# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
from odoo.tools import mute_logger
from odoo.tools.translate import quote, unquote, xml_translate, html_translate
from odoo.tests.common import TransactionCase, BaseCase
from psycopg2 import IntegrityError


class TranslationToolsTestCase(BaseCase):
    def assertItemsEqual(self, a, b, msg=None):
        self.assertEqual(sorted(a), sorted(b), msg)

    def test_quote_unquote(self):

        def test_string(str):
            quoted = quote(str)
            #print "\n1:", repr(str)
            #print "2:", repr(quoted)
            unquoted = unquote("".join(quoted.split('"\n"')))
            #print "3:", repr(unquoted)
            self.assertEqual(str, unquoted)

        test_string("""test \nall kinds\n \n o\r
         \\\\ nope\n\n"
         """)

        # The ones with 1+ backslashes directly followed by
        # a newline or literal N can fail... we would need a
        # state-machine parser to handle these, but this would
        # be much slower so it's better to avoid them at the moment
        self.assertRaises(AssertionError, quote, """test \nall kinds\n\no\r
         \\\\nope\n\n"
         """)

    def test_translate_xml_base(self):
        """ Test xml_translate() without formatting elements. """
        terms = []
        source = """<form string="Form stuff">
                        <h1>Blah blah blah</h1>
                        Put some more text here
                        <field name="foo"/>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Form stuff', 'Blah blah blah', 'Put some more text here'])

    def test_translate_xml_text(self):
        """ Test xml_translate() on plain text. """
        terms = []
        source = "Blah blah blah"
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms, [source])

    def test_translate_xml_unicode(self):
        """ Test xml_translate() on plain text with unicode characters. """
        terms = []
        source = u"Un heureux évènement"
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms, [source])

    def test_translate_xml_text_entity(self):
        """ Test xml_translate() on plain text with HTML escaped entities. """
        terms = []
        source = "Blah&amp;nbsp;blah&amp;nbsp;blah"
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms, [source])

    def test_translate_xml_inline1(self):
        """ Test xml_translate() with formatting elements. """
        terms = []
        source = """<form string="Form stuff">
                        <h1>Blah <i>blah</i> blah</h1>
                        Put some <b>more text</b> here
                        <field name="foo"/>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Form stuff', 'Blah <i>blah</i> blah', 'Put some <b>more text</b> here'])

    def test_translate_xml_inline2(self):
        """ Test xml_translate() with formatting elements embedding other elements. """
        terms = []
        source = """<form string="Form stuff">
                        <b><h1>Blah <i>blah</i> blah</h1></b>
                        Put <em>some <b>more text</b></em> here
                        <field name="foo"/>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Form stuff', 'Blah <i>blah</i> blah', 'Put <em>some <b>more text</b></em> here'])

    def test_translate_xml_inline3(self):
        """ Test xml_translate() with formatting elements without actual text. """
        terms = []
        source = """<form string="Form stuff">
                        <div>
                            <span class="before"/>
                            <h1>Blah blah blah</h1>
                            <span class="after">
                                <i class="hack"/>
                            </span>
                        </div>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Form stuff', 'Blah blah blah'])

    def test_translate_xml_inline4(self):
        """ Test xml_translate() with inline elements with translated attrs only. """
        terms = []
        source = """<form string="Form stuff">
                        <div>
                            <label for="stuff"/>
                            <span class="fa fa-globe" title="Title stuff"/>
                        </div>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Form stuff', '<span class="fa fa-globe" title="Title stuff"/>'])

    def test_translate_xml_inline5(self):
        """ Test xml_translate() with inline elements with empty translated attrs only. """
        terms = []
        source = """<form string="Form stuff">
                        <div>
                            <label for="stuff"/>
                            <span class="fa fa-globe" title=""/>
                        </div>
                    </form>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms, ['Form stuff'])

