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test_renderer.py
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test_renderer.py
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import os
import pytest # type: ignore
import sphinx.addnodes
import sphinx.environment
from breathe.parser.compound import (
compounddefTypeSub, linkedTextTypeSub, memberdefTypeSub, paramTypeSub,
refTypeSub, MixedContainer
)
from breathe.renderer.sphinxrenderer import SphinxRenderer
from breathe.renderer.filter import OpenFilter
from docutils import frontend, nodes, parsers, utils
from sphinx.testing.fixtures import (
test_params, app_params, make_app, shared_result,
sphinx_test_tempdir, rootdir
)
from sphinx.testing.path import path
sphinx.locale.init([], '')
@pytest.fixture(scope='function')
def app(test_params, app_params, make_app, shared_result):
"""
Based on sphinx.testing.fixtures.app
"""
args, kwargs = app_params
assert 'srcdir' in kwargs
kwargs['srcdir'].makedirs(exist_ok=True)
(kwargs['srcdir'] / 'conf.py').write_text('')
app_ = make_app(*args, **kwargs)
yield app_
print('# testroot:', kwargs.get('testroot', 'root'))
print('# builder:', app_.builder.name)
print('# srcdir:', app_.srcdir)
print('# outdir:', app_.outdir)
print('# status:', '\n' + app_._status.getvalue())
print('# warning:', '\n' + app_._warning.getvalue())
if test_params['shared_result']:
shared_result.store(test_params['shared_result'], app_)
class WrappedDoxygenNode:
"""
A base class for test wrappers of Doxygen nodes. It allows setting all attributes via keyword arguments
in the constructor.
"""
def __init__(self, cls, *args, **kwargs):
if cls:
cls.__init__(self, args)
for name, value in kwargs.items():
if not hasattr(self, name):
raise AttributeError('invalid attribute ' + name)
setattr(self, name, value)
class WrappedMixedContainer(MixedContainer, WrappedDoxygenNode):
"""A test wrapper of Doxygen mixed container."""
def __init__(self, **kwargs):
MixedContainer.__init__(self, None, None, None, None)
WrappedDoxygenNode.__init__(self, None, **kwargs)
class WrappedLinkedText(linkedTextTypeSub, WrappedDoxygenNode):
"""A test wrapper of Doxygen linked text."""
def __init__(self, **kwargs):
WrappedDoxygenNode.__init__(self, linkedTextTypeSub, **kwargs)
class WrappedMemberDef(memberdefTypeSub, WrappedDoxygenNode):
"""A test wrapper of Doxygen class/file/namespace member symbol such as a function declaration."""
def __init__(self, **kwargs):
WrappedDoxygenNode.__init__(self, memberdefTypeSub, **kwargs)
class WrappedParam(paramTypeSub, WrappedDoxygenNode):
"""A test wrapper of Doxygen parameter."""
def __init__(self, **kwargs):
WrappedDoxygenNode.__init__(self, paramTypeSub, **kwargs)
class WrappedRef(refTypeSub, WrappedDoxygenNode):
"""A test wrapper of Doxygen ref."""
def __init__(self, node_name, **kwargs):
WrappedDoxygenNode.__init__(self, refTypeSub, node_name, **kwargs)
class WrappedCompoundDef(compounddefTypeSub, WrappedDoxygenNode):
"""A test wrapper of Doxygen compound definition."""
