distraction.party/test/pleroma/akkoma/translators/argos_translate_test.exs
ilja c092fc9fd6 Add translation module for Argos Translate (#351)
Argos Translate is a Python module for translation and can be used as a command line tool.

This is also the engine for LibreTranslate, for which we already have a module.
Here we can use the engine directly from our server without doing requests to a third party or having to install our own LibreTranslate webservice (obviously you do have to install Argos Translate).

One thing that's currently still missing from Argos Translate is auto-detection of languages (see <https://github.com/argosopentech/argos-translate/issues/9>). For now, when no source language is provided, we just return the text unchanged, supposedly translated from the target language. That way you get a near immediate response in pleroma-fe when clicking Translate, after which you can select the source language from a dropdown.

Argos Translate also doesn't seem to handle html very well. Therefore we give admins the option to strip the html before translating. I made this an option because I'm unsure if/how this will change in the future.

Co-authored-by: ilja <git@ilja.space>
Reviewed-on: AkkomaGang/akkoma#351
Co-authored-by: ilja <akkoma.dev@ilja.space>
Co-committed-by: ilja <akkoma.dev@ilja.space>
2022-12-19 13:06:39 +00:00

93 lines
3.4 KiB
Elixir

defmodule Pleroma.Akkoma.Translators.ArgosTranslateTest do
alias Pleroma.Akkoma.Translators.ArgosTranslate
import Mock
use Pleroma.DataCase, async: true
setup do
clear_config([:argos_translate, :command_argos_translate], "argos-translate_test")
clear_config([:argos_translate, :command_argospm], "argospm_test")
end
test "it lists available languages" do
languages =
with_mock System, [:passthrough],
cmd: fn "argospm_test", ["list"], _ ->
{"translate-nl_en\ntranslate-en_nl\ntranslate-ja_en\n", 0}
end do
ArgosTranslate.languages()
end
assert {:ok, source_langs, dest_langs} = languages
assert [%{code: "en", name: "en"}, %{code: "ja", name: "ja"}, %{code: "nl", name: "nl"}] =
source_langs |> Enum.sort()
assert [%{code: "en", name: "en"}, %{code: "nl", name: "nl"}] = dest_langs |> Enum.sort()
end
test "it translates from the to language when no language is set and returns the text unchanged" do
assert {:ok, "nl", "blabla"} = ArgosTranslate.translate("blabla", nil, "nl")
end
test "it translates from the provided language if provided" do
translation_response =
with_mock System, [:passthrough],
cmd: fn "argos-translate_test", ["--from-lang", "nl", "--to-lang", "en", "blabla"], _ ->
{"yadayada", 0}
end do
ArgosTranslate.translate("blabla", "nl", "en")
end
assert {:ok, "nl", "yadayada"} = translation_response
end
test "it returns a proper error when the executable can't be found" do
non_existing_command = "sfqsfgqsefd"
clear_config([:argos_translate, :command_argos_translate], non_existing_command)
clear_config([:argos_translate, :command_argospm], non_existing_command)
assert nil == System.find_executable(non_existing_command)
assert {:error, "ArgosTranslate failed to fetch languages" <> _} = ArgosTranslate.languages()
assert {:error, "ArgosTranslate failed to translate" <> _} =
ArgosTranslate.translate("blabla", "nl", "en")
end
test "it can strip html" do
content =
~s[<p>What&#39;s up my fellow fedizens?</p><p>So anyway</p><ul><li><a class="hashtag" data-tag="cofe" href="https://suya.space/tag/cofe">#cofe</a></li><li><a class="hashtag" data-tag="suya" href="https://cofe.space/tag/suya">#Suya</a></li></ul><p>ammiright!<br/>:ablobfoxhyper:</p>]
stripped_content =
"\nWhat's up my fellow fedizens?\n\nSo anyway\n\n#cofe\n#Suya\nammiright!\n:ablobfoxhyper:\n"
expected_response_strip_html =
"<br/>What&#39;s up my fellow fedizens?<br/><br/>So anyway<br/><br/>#cofe<br/>#Suya<br/>ammiright!<br/>:ablobfoxhyper:<br/>"
response_strip_html =
with_mock System, [:passthrough],
cmd: fn "argos-translate_test",
["--from-lang", _, "--to-lang", _, ^stripped_content],
_ ->
{stripped_content, 0}
end do
ArgosTranslate.translate(content, "nl", "en")
end
clear_config([:argos_translate, :strip_html], false)
response_no_strip_html =
with_mock System, [:passthrough],
cmd: fn "argos-translate_test", ["--from-lang", _, "--to-lang", _, string], _ ->
{string, 0}
end do
ArgosTranslate.translate(content, "nl", "en")
end
assert {:ok, "nl", content} == response_no_strip_html
assert {:ok, "nl", expected_response_strip_html} == response_strip_html
end
end