test_intl.py

"""Test message patching for internationalization purposes.

Runs the text builder in the test root.
"""

import os
import re
import time

import pygments
import pytest
from babel.messages import mofile, pofile
from babel.messages.catalog import Catalog
from docutils import nodes

from sphinx import locale
from sphinx.testing.util import (
    assert_node,
    assert_not_re_search,
    assert_re_search,
    assert_startswith,
    etree_parse,
    path,
    strip_escseq,
)

sphinx_intl = pytest.mark.sphinx(
    testroot='intl',
    confoverrides={
        'language': 'xx', 'locale_dirs': ['.'],
        'gettext_compact': False,
    },
)


def read_po(pathname):
    with pathname.open(encoding='utf-8') as f:
        return pofile.read_po(f)


def write_mo(pathname, po):
    with pathname.open('wb') as f:
        return mofile.write_mo(f, po)


@pytest.fixture(autouse=True)
def _setup_intl(app_params):
    srcdir = path(app_params.kwargs['srcdir'])
    for dirpath, _dirs, files in os.walk(srcdir):
        dirpath = path(dirpath)
        for f in [f for f in files if f.endswith('.po')]:
            po = dirpath / f
            mo = srcdir / 'xx' / 'LC_MESSAGES' / (
                os.path.relpath(po[:-3], srcdir) + '.mo')
            if not mo.parent.exists():
                mo.parent.makedirs()

            if not mo.exists() or mo.stat().st_mtime < po.stat().st_mtime:
                # compile .mo file only if needed
                write_mo(mo, read_po(po))


@pytest.fixture(autouse=True)
def _info(app):
    yield
    print('# language:', app.config.language)
    print('# locale_dirs:', app.config.locale_dirs)


def elem_gettexts(elem):
    return [_f for _f in [s.strip() for s in elem.itertext()] if _f]


def elem_getref(elem):
    return elem.attrib.get('refid') or elem.attrib.get('refuri')


def assert_elem(elem, texts=None, refs=None, names=None):
    if texts is not None:
        _texts = elem_gettexts(elem)
        assert _texts == texts
    if refs is not None:
        _refs = [elem_getref(x) for x in elem.findall('reference')]
        assert _refs == refs
    if names is not None:
        _names = elem.attrib.get('names').split()
        assert _names == names


def assert_count(expected_expr, result, count):
    find_pair = (expected_expr, result)
    assert len(re.findall(*find_pair)) == count, find_pair


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_emit_warnings(app, warning):
    app.build()
    # test warnings in translation
    warnings = getwarning(warning)
    warning_expr = ('.*/warnings.txt:4:<translated>:1: '
                    'WARNING: Inline literal start-string without end-string.\n')
    assert_re_search(warning_expr, warnings)


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_warning_node(app):
    app.build()
    # test warnings in translation
    result = (app.outdir / 'warnings.txt').read_text(encoding='utf8')
    expect = ("3. I18N WITH REST WARNINGS"
              "\n**************************\n"
              "\nLINE OF >>``<<BROKEN LITERAL MARKUP.\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
@pytest.mark.xfail(os.name != 'posix', reason="Not working on windows")
def test_text_title_underline(app):
    app.build()
    # --- simple translation; check title underlines
    result = (app.outdir / 'bom.txt').read_text(encoding='utf8')
    expect = ("2. Datei mit UTF-8"
              "\n******************\n"  # underline matches new translation
              "\nThis file has umlauts: äöü.\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_subdirs(app):
    app.build()
    # --- check translation in subdirs
    result = (app.outdir / 'subdir' / 'index.txt').read_text(encoding='utf8')
    assert_startswith(result, "1. subdir contents\n******************\n")


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_inconsistency_warnings(app, warning):
    app.build()
    # --- check warnings for inconsistency in number of references
    result = (app.outdir / 'refs_inconsistency.txt').read_text(encoding='utf8')
    expect = ("8. I18N WITH REFS INCONSISTENCY"
              "\n*******************************\n"
              "\n* FOR CITATION [ref3].\n"
              "\n* reference FOR reference.\n"
              "\n* ORPHAN REFERENCE: I18N WITH REFS INCONSISTENCY.\n"
              "\n[1] THIS IS A AUTO NUMBERED FOOTNOTE.\n"
              "\n[ref2] THIS IS A CITATION.\n"
              "\n[100] THIS IS A NUMBERED FOOTNOTE.\n")
    assert result == expect

    warnings = getwarning(warning)
    warning_fmt = ('.*/refs_inconsistency.txt:\\d+: '
                   'WARNING: inconsistent %(reftype)s in translated message.'
                   ' original: %(original)s, translated: %(translated)s\n')
    expected_warning_expr = (
        warning_fmt % {
            'reftype': 'footnote references',
            'original': "\\['\\[#\\]_'\\]",
            'translated': "\\[\\]",
        } +
        warning_fmt % {
            'reftype': 'footnote references',
            'original': "\\['\\[100\\]_'\\]",
            'translated': "\\[\\]",
        } +
        warning_fmt % {
            'reftype': 'references',
            'original': "\\['reference_'\\]",
            'translated': "\\['reference_', 'reference_'\\]",
        } +
        warning_fmt % {
            'reftype': 'references',
            'original': "\\[\\]",
            'translated': "\\['`I18N WITH REFS INCONSISTENCY`_'\\]",
        })
    assert_re_search(expected_warning_expr, warnings)

    expected_citation_warning_expr = (
        '.*/refs_inconsistency.txt:\\d+: WARNING: Citation \\[ref2\\] is not referenced.\n' +
        '.*/refs_inconsistency.txt:\\d+: WARNING: citation not found: ref3')
    assert_re_search(expected_citation_warning_expr, warnings)


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_noqa(app, warning):
    app.build()
    result = (app.outdir / 'noqa.txt').read_text(encoding='utf8')
    expect = r"""FIRST SECTION
*************

TRANSLATED TEXT WITHOUT REFERENCE.

