defmodule Readability.HelperTest do
use ExUnit.Case, async: true
import Readability, only: [parse: 1]
alias Readability.Helper
@sample """
a
abc
b
"""
setup do
html_tree = Floki.parse(@sample)
{:ok, html_tree: html_tree}
end
test "change font tag to span", %{html_tree: html_tree} do
expectred = @sample |> String.replace(~r/font/, "span") |> Floki.parse()
result = Helper.change_tag(html_tree, "font", "span")
assert result == expectred
end
test "remove tag", %{html_tree: html_tree} do
expected = "" |> parse
result =
html_tree
|> Helper.remove_tag(fn {tag, _, _} ->
tag == "p"
end)
assert result == expected
end
test "remove all tags", %{html_tree: html_tree} do
expected = "" |> parse
result =
html_tree
|> Helper.remove_tag(fn {tag, _, _} ->
tag == "html"
end)
assert result == expected
end
test "inner text length", %{html_tree: html_tree} do
result = html_tree |> Helper.text_length()
assert result == 5
end
test "strips out special case tags" do
expected_html =
"Hello
"
|> Helper.normalize()
|> Floki.raw_html()
assert expected_html == "Hello
"
end
test "transform img relative paths into absolute" do
foo_url = "https://example.org/images/foo.png"
bar_url_http = "http://example.org/images/bar.png"
bar_url_https = "https://example.org/images/bar.png"
result_without_scheme =
@sample
|> Helper.normalize(url: "example.org/blog/a-blog-post")
|> Floki.raw_html()
result_with_scheme =
@sample
|> Helper.normalize(url: "https://example.org/blog/a-blog-post")
|> Floki.raw_html()
assert result_without_scheme =~ foo_url
assert result_without_scheme =~ bar_url_http
assert result_with_scheme =~ foo_url
assert result_with_scheme =~ bar_url_https
end
end