def __init__(self, **kwargs):
WrappedDoxygenNode.__init__(self, compounddefTypeSub, **kwargs)
class MockState:
def __init__(self, app):
env = sphinx.environment.BuildEnvironment(app)
env.setup(app)
env.temp_data['docname'] = 'mock-doc'
settings = frontend.OptionParser(
components=(parsers.rst.Parser,)).get_default_values()
settings.env = env
self.document = utils.new_document('', settings)
def nested_parse(self, content, content_offset, contentnode):
pass
class MockReporter:
def __init__(self):
pass
def warning(self, description, line):
pass
def debug(self, message):
pass
class MockStateMachine:
def __init__(self):
self.reporter = MockReporter()
def get_source_and_line(self, lineno: int):
if lineno is None:
lineno = 42
return 'mock-doc', lineno
class MockMaskFactory:
def __init__(self):
pass
def mask(self, node):
return node
class MockContext:
def __init__(self, app, node_stack, domain=None, options=[]):
self.domain = domain
self.node_stack = node_stack
self.directive_args = [
None, # name
None, # arguments
options, # options
None, # content
None, # lineno
None, # content_offset
None, # block_text
MockState(app), MockStateMachine()]
self.child = None
self.mask_factory = MockMaskFactory()
def create_child_context(self, attribute):
return self
class MockTargetHandler:
def __init__(self):
pass
def create_target(self, refid):
pass
class MockDocument:
def __init__(self):
self.reporter = MockReporter()
class MockCompoundParser:
"""
A compound parser reads a doxygen XML file from disk; this mock implements
a mapping of what would be the file name on disk to data using a dict.
"""
def __init__(self, compound_dict):
self.compound_dict = compound_dict
class MockFileData:
def __init__(self, compounddef):
self.compounddef = compounddef
def parse(self, compoundname):
compounddef = self.compound_dict[compoundname]
return self.MockFileData(compounddef)
class NodeFinder(nodes.NodeVisitor):
"""Find node with specified class name."""
def __init__(self, name, document):
nodes.NodeVisitor.__init__(self, document)
self.name = name
self.found_nodes = []
def unknown_visit(self, node):
if node.__class__.__name__ == self.name:
self.found_nodes.append(node)
def find_nodes(nodes, name):
"""Find all docutils nodes with specified class name in *nodes*."""
finder = NodeFinder(name, MockDocument())
for node in nodes:
node.walk(finder)
return finder.found_nodes
def find_node(nodes, name):
"""
Find a single docutils node with specified class name in *nodes*.
Throw an exception if there isn't exactly one such node.
"""
found_nodes = find_nodes(nodes, name)
if len(found_nodes) != 1:
raise Exception('the number of nodes {0} is {1}'.format(name, len(found_nodes)))
return found_nodes[0]
def test_find_nodes():
section = nodes.section()
foo = nodes.Text('foo')
desc = nodes.description()
bar = nodes.Text('bar')
section.children = [foo, desc, bar]
assert(find_nodes(section, 'description') == [desc])
assert(find_nodes([section, desc], 'description') == [desc, desc])
assert(find_nodes([], 'description') == [])
assert(find_nodes(section, 'unknown') == [])
assert(find_nodes(section, 'Text') == [foo, bar])
def check_exception(func, message):
"""Check if func() throws an exception with the specified message."""
exception = None
try:
func()
except Exception as e:
exception = e
print(str(exception))
assert exception and str(exception) == message
def test_find_node():
section = nodes.section()
foo = nodes.Text('foo')
desc = nodes.description()
bar = nodes.Text('bar')
section.children = [foo, desc, bar]
assert(find_node(section, 'description') == desc)
check_exception(lambda: find_node([section, desc], 'description'),
'the number of nodes description is 2')
check_exception(lambda: find_node([], 'description'),
'the number of nodes description is 0')
check_exception(lambda: find_node([section], 'unknown'),
'the number of nodes unknown is 0')
check_exception(lambda: find_node([section], 'Text'),
'the number of nodes Text is 2')
def render(app, member_def, domain=None, show_define_initializer=False,
compound_parser=None, options=[]):
"""Render Doxygen *member_def* with *renderer_class*."""
