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junitxml.py

"""Report test results in JUnit-XML format, for use with Jenkins and build
integration servers.

Based on initial code from Ross Lawley.

Output conforms to
https://github.com/jenkinsci/xunit-plugin/blob/master/src/main/resources/org/jenkinsci/plugins/xunit/types/model/xsd/junit-10.xsd
"""
import functools
import os
import platform
import re
import xml.etree.ElementTree as ET
from datetime import datetime
from typing import Callable
from typing import Dict
from typing import List
from typing import Match
from typing import Optional
from typing import Tuple
from typing import Union

import pytest
from _pytest import nodes
from _pytest import timing
from _pytest._code.code import ExceptionRepr
from _pytest._code.code import ReprFileLocation
from _pytest.config import Config
from _pytest.config import filename_arg
from _pytest.config.argparsing import Parser
from _pytest.fixtures import FixtureRequest
from _pytest.reports import TestReport
from _pytest.stash import StashKey
from _pytest.terminal import TerminalReporter

xml_key = StashKey["LogXML"]()

def bin_xml_escape(arg: object) -> str:
    r"""Visually escape invalid XML characters.

For example, transforms
        'hello\aworld\b'
    into
        'hello#x07world#x08'
    Note that the #xABs are *not* XML escapes - missing the ampersand &#xAB.
    The idea is to escape visually for the user rather than for XML itself.
    """

def repl(matchobj: Match[str]) -> str:
        i = ord(matchobj.group())
        if i <= 0xFF:
            return "#x%02X" % i
        else:
            return "#x%04X" % i

# The spec range of valid chars is:
    # Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
    # For an unknown(?) reason, we disallow #x7F (DEL) as well.
    illegal_xml_re = (
        "[^\u0009\u000A\u000D\u0020-\u007E\u0080-\uD7FF\uE000-\uFFFD\u10000-\u10FFFF]"
    )
    return re.sub(illegal_xml_re, repl, str(arg))

def merge_family(left, right) -> None:
    result = {}
    for kl, vl in left.items():
        for kr, vr in right.items():
            if not isinstance(vl, list):
                raise TypeError(type(vl))
            result[kl] = vl + vr
    left.update(result)

families = {}
families["_base"] = {"testcase": ["classname", "name"]}
families["_base_legacy"] = {"testcase": ["file", "line", "url"]}

# xUnit 1.x inherits legacy attributes.
families["xunit1"] = families["_base"].copy()
merge_family(families["xunit1"], families["_base_legacy"])

# xUnit 2.x uses strict base attributes.
families["xunit2"] = families["_base"]

class _NodeReporter:
    def __init__(self, nodeid: Union[str, TestReport], xml: "LogXML") -> None:
        self.id = nodeid
        self.xml = xml
        self.add_stats = self.xml.add_stats
        self.family = self.xml.family
        self.duration = 0.0
        self.properties: List[Tuple[str, str]] = []
        self.nodes: List[ET.Element] = []
        self.attrs: Dict[str, str] = {}

def append(self, node: ET.Element) -> None:
        self.xml.add_stats(node.tag)
        self.nodes.append(node)

def add_property(self, name: str, value: object) -> None:
        self.properties.append((str(name), bin_xml_escape(value)))

def add_attribute(self, name: str, value: object) -> None:
        self.attrs[str(name)] = bin_xml_escape(value)

def make_properties_node(self) -> Optional[ET.Element]:
        """Return a Junit node containing custom properties, if any."""
        if self.properties:
            properties = ET.Element("properties")
            for name, value in self.properties:
                properties.append(ET.Element("property", name=name, value=value))
            return properties
        return None

def record_testreport(self, testreport: TestReport) -> None:
        names = mangle_test_address(testreport.nodeid)
        existing_attrs = self.attrs
        classnames = names[:-1]
        if self.xml.prefix:
            classnames.insert(0, self.xml.prefix)
        attrs: Dict[str, str] = {
            "classname": ".".join(classnames),
            "name": bin_xml_escape(names[-1]),
            "file": testreport.location[0],
        }
        if testreport.location[1] is not None:
            attrs["line"] = str(testreport.location[1])
        if hasattr(testreport, "url"):
            attrs["url"] = testreport.url
        self.attrs = attrs
        self.attrs.update(existing_attrs)  # Restore any user-defined attributes.