TEST noqa WHITESPACE INSENSITIVITY.

"#noqa" IS ESCAPED AT THE END OF THIS STRING. #noqa


NEXT SECTION WITH PARAGRAPH TO TEST BARE noqa
*********************************************

Some text, again referring to the section: NEXT SECTION WITH PARAGRAPH
TO TEST BARE noqa.
"""
    assert result == expect
    assert "next-section" not in getwarning(warning)


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_literalblock_warnings(app, warning):
    app.build()
    # --- check warning for literal block
    result = (app.outdir / 'literalblock.txt').read_text(encoding='utf8')
    expect = ("9. I18N WITH LITERAL BLOCK"
              "\n**************************\n"
              "\nCORRECT LITERAL BLOCK:\n"
              "\n   this is"
              "\n   literal block\n"
              "\nMISSING LITERAL BLOCK:\n"
              "\n<SYSTEM MESSAGE:")
    assert_startswith(result, expect)

    warnings = getwarning(warning)
    expected_warning_expr = ('.*/literalblock.txt:\\d+: '
                             'WARNING: Literal block expected; none found.')
    assert_re_search(expected_warning_expr, warnings)


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_definition_terms(app):
    app.build()
    # --- definition terms: regression test for #975, #2198, #2205
    result = (app.outdir / 'definition_terms.txt').read_text(encoding='utf8')
    expect = ("13. I18N WITH DEFINITION TERMS"
              "\n******************************\n"
              "\nSOME TERM"
              "\n   THE CORRESPONDING DEFINITION\n"
              "\nSOME *TERM* WITH LINK"
              "\n   THE CORRESPONDING DEFINITION #2\n"
              "\nSOME **TERM** WITH : CLASSIFIER1 : CLASSIFIER2"
              "\n   THE CORRESPONDING DEFINITION\n"
              "\nSOME TERM WITH : CLASSIFIER[]"
              "\n   THE CORRESPONDING DEFINITION\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_glossary_term(app, warning):
    app.build()
    # --- glossary terms: regression test for #1090
    result = (app.outdir / 'glossary_terms.txt').read_text(encoding='utf8')
    expect = (r"""18. I18N WITH GLOSSARY TERMS
****************************

SOME NEW TERM
   THE CORRESPONDING GLOSSARY

SOME OTHER NEW TERM
   THE CORRESPONDING GLOSSARY #2

LINK TO *SOME NEW TERM*.

TRANSLATED GLOSSARY SHOULD BE SORTED BY TRANSLATED TERMS:

TRANSLATED TERM XXX
   DEFINE XXX

TRANSLATED TERM YYY
   DEFINE YYY

TRANSLATED TERM ZZZ
VVV
   DEFINE ZZZ
""")
    assert result == expect
    warnings = getwarning(warning)
    assert 'term not in glossary' not in warnings


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_glossary_term_inconsistencies(app, warning):
    app.build()
    # --- glossary term inconsistencies: regression test for #1090
    result = (app.outdir / 'glossary_terms_inconsistency.txt').read_text(encoding='utf8')
    expect = ("19. I18N WITH GLOSSARY TERMS INCONSISTENCY"
              "\n******************************************\n"
              "\n1. LINK TO *SOME NEW TERM*.\n")
    assert result == expect

    warnings = getwarning(warning)
    expected_warning_expr = (
        '.*/glossary_terms_inconsistency.txt:\\d+: '
        'WARNING: inconsistent term references in translated message.'
        " original: \\[':term:`Some term`', ':term:`Some other term`'\\],"
        " translated: \\[':term:`SOME NEW TERM`'\\]\n")
    assert_re_search(expected_warning_expr, warnings)


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_section(app):
    app.build()
    # --- section
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'section.po')
    actual = read_po(app.outdir / 'section.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_section(app):
    app.build()
    # --- section
    result = (app.outdir / 'section.txt').read_text(encoding='utf8')
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'section.po')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.string in result