    def test_translate_xml_t(self):
        """ Test xml_translate() with t-* attributes. """
        terms = []
        source = """<t t-name="stuff">
                        stuff before
                        <span t-field="o.name"/>
                        stuff after
                    </t>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['stuff before', 'stuff after'])

    def test_translate_xml_off(self):
        """ Test xml_translate() with attribute translate="off". """
        terms = []
        source = """<div>
                        stuff before
                        <div t-translation="off">Do not translate this</div>
                        stuff after
                    </div>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['stuff before', 'stuff after'])

    def test_translate_xml_attribute(self):
        """ Test xml_translate() with <attribute> elements. """
        terms = []
        source = """<field name="foo" position="attributes">
                        <attribute name="string">Translate this</attribute>
                        <attribute name="option">Do not translate this</attribute>
                    </field>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['Translate this'])

    def test_translate_xml_a(self):
        """ Test xml_translate() with <a> elements. """
        terms = []
        source = """<t t-name="stuff">
                        <ul class="nav navbar-nav">
                            <li class="nav-item">
                                <a class="nav-link oe_menu_leaf" href="/web#menu_id=42&amp;action=54">
                                    <span class="oe_menu_text">Blah</span>
                                </a>
                            </li>
                        </ul>
                    </t>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms,
            ['<span class="oe_menu_text">Blah</span>'])

    def test_translate_xml_with_namespace(self):
        """ Test xml_translate() on elements with namespaces. """
        terms = []
        # do not slit the long line below, otherwise the result will not match
        source = """<Invoice xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
                        <cbc:UBLVersionID t-esc="version_id"/>
                        <t t-foreach="[1, 2, 3, 4]" t-as="value">
                            Oasis <cac:Test t-esc="value"/>
                        </t>
                    </Invoice>"""
        result = xml_translate(terms.append, source)
        self.assertEqual(result, source)
        self.assertItemsEqual(terms, ['Oasis'])
        result = xml_translate(lambda term: term, source)
        self.assertEqual(result, source)

    def test_translate_xml_invalid_translations(self):
        """ Test xml_translate() with invalid translations. """
        source = """<form string="Form stuff">
                        <h1>Blah <i>blah</i> blah</h1>
                        Put some <b>more text</b> here
                        <field name="foo"/>
                    </form>"""
        translations = {
            "Put some <b>more text</b> here": "Mettre <b>plus de texte</i> ici",
        }
        expect = """<form string="Form stuff">
                        <h1>Blah <i>blah</i> blah</h1>
                        Mettre &lt;b&gt;plus de texte&lt;/i&gt; ici
                        <field name="foo"/>
                    </form>"""
        result = xml_translate(translations.get, source)
        self.assertEqual(result, expect)

    def test_translate_html(self):
        """ Test html_translate(). """
        source = """<blockquote>A <h2>B</h2> C</blockquote>"""
        result = html_translate(lambda term: term, source)
        self.assertEqual(result, source)

    def test_translate_html_i(self):
        """ Test xml_translate() and html_translate() with <i> elements. """
        source = """<p>A <i class="fa-check"></i> B</p>"""
        result = xml_translate(lambda term: term, source)
        self.assertEqual(result, """<p>A <i class="fa-check"/> B</p>""")
        result = html_translate(lambda term: term, source)
        self.assertEqual(result, source)


class TestTranslation(TransactionCase):

    def setUp(self):
        super(TestTranslation, self).setUp()
        lang = self.env['res.lang']._activate_lang('fr_FR')
        self.env.ref('base.module_base')._update_translations(['fr_FR'])
        self.customers = self.env['res.partner.category'].create({'name': 'Customers'})
        self.env['ir.translation'].create({
            'type': 'model',
            'name': 'res.partner.category,name',
            'module':'base',
            'lang': 'fr_FR',
            'res_id': self.customers.id,
            'value': 'Clients',
            'state': 'translated',
        })

    def test_101_create_translated_record(self):
        category = self.customers.with_context({})
        self.assertEqual(category.name, 'Customers', "Error in basic name_get")