# Preserve legacy testcase behavior.
        if self.family == "xunit1":
            return

# Filter out attributes not permitted by this test family.
        # Including custom attributes because they are not valid here.
        temp_attrs = {}
        for key in self.attrs.keys():
            if key in families[self.family]["testcase"]:
                temp_attrs[key] = self.attrs[key]
        self.attrs = temp_attrs

def to_xml(self) -> ET.Element:
        testcase = ET.Element("testcase", self.attrs, time="%.3f" % self.duration)
        properties = self.make_properties_node()
        if properties is not None:
            testcase.append(properties)
        testcase.extend(self.nodes)
        return testcase

def _add_simple(self, tag: str, message: str, data: Optional[str] = None) -> None:
        node = ET.Element(tag, message=message)
        node.text = bin_xml_escape(data)
        self.append(node)

def write_captured_output(self, report: TestReport) -> None:
        if not self.xml.log_passing_tests and report.passed:
            return

content_out = report.capstdout
        content_log = report.caplog
        content_err = report.capstderr
        if self.xml.logging == "no":
            return
        content_all = ""
        if self.xml.logging in ["log", "all"]:
            content_all = self._prepare_content(content_log, " Captured Log ")
        if self.xml.logging in ["system-out", "out-err", "all"]:
            content_all += self._prepare_content(content_out, " Captured Out ")
            self._write_content(report, content_all, "system-out")
            content_all = ""
        if self.xml.logging in ["system-err", "out-err", "all"]:
            content_all += self._prepare_content(content_err, " Captured Err ")
            self._write_content(report, content_all, "system-err")
            content_all = ""
        if content_all:
            self._write_content(report, content_all, "system-out")

def _prepare_content(self, content: str, header: str) -> str:
        return "\n".join([header.center(80, "-"), content, ""])

def _write_content(self, report: TestReport, content: str, jheader: str) -> None:
        tag = ET.Element(jheader)
        tag.text = bin_xml_escape(content)
        self.append(tag)

def append_pass(self, report: TestReport) -> None:
        self.add_stats("passed")

def append_failure(self, report: TestReport) -> None:
        # msg = str(report.longrepr.reprtraceback.extraline)
        if hasattr(report, "wasxfail"):
            self._add_simple("skipped", "xfail-marked test passes unexpectedly")
        else:
            assert report.longrepr is not None
            reprcrash: Optional[ReprFileLocation] = getattr(
                report.longrepr, "reprcrash", None
            )
            if reprcrash is not None:
                message = reprcrash.message
            else:
                message = str(report.longrepr)
            message = bin_xml_escape(message)
            self._add_simple("failure", message, str(report.longrepr))

def append_collect_error(self, report: TestReport) -> None:
        # msg = str(report.longrepr.reprtraceback.extraline)
        assert report.longrepr is not None
        self._add_simple("error", "collection failure", str(report.longrepr))

def append_collect_skipped(self, report: TestReport) -> None:
        self._add_simple("skipped", "collection skipped", str(report.longrepr))

def append_error(self, report: TestReport) -> None:
        assert report.longrepr is not None
        reprcrash: Optional[ReprFileLocation] = getattr(
            report.longrepr, "reprcrash", None
        )
        if reprcrash is not None:
            reason = reprcrash.message
        else:
            reason = str(report.longrepr)

if report.when == "teardown":
            msg = f'failed on teardown with "{reason}"'
        else:
            msg = f'failed on setup with "{reason}"'
        self._add_simple("error", bin_xml_escape(msg), str(report.longrepr))

def append_skipped(self, report: TestReport) -> None:
        if hasattr(report, "wasxfail"):
            xfailreason = report.wasxfail
            if xfailreason.startswith("reason: "):
                xfailreason = xfailreason[8:]
            xfailreason = bin_xml_escape(xfailreason)
            skipped = ET.Element("skipped", type="pytest.xfail", message=xfailreason)
            self.append(skipped)
        else:
            assert isinstance(report.longrepr, tuple)
            filename, lineno, skipreason = report.longrepr
            if skipreason.startswith("Skipped: "):
                skipreason = skipreason[9:]
            details = f"{filename}:{lineno}: {skipreason}"

skipped = ET.Element("skipped", type="pytest.skip", message=skipreason)
            skipped.text = bin_xml_escape(details)
            self.append(skipped)
            self.write_captured_output(report)

def finalize(self) -> None:
        data = self.to_xml()
        self.__dict__.clear()
        # Type ignored because mypy doesn't like overriding a method.
        # Also the return value doesn't match...
        self.to_xml = lambda: data  # type: ignore[assignment]

def _warn_incompatibility_with_xunit2(
    request: FixtureRequest, fixture_name: str
) -> None:
    """Emit a PytestWarning about the given fixture being incompatible with newer xunit revisions."""
    from _pytest.warning_types import PytestWarning

xml = request.config.stash.get(xml_key, None)
    if xml is not None and xml.family not in ("xunit1", "legacy"):
        request.node.warn(
            PytestWarning(
                "{fixture_name} is incompatible with junit_family '{family}' (use 'legacy' or 'xunit1')".format(
                    fixture_name=fixture_name, family=xml.family
                )
            )
        )

@pytest.fixture
def record_property(request: FixtureRequest) -> Callable[[str, object], None]:
    """Add extra properties to the calling test.

