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koreader/spec/unit/gettext_spec.lua
Frans de Jonge d64e143297
[i18n] GetText: ignore fuzzy strings (#5807) 
Strings are prefilled by msgmerge with closely matching ones to reduce the amount of labor required by the translator. Often the string requires only minor adjustment, making the process faster, and when the string isn't a good match it's no big deal. However, these so-called fuzzy strings shouldn't be treated as if they were actually translated.

Fixes the effect seen in <https://github.com/koreader/koreader/issues/5806>.
2020-02-03 12:11:07 +01:00

392 lines
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local test_po_part1 = [[
# KOReader PATH/TO/FILE.PO
# Copyright (C) 2005-2019 KOReader Development Team
#
# Translators:
# Frans de Jonge <fransdejonge@gmail.com>, 2014-2019
# Markismus <zulde.zuldemans@gmail.com>, 2014
msgid ""
msgstr ""
"Project-Id-Version: KOReader\n"
"Report-Msgid-Bugs-To: https://github.com/koreader/koreader-base/issues\n"
"POT-Creation-Date: 2019-08-10 06:01+0000\n"
"PO-Revision-Date: 2019-08-08 06:34+0000\n"
"Last-Translator: Frans de Jonge <fransdejonge@gmail.com>\n"
"Language-Team: Dutch (Netherlands) (http://www.transifex.com/houqp/koreader/language/nl_NL/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: nl_NL\n"
]]
local test_plurals_nl = [[
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
]]
local test_plurals_none = [[
"Plural-Forms: nplurals=1; plural=0;"
]]
local test_plurals_ar = [[
"Plural-Forms: nplurals=6; plural=n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 && n%100<=10 ? 3 : n%100>=11 && n%100<=99 ? 4 : 5;\n"
]]
local test_plurals_ru = [[
"Plural-Forms: nplurals=4; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<12 || n%100>14) ? 1 : n%10==0 || (n%10>=5 && n%10<=9) || (n%100>=11 && n%100<=14)? 2 : 3);\n"
]]
local test_plurals_simple = [[
"Plural-Forms: nplurals=2; plural=(n > 2);\n"
]]
local test_plurals_many = [[
"Plural-Forms: nplurals=5; plural=(n > 3 ? 3 : n > 2 ? 2 : n > 1 ? 1 : 0);"
]]
local test_po_part2 = [[
#: frontend/ui/widget/configdialog.lua:1016
msgid ""
"\n"
"message"
msgstr "\nbericht"
#: frontend/device/android/device.lua:259
msgid "1 item"
msgid_plural "%1 items"
msgstr[0] "1 ding"
msgstr[1] "%1 dingen"
msgstr[2] "%1 dingen 2"
msgstr[3] ""
msgstr[4] ""
msgstr[5] ""
#: frontend/device/android/device.lua:359
msgid "1 untranslated"
msgid_plural "%1 untranslated"
msgstr[0] ""
msgstr[1] ""
msgstr[2] ""
msgstr[3] ""
msgstr[4] ""
msgstr[5] ""
#: frontend/ui/data/css_tweaks.lua:17
msgctxt "Style tweaks category"
msgid "Pages"
msgstr "Pagina's"
#: frontend/ui/data/css_tweaks.lua:20
msgctxt "Other pages"
msgid "Pages"
msgstr "Pages different context"
#: frontend/ui/data/css_tweaks.lua:30
msgctxt "Context 1"
msgid "Page"
msgid_plural "Pages"
msgstr[0] "Pagina"
msgstr[1] "Pagina's"
msgstr[2] "Pagina's plural 2"
msgstr[3] "Pagina's plural 3"
msgstr[4] "Pagina's plural 4"
msgstr[5] "Pagina's plural 5"
#: frontend/ui/data/css_tweaks.lua:40
msgctxt "Context 2"
msgid "Page"
msgid_plural "Pages"
msgstr[0] "Pagina context 2 plural 0"
msgstr[1] "Pagina's context 2 plural 1"
msgstr[2] "Pagina's context 2 plural 2"
msgstr[3] ""
msgstr[4] ""
msgstr[5] ""
#: frontend/ui/data/css_tweaks.lua:50
#, fuzzy
msgid "Fuzzy"
msgstr "Fuzzy translated"
]]
describe("GetText module", function()
local GetText
local test_po_ar
local test_po_nl, test_po_ru
local test_po_none, test_po_simple
local test_po_many
setup(function()
require("commonrequire")
GetText = require("gettext")
GetText.dirname = "i18n-test"
local lfs = require("libs/libkoreader-lfs")
lfs.mkdir(GetText.dirname)
lfs.mkdir(GetText.dirname.."/nl_NL")
lfs.mkdir(GetText.dirname.."/none")
lfs.mkdir(GetText.dirname.."/ar")
lfs.mkdir(GetText.dirname.."/ru")
lfs.mkdir(GetText.dirname.."/simple")
lfs.mkdir(GetText.dirname.."/many")
test_po_nl = GetText.dirname.."/nl_NL/koreader.po"