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_seealso(app):
    app.build()
    # --- seealso
    result = (app.outdir / 'seealso.txt').read_text(encoding='utf8')
    expect = ("12. I18N WITH SEEALSO"
              "\n*********************\n"
              "\nSee also: SHORT TEXT 1\n"
              "\nSee also: LONG TEXT 1\n"
              "\nSee also:\n"
              "\n  SHORT TEXT 2\n"
              "\n  LONG TEXT 2\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_figure_captions(app):
    app.build()
    # --- figure captions: regression test for #940
    result = (app.outdir / 'figure.txt').read_text(encoding='utf8')
    expect = ("14. I18N WITH FIGURE CAPTION"
              "\n****************************\n"
              "\n   [image]MY CAPTION OF THE FIGURE\n"
              "\n   MY DESCRIPTION PARAGRAPH1 OF THE FIGURE.\n"
              "\n   MY DESCRIPTION PARAGRAPH2 OF THE FIGURE.\n"
              "\n"
              "\n14.1. FIGURE IN THE BLOCK"
              "\n=========================\n"
              "\nBLOCK\n"
              "\n      [image]MY CAPTION OF THE FIGURE\n"
              "\n      MY DESCRIPTION PARAGRAPH1 OF THE FIGURE.\n"
              "\n      MY DESCRIPTION PARAGRAPH2 OF THE FIGURE.\n"
              "\n"
              "\n"
              "14.2. IMAGE URL AND ALT\n"
              "=======================\n"
              "\n"
              "[image: I18N -> IMG][image]\n"
              "\n"
              "   [image: IMG -> I18N][image]\n"
              "\n"
              "\n"
              "14.3. IMAGE ON SUBSTITUTION\n"
              "===========================\n"
              "\n"
              "\n"
              "14.4. IMAGE UNDER NOTE\n"
              "======================\n"
              "\n"
              "Note:\n"
              "\n"
              "  [image: i18n under note][image]\n"
              "\n"
              "     [image: img under note][image]\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_rubric(app):
    app.build()
    # --- rubric: regression test for pull request #190
    result = (app.outdir / 'rubric.txt').read_text(encoding='utf8')
    expect = ("I18N WITH RUBRIC"
              "\n****************\n"
              "\n-[ RUBRIC TITLE ]-\n"
              "\n"
              "\nRUBRIC IN THE BLOCK"
              "\n===================\n"
              "\nBLOCK\n"
              "\n   -[ RUBRIC TITLE ]-\n")
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_docfields(app):
    app.build()
    # --- docfields
    result = (app.outdir / 'docfields.txt').read_text(encoding='utf8')
    expect = ("21. I18N WITH DOCFIELDS"
              "\n***********************\n"
              "\nclass Cls1\n"
              "\n   Parameters:"
              "\n      **param** -- DESCRIPTION OF PARAMETER param\n"
              "\nclass Cls2\n"
              "\n   Parameters:"
              "\n      * **foo** -- DESCRIPTION OF PARAMETER foo\n"
              "\n      * **bar** -- DESCRIPTION OF PARAMETER bar\n"
              "\nclass Cls3(values)\n"
              "\n   Raises:"
              "\n      **ValueError** -- IF THE VALUES ARE OUT OF RANGE\n"
              "\nclass Cls4(values)\n"
              "\n   Raises:"
              "\n      * **TypeError** -- IF THE VALUES ARE NOT VALID\n"
              "\n      * **ValueError** -- IF THE VALUES ARE OUT OF RANGE\n"
              "\nclass Cls5\n"
              "\n   Returns:"
              '\n      A NEW "Cls3" INSTANCE\n')
    assert result == expect


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_admonitions(app):
    app.build()
    # --- admonitions
    # #1206: gettext did not translate admonition directive's title
    # seealso: https://docutils.sourceforge.io/docs/ref/rst/directives.html#admonitions
    result = (app.outdir / 'admonitions.txt').read_text(encoding='utf8')
    directives = (
        "attention", "caution", "danger", "error", "hint",
        "important", "note", "tip", "warning", "admonition")
    for d in directives:
        assert d.upper() + " TITLE" in result
        assert d.upper() + " BODY" in result

    # for #4938 `1. ` prefixed admonition title
    assert "1. ADMONITION TITLE" in result


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_toctree(app):
    app.build()
    # --- toctree (index.rst)
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'index.po')
    actual = read_po(app.outdir / 'index.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]
    # --- toctree (toctree.rst)
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'toctree.po')
    actual = read_po(app.outdir / 'toctree.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_table(app):
    app.build()
    # --- toctree
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'table.po')
    actual = read_po(app.outdir / 'table.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_table(app):
    app.build()
    # --- toctree
    result = (app.outdir / 'table.txt').read_text(encoding='utf8')
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'table.po')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.string in result


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_toctree(app):
    app.build()
    # --- toctree (index.rst)
    # Note: index.rst contains contents that is not shown in text.
    result = (app.outdir / 'index.txt').read_text(encoding='utf8')
    assert 'CONTENTS' in result
    assert 'TABLE OF CONTENTS' in result
    # --- toctree (toctree.rst)
    result = (app.outdir / 'toctree.txt').read_text(encoding='utf8')
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'toctree.po')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.string in result


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_topic(app):
    app.build()
    # --- topic
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'topic.po')
    actual = read_po(app.outdir / 'topic.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_topic(app):
    app.build()
    # --- topic
    result = (app.outdir / 'topic.txt').read_text(encoding='utf8')
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'topic.po')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.string in result


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_definition_terms(app):
    app.build()
    # --- definition terms: regression test for #2198, #2205
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'definition_terms.po')
    actual = read_po(app.outdir / 'definition_terms.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_glossary_terms(app, warning):
    app.build()
    # --- glossary terms: regression test for #1090
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'glossary_terms.po')
    actual = read_po(app.outdir / 'glossary_terms.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]
    warnings = warning.getvalue().replace(os.sep, '/')
    assert 'term not in glossary' not in warnings


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_glossary_term_inconsistencies(app):
    app.build()
    # --- glossary term inconsistencies: regression test for #1090
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'glossary_terms_inconsistency.po')
    actual = read_po(app.outdir / 'glossary_terms_inconsistency.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_literalblock(app):
    app.build()
    # --- gettext builder always ignores ``only`` directive
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'literalblock.po')
    actual = read_po(app.outdir / 'literalblock.pot')
    for expect_msg in [m for m in expect if m.id]:
        if len(expect_msg.id.splitlines()) == 1:
            # compare translations only labels
            assert expect_msg.id in [m.id for m in actual if m.id]
        else:
            pass  # skip code-blocks and literalblocks


@sphinx_intl
@pytest.mark.sphinx('gettext')
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_gettext_buildr_ignores_only_directive(app):
    app.build()
    # --- gettext builder always ignores ``only`` directive
    expect = read_po(app.srcdir / 'xx' / 'LC_MESSAGES' / 'only.po')
    actual = read_po(app.outdir / 'only.pot')
    for expect_msg in [m for m in expect if m.id]:
        assert expect_msg.id in [m.id for m in actual if m.id]


@sphinx_intl
@pytest.mark.test_params(shared_result='test_intl_gettext')
def test_node_translated_attribute(app):
    app.build()

    expected = 23
    translated_nodes = 0

    doctree = app.env.get_doctree('admonitions')
    for node in doctree.traverse():
        if hasattr(node, 'get') and node.get('translated', False):
            translated_nodes += 1
    assert translated_nodes == expected


