llvm-project/.ci/generate_test_report.py
David Spickett 3b8426d340 [ci] Fix unit tests for test report generator
Last time I fixed a bug here I forgot to update them.
2024-11-28 09:26:30 +00:00

424 lines
13 KiB
Python

# Script to parse many JUnit XML result files and send a report to the buildkite
# agent as an annotation.
#
# To run the unittests:
# python3 -m unittest discover -p generate_test_report.py
import argparse
import subprocess
import unittest
from io import StringIO
from junitparser import JUnitXml, Failure
from textwrap import dedent
def junit_from_xml(xml):
return JUnitXml.fromfile(StringIO(xml))
class TestReports(unittest.TestCase):
def test_title_only(self):
self.assertEqual(_generate_report("Foo", []), ("", "success"))
def test_no_tests_in_testsuite(self):
self.assertEqual(
_generate_report(
"Foo",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="0.00">
<testsuite name="Empty" tests="0" failures="0" skipped="0" time="0.00">
</testsuite>
</testsuites>"""
)
)
],
),
("", None),
)
def test_no_failures(self):
self.assertEqual(
_generate_report(
"Foo",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="0.00">
<testsuite name="Passed" tests="1" failures="0" skipped="0" time="0.00">
<testcase classname="Bar/test_1" name="test_1" time="0.00"/>
</testsuite>
</testsuites>"""
)
)
],
),
(
dedent(
"""\
# Foo
* 1 test passed"""
),
"success",
),
)
def test_report_single_file_single_testsuite(self):
self.assertEqual(
_generate_report(
"Foo",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="8.89">
<testsuite name="Bar" tests="4" failures="2" skipped="1" time="410.63">
<testcase classname="Bar/test_1" name="test_1" time="0.02"/>
<testcase classname="Bar/test_2" name="test_2" time="0.02">
<skipped message="Reason"/>
</testcase>
<testcase classname="Bar/test_3" name="test_3" time="0.02">
<failure><![CDATA[Output goes here]]></failure>
</testcase>
<testcase classname="Bar/test_4" name="test_4" time="0.02">
<failure><![CDATA[Other output goes here]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
)
],
),
(
dedent(
"""\
# Foo
* 1 test passed
* 1 test skipped
* 2 tests failed
## Failed Tests
(click to see output)
### Bar
<details>
<summary>Bar/test_3/test_3</summary>
```
Output goes here
```
</details>
<details>
<summary>Bar/test_4/test_4</summary>
```
Other output goes here
```
</details>"""
),
"error",
),
)
MULTI_SUITE_OUTPUT = (
dedent(
"""\
# ABC and DEF
* 1 test passed
* 1 test skipped
* 2 tests failed
## Failed Tests
(click to see output)
### ABC
<details>
<summary>ABC/test_2/test_2</summary>
```
ABC/test_2 output goes here
```
</details>
### DEF
<details>
<summary>DEF/test_2/test_2</summary>
```
DEF/test_2 output goes here
```
</details>"""
),
"error",
)
def test_report_single_file_multiple_testsuites(self):
self.assertEqual(
_generate_report(
"ABC and DEF",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="8.89">
<testsuite name="ABC" tests="2" failures="1" skipped="0" time="410.63">
<testcase classname="ABC/test_1" name="test_1" time="0.02"/>
<testcase classname="ABC/test_2" name="test_2" time="0.02">
<failure><![CDATA[ABC/test_2 output goes here]]></failure>
</testcase>
</testsuite>
<testsuite name="DEF" tests="2" failures="1" skipped="1" time="410.63">
<testcase classname="DEF/test_1" name="test_1" time="0.02">
<skipped message="reason"/>
</testcase>
<testcase classname="DEF/test_2" name="test_2" time="0.02">
<failure><![CDATA[DEF/test_2 output goes here]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
)
],
),
self.MULTI_SUITE_OUTPUT,
)
def test_report_multiple_files_multiple_testsuites(self):
self.assertEqual(
_generate_report(
"ABC and DEF",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="8.89">
<testsuite name="ABC" tests="2" failures="1" skipped="0" time="410.63">
<testcase classname="ABC/test_1" name="test_1" time="0.02"/>
<testcase classname="ABC/test_2" name="test_2" time="0.02">
<failure><![CDATA[ABC/test_2 output goes here]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
),
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="8.89">
<testsuite name="DEF" tests="2" failures="1" skipped="1" time="410.63">
<testcase classname="DEF/test_1" name="test_1" time="0.02">
<skipped message="reason"/>
</testcase>
<testcase classname="DEF/test_2" name="test_2" time="0.02">
<failure><![CDATA[DEF/test_2 output goes here]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
),
],
),
self.MULTI_SUITE_OUTPUT,
)
def test_report_dont_list_failures(self):
self.assertEqual(
_generate_report(
"Foo",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="0.02">
<testsuite name="Bar" tests="1" failures="1" skipped="0" time="0.02">
<testcase classname="Bar/test_1" name="test_1" time="0.02">
<failure><![CDATA[Output goes here]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
)
],
list_failures=False,
),
(
dedent(
"""\
# Foo
* 1 test failed
Failed tests and their output was too large to report. Download the build's log file to see the details."""