local f = io.open(test_po_nl, "w")
f:write(test_po_part1, test_plurals_nl, test_po_part2)
f:close()
-- same file, just different plural for testing
test_po_none = GetText.dirname.."/none/koreader.po"
f = io.open(test_po_none, "w")
f:write(test_po_part1, test_plurals_none, test_po_part2)
f:close()
-- same file, just different plural for testing
test_po_ar = GetText.dirname.."/ar/koreader.po"
f = io.open(test_po_ar, "w")
f:write(test_po_part1, test_plurals_ar, test_po_part2)
f:close()
-- same file, just different plural for testing
test_po_ru = GetText.dirname.."/ru/koreader.po"
f = io.open(test_po_ru, "w")
f:write(test_po_part1, test_plurals_ru, test_po_part2)
f:close()
-- same file, just different plural for testing
test_po_simple = GetText.dirname.."/simple/koreader.po"
f = io.open(test_po_simple, "w")
f:write(test_po_part1, test_plurals_simple, test_po_part2)
f:close()
-- same file, just different plural for testing
test_po_many = GetText.dirname.."/many/koreader.po"
f = io.open(test_po_many, "w")
f:write(test_po_part1, test_plurals_many, test_po_part2)
f:close()
end)
teardown(function()
os.remove(test_po_nl)
os.remove(test_po_none)
os.remove(test_po_ar)
os.remove(test_po_ru)
os.remove(test_po_simple)
os.remove(test_po_many)
os.remove(GetText.dirname.."/nl_NL")
os.remove(GetText.dirname.."/none")
os.remove(GetText.dirname.."/ar")
os.remove(GetText.dirname.."/ru")
os.remove(GetText.dirname.."/simple")
os.remove(GetText.dirname.."/many")
os.remove(GetText.dirname)
end)
describe("changeLang", function()
it("should return nil when passing newlang = C", function()
assert.is_nil(GetText.changeLang("C"))
end)
it("should return nil when passing empty string or nil value", function()
assert.is_nil(GetText.changeLang(nil))
assert.is_nil(GetText.changeLang(""))
end)
it("should return nil when passing values that start with en_US", function()
assert.is_nil(GetText.changeLang("en_US"))
assert.is_nil(GetText.changeLang("en_US:en"))
assert.is_nil(GetText.changeLang("en_US.utf8"))
end)
it("should return false when it can't find a po file", function()
assert.is_false(GetText.changeLang("nonsense"))
assert.is_false(GetText.changeLang("more_NONSENSE"))
end)
end)
describe("cannot find string", function()
it("gettext should return input string", function()
assert.is_equal("bla", GetText("bla"))
end)
it("ngettext should return input string", function()
assert.is_equal("bla", GetText.ngettext("bla", "blabla", 1))
assert.is_equal("blabla", GetText.ngettext("bla", "blabla", 2))
end)
it("pgettext should return input string", function()
assert.is_equal("bla", GetText.pgettext("some context", "bla"))
end)
it("npgettext should return input string", function()
assert.is_equal("bla", GetText.npgettext("some context", "bla", "blabla", 1))
assert.is_equal("blabla", GetText.npgettext("some context", "bla", "blabla", 2))
end)
end)
describe("language with standard plurals", function()
GetText.changeLang("nl_NL")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 5))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina's", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina's context 2 plural 1", GetText.npgettext("Context 2", "Page", "Pages", 2))
end)
end)
describe("language with simple plurals n > 2", function()
GetText.changeLang("simple")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 3))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina's", GetText.npgettext("Context 1", "Page", "Pages", 3))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 2))
assert.is_equal("Pagina's context 2 plural 1", GetText.npgettext("Context 2", "Page", "Pages", 3))
end)
end)
describe("language with no plurals", function()
GetText.changeLang("none")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 3))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 3))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 2))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 3))