        category_fr = category.with_context({'lang': 'fr_FR'})
        self.assertEqual(category_fr.name, 'Clients', "Translation not found")

    def test_102_duplicate_record(self):
        category = self.customers.with_context({'lang': 'fr_FR'}).copy()

        category_no = category.with_context({})
        self.assertEqual(category_no.name, 'Customers', "Duplication did not set untranslated value")

        category_fr = category.with_context({'lang': 'fr_FR'})
        self.assertEqual(category_fr.name, 'Clients', "Did not found translation for initial value")

        translation_fr = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', category.id),
            ('lang', '=', 'fr_FR'),
        ])
        self.assertEqual(translation_fr.src, 'Customers', "Did not set English version as source")

    def test_103_duplicate_record_fr(self):
        category = self.customers.with_context({'lang': 'fr_FR'}).copy({'name': 'Clients (copie)'})

        category_no = category.with_context({})
        self.assertEqual(category_no.name, 'Clients (copie)', "Duplication should set untranslated value")

        category_fr = category.with_context({'lang': 'fr_FR'})
        self.assertEqual(category_fr.name, 'Clients (copie)', "Did not used default value for translated value")

        translation_fr = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', category.id),
            ('lang', '=', 'fr_FR'),
        ])
        self.assertEqual(translation_fr.src, 'Clients (copie)', "Did not set new name as source")

    def test_104_orderby_translated_field(self):
        """ Test search ordered by a translated field. """
        # create a category with a French translation
        padawans = self.env['res.partner.category'].create({'name': 'Padawans'})
        padawans_fr = padawans.with_context(lang='fr_FR')
        padawans_fr.write({'name': 'Apprentis'})
        # search for categories, and sort them by (translated) name
        categories = padawans_fr.search([('id', 'in', [self.customers.id, padawans.id])], order='name')
        self.assertEqual(categories.ids, [padawans.id, self.customers.id],
            "Search ordered by translated name should return Padawans (Apprentis) before Customers (Clients)")

    def test_105_duplicated_translation(self):
        """ Test synchronizing translations with duplicated source """
        # create a category with a French translation
        padawans = self.env['res.partner.category'].create({'name': 'Padawan'})
        self.env['ir.translation'].create({
            'type': 'model',
            'name': 'res.partner.category,name',
            'module':'base',
            'lang': 'fr_FR',
            'res_id': padawans.id,
            'value': 'Apprenti',
            'state': 'translated',
        })
        # change name and insert a duplicate manually
        padawans.write({'name': 'Padawans'})
        with self.assertRaises(IntegrityError), mute_logger('odoo.sql_db'):
            with self.env.cr.savepoint():
                self.env['ir.translation'].create({
                    'type': 'model',
                    'name': 'res.partner.category,name',
                    'module':'base',
                    'lang': 'fr_FR',
                    'res_id': padawans.id,
                    'value': 'Apprentis',
                    'state': 'translated',
                })
        self.env['ir.translation'].translate_fields('res.partner.category', padawans.id, 'name')
        translations = self.env['ir.translation'].search([
            ('res_id', '=', padawans.id), ('name', '=', 'res.partner.category,name'), ('lang', '=', 'fr_FR'),
        ])
        self.assertEqual(len(translations), 1, "Translations were not duplicated after `translate_fields` call")
        self.assertEqual(translations.value, "Apprenti", "The first translation must stay")

    def test_106_en_us_translation(self):
        """ Test synchronizing translations with duplicated source """
        # create a category with a French translation
        cheese = self.env['res.partner.category'].create({'name': 'Cheese'})

        self.env['ir.translation'].translate_fields('res.partner.category', cheese.id, 'name')

        translations = self.env['ir.translation'].search([('name', '=', 'res.partner.category,name'), ('res_id', '=', cheese.id)], order='lang')
        self.assertEqual(len(translations), 2)
        self.assertRecordValues(translations,
            [{'lang': 'en_US', 'src': 'Cheese', 'value': ''},
             {'lang': 'fr_FR', 'src': 'Cheese', 'value': ''}])

