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rails--rails/actionview/test/template/javascript_helper_test.rb
yuuji.yaginuma 1b86d90136 Enable Performance/UnfreezeString cop
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.

```ruby
# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "benchmark-ips"
end

Benchmark.ips do |x|
  x.report('+@') { +"" }
  x.report('dup') { "".dup }
  x.compare!
end
```

```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
                  +@   282.289k i/100ms
                 dup   187.638k i/100ms
Calculating -------------------------------------
                  +@      6.775M (± 3.6%) i/s -     33.875M in   5.006253s
                 dup      3.320M (± 2.2%) i/s -     16.700M in   5.032125s

Comparison:
                  +@:  6775299.3 i/s
                 dup:  3320400.7 i/s - 2.04x  slower

```
2018-09-23 08:56:55 +09:00

72 lines
3 KiB
Ruby

# frozen_string_literal: true
require "abstract_unit"
class JavaScriptHelperTest < ActionView::TestCase
tests ActionView::Helpers::JavaScriptHelper
attr_accessor :output_buffer
attr_reader :request
setup do
@old_escape_html_entities_in_json = ActiveSupport.escape_html_entities_in_json
ActiveSupport.escape_html_entities_in_json = true
@template = self
@request = Class.new do
def send_early_hints(links) end
end.new
end
def teardown
ActiveSupport.escape_html_entities_in_json = @old_escape_html_entities_in_json
end
def test_escape_javascript
assert_equal "", escape_javascript(nil)
assert_equal "123", escape_javascript(123)
assert_equal "en", escape_javascript(:en)
assert_equal "false", escape_javascript(false)
assert_equal "true", escape_javascript(true)
assert_equal %(This \\"thing\\" is really\\n netos\\'), escape_javascript(%(This "thing" is really\n netos'))
assert_equal %(backslash\\\\test), escape_javascript(%(backslash\\test))
assert_equal %(dont <\\/close> tags), escape_javascript(%(dont </close> tags))
assert_equal %(unicode &#x2028; newline), escape_javascript((+%(unicode \342\200\250 newline)).force_encoding(Encoding::UTF_8).encode!)
assert_equal %(unicode &#x2029; newline), escape_javascript((+%(unicode \342\200\251 newline)).force_encoding(Encoding::UTF_8).encode!)
assert_equal %(dont <\\/close> tags), j(%(dont </close> tags))
end
def test_escape_javascript_with_safebuffer
given = %('quoted' "double-quoted" new-line:\n </closed>)
expect = %(\\'quoted\\' \\"double-quoted\\" new-line:\\n <\\/closed>)
assert_equal expect, escape_javascript(given)
assert_equal expect, escape_javascript(ActiveSupport::SafeBuffer.new(given))
assert_instance_of String, escape_javascript(given)
assert_instance_of ActiveSupport::SafeBuffer, escape_javascript(ActiveSupport::SafeBuffer.new(given))
end
def test_javascript_tag
self.output_buffer = "foo"
assert_dom_equal "<script>\n//<![CDATA[\nalert('hello')\n//]]>\n</script>",
javascript_tag("alert('hello')")
assert_equal "foo", output_buffer, "javascript_tag without a block should not concat to output_buffer"
end
# Setting the :extname option will control what extension (if any) is appended to the url for assets
def test_javascript_include_tag
assert_dom_equal "<script src='/foo.js'></script>", javascript_include_tag("/foo")
assert_dom_equal "<script src='/foo'></script>", javascript_include_tag("/foo", extname: false)
assert_dom_equal "<script src='/foo.bar'></script>", javascript_include_tag("/foo", extname: ".bar")
end
def test_javascript_tag_with_options
assert_dom_equal "<script id=\"the_js_tag\">\n//<![CDATA[\nalert('hello')\n//]]>\n</script>",
javascript_tag("alert('hello')", id: "the_js_tag")
end
def test_javascript_cdata_section
assert_dom_equal "\n//<![CDATA[\nalert('hello')\n//]]>\n", javascript_cdata_section("alert('hello')")
end
end