User properties become part of the test report and are available to the
    configured reporters, like JUnit XML.

The fixture is callable with ``name, value``. The value is automatically
    XML-encoded.

Example::

def test_function(record_property):
            record_property("example_key", 1)
    """
    _warn_incompatibility_with_xunit2(request, "record_property")

def append_property(name: str, value: object) -> None:
        request.node.user_properties.append((name, value))

return append_property

@pytest.fixture
def record_xml_attribute(request: FixtureRequest) -> Callable[[str, object], None]:
    """Add extra xml attributes to the tag for the calling test.

The fixture is callable with ``name, value``. The value is
    automatically XML-encoded.
    """
    from _pytest.warning_types import PytestExperimentalApiWarning

request.node.warn(
        PytestExperimentalApiWarning("record_xml_attribute is an experimental feature")
    )

_warn_incompatibility_with_xunit2(request, "record_xml_attribute")

# Declare noop
    def add_attr_noop(name: str, value: object) -> None:
        pass

attr_func = add_attr_noop

xml = request.config.stash.get(xml_key, None)
    if xml is not None:
        node_reporter = xml.node_reporter(request.node.nodeid)
        attr_func = node_reporter.add_attribute

return attr_func

def _check_record_param_type(param: str, v: str) -> None:
    """Used by record_testsuite_property to check that the given parameter name is of the proper
    type."""
    __tracebackhide__ = True
    if not isinstance(v, str):
        msg = "{param} parameter needs to be a string, but {g} given"  # type: ignore[unreachable]
        raise TypeError(msg.format(param=param, g=type(v).__name__))

@pytest.fixture(scope="session")
def record_testsuite_property(request: FixtureRequest) -> Callable[[str, object], None]:
    """Record a new ``<property>`` tag as child of the root ``<testsuite>``.

This is suitable to writing global information regarding the entire test
    suite, and is compatible with ``xunit2`` JUnit family.

This is a ``session``-scoped fixture which is called with ``(name, value)``. Example:

.. code-block:: python

def test_foo(record_testsuite_property):
            record_testsuite_property("ARCH", "PPC")
            record_testsuite_property("STORAGE_TYPE", "CEPH")

:param name:
        The property name.
    :param value:
        The property value. Will be converted to a string.

.. warning::

Currently this fixture **does not work** with the
        `pytest-xdist <https://github.com/pytest-dev/pytest-xdist>`__ plugin. See
        :issue:`7767` for details.
    """

__tracebackhide__ = True

def record_func(name: str, value: object) -> None:
        """No-op function in case --junitxml was not passed in the command-line."""
        __tracebackhide__ = True
        _check_record_param_type("name", name)

xml = request.config.stash.get(xml_key, None)
    if xml is not None:
        record_func = xml.add_global_property  # noqa
    return record_func

def pytest_addoption(parser: Parser) -> None:
    group = parser.getgroup("terminal reporting")
    group.addoption(
        "--junitxml",
        "--junit-xml",
        action="store",
        dest="xmlpath",
        metavar="path",
        type=functools.partial(filename_arg, optname="--junitxml"),
        default=None,
        help="Create junit-xml style report file at given path",
    )
    group.addoption(
        "--junitprefix",
        "--junit-prefix",
        action="store",
        metavar="str",
        default=None,
        help="Prepend prefix to classnames in junit-xml output",
    )
    parser.addini(
        "junit_suite_name", "Test suite name for JUnit report", default="pytest"
    )
    parser.addini(
        "junit_logging",
        "Write captured log messages to JUnit report: "
        "one of no|log|system-out|system-err|out-err|all",
        default="no",
    )
    parser.addini(
        "junit_log_passing_tests",
        "Capture log information for passing tests to JUnit report: ",
        type="bool",
        default=True,
    )
    parser.addini(
        "junit_duration_report",
        "Duration time to report: one of total|call",
        default="total",
    )  # choices=['total', 'call'])
    parser.addini(
        "junit_family",
        "Emit XML for schema: one of legacy|xunit1|xunit2",
        default="xunit2",
    )