app.config.breathe_separate_member_pages = False
app.config.breathe_use_project_refids = False
app.config.breathe_show_define_initializer = show_define_initializer
app.config.breathe_order_parameters_first = False
app.config.breathe_debug_trace_directives = False
app.config.breathe_debug_trace_doxygen_ids = False
app.config.breathe_debug_trace_qualification = False
renderer = SphinxRenderer(app,
None, # project_info
[], # node_stack
None, # state
None, # document
MockTargetHandler(),
compound_parser,
OpenFilter())
renderer.context = MockContext(app, [member_def], domain, options)
return renderer.render(member_def)
def test_render_func(app):
member_def = WrappedMemberDef(kind='function', definition='void foo', type_='void', name='foo', argsstring='(int)',
virt='non-virtual',
param=[WrappedParam(type_=WrappedLinkedText(content_=[WrappedMixedContainer(value=u'int')]))])
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext().startswith('void')
if sphinx.version_info[0] < 4:
assert find_node(signature, 'desc_name')[0] == 'foo'
else:
n = find_node(signature, 'desc_name')[0]
assert isinstance(n, sphinx.addnodes.desc_sig_name)
assert len(n) == 1
assert n[0] == 'foo'
params = find_node(signature, 'desc_parameterlist')
assert len(params) == 1
param = params[0]
if sphinx.version_info[0] < 4:
assert param[0] == 'int'
else:
assert isinstance(param[0], sphinx.addnodes.desc_sig_keyword_type)
assert param[0][0] == 'int'
def test_render_typedef(app):
member_def = WrappedMemberDef(kind='typedef', definition='typedef int foo', type_='int', name='foo')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext() == 'typedef int foo'
def test_render_c_typedef(app):
member_def = WrappedMemberDef(kind='typedef', definition='typedef unsigned int bar', type_='unsigned int', name='bar')
signature = find_node(render(app, member_def, domain='c'), 'desc_signature')
assert signature.astext() == 'typedef unsigned int bar'
def test_render_c_function_typedef(app):
member_def = WrappedMemberDef(kind='typedef', definition='typedef void* (*voidFuncPtr)(float, int)',
type_='void* (*', name='voidFuncPtr', argsstring=')(float, int)')
signature = find_node(render(app, member_def, domain='c'), 'desc_signature')
assert signature.astext().startswith('typedef void *')
if sphinx.version_info[0] < 4:
params = find_node(signature, 'desc_parameterlist')
assert len(params) == 2
assert params[0].astext() == "float"
assert params[1].astext() == "int"
else:
# the use of desc_parameterlist in this case was not correct,
# it should only be used for a top-level function
pass
def test_render_using_alias(app):
member_def = WrappedMemberDef(kind='typedef', definition='using foo = int', type_='int', name='foo')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext() == 'using foo = int'
def test_render_const_func(app):
member_def = WrappedMemberDef(kind='function', definition='void f', type_='void', name='f', argsstring='() const',
virt='non-virtual', const='yes')
signature = find_node(render(app, member_def), 'desc_signature')
assert '_CPPv2NK1fEv' in signature['ids']
def test_render_lvalue_func(app):
member_def = WrappedMemberDef(kind='function', definition='void f', type_='void', name='f', argsstring='() &',
virt='non-virtual', refqual='lvalue')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext().endswith('&')
def test_render_rvalue_func(app):
member_def = WrappedMemberDef(kind='function', definition='void f', type_='void', name='f', argsstring='() &&',
virt='non-virtual', refqual='rvalue')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext().endswith('&&')
def test_render_const_lvalue_func(app):
member_def = WrappedMemberDef(kind='function', definition='void f', type_='void', name='f',argsstring='() const &',
virt='non-virtual', const='yes', refqual='lvalue')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext().endswith('const &')
def test_render_const_rvalue_func(app):
member_def = WrappedMemberDef(kind='function', definition='void f', type_='void', name='f', argsstring='() const &&',
virt='non-virtual', const='yes', refqual='rvalue')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext().endswith('const &&')