@sphinx_intl
# use individual shared_result directory to avoid "incompatible doctree" error
@pytest.mark.sphinx(testroot='builder-gettext-dont-rebuild-mo')
def test_gettext_dont_rebuild_mo(make_app, app_params):
    # --- don't rebuild by .mo mtime
    def get_update_targets(app_):
        app_.env.find_files(app_.config, app_.builder)
        added, changed, removed = app_.env.get_outdated_files(config_changed=False)
        return added, changed, removed

    args, kwargs = app_params

    # phase1: build document with non-gettext builder and generate mo file in srcdir
    app0 = make_app('dummy', *args, **kwargs)
    app0.build()
    time.sleep(0.01)
    assert (app0.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').exists()
    # Since it is after the build, the number of documents to be updated is 0
    update_targets = get_update_targets(app0)
    assert update_targets[1] == set(), update_targets
    # When rewriting the timestamp of mo file, the number of documents to be
    # updated will be changed.
    mtime = (app0.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').stat().st_mtime
    (app0.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').utime((mtime + 5, mtime + 5))
    update_targets = get_update_targets(app0)
    assert update_targets[1] == {'bom'}, update_targets

    # Because doctree for gettext builder can not be shared with other builders,
    # erase doctreedir before gettext build.
    app0.doctreedir.rmtree()

    # phase2: build document with gettext builder.
    # The mo file in the srcdir directory is retained.
    app = make_app('gettext', *args, **kwargs)
    app.build()
    time.sleep(0.01)
    # Since it is after the build, the number of documents to be updated is 0
    update_targets = get_update_targets(app)
    assert update_targets[1] == set(), update_targets
    # Even if the timestamp of the mo file is updated, the number of documents
    # to be updated is 0. gettext builder does not rebuild because of mo update.
    (app0.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').utime((mtime + 10, mtime + 10))
    update_targets = get_update_targets(app)
    assert update_targets[1] == set(), update_targets


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_meta(app):
    app.build()
    # --- test for meta
    result = (app.outdir / 'index.html').read_text(encoding='utf8')
    expected_expr = '<meta content="TESTDATA FOR I18N" name="description" />'
    assert expected_expr in result
    expected_expr = '<meta content="I18N, SPHINX, MARKUP" name="keywords" />'
    assert expected_expr in result
    expected_expr = '<p class="caption" role="heading"><span class="caption-text">HIDDEN TOC</span></p>'
    assert expected_expr in result


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_footnotes(app):
    app.build()
    # --- test for #955 cant-build-html-with-footnotes-when-using
    # expect no error by build
    (app.outdir / 'footnote.html').read_text(encoding='utf8')


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_undefined_refs(app):
    app.build()
    # --- links to undefined reference
    result = (app.outdir / 'refs_inconsistency.html').read_text(encoding='utf8')

    expected_expr = ('<a class="reference external" '
                     'href="http://www.example.com">reference</a>')
    assert len(re.findall(expected_expr, result)) == 2

    expected_expr = ('<a class="reference internal" '
                     'href="#reference">reference</a>')
    assert len(re.findall(expected_expr, result)) == 0

    expected_expr = ('<a class="reference internal" '
                     'href="#i18n-with-refs-inconsistency">I18N WITH '
                     'REFS INCONSISTENCY</a>')
    assert len(re.findall(expected_expr, result)) == 1


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_index_entries(app):
    app.build()
    # --- index entries: regression test for #976
    result = (app.outdir / 'genindex.html').read_text(encoding='utf8')

    def wrap(tag, keyword):
        start_tag = "<%s[^>]*>" % tag
        end_tag = "</%s>" % tag
        return fr"{start_tag}\s*{keyword}\s*{end_tag}"

    def wrap_nest(parenttag, childtag, keyword):
        start_tag1 = "<%s[^>]*>" % parenttag
        start_tag2 = "<%s[^>]*>" % childtag
        return fr"{start_tag1}\s*{keyword}\s*{start_tag2}"
    expected_exprs = [
        wrap('a', 'NEWSLETTER'),
        wrap('a', 'MAILING LIST'),
        wrap('a', 'RECIPIENTS LIST'),
        wrap('a', 'FIRST SECOND'),
        wrap('a', 'SECOND THIRD'),
        wrap('a', 'THIRD, FIRST'),
        wrap_nest('li', 'ul', 'ENTRY'),
        wrap_nest('li', 'ul', 'SEE'),
    ]
    for expr in expected_exprs:
        assert_re_search(expr, result, re.M)


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_versionchanges(app):
    app.build()
    # --- versionchanges
    result = (app.outdir / 'versionchange.html').read_text(encoding='utf8')

    def get_content(result, name):
        matched = re.search(r'<div class="%s">\n*(.*?)</div>' % name,
                            result, re.DOTALL)
        if matched:
            return matched.group(1)
        else:
            return ''

    expect1 = (
        """<p><span class="versionmodified deprecated">Deprecated since version 1.0: </span>"""
        """THIS IS THE <em>FIRST</em> PARAGRAPH OF DEPRECATED.</p>\n"""
        """<p>THIS IS THE <em>SECOND</em> PARAGRAPH OF DEPRECATED.</p>\n""")
    matched_content = get_content(result, "deprecated")
    assert expect1 == matched_content

    expect2 = (
        """<p><span class="versionmodified added">New in version 1.0: </span>"""
        """THIS IS THE <em>FIRST</em> PARAGRAPH OF VERSIONADDED.</p>\n""")
    matched_content = get_content(result, "versionadded")
    assert expect2 == matched_content

    expect3 = (
        """<p><span class="versionmodified changed">Changed in version 1.0: </span>"""
        """THIS IS THE <em>FIRST</em> PARAGRAPH OF VERSIONCHANGED.</p>\n""")
    matched_content = get_content(result, "versionchanged")
    assert expect3 == matched_content