        # Translate in both language
        translations[0].value = 'The Cheese'
        translations[1].value = 'Fromage'

        # lang=None bypass translation system
        self.assertEqual(cheese.with_context(lang=None).name, 'Cheese')
        self.assertEqual(cheese.with_context(lang='fr_FR').name, 'Fromage')
        self.assertEqual(cheese.with_context(lang='en_US').name, 'The Cheese')
        cheese.flush()

        # set a new master value
        cheese.with_context(lang='en_US').write({'name': 'Delicious Cheese'})

        # every src must be updated
        self.assertEqual(cheese.with_context(lang=None).name, 'Delicious Cheese')
        self.assertRecordValues(translations,
            [{'lang': 'en_US', 'src': 'Delicious Cheese', 'value': 'Delicious Cheese'},
             {'lang': 'fr_FR', 'src': 'Delicious Cheese', 'value': 'Fromage'}])

        self.assertEqual(cheese.with_context(lang=None).name, 'Delicious Cheese')
        self.assertEqual(cheese.with_context(lang='fr_FR').name, 'Fromage')
        self.assertEqual(cheese.with_context(lang='en_US').name, 'Delicious Cheese')

    def test_107_duplicate_record_en(self):
        category = self.customers.with_context({'lang': 'en_US'}).copy()

        category_no = category.with_context({})
        self.assertEqual(category_no.name, 'Customers', "Duplication did not set untranslated value")

        category_fr = category.with_context({'lang': 'fr_FR'})
        self.assertEqual(category_fr.name, 'Clients', "Did not found translation for initial value")

        translation_fr = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', category.id),
            ('lang', '=', 'fr_FR'),
        ])
        self.assertEqual(translation_fr.src, 'Customers', "Did not set English version as source")

class TestTranslationWrite(TransactionCase):

    def setUp(self):
        super().setUp()
        self.category = self.env['res.partner.category'].create({'name': 'Reblochon'})

    def test_01_en(self):
        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('en_US', 'English (US)')], langs, "Test did not started with expected languages")

        self.category.with_context(lang='en_US').write({'name': 'English Name'})
        name = self.category.with_context(lang=None).read(['name'])
        self.assertEqual(name[0]['name'], "English Name", "Reference field not updated")
        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', self.category.id),
            ('lang', '=', 'en_US'),
        ])
        self.assertEqual(len(translations), 0, "No English translation should be created when writing in English")

    def test_02_en_translated(self):
        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('en_US', 'English (US)')], langs, "Test did not started with expected languages")
        translation = self.env['ir.translation'].create({
            'type': 'model',
            'name': 'res.partner.category,name',
            'lang': 'en_US',
            'res_id': self.category.id,
            'src': 'Reblochon',
            'value': 'Translated Name',
            'state': 'translated',
        })

        self.category.with_context(lang='en_US').write({'name': 'English Name'})
        translation_value = translation.read(['value'])
        self.assertEqual(translation_value[0]['value'], "English Name", "Existing translation was not updated")

        source_name = self.category.with_context(lang=None).read(['name'])
        self.assertEqual(source_name[0]['name'], "English Name", "Reference field not updated")

    def test_03_fr_single(self):
        self.env['res.lang']._activate_lang('fr_FR')
        self.env['res.partner'].with_context(active_test=False).search([]).write({'lang': 'fr_FR'})
        self.env.ref('base.lang_en').active = False

        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('fr_FR', 'French / Français')], langs, "Test did not started with expected languages")

        self.category.with_context(lang='fr_FR').write({'name': 'French Name'})
        source_name = self.category.with_context(lang=None).read(['name'])
        self.assertEqual(source_name[0]['name'], "French Name", "Reference field not updated")
        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', self.category.id),
            ('lang', '=', 'fr_FR'),
        ])
        self.assertEqual(len(translations), 0, "No French translation should be created when writing in French")

    def test_04_fr_multi(self):
        self.env['res.lang']._activate_lang('fr_FR')