),
"error",
),
)
def test_report_size_limit(self):
self.assertEqual(
_generate_report(
"Foo",
[
junit_from_xml(
dedent(
"""\
<?xml version="1.0" encoding="UTF-8"?>
<testsuites time="0.02">
<testsuite name="Bar" tests="1" failures="1" skipped="0" time="0.02">
<testcase classname="Bar/test_1" name="test_1" time="0.02">
<failure><![CDATA[Some long output goes here...]]></failure>
</testcase>
</testsuite>
</testsuites>"""
)
)
],
size_limit=128,
),
(
dedent(
"""\
# Foo
* 1 test failed
Failed tests and their output was too large to report. Download the build's log file to see the details."""
),
"error",
),
)
# Set size_limit to limit the byte size of the report. The default is 1MB as this
# is the most that can be put into an annotation. If the generated report exceeds
# this limit and failures are listed, it will be generated again without failures
# listed. This minimal report will always fit into an annotation.
# If include failures is False, total number of test will be reported but their names
# and output will not be.
def _generate_report(title, junit_objects, size_limit=1024 * 1024, list_failures=True):
if not junit_objects:
return ("", "success")
failures = {}
tests_run = 0
tests_skipped = 0
tests_failed = 0
for results in junit_objects:
for testsuite in results:
tests_run += testsuite.tests
tests_skipped += testsuite.skipped
tests_failed += testsuite.failures
for test in testsuite:
if (
not test.is_passed
and test.result
and isinstance(test.result[0], Failure)
):
if failures.get(testsuite.name) is None:
failures[testsuite.name] = []
failures[testsuite.name].append(
(test.classname + "/" + test.name, test.result[0].text)
)
if not tests_run:
return ("", None)
style = "error" if tests_failed else "success"
report = [f"# {title}", ""]
tests_passed = tests_run - tests_skipped - tests_failed
def plural(num_tests):
return "test" if num_tests == 1 else "tests"
if tests_passed:
report.append(f"* {tests_passed} {plural(tests_passed)} passed")
if tests_skipped:
report.append(f"* {tests_skipped} {plural(tests_skipped)} skipped")
if tests_failed:
report.append(f"* {tests_failed} {plural(tests_failed)} failed")
if not list_failures:
report.extend(
[
"",
"Failed tests and their output was too large to report. "
"Download the build's log file to see the details.",
]
)
elif failures:
report.extend(["", "## Failed Tests", "(click to see output)"])
for testsuite_name, failures in failures.items():
report.extend(["", f"### {testsuite_name}"])
for name, output in failures:
report.extend(
[
"<details>",
f"<summary>{name}</summary>",
"",
"```",
output,
"```",
"</details>",
]
)
report = "\n".join(report)
if len(report.encode("utf-8")) > size_limit:
return _generate_report(title, junit_objects, size_limit, list_failures=False)
return report, style
def generate_report(title, junit_files):
return _generate_report(title, [JUnitXml.fromfile(p) for p in junit_files])
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument(
"title", help="Title of the test report, without Markdown formatting."
)
parser.add_argument("context", help="Annotation context to write to.")
parser.add_argument("junit_files", help="Paths to JUnit report files.", nargs="*")
args = parser.parse_args()
report, style = generate_report(args.title, args.junit_files)
if report:
p = subprocess.Popen(
[
"buildkite-agent",
"annotate",
"--context",
args.context,
"--style",
style,
],
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
)
# The report can be larger than the buffer for command arguments so we send
# it over stdin instead.
_, err = p.communicate(input=report)
if p.returncode:
raise RuntimeError(f"Failed to send report to buildkite-agent:\n{err}")