tests/test_doxylink.py

import datetime
import glob
import os
import os.path
import subprocess
import xml.etree.ElementTree as ET
from unittest.mock import MagicMock

import pytest
from testfixtures import LogCapture

from sphinxcontrib.doxylink import doxylink


@pytest.fixture
def examples_tag_file():
    basedir = os.path.join(os.path.dirname(__file__), '../examples')
    extensions = None
    tagfile = None
    with open(os.path.join(basedir, 'Doxyfile')) as doxyfile:
        for line in doxyfile:
            if line.startswith('FILE_PATTERNS'):
                extensions = line.split('=')[1].strip().split(',')
            elif line.startswith('GENERATE_TAGFILE'):
                tagfile_name = line.split('=')[1].strip()
                tagfile = os.path.join(basedir, tagfile_name)
    if None in [extensions, tagfile]:
        raise RuntimeError('Could not find FILE_PATTERNS or GENERATE_TAGFILE in Doxyfile')
    matches = []
    for extension in extensions:
        m = glob.glob(os.path.join(basedir, extension))
        matches.extend(m)

    if not os.path.isfile(tagfile):
        recreate = True
    else:
        latest_file_changed = max(datetime.datetime.fromtimestamp(os.stat(f).st_mtime) for f in matches)
        tagfile_changed = datetime.datetime.fromtimestamp(os.stat(tagfile).st_mtime)
        if latest_file_changed > tagfile_changed:
            recreate = True
        else:
            recreate = False

    if recreate:
        subprocess.call('doxygen', cwd=basedir)

    return tagfile


@pytest.mark.parametrize('symbol, file', [
    ('my_func', 'my__lib_8h.html'),
    ('my_func()', 'my__lib_8h.html'),
    ('my_namespace::my_func', 'namespacemy__namespace.html'),
    ('my_lib.h', 'my__lib_8h.html'),
    ('my_lib.h::my_func', 'my__lib_8h.html'),
    ('my_namespace', 'namespacemy__namespace.html'),
    ('my_namespace::MyClass', 'classmy__namespace_1_1MyClass.html'),
    ('my_lib.h::MY_MACRO', 'my__lib_8h.html'),
    ('my_namespace::MyClass::my_method', 'classmy__namespace_1_1MyClass.html'),
    ('ClassesGroup', 'group__ClassesGroup.html'),
])
def test_file_html(examples_tag_file, symbol, file):
    tag_file = ET.parse(examples_tag_file)
    mapping = doxylink.SymbolMap(tag_file)

    assert mapping[symbol].file.startswith(file)


@pytest.mark.parametrize('symbol1, symbol2', [
    ('my_func', 'my_lib.h::my_func'),
])
def test_file_equivalent(examples_tag_file, symbol1, symbol2):
    tag_file = ET.parse(examples_tag_file)
    mapping = doxylink.SymbolMap(tag_file)

    assert mapping[symbol1].file == mapping[symbol2].file


@pytest.mark.parametrize('symbol1, symbol2', [
    ('my_func', 'my_namespace::my_func'),
    ('my_func()', 'my_func(int)'),
    ('my_func(float)', 'my_func(int)'),
])
def test_file_different(examples_tag_file, symbol1, symbol2):
    tag_file = ET.parse(examples_tag_file)
    mapping = doxylink.SymbolMap(tag_file)

    assert mapping[symbol1].file != mapping[symbol2].file


def test_parse_tag_file(examples_tag_file):
    tag_file = ET.parse(examples_tag_file)
    mapping = doxylink.parse_tag_file(tag_file, None)

    def has_entry(name):
        """
        Checks if we have at least one entry with the specified name
        """
        return any(filter(lambda entry: entry.name == name, mapping))

    assert has_entry('my_lib.h')
    assert has_entry('my_lib.h::my_func')
    assert has_entry('my_namespace')
    assert has_entry('my_namespace::MyClass')
    assert has_entry('my_lib.h::MY_MACRO')
    assert has_entry('my_namespace::MyClass::my_method')
    assert has_entry('ClassesGroup')


@pytest.mark.parametrize('symbol, expected_matches', [
    ('my_namespace', {'my_namespace'}),
    ('my_namespace::MyClass', {'my_namespace::MyClass'}),
    ('MyClass', {'my_namespace::MyClass', 'my_namespace::MyClass::MyClass', 'MyClass', 'MyClass::MyClass'}),
    ('my_lib.h::MY_MACRO', {'my_lib.h::MY_MACRO'}),
    ('MY_MACRO', {'my_lib.h::MY_MACRO'}),
    ('my_namespace::MyClass::my_method', {'my_namespace::MyClass::my_method'}),
    ('MyClass::my_method', {'my_namespace::MyClass::my_method'}),
    ('ClassesGroup', {'ClassesGroup'}),
    ('lassesGroup', set()),
    ('yClass::my_method', set()),
])
def test_find_url_piecewise(examples_tag_file, symbol, expected_matches):
    tag_file = ET.parse(examples_tag_file)
    mapping = doxylink.SymbolMap(tag_file)

    matches = mapping._find_entries(symbol, None, None)
    matched_names = {entry.name for entry in matches}

    assert expected_matches == matched_names
    assert set(matches).issubset(set(mapping._entries))