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_docfields(app):
    app.build()
    # --- docfields
    # expect no error by build
    (app.outdir / 'docfields.html').read_text(encoding='utf8')


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_template(app):
    app.build()
    # --- gettext template
    result = (app.outdir / 'contents.html').read_text(encoding='utf8')
    assert "WELCOME" in result
    assert "SPHINX 2013.120" in result


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_html_rebuild_mo(app):
    app.build()
    # --- rebuild by .mo mtime
    app.builder.build_update()
    app.env.find_files(app.config, app.builder)
    _, updated, _ = app.env.get_outdated_files(config_changed=False)
    assert len(updated) == 0

    mtime = (app.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').stat().st_mtime
    (app.srcdir / 'xx' / 'LC_MESSAGES' / 'bom.mo').utime((mtime + 5, mtime + 5))
    app.env.find_files(app.config, app.builder)
    _, updated, _ = app.env.get_outdated_files(config_changed=False)
    assert len(updated) == 1


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_footnotes(app, warning):
    app.build()
    # --- footnotes: regression test for fix #955, #1176
    et = etree_parse(app.outdir / 'footnote.xml')
    secs = et.findall('section')

    para0 = secs[0].findall('paragraph')
    assert_elem(
        para0[0],
        ['I18N WITH FOOTNOTE', 'INCLUDE THIS CONTENTS',
         '2', '[ref]', '1', '100', '*', '. SECOND FOOTNOTE_REF', '100', '.'],
        ['i18n-with-footnote', 'ref'])

    # check node_id for footnote_references which refer same footnote (refs: #3002)
    assert para0[0][4].text == para0[0][6].text == '100'
    assert para0[0][4].attrib['ids'] != para0[0][6].attrib['ids']

    footnote0 = secs[0].findall('footnote')
    assert_elem(
        footnote0[0],
        ['1', 'THIS IS A AUTO NUMBERED FOOTNOTE.'],
        None,
        ['1'])
    assert_elem(
        footnote0[1],
        ['100', 'THIS IS A NUMBERED FOOTNOTE.'],
        None,
        ['100'])
    assert_elem(
        footnote0[2],
        ['2', 'THIS IS A AUTO NUMBERED NAMED FOOTNOTE.'],
        None,
        ['named'])
    assert_elem(
        footnote0[3],
        ['*', 'THIS IS A AUTO SYMBOL FOOTNOTE.'],
        None,
        None)

    citation0 = secs[0].findall('citation')
    assert_elem(
        citation0[0],
        ['ref', 'THIS IS A NAMED FOOTNOTE.'],
        None,
        ['ref'])

    warnings = getwarning(warning)
    warning_expr = '.*/footnote.xml:\\d*: SEVERE: Duplicate ID: ".*".\n'
    assert_not_re_search(warning_expr, warnings)


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_footnote_backlinks(app):
    app.build()
    # --- footnote backlinks: i18n test for #1058
    et = etree_parse(app.outdir / 'footnote.xml')
    secs = et.findall('section')

    para0 = secs[0].findall('paragraph')
    refs0 = para0[0].findall('footnote_reference')
    refid2id = {r.attrib.get('refid'): r.attrib.get('ids') for r in refs0}

    footnote0 = secs[0].findall('footnote')
    for footnote in footnote0:
        ids = footnote.attrib.get('ids')
        backrefs = footnote.attrib.get('backrefs').split()
        assert refid2id[ids] in backrefs


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_refs_in_python_domain(app):
    app.build()
    # --- refs in the Python domain
    et = etree_parse(app.outdir / 'refs_python_domain.xml')
    secs = et.findall('section')

    # regression test for fix #1363
    para0 = secs[0].findall('paragraph')
    assert_elem(
        para0[0],
        ['SEE THIS DECORATOR:', 'sensitive_variables()', '.'],
        ['sensitive.sensitive_variables'])


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_keep_external_links(app):
    app.build()
    # --- keep external links: regression test for #1044
    et = etree_parse(app.outdir / 'external_links.xml')
    secs = et.findall('section')

    para0 = secs[0].findall('paragraph')
    # external link check
    assert_elem(
        para0[0],
        ['EXTERNAL LINK TO', 'Python', '.'],
        ['http://python.org/index.html'])

    # internal link check
    assert_elem(
        para0[1],
        ['EXTERNAL LINKS', 'IS INTERNAL LINK.'],
        ['i18n-with-external-links'])

    # inline link check
    assert_elem(
        para0[2],
        ['INLINE LINK BY', 'THE SPHINX SITE', '.'],
        ['http://sphinx-doc.org'])

    # unnamed link check
    assert_elem(
        para0[3],
        ['UNNAMED', 'LINK', '.'],
        ['http://google.com'])

    # link target swapped translation
    para1 = secs[1].findall('paragraph')
    assert_elem(
        para1[0],
        ['LINK TO', 'external2', 'AND', 'external1', '.'],
        ['https://www.google.com/external2',
         'https://www.google.com/external1'])
    assert_elem(
        para1[1],
        ['LINK TO', 'THE PYTHON SITE', 'AND', 'THE SPHINX SITE', '.'],
        ['http://python.org', 'http://sphinx-doc.org'])

    # multiple references in the same line
    para2 = secs[2].findall('paragraph')
    assert_elem(
        para2[0],
        ['LINK TO', 'EXTERNAL LINKS', ',', 'Python', ',',
         'THE SPHINX SITE', ',', 'UNNAMED', 'AND',
         'THE PYTHON SITE', '.'],
        ['i18n-with-external-links', 'http://python.org/index.html',
         'http://sphinx-doc.org', 'http://google.com',
         'http://python.org'])