        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('en_US', 'English (US)'), ('fr_FR', 'French / Français')], langs,
            "Test did not started with expected languages")
        self.env['ir.translation'].create({
            'type': 'model',
            'name': 'res.partner.category,name',
            'lang': 'en_US',
            'res_id': self.category.id,
            'src': 'Reblochon',
            'value': 'Translated Name',
            'state': 'translated',
        })

        self.category.with_context(lang='fr_FR').write({'name': 'French Name'})
        self.category.with_context(lang='en_US').write({'name': 'English Name'})
        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', self.category.id),
        ], order='lang')
        self.assertRecordValues(translations, [
            {'src': 'English Name', 'value': 'English Name', 'lang': 'en_US'},
            {'src': 'English Name', 'value': 'French Name', 'lang': 'fr_FR'}
        ])

    def test_04_fr_multi_no_en(self):
        self.env['res.lang']._activate_lang('fr_FR')
        self.env['res.lang']._activate_lang('es_ES')
        self.env['res.partner'].with_context(active_test=False).search([]).write({'lang': 'fr_FR'})
        self.env.ref('base.lang_en').active = False

        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('fr_FR', 'French / Français'), ('es_ES', 'Spanish / Español')], langs,
                         "Test did not start with the expected languages")

        self.category.with_context(lang='fr_FR').write({'name': 'French Name'})
        self.category.with_context(lang='es_ES').write({'name': 'Spanish Name'})
        self.category.with_context(lang=None).write({'name': 'None Name'})

        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.partner.category,name'),
            ('res_id', '=', self.category.id),
        ], order='lang')
        self.assertRecordValues(translations, [
            {'src': 'None Name', 'value': 'Spanish Name', 'lang': 'es_ES'},
            {'src': 'None Name', 'value': 'French Name', 'lang': 'fr_FR'},
        ])

    def test_05_remove_multi_empty_string(self):
        self._test_05_remove_multi("")

    def test_05_remove_multi_false(self):
        self._test_05_remove_multi(False)

    def _test_05_remove_multi(self, empty_value):
        self.env['res.lang']._activate_lang('fr_FR')

        langs = self.env['res.lang'].get_installed()
        self.assertEqual([('en_US', 'English (US)'), ('fr_FR', 'French / Français')], langs,
            "Test did not started with expected languages")

        belgium = self.env.ref('base.be')
        # vat_label is translatable and not required
        belgium.with_context(lang='en_US').write({'vat_label': 'VAT'})
        belgium.with_context(lang='fr_FR').write({'vat_label': 'TVA'})

        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.country,vat_label'),
            ('res_id', '=', belgium.id),
        ])
        self.assertEqual(len(translations), 2, "Translations are not created")

        # remove the value
        belgium.with_context(lang='fr_FR').write({'vat_label': empty_value})
        # should recover the initial value from db
        self.assertFalse(
            belgium.with_context(lang='fr_FR').vat_label,
            "Value was not reset"
        )
        self.assertFalse(
            belgium.with_context(lang='en_US').vat_label,
            "Value was not reset in other languages"
        )
        self.assertFalse(
            belgium.with_context(lang=None).vat_label,
            "Value was not reset on the field model"
        )

        translations = self.env['ir.translation'].search([
            ('name', '=', 'res.country,vat_label'),
            ('res_id', '=', belgium.id),
        ])
        self.assertEqual(len(translations), 0, "Translations were not removed")

        # simulate remove the English translation in the interface
        belgium.with_context(lang='fr_FR').write({'vat_label': 'TVA'})
        belgium.with_context(lang='en_US').write({'vat_label': 'VAT'})
        self.env['ir.translation'].translate_fields('res.country', belgium.id, 'vat_label')
        en_translation = self.env['ir.translation'].search([
            ('name', '=', 'res.country,vat_label'),
            ('res_id', '=', belgium.id),
            ('lang', '=', 'en_US'),
        ])
        en_translation.write({'value': ''})