def test_render_variable_initializer(app):
member_def = WrappedMemberDef(kind='variable', definition='const int EOF', type_='const int', name='EOF',
initializer=WrappedMixedContainer(value=u'= -1'))
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext() == 'const int EOF = -1'
def test_render_define_initializer(app):
member_def = WrappedMemberDef(kind='define', name='MAX_LENGTH',
initializer=WrappedLinkedText(content_=[WrappedMixedContainer(value=u'100')]))
signature_w_initializer = find_node(render(app, member_def, show_define_initializer=True), 'desc_signature')
assert signature_w_initializer.astext() == 'MAX_LENGTH 100'
member_def_no_show = WrappedMemberDef(kind='define', name='MAX_LENGTH_NO_INITIALIZER',
initializer=WrappedLinkedText(content_=[WrappedMixedContainer(value=u'100')]))
signature_wo_initializer = find_node(render(app, member_def_no_show, show_define_initializer=False), 'desc_signature')
assert signature_wo_initializer.astext() == 'MAX_LENGTH_NO_INITIALIZER'
def test_render_define_no_initializer(app):
sphinx.addnodes.setup(app)
member_def = WrappedMemberDef(kind='define', name='USE_MILK')
signature = find_node(render(app, member_def), 'desc_signature')
assert signature.astext() == 'USE_MILK'
def test_render_innergroup(app):
refid = 'group__innergroup'
mock_compound_parser = MockCompoundParser({
refid: WrappedCompoundDef(kind='group',
compoundname='InnerGroup',
briefdescription='InnerGroup')
})
ref = WrappedRef('InnerGroup', refid=refid)
compound_def = WrappedCompoundDef(kind='group',
compoundname='OuterGroup',
briefdescription='OuterGroup',
innergroup=[ref])
assert all(el.astext() != 'InnerGroup'
for el in render(app, compound_def,
compound_parser=mock_compound_parser))
assert any(el.astext() == 'InnerGroup'
for el in render(app, compound_def,
compound_parser=mock_compound_parser,
options=['inner']))
def get_directive(app):
from breathe.directives import DoxygenFunctionDirective
from breathe.project import ProjectInfoFactory
from breathe.parser import DoxygenParserFactory
from breathe.finder.factory import FinderFactory
from docutils.statemachine import StringList
app.config.breathe_separate_member_pages = False
app.config.breathe_default_project = 'test_project'
app.config.breathe_domain_by_extension = {}
app.config.breathe_domain_by_file_pattern = {}
app.config.breathe_use_project_refids = False
project_info_factory = ProjectInfoFactory(app)
parser_factory = DoxygenParserFactory(app)
finder_factory = FinderFactory(app, parser_factory)
cls_args = ('doxygenclass', ['at::Tensor'],
{'members': '', 'protected-members': None, 'undoc-members': None},
StringList([], items=[]),
20, 24,
('.. doxygenclass:: at::Tensor\n :members:\n'
' :protected-members:\n :undoc-members:'),
MockState(app),
MockStateMachine(),
)
return DoxygenFunctionDirective(finder_factory, project_info_factory, parser_factory, *cls_args)
def get_matches(datafile):
from breathe.parser.compoundsuper import sectiondefType
from xml.dom import minidom
argsstrings = []
with open(os.path.join(os.path.dirname(__file__), 'data', datafile)) as fid:
xml = fid.read()
doc = minidom.parseString(xml)
sectiondef = sectiondefType.factory()
for child in doc.documentElement.childNodes:
sectiondef.buildChildren(child, 'memberdef')
if getattr(child, 'tagName', None) == 'memberdef':
# Get the argsstring function declaration
argsstrings.append(child.getElementsByTagName('argsstring')[0].childNodes[0].data)
matches = [[m, sectiondef] for m in sectiondef.memberdef]
return argsstrings, matches
def test_resolve_overrides(app):
# Test that multiple function overrides works
argsstrings, matches = get_matches('arange.xml')
cls = get_directive(app)
# Verify that the exact arguments returns one override
for args in argsstrings:
ast_param = cls._parse_args(args)
ret = cls._resolve_function(matches, ast_param, None)
def test_ellipsis(app):
argsstrings, matches = get_matches('ellipsis.xml')
cls = get_directive(app)
# Verify that parsing an ellipsis works
ast_param = cls._parse_args(argsstrings[0])
ret = cls._resolve_function(matches, ast_param, None)