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_role_xref(app):
    app.build()
    # --- role xref: regression test for #1090, #1193
    et = etree_parse(app.outdir / 'role_xref.xml')
    sec1, sec2 = et.findall('section')

    para1, = sec1.findall('paragraph')
    assert_elem(
        para1,
        ['LINK TO', "I18N ROCK'N ROLE XREF", ',', 'CONTENTS', ',',
         'SOME NEW TERM', '.'],
        ['i18n-role-xref', 'index',
         'glossary_terms#term-Some-term'])

    para2 = sec2.findall('paragraph')
    assert_elem(
        para2[0],
        ['LINK TO', 'SOME OTHER NEW TERM', 'AND', 'SOME NEW TERM', '.'],
        ['glossary_terms#term-Some-other-term',
         'glossary_terms#term-Some-term'])
    assert_elem(
        para2[1],
        ['LINK TO', 'LABEL', 'AND',
         'SAME TYPE LINKS', 'AND', 'SAME TYPE LINKS', '.'],
        ['i18n-role-xref', 'same-type-links', 'same-type-links'])
    assert_elem(
        para2[2],
        ['LINK TO', 'I18N WITH GLOSSARY TERMS', 'AND', 'CONTENTS', '.'],
        ['glossary_terms', 'index'])
    assert_elem(
        para2[3],
        ['LINK TO', '--module', 'AND', '-m', '.'],
        ['cmdoption-module', 'cmdoption-m'])
    assert_elem(
        para2[4],
        ['LINK TO', 'env2', 'AND', 'env1', '.'],
        ['envvar-env2', 'envvar-env1'])
    assert_elem(
        para2[5],
        ['LINK TO', 'token2', 'AND', 'token1', '.'],
        [])  # TODO: how do I link token role to productionlist?
    assert_elem(
        para2[6],
        ['LINK TO', 'same-type-links', 'AND', "i18n-role-xref", '.'],
        ['same-type-links', 'i18n-role-xref'])


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_warnings(app, warning):
    app.build()
    # warnings
    warnings = getwarning(warning)
    assert 'term not in glossary' not in warnings
    assert 'undefined label' not in warnings
    assert 'unknown document' not in warnings


@sphinx_intl
@pytest.mark.sphinx('xml')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_xml_label_targets(app):
    app.build()
    # --- label targets: regression test for #1193, #1265
    et = etree_parse(app.outdir / 'label_target.xml')
    secs = et.findall('section')

    para0 = secs[0].findall('paragraph')
    assert_elem(
        para0[0],
        ['X SECTION AND LABEL', 'POINT TO', 'implicit-target', 'AND',
         'X SECTION AND LABEL', 'POINT TO', 'section-and-label', '.'],
        ['implicit-target', 'section-and-label'])

    para1 = secs[1].findall('paragraph')
    assert_elem(
        para1[0],
        ['X EXPLICIT-TARGET', 'POINT TO', 'explicit-target', 'AND',
         'X EXPLICIT-TARGET', 'POINT TO DUPLICATED ID LIKE', 'id1',
         '.'],
        ['explicit-target', 'id1'])

    para2 = secs[2].findall('paragraph')
    assert_elem(
        para2[0],
        ['X IMPLICIT SECTION NAME', 'POINT TO',
         'implicit-section-name', '.'],
        ['implicit-section-name'])

    sec2 = secs[2].findall('section')

    para2_0 = sec2[0].findall('paragraph')
    assert_elem(
        para2_0[0],
        ['`X DUPLICATED SUB SECTION`_', 'IS BROKEN LINK.'],
        [])

    para3 = secs[3].findall('paragraph')
    assert_elem(
        para3[0],
        ['X', 'bridge label',
         'IS NOT TRANSLATABLE BUT LINKED TO TRANSLATED ' +
         'SECTION TITLE.'],
        ['label-bridged-target-section'])
    assert_elem(
        para3[1],
        ['X', 'bridge label', 'POINT TO',
         'LABEL BRIDGED TARGET SECTION', 'AND', 'bridge label2',
         'POINT TO', 'SECTION AND LABEL', '. THE SECOND APPEARED',
         'bridge label2', 'POINT TO CORRECT TARGET.'],
        ['label-bridged-target-section',
         'section-and-label',
         'section-and-label'])


@sphinx_intl
@pytest.mark.sphinx('html')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_additional_targets_should_not_be_translated(app):
    app.build()
    # [literalblock.txt]
    result = (app.outdir / 'literalblock.html').read_text(encoding='utf8')

    # title should be translated
    expected_expr = 'CODE-BLOCKS'
    assert_count(expected_expr, result, 2)

    # ruby code block should not be translated but be highlighted
    expected_expr = """<span class="s1">&#39;result&#39;</span>"""
    assert_count(expected_expr, result, 1)

    # C code block without lang should not be translated and *ruby* highlighted
    expected_expr = """<span class="c1">#include &lt;stdlib.h&gt;</span>"""
    assert_count(expected_expr, result, 1)

    # C code block with lang should not be translated but be *C* highlighted
    expected_expr = ("""<span class="cp">#include</span>"""
                     """<span class="w"> </span>"""
                     """<span class="cpf">&lt;stdio.h&gt;</span>""")
    assert_count(expected_expr, result, 1)

    # literal block in list item should not be translated
    expected_expr = ("""<span class="n">literal</span>"""
                     """<span class="o">-</span>"""
                     """<span class="n">block</span>\n"""
                     """<span class="k">in</span>"""
                     """<span class="w"> </span>"""
                     """<span class="n">list</span>""")
    if pygments.__version__ < '2.14.0':
        expected_expr = expected_expr.replace("""<span class="w"> </span>""", ' ')
    assert_count(expected_expr, result, 1)