        # should recover the initial value from db
        self.assertEqual(
            "TVA", belgium.with_context(lang='fr_FR').vat_label,
            "French translation was not kept"
        )
        self.assertEqual(
            "VAT", belgium.with_context(lang='en_US').vat_label,
            "Did not fallback to source when reset"
        )


    def test_field_selection(self):
        """ Test translations of field selections. """
        field = self.env['ir.model']._fields['state']
        self.assertEqual([key for key, _ in field.selection], ['manual', 'base'])

        ir_field = self.env['ir.model.fields']._get('ir.model', 'state')
        ir_field = ir_field.with_context(lang='fr_FR')
        ir_field.selection_ids[0].name = 'Custo'
        ir_field.selection_ids[1].name = 'Pas touche!'

        fg = self.env['ir.model'].fields_get(['state'])
        self.assertEqual(fg['state']['selection'], field.selection)

        fg = self.env['ir.model'].with_context(lang='fr_FR').fields_get(['state'])
        self.assertEqual(fg['state']['selection'],
                         [('manual', 'Custo'), ('base', 'Pas touche!')])


class TestXMLTranslation(TransactionCase):
    def setUp(self):
        super(TestXMLTranslation, self).setUp()
        self.env['res.lang']._activate_lang('fr_FR')
        self.env['res.lang']._activate_lang('nl_NL')
        self.env.ref('base.module_base')._update_translations(['fr_FR', 'nl_NL'])

    def create_view(self, archf, terms, **kwargs):
        view = self.env['ir.ui.view'].create({
            'name': 'test',
            'model': 'res.partner',
            'arch': archf % terms,
        })
        # DLE P70: `_sync_terms_translations`, which delete translations for which there is no value, is called sooner than before
        # because it's called in `_write`, which is called by `flush`, which is called by the `search`.
        # `arch_db` is in `_write` instead of `create` because `arch_db` is the inverse of `arch`.
        # We need to flush `arch_db` before creating the translations otherwise the translation for which there is no value will be deleted,
        # while the `test_sync_update` specifically needs empty translations
        view.flush()
        for lang, trans_terms in kwargs.items():
            for src, val in zip(terms, trans_terms):
                self.env['ir.translation'].create({
                    'type': 'model_terms',
                    'name': 'ir.ui.view,arch_db',
                    'lang': lang,
                    'res_id': view.id,
                    'src': src,
                    'value': val,
                    'state': 'translated',
                })
        return view

    def test_copy(self):
        """ Create a simple view, fill in translations, and copy it. """
        archf = '<form string="%s"><div>%s</div><div>%s</div></form>'
        terms_en = ('Knife', 'Fork', 'Spoon')
        terms_fr = ('Couteau', 'Fourchette', 'Cuiller')
        view0 = self.create_view(archf, terms_en, fr_FR=terms_fr)

        env_en = self.env(context={})
        env_fr = self.env(context={'lang': 'fr_FR'})

        # check translated field
        self.assertEqual(view0.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view0.with_env(env_fr).arch_db, archf % terms_fr)

        # copy without lang
        view1 = view0.with_env(env_en).copy({})
        self.assertEqual(view1.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view1.with_env(env_fr).arch_db, archf % terms_fr)

        # copy with lang='fr_FR'
        view2 = view0.with_env(env_fr).copy({})
        self.assertEqual(view2.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view2.with_env(env_fr).arch_db, archf % terms_fr)

