert_equal expected_size, File.size(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
assert_dom_equal(
%(<link href="http://a0.example.com/stylesheets/money.css" media="screen" rel="stylesheet" type="text/css" />),
@ -598,6 +632,28 @@ class AssetTagHelperTest < ActionView::TestCase
FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::ASSETS_DIR, 'absolute'))
end
def test_caching_stylesheet_link_tag_when_caching_on_and_missing_css_file
ENV["RAILS_ASSET_ID"] = ""
ActionController::Base.asset_host = 'http://a0.example.com'
ActionController::Base.perform_caching = true
assert_raise(Errno::ENOENT) {
stylesheet_link_tag('bank', 'robber', 'missing_security_guard', :cache => true)
}
assert ! File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
assert_raise(Errno::ENOENT) {
stylesheet_link_tag('bank', 'robber', 'missing_security_guard', :cache => "money")
}
assert ! File.exist?(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
ensure
FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
FileUtils.rm_f(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'money.css'))
end
def test_caching_stylesheet_link_tag_when_caching_on_with_proc_asset_host
ENV["RAILS_ASSET_ID"] = ""
ActionController::Base.asset_host = Proc.new { |source| "http://a#{source.length}.example.com" }
@ -625,8 +681,10 @@ class AssetTagHelperTest < ActionView::TestCase
stylesheet_link_tag(:all, :cache => true)
)
expected = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/*.css"].map { |p| File.mtime(p) }.max
assert_equal expected, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
files_to_be_joined = Dir["#{ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR}/[^all]*.css"]
expected_mtime = files_to_be_joined.map { |p| File.mtime(p) }.max
assert_equal expected_mtime, File.mtime(File.join(ActionView::Helpers::AssetTagHelper::STYLESHEETS_DIR, 'all.css'))
assert_dom_equal(
%(<link href="/collaboration/hieraki/stylesheets/money.css" media="screen" rel="stylesheet" type="text/css" />),