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# frozen_string_literal: true
require "test_helper"
class ActiveStorage::FilenameTest < ActiveSupport::TestCase
test "base" do
assert_equal "racecar", ActiveStorage::Filename.new("racecar.jpg").base
assert_equal "race.car", ActiveStorage::Filename.new("race.car.jpg").base
assert_equal "racecar", ActiveStorage::Filename.new("racecar").base
end
test "extension with delimiter" do
assert_equal ".jpg", ActiveStorage::Filename.new("racecar.jpg").extension_with_delimiter
assert_equal ".jpg", ActiveStorage::Filename.new("race.car.jpg").extension_with_delimiter
assert_equal "", ActiveStorage::Filename.new("racecar").extension_with_delimiter
end
test "extension without delimiter" do
assert_equal "jpg", ActiveStorage::Filename.new("racecar.jpg").extension_without_delimiter
assert_equal "jpg", ActiveStorage::Filename.new("race.car.jpg").extension_without_delimiter
assert_equal "", ActiveStorage::Filename.new("racecar").extension_without_delimiter
end
test "sanitize" do
"%$|:;/\t\r\n\\".each_char do |character|
filename = ActiveStorage::Filename.new("foo#{character}bar.pdf")
assert_equal "foo-bar.pdf", filename.sanitized
assert_equal "foo-bar.pdf", filename.to_s
end
end
test "sanitize transcodes to valid UTF-8" do
{ (+"\xF6").force_encoding(Encoding::ISO8859_1) => "ö",
(+"\xC3").force_encoding(Encoding::ISO8859_1) => "Ã",
"\xAD" => "�",
"\xCF" => "�",
"\x00" => "",
}.each do |actual, expected|
assert_equal expected, ActiveStorage::Filename.new(actual).sanitized
end
end
test "strips RTL override chars used to spoof unsafe executables as docs" do
# Would be displayed in Windows as "evilexe.pdf" due to the right-to-left
# (RTL) override char!
assert_equal "evil-fdp.exe", ActiveStorage::Filename.new("evil\u{202E}fdp.exe").sanitized
end
test "compare case-insensitively" do
assert_operator ActiveStorage::Filename.new("foobar.pdf"), :==, ActiveStorage::Filename.new("FooBar.PDF")
end
test "compare sanitized" do
assert_operator ActiveStorage::Filename.new("foo-bar.pdf"), :==, ActiveStorage::Filename.new("foo\tbar.pdf")
end
end
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