end)
end)
describe("language with complex plurals (Arabic)", function()
GetText.changeLang("ar")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("%1 dingen 2", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 items", GetText.ngettext("1 item", "%1 items", 5))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 0))
assert.is_equal("Pagina's", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina's plural 2", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina's plural 3", GetText.npgettext("Context 1", "Page", "Pages", 5))
assert.is_equal("Pagina's plural 4", GetText.npgettext("Context 1", "Page", "Pages", 99))
assert.is_equal("Pagina's context 2 plural 1", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina's context 2 plural 2", GetText.npgettext("Context 2", "Page", "Pages", 2))
assert.is_equal("Pages", GetText.npgettext("Context 2", "Page", "Pages", 5))
end)
end)
describe("language with complex plurals (Russian)", function()
GetText.changeLang("ru")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 dingen 2", GetText.ngettext("1 item", "%1 items", 5))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina's", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina's plural 2", GetText.npgettext("Context 1", "Page", "Pages", 5))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina's context 2 plural 1", GetText.npgettext("Context 2", "Page", "Pages", 2))
assert.is_equal("Pagina's context 2 plural 2", GetText.npgettext("Context 2", "Page", "Pages", 5))
end)
end)
-- This one's mainly to test fallback stuff. Russian/Polish are hard
-- to follow, so there we focus on algorithm correctness.
describe("language with many plurals", function()
GetText.changeLang("many")
it("gettext should ignore fuzzy strings", function()
assert.is_equal("Fuzzy", GetText("Fuzzy"))
end)
it("gettext should translate multiline string", function()
assert.is_equal("\nbericht", GetText("\nmessage"))
end)
it("ngettext should translate plurals", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 dingen 2", GetText.ngettext("1 item", "%1 items", 3))
end)
it("ngettext should fallback to default plural if not yet translated", function()
assert.is_equal("1 ding", GetText.ngettext("1 item", "%1 items", 1))
assert.is_equal("%1 dingen", GetText.ngettext("1 item", "%1 items", 2))
assert.is_equal("%1 dingen 2", GetText.ngettext("1 item", "%1 items", 3))
assert.is_equal("%1 items", GetText.ngettext("1 item", "%1 items", 4))
assert.is_equal("%1 items", GetText.ngettext("1 item", "%1 items", 5))
assert.is_equal("1 untranslated", GetText.ngettext("1 untranslated", "%1 untranslated", 1))
assert.is_equal("%1 untranslated", GetText.ngettext("1 untranslated", "%1 untranslated", 2))
assert.is_equal("%1 untranslated", GetText.ngettext("1 untranslated", "%1 untranslated", 3))
assert.is_equal("%1 untranslated", GetText.ngettext("1 untranslated", "%1 untranslated", 4))
assert.is_equal("%1 untranslated", GetText.ngettext("1 untranslated", "%1 untranslated", 5))
end)
it("pgettext should distinguish context", function()
assert.is_equal("Pagina's", GetText.pgettext("Style tweaks category", "Pages"))
assert.is_equal("Pages different context", GetText.pgettext("Other pages", "Pages"))
end)
it("npgettext should translate plurals and distinguish context", function()
assert.is_equal("Pagina", GetText.npgettext("Context 1", "Page", "Pages", 1))
assert.is_equal("Pagina's", GetText.npgettext("Context 1", "Page", "Pages", 2))
assert.is_equal("Pagina's plural 3", GetText.npgettext("Context 1", "Page", "Pages", 5))
assert.is_equal("Pagina context 2 plural 0", GetText.npgettext("Context 2", "Page", "Pages", 1))
assert.is_equal("Pagina's context 2 plural 1", GetText.npgettext("Context 2", "Page", "Pages", 2))
assert.is_equal("Pages", GetText.npgettext("Context 2", "Page", "Pages", 5))
end)
end)
end)
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