    # doctest block should not be translated but be highlighted
    expected_expr = (
        """<span class="gp">&gt;&gt;&gt; </span>"""
        """<span class="kn">import</span> <span class="nn">sys</span>  """
        """<span class="c1"># sys importing</span>""")
    assert_count(expected_expr, result, 1)

    # [raw.txt]

    result = (app.outdir / 'raw.html').read_text(encoding='utf8')

    # raw block should not be translated
    expected_expr = """<iframe src="http://sphinx-doc.org"></iframe></section>"""
    assert_count(expected_expr, result, 1)

    # [figure.txt]

    result = (app.outdir / 'figure.html').read_text(encoding='utf8')

    # src for image block should not be translated (alt is translated)
    expected_expr = """<img alt="I18N -&gt; IMG" src="_images/i18n.png" />"""
    assert_count(expected_expr, result, 1)

    # src for figure block should not be translated (alt is translated)
    expected_expr = """<img alt="IMG -&gt; I18N" src="_images/img.png" />"""
    assert_count(expected_expr, result, 1)


@sphinx_intl
@pytest.mark.sphinx(
    'html',
    srcdir='test_additional_targets_should_be_translated',
    confoverrides={
        'language': 'xx', 'locale_dirs': ['.'],
        'gettext_compact': False,
        'gettext_additional_targets': [
            'index',
            'literal-block',
            'doctest-block',
            'raw',
            'image',
        ],
    },
)
def test_additional_targets_should_be_translated(app):
    app.build()
    # [literalblock.txt]
    result = (app.outdir / 'literalblock.html').read_text(encoding='utf8')

    # title should be translated
    expected_expr = 'CODE-BLOCKS'
    assert_count(expected_expr, result, 2)

    # ruby code block should be translated and be highlighted
    expected_expr = """<span class="s1">&#39;RESULT&#39;</span>"""
    assert_count(expected_expr, result, 1)

    # C code block without lang should be translated and *ruby* highlighted
    expected_expr = """<span class="c1">#include &lt;STDLIB.H&gt;</span>"""
    assert_count(expected_expr, result, 1)

    # C code block with lang should be translated and be *C* highlighted
    expected_expr = ("""<span class="cp">#include</span>"""
                     """<span class="w"> </span>"""
                     """<span class="cpf">&lt;STDIO.H&gt;</span>""")
    assert_count(expected_expr, result, 1)

    # literal block in list item should be translated
    expected_expr = ("""<span class="no">LITERAL</span>"""
                     """<span class="o">-</span>"""
                     """<span class="no">BLOCK</span>\n"""
                     """<span class="no">IN</span>"""
                     """<span class="w"> </span>"""
                     """<span class="no">LIST</span>""")
    if pygments.__version__ < '2.14.0':
        expected_expr = expected_expr.replace("""<span class="w"> </span>""", ' ')
    assert_count(expected_expr, result, 1)

    # doctest block should not be translated but be highlighted
    expected_expr = (
        """<span class="gp">&gt;&gt;&gt; </span>"""
        """<span class="kn">import</span> <span class="nn">sys</span>  """
        """<span class="c1"># SYS IMPORTING</span>""")
    assert_count(expected_expr, result, 1)

    # '#noqa' should remain in literal blocks.
    assert_count("#noqa", result, 1)

    # [raw.txt]

    result = (app.outdir / 'raw.html').read_text(encoding='utf8')

    # raw block should be translated
    expected_expr = """<iframe src="HTTP://SPHINX-DOC.ORG"></iframe></section>"""
    assert_count(expected_expr, result, 1)

    # [figure.txt]

    result = (app.outdir / 'figure.html').read_text(encoding='utf8')

    # alt and src for image block should be translated
    expected_expr = """<img alt="I18N -&gt; IMG" src="_images/img.png" />"""
    assert_count(expected_expr, result, 1)

    # alt and src for figure block should be translated
    expected_expr = """<img alt="IMG -&gt; I18N" src="_images/i18n.png" />"""
    assert_count(expected_expr, result, 1)


@sphinx_intl
@pytest.mark.sphinx('text')
@pytest.mark.test_params(shared_result='test_intl_basic')
def test_text_references(app, warning):
    app.builder.build_specific([app.srcdir / 'refs.txt'])

    warnings = warning.getvalue().replace(os.sep, '/')
    warning_expr = 'refs.txt:\\d+: ERROR: Unknown target name:'
    assert_count(warning_expr, warnings, 0)


@pytest.mark.sphinx(
    'dummy', testroot='images',
    srcdir='test_intl_images',
    confoverrides={'language': 'xx'},
)
@pytest.mark.xfail(os.name != 'posix', reason="Not working on windows")
def test_image_glob_intl(app):
    app.build()

    # index.rst
    doctree = app.env.get_doctree('index')
    assert_node(doctree[0][1], nodes.image, uri='rimg.xx.png',
                candidates={'*': 'rimg.xx.png'})

    assert isinstance(doctree[0][2], nodes.figure)
    assert_node(doctree[0][2][0], nodes.image, uri='rimg.xx.png',
                candidates={'*': 'rimg.xx.png'})

    assert_node(doctree[0][3], nodes.image, uri='img.*',
                candidates={'application/pdf': 'img.pdf',
                            'image/gif': 'img.gif',
                            'image/png': 'img.png'})

    assert isinstance(doctree[0][4], nodes.figure)
    assert_node(doctree[0][4][0], nodes.image, uri='img.*',
                candidates={'application/pdf': 'img.pdf',
                            'image/gif': 'img.gif',
                            'image/png': 'img.png'})