        # copy with lang='fr_FR' and translate=html_translate
        self.patch(type(self.env['ir.ui.view']).arch_db, 'translate', html_translate)
        view3 = view0.with_env(env_fr).copy({})
        self.assertEqual(view3.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view3.with_env(env_fr).arch_db, archf % terms_fr)

    def test_spaces(self):
        """ Create translations where value has surrounding spaces. """
        archf = '<form string="%s"><div>%s</div><div>%s</div></form>'
        terms_en = ('Knife', 'Fork', 'Spoon')
        terms_fr = (' Couteau', 'Fourchette ', ' Cuiller ')
        self.create_view(archf, terms_en, fr_FR=terms_fr)

    def test_sync(self):
        """ Check translations after minor change in source terms. """
        archf = '<form string="X">%s</form>'
        terms_en = ('Bread and cheeze',)
        terms_fr = ('Pain et fromage',)
        terms_nl = ('Brood and kaas',)
        view = self.create_view(archf, terms_en, en_US=terms_en, fr_FR=terms_fr, nl_NL=terms_nl)

        env_nolang = self.env(context={})
        env_en = self.env(context={'lang': 'en_US'})
        env_fr = self.env(context={'lang': 'fr_FR'})
        env_nl = self.env(context={'lang': 'nl_NL'})

        self.assertEqual(view.with_env(env_nolang).arch_db, archf % terms_en)
        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view.with_env(env_fr).arch_db, archf % terms_fr)
        self.assertEqual(view.with_env(env_nl).arch_db, archf % terms_nl)

        # modify source term in view (fixed type in 'cheeze')
        terms_en = ('Bread and cheese',)
        view.with_env(env_en).write({'arch_db': archf % terms_en})

        # check whether translations have been synchronized
        self.assertEqual(view.with_env(env_nolang).arch_db, archf % terms_en)
        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view.with_env(env_fr).arch_db, archf % terms_fr)
        self.assertEqual(view.with_env(env_nl).arch_db, archf % terms_nl)

        view = self.create_view(archf, terms_fr, en_US=terms_en, fr_FR=terms_fr, nl_NL=terms_nl)
        # modify source term in view in another language with close term
        new_terms_fr = ('Pains et fromage',)
        view.with_env(env_fr).write({'arch_db': archf % new_terms_fr})

        # check whether translations have been synchronized
        self.assertEqual(view.with_env(env_nolang).arch_db, archf % new_terms_fr)
        self.assertEqual(view.with_env(env_en).arch_db, archf % terms_en)
        self.assertEqual(view.with_env(env_fr).arch_db, archf % new_terms_fr)
        self.assertEqual(view.with_env(env_nl).arch_db, archf % terms_nl)

    def test_sync_update(self):
        """ Check translations after major changes in source terms. """
        archf = '<form string="X"><div>%s</div><div>%s</div></form>'
        terms_src = ('Subtotal', 'Subtotal:')
        terms_en = ('', 'Sub total:')
        view = self.create_view(archf, terms_src, en_US=terms_en)

        translations = self.env['ir.translation'].search([
            ('type', '=', 'model_terms'),
            ('name', '=', "ir.ui.view,arch_db"),
            ('res_id', '=', view.id),
        ])
        self.assertEqual(len(translations), 2)

        # modifying the arch should sync existing translations without errors
        new_arch = archf % ('Subtotal', 'Subtotal:<br/>')
        view.write({"arch_db": new_arch})

        translations = self.env['ir.translation'].search([
            ('type', '=', 'model_terms'),
            ('name', '=', "ir.ui.view,arch_db"),
            ('res_id', '=', view.id),
        ])
        # 'Subtotal' being src==value, it will be discared
        # 'Subtotal:' will be discarded as it match 'Subtotal' instead of 'Subtotal:<br/>'
        self.assertEqual(len(translations), 0)

    def test_cache_consistency(self):
        view = self.env["ir.ui.view"].create({
            "name": "test_translate_xml_cache_invalidation",
            "model": "res.partner",
            "arch": "<form><b>content</b></form>",
        })
        view_fr = view.with_context({"lang": "fr_FR"})
        self.assertIn("<b>", view.arch_db)
        self.assertIn("<b>", view_fr.arch_db)

        # write with no lang, and check consistency in other languages
        view.write({"arch_db": "<form><i>content</i></form>"})
        self.assertIn("<i>", view.arch_db)
        self.assertIn("<i>", view_fr.arch_db)