def pytest_configure(config: Config) -> None:
    xmlpath = config.option.xmlpath
    # Prevent opening xmllog on worker nodes (xdist).
    if xmlpath and not hasattr(config, "workerinput"):
        junit_family = config.getini("junit_family")
        config.stash[xml_key] = LogXML(
            xmlpath,
            config.option.junitprefix,
            config.getini("junit_suite_name"),
            config.getini("junit_logging"),
            config.getini("junit_duration_report"),
            junit_family,
            config.getini("junit_log_passing_tests"),
        )
        config.pluginmanager.register(config.stash[xml_key])

def pytest_unconfigure(config: Config) -> None:
    xml = config.stash.get(xml_key, None)
    if xml:
        del config.stash[xml_key]
        config.pluginmanager.unregister(xml)

def mangle_test_address(address: str) -> List[str]:
    path, possible_open_bracket, params = address.partition("[")
    names = path.split("::")
    # Convert file path to dotted path.
    names[0] = names[0].replace(nodes.SEP, ".")
    names[0] = re.sub(r"\.py$", "", names[0])
    # Put any params back.
    names[-1] += possible_open_bracket + params
    return names

class LogXML:
    def __init__(
        self,
        logfile,
        prefix: Optional[str],
        suite_name: str = "pytest",
        logging: str = "no",
        report_duration: str = "total",
        family="xunit1",
        log_passing_tests: bool = True,
    ) -> None:
        logfile = os.path.expanduser(os.path.expandvars(logfile))
        self.logfile = os.path.normpath(os.path.abspath(logfile))
        self.prefix = prefix
        self.suite_name = suite_name
        self.logging = logging
        self.log_passing_tests = log_passing_tests
        self.report_duration = report_duration
        self.family = family
        self.stats: Dict[str, int] = dict.fromkeys(
            ["error", "passed", "failure", "skipped"], 0
        )
        self.node_reporters: Dict[
            Tuple[Union[str, TestReport], object], _NodeReporter
        ] = {}
        self.node_reporters_ordered: List[_NodeReporter] = []
        self.global_properties: List[Tuple[str, str]] = []

# List of reports that failed on call but teardown is pending.
        self.open_reports: List[TestReport] = []
        self.cnt_double_fail_tests = 0

# Replaces convenience family with real family.
        if self.family == "legacy":
            self.family = "xunit1"

def finalize(self, report: TestReport) -> None:
        nodeid = getattr(report, "nodeid", report)
        # Local hack to handle xdist report order.
        workernode = getattr(report, "node", None)
        reporter = self.node_reporters.pop((nodeid, workernode))
        if reporter is not None:
            reporter.finalize()

def node_reporter(self, report: Union[TestReport, str]) -> _NodeReporter:
        nodeid: Union[str, TestReport] = getattr(report, "nodeid", report)
        # Local hack to handle xdist report order.
        workernode = getattr(report, "node", None)

key = nodeid, workernode

if key in self.node_reporters:
            # TODO: breaks for --dist=each
            return self.node_reporters[key]

reporter = _NodeReporter(nodeid, self)

self.node_reporters[key] = reporter
        self.node_reporters_ordered.append(reporter)

return reporter

def add_stats(self, key: str) -> None:
        if key in self.stats:
            self.stats[key] += 1

def _opentestcase(self, report: TestReport) -> _NodeReporter:
        reporter = self.node_reporter(report)
        reporter.record_testreport(report)
        return reporter

def pytest_runtest_logreport(self, report: TestReport) -> None:
        """Handle a setup/call/teardown report, generating the appropriate
        XML tags as necessary.

Note: due to plugins like xdist, this hook may be called in interlaced
        order with reports from other nodes. For example:

Usual call order:
            -> setup node1
            -> call node1
            -> teardown node1
            -> setup node2
            -> call node2
            -> teardown node2

