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# frozen_string_literal: true
require "helper"
class UnitTestScrubber < Loofah::TestCase
FRAGMENT = "<span>hello</span><span>goodbye</span>"
FRAGMENT_NODE_COUNT = 4 # span, text, span, text
FRAGMENT_NODE_STOP_TOP_DOWN = 2 # span, span
DOCUMENT = "<html><head><link></link></head><body><span>hello</span><span>goodbye</span></body></html>"
DOCUMENT_NODE_COUNT = 8 # html, head, link, body, span, text, span, text
DOCUMENT_NODE_STOP_TOP_DOWN = 1 # html
context "receiving a block" do
before do
@count = 0
end
context "returning CONTINUE" do
before do
@scrubber = Loofah::Scrubber.new do |_node|
@count += 1
Loofah::Scrubber::CONTINUE
end
end
it "operates properly" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end
it "operates properly" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end
it "operates properly" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end if Loofah.html5_support?
it "operates properly" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end if Loofah.html5_support?
end
context "returning STOP" do
before do
@scrubber = Loofah::Scrubber.new do |_node|
@count += 1
Loofah::Scrubber::STOP
end
end
it "operates as top-down" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
it "operates as top-down" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
end
context "returning neither CONTINUE nor STOP" do
before do
@scrubber = Loofah::Scrubber.new do |_node|
@count += 1
end
end
it "acts as if CONTINUE was returned" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end
it "acts as if CONTINUE was returned" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end
it "acts as if CONTINUE was returned" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end if Loofah.html5_support?
it "acts as if CONTINUE was returned" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end if Loofah.html5_support?
end
context "not specifying direction" do
before do
@scrubber = Loofah::Scrubber.new do |_node|
@count += 1
Loofah::Scrubber::STOP
end
end
it "operates as top-down" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
it "operates as top-down" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
end
context "specifying top-down direction" do
before do
@scrubber = Loofah::Scrubber.new(direction: :top_down) do |_node|
@count += 1
Loofah::Scrubber::STOP
end
end
it "operates as top-down" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end
it "operates as top-down" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
it "operates as top-down" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @count
end if Loofah.html5_support?
end
context "specifying bottom-up direction" do
before do
@scrubber = Loofah::Scrubber.new(direction: :bottom_up) do |_node|
@count += 1
end
end
it "operates as bottom-up" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end
it "operates as bottom-up" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end
it "operates as bottom-up" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end if Loofah.html5_support?
it "operates as bottom-up" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end if Loofah.html5_support?
end
context "invalid direction" do
it "raise an exception" do
assert_raises(ArgumentError) do
Loofah::Scrubber.new(direction: :quux) {}
end
end
end
context "given a block taking zero arguments" do
before do
@scrubber = Loofah::Scrubber.new do
@count += 1
end
end
it "works anyway, shrug" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end
it "works anyway, shrug" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end
it "works anyway, shrug" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @count
end if Loofah.html5_support?
it "works anyway, shrug" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @count
end if Loofah.html5_support?
end
end
context "defining a new Scrubber class" do
before do
@klass = Class.new(Loofah::Scrubber) do
attr_accessor :count
def initialize(direction = nil) # rubocop:disable Lint/MissingSuper
@direction = direction
@count = 0
end
def scrub(node)
@count += 1
Loofah::Scrubber::STOP
end
end
end
context "when not specifying direction" do
before do
@scrubber = @klass.new
assert_nil @scrubber.direction
end
it "operates as top-down" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end
it "operates as top-down" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end
it "operates as top-down" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end if Loofah.html5_support?
it "operates as top-down" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end if Loofah.html5_support?
end
context "when direction is specified as top_down" do
before do
@scrubber = @klass.new(:top_down)
assert_equal :top_down, @scrubber.direction
end
it "operates as top-down" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end
it "operates as top-down" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end
it "operates as top-down" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end if Loofah.html5_support?
it "operates as top-down" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_STOP_TOP_DOWN, @scrubber.count
end if Loofah.html5_support?
end
context "when direction is specified as bottom_up" do
before do
@scrubber = @klass.new(:bottom_up)
assert_equal :bottom_up, @scrubber.direction
end
it "operates as bottom-up" do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @scrubber.count
end
it "operates as bottom-up" do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @scrubber.count
end
it "operates as bottom-up" do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
assert_equal FRAGMENT_NODE_COUNT, @scrubber.count
end if Loofah.html5_support?
it "operates as bottom-up" do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
assert_equal DOCUMENT_NODE_COUNT, @scrubber.count
end if Loofah.html5_support?
end
end
context "creating a new Scrubber class with no scrub method" do
before do
@klass = Class.new(Loofah::Scrubber) do
def initialize; end # rubocop:disable Lint/MissingSuper
end
@scrubber = @klass.new
end
it "raises an exception" do
assert_raises(Loofah::ScrubberNotFound) do
Loofah.scrub_html4_fragment(FRAGMENT, @scrubber)
end
assert_raises(Loofah::ScrubberNotFound) do
Loofah.scrub_html4_document(DOCUMENT, @scrubber)
end
assert_raises(Loofah::ScrubberNotFound) do
Loofah.scrub_html5_fragment(FRAGMENT, @scrubber)
end if Loofah.html5_support?
assert_raises(Loofah::ScrubberNotFound) do
Loofah.scrub_html5_document(DOCUMENT, @scrubber)
end if Loofah.html5_support?
end
end
end
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