    # subdir/index.rst
    doctree = app.env.get_doctree('subdir/index')
    assert_node(doctree[0][1], nodes.image, uri='subdir/rimg.xx.png',
                candidates={'*': 'subdir/rimg.xx.png'})

    assert_node(doctree[0][2], nodes.image, uri='subdir/svgimg.*',
                candidates={'application/pdf': 'subdir/svgimg.pdf',
                            'image/svg+xml': 'subdir/svgimg.xx.svg'})

    assert isinstance(doctree[0][3], nodes.figure)
    assert_node(doctree[0][3][0], nodes.image, uri='subdir/svgimg.*',
                candidates={'application/pdf': 'subdir/svgimg.pdf',
                            'image/svg+xml': 'subdir/svgimg.xx.svg'})


@pytest.mark.sphinx(
    'dummy', testroot='images',
    srcdir='test_intl_images',
    confoverrides={
        'language': 'xx',
        'figure_language_filename': '{root}{ext}.{language}',
    },
)
@pytest.mark.xfail(os.name != 'posix', reason="Not working on windows")
def test_image_glob_intl_using_figure_language_filename(app):
    app.build()

    # index.rst
    doctree = app.env.get_doctree('index')
    assert_node(doctree[0][1], nodes.image, uri='rimg.png.xx',
                candidates={'*': 'rimg.png.xx'})

    assert isinstance(doctree[0][2], nodes.figure)
    assert_node(doctree[0][2][0], nodes.image, uri='rimg.png.xx',
                candidates={'*': 'rimg.png.xx'})

    assert_node(doctree[0][3], nodes.image, uri='img.*',
                candidates={'application/pdf': 'img.pdf',
                            'image/gif': 'img.gif',
                            'image/png': 'img.png'})

    assert isinstance(doctree[0][4], nodes.figure)
    assert_node(doctree[0][4][0], nodes.image, uri='img.*',
                candidates={'application/pdf': 'img.pdf',
                            'image/gif': 'img.gif',
                            'image/png': 'img.png'})

    # subdir/index.rst
    doctree = app.env.get_doctree('subdir/index')
    assert_node(doctree[0][1], nodes.image, uri='subdir/rimg.png',
                candidates={'*': 'subdir/rimg.png'})

    assert_node(doctree[0][2], nodes.image, uri='subdir/svgimg.*',
                candidates={'application/pdf': 'subdir/svgimg.pdf',
                            'image/svg+xml': 'subdir/svgimg.svg'})

    assert isinstance(doctree[0][3], nodes.figure)
    assert_node(doctree[0][3][0], nodes.image, uri='subdir/svgimg.*',
                candidates={'application/pdf': 'subdir/svgimg.pdf',
                            'image/svg+xml': 'subdir/svgimg.svg'})


def getwarning(warnings):
    return strip_escseq(warnings.getvalue().replace(os.sep, '/'))


@pytest.mark.sphinx('html', testroot='basic',
                    srcdir='gettext_allow_fuzzy_translations',
                    confoverrides={
                        'language': 'de',
                        'gettext_allow_fuzzy_translations': True,
                    })
def test_gettext_allow_fuzzy_translations(app):
    locale_dir = app.srcdir / 'locales' / 'de' / 'LC_MESSAGES'
    locale_dir.makedirs()
    with (locale_dir / 'index.po').open('wb') as f:
        catalog = Catalog()
        catalog.add('features', 'FEATURES', flags=('fuzzy',))
        pofile.write_po(f, catalog)

    app.build()
    content = (app.outdir / 'index.html').read_text(encoding='utf8')
    assert 'FEATURES' in content


@pytest.mark.sphinx('html', testroot='basic',
                    srcdir='gettext_disallow_fuzzy_translations',
                    confoverrides={
                        'language': 'de',
                        'gettext_allow_fuzzy_translations': False,
                    })
def test_gettext_disallow_fuzzy_translations(app):
    locale_dir = app.srcdir / 'locales' / 'de' / 'LC_MESSAGES'
    locale_dir.makedirs()
    with (locale_dir / 'index.po').open('wb') as f:
        catalog = Catalog()
        catalog.add('features', 'FEATURES', flags=('fuzzy',))
        pofile.write_po(f, catalog)

    app.build()
    content = (app.outdir / 'index.html').read_text(encoding='utf8')
    assert 'FEATURES' not in content


@pytest.mark.sphinx('html', testroot='basic', confoverrides={'language': 'de'})
def test_customize_system_message(make_app, app_params, sphinx_test_tempdir):
    try:
        # clear translators cache
        locale.translators.clear()

        # prepare message catalog (.po)
        locale_dir = sphinx_test_tempdir / 'basic' / 'locales' / 'de' / 'LC_MESSAGES'
        locale_dir.makedirs()
        with (locale_dir / 'sphinx.po').open('wb') as f:
            catalog = Catalog()
            catalog.add('Quick search', 'QUICK SEARCH')
            pofile.write_po(f, catalog)

        # construct application and convert po file to .mo
        args, kwargs = app_params
        app = make_app(*args, **kwargs)
        assert (locale_dir / 'sphinx.mo').exists()
        assert app.translator.gettext('Quick search') == 'QUICK SEARCH'

        app.build()
        content = (app.outdir / 'index.html').read_text(encoding='utf8')
        assert 'QUICK SEARCH' in content
    finally:
        locale.translators.clear()


@pytest.mark.sphinx('html', testroot='intl', confoverrides={'today_fmt': '%Y-%m-%d'})
def test_customize_today_date_format(app, monkeypatch):
    with monkeypatch.context() as m:
        m.setenv('SOURCE_DATE_EPOCH', '1439131307')
        app.build()
        content = (app.outdir / 'refs.html').read_text(encoding='utf8')

    assert '2015-08-09' in content