@pytest.mark.parametrize('str_to_validate, expected', [
    ('http://example.com', True),
    ('https://example.com/sub', True),
    ('http://1.1.1.1', True),
    ('http://1.1.1.1/sub', True),
    ('http://localhost', True),
    ('ftp://example.com', True),
    ('example', False),
    ('http_dir', False),
    ('http://1.2.3', False),
])
def test_is_url(str_to_validate, expected):
    result = doxylink.is_url(str_to_validate)
    assert result == expected


@pytest.mark.parametrize('values, out_rootdir, out_pdf', [
    (['doxygen/project.tag', 'https://example.com'], 'https://example.com', ''),
    (['doxygen/project.tag', 'https://example.com', ''], 'https://example.com', ''),
    (['doxygen/project.tag', 'doxygen.pdf'], '', 'doxygen.pdf'),
    (['doxygen/project.tag', 'https://example.com', 'doxygen.pdf'], 'https://example.com', 'doxygen.pdf'),
])
def test_extract_configuration_pass(values, out_rootdir, out_pdf):
    tag_filename, rootdir, pdf_filename = doxylink.extract_configuration(values)
    assert rootdir == out_rootdir
    assert pdf_filename == out_pdf


@pytest.mark.parametrize('values', [
    (['doxygen/project.tag']),
    (['doxygen/project.tag', 'https://example.com', 'doxygen.pdf', 'fail']),
])
def test_extract_configuration_fail(values):
    with pytest.raises(ValueError):
        doxylink.extract_configuration(values)


@pytest.mark.parametrize('tag_filename, rootdir, pdf_filename, builder', [
    ('doxygen/project.tag', 'https://example.com', '', 'html'),
    ('doxygen/project.tag', '', 'doxygen.pdf', 'latex'),
    ('doxygen/project.tag', 'html/doxygen', 'doxygen.pdf', 'latex'),
])
def test_process_configuration_pass(tag_filename, rootdir, pdf_filename, builder):
    app = MagicMock()
    app.builder.format = builder
    with LogCapture() as l:
        doxylink.process_configuration(app, tag_filename, rootdir, pdf_filename)
    l.check()


@pytest.mark.parametrize('rootdir, pdf_filename, builder, msg', [
    ('', 'doxygen.pdf', 'html',
     "Linking from HTML to Doxygen pdf ('doxygen.pdf') is not supported. "
     "Consider setting the root directory of Doxygen's HTML output as value instead."),
    ('https://example.com', '', 'latex',
     "Linking from PDF to remote Doxygen html is not supported yet; got 'https://example.com'."
     "Consider linking to a Doxygen pdf file instead as third element of the tuple in the `doxylink` config variable."),
    ('html/doxygen', '', 'latex',
     "Linking from PDF to local Doxygen html is not possible; got 'html/doxygen'."
     "Consider linking to a Doxygen pdf file instead as third element of the tuple in the `doxylink` config variable."),
])
def test_process_configuration_warn(rootdir, pdf_filename, builder, msg):
    app = MagicMock()
    app.builder.format = builder
    with LogCapture() as l:
        doxylink.process_configuration(app, 'doxygen/project.tag', rootdir, pdf_filename)
    l.check(('sphinx.sphinxcontrib.doxylink.doxylink', 'WARNING', msg))


def test_parse_error_ignore_regexes():
    # Create a modified tag file content with problematic entries
    problematic_xml = """<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>
<tagfile>
    <compound kind="file">
        <name>test.h</name>
        <filename>test_8h</filename>
        <member kind="function">
            <name>foo</name>
            <arglist>(transform_pb2.Rotation2f a)</arglist>
            <anchor>1234</anchor>
        </member>
        <member kind="function">
            <name>bad</name>
            <arglist>(*int i)</arglist>
            <anchor>5678</anchor>
        </member>
        <member kind="function">
            <name>baz</name>
            <arglist>(int i, float f)</arglist>
            <anchor>9012</anchor>
        </member>
        <member kind="function">
            <name>unexpected</name>
            <arglist>(*int i)</arglist>
            <anchor>5678</anchor>
        </member>
    </compound>
</tagfile>"""

    # Write temporary tag file
    test_tag_file = 'test_temp.tag'
    with open(test_tag_file, 'w') as f:
        f.write(problematic_xml)

    try:
        tag_file = ET.parse(test_tag_file)
        patterns = [r'kipping function test\.h::foo', r'kipping.*bad']

        with LogCapture() as log:
            mapping = doxylink.parse_tag_file(tag_file, patterns)

            # Verify that the mapping still contains valid entries
            assert any(entry.name.endswith('baz') for entry in mapping)

            # Verify that messages matching our patterns were not logged
            assert not any('test.h::foo' in record.msg for record in log.records)
            assert not any('bar' in record.msg for record in log.records)

            # Verify other error messages were logged
            assert any('Skipping' in record.msg for record in log.records)

    finally:
        if os.path.exists(test_tag_file):
            os.unlink(test_tag_file)