Possible call order in xdist:
            -> setup node1
            -> call node1
            -> setup node2
            -> call node2
            -> teardown node2
            -> teardown node1
        """
        close_report = None
        if report.passed:
            if report.when == "call":  # ignore setup/teardown
                reporter = self._opentestcase(report)
                reporter.append_pass(report)
        elif report.failed:
            if report.when == "teardown":
                # The following vars are needed when xdist plugin is used.
                report_wid = getattr(report, "worker_id", None)
                report_ii = getattr(report, "item_index", None)
                close_report = next(
                    (
                        rep
                        for rep in self.open_reports
                        if (
                            rep.nodeid == report.nodeid
                            and getattr(rep, "item_index", None) == report_ii
                            and getattr(rep, "worker_id", None) == report_wid
                        )
                    ),
                    None,
                )
                if close_report:
                    # We need to open new testcase in case we have failure in
                    # call and error in teardown in order to follow junit
                    # schema.
                    self.finalize(close_report)
                    self.cnt_double_fail_tests += 1
            reporter = self._opentestcase(report)
            if report.when == "call":
                reporter.append_failure(report)
                self.open_reports.append(report)
                if not self.log_passing_tests:
                    reporter.write_captured_output(report)
            else:
                reporter.append_error(report)
        elif report.skipped:
            reporter = self._opentestcase(report)
            reporter.append_skipped(report)
        self.update_testcase_duration(report)
        if report.when == "teardown":
            reporter = self._opentestcase(report)
            reporter.write_captured_output(report)

for propname, propvalue in report.user_properties:
                reporter.add_property(propname, str(propvalue))

self.finalize(report)
            report_wid = getattr(report, "worker_id", None)
            report_ii = getattr(report, "item_index", None)
            close_report = next(
                (
                    rep
                    for rep in self.open_reports
                    if (
                        rep.nodeid == report.nodeid
                        and getattr(rep, "item_index", None) == report_ii
                        and getattr(rep, "worker_id", None) == report_wid
                    )
                ),
                None,
            )
            if close_report:
                self.open_reports.remove(close_report)

def update_testcase_duration(self, report: TestReport) -> None:
        """Accumulate total duration for nodeid from given report and update
        the Junit.testcase with the new total if already created."""
        if self.report_duration == "total" or report.when == self.report_duration:
            reporter = self.node_reporter(report)
            reporter.duration += getattr(report, "duration", 0.0)

def pytest_collectreport(self, report: TestReport) -> None:
        if not report.passed:
            reporter = self._opentestcase(report)
            if report.failed:
                reporter.append_collect_error(report)
            else:
                reporter.append_collect_skipped(report)

def pytest_internalerror(self, excrepr: ExceptionRepr) -> None:
        reporter = self.node_reporter("internal")
        reporter.attrs.update(classname="pytest", name="internal")
        reporter._add_simple("error", "internal error", str(excrepr))

def pytest_sessionstart(self) -> None:
        self.suite_start_time = timing.time()

def pytest_sessionfinish(self) -> None:
        dirname = os.path.dirname(os.path.abspath(self.logfile))
        # exist_ok avoids filesystem race conditions between checking path existence and requesting creation
        os.makedirs(dirname, exist_ok=True)

with open(self.logfile, "w", encoding="utf-8") as logfile:
            suite_stop_time = timing.time()
            suite_time_delta = suite_stop_time - self.suite_start_time

numtests = (
                self.stats["passed"]
                + self.stats["failure"]
                + self.stats["skipped"]
                + self.stats["error"]
                - self.cnt_double_fail_tests
            )
            logfile.write('<?xml version="1.0" encoding="utf-8"?>')

suite_node = ET.Element(
                "testsuite",
                name=self.suite_name,
                errors=str(self.stats["error"]),
                failures=str(self.stats["failure"]),
                skipped=str(self.stats["skipped"]),
                tests=str(numtests),
                time="%.3f" % suite_time_delta,
                timestamp=datetime.fromtimestamp(self.suite_start_time).isoformat(),
                hostname=platform.node(),
            )
            global_properties = self._get_global_properties_node()
            if global_properties is not None:
                suite_node.append(global_properties)
            for node_reporter in self.node_reporters_ordered:
                suite_node.append(node_reporter.to_xml())
            testsuites = ET.Element("testsuites")
            testsuites.append(suite_node)
            logfile.write(ET.tostring(testsuites, encoding="unicode"))

def pytest_terminal_summary(self, terminalreporter: TerminalReporter) -> None:
        terminalreporter.write_sep("-", f"generated xml file: {self.logfile}")

def add_global_property(self, name: str, value: object) -> None:
        __tracebackhide__ = True
        _check_record_param_type("name", name)
        self.global_properties.append((name, bin_xml_escape(value)))

def _get_global_properties_node(self) -> Optional[ET.Element]:
        """Return a Junit node containing custom properties, if any."""
        if self.global_properties:
            properties = ET.Element("properties")
            for name, value in self.global_properties:
                properties.append(ET.Element("property", name=name, value=value))
            return properties
        return None

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