import subprocess
import os
import xml.etree.ElementTree as ET
import unittest
class TestPytestJUnitReport(unittest.TestCase):
def test_generate_junit_xml_report(self):
# Run pytest with JUnit XML output
result = subprocess.run(['pytest', '--junitxml=report.xml', 'test_sample.py'], capture_output=True, text=True)
# Assert pytest ran successfully
self.assertEqual(result.returncode, 0, f"pytest failed with output:\n{result.stdout}\n{result.stderr}")
# Assert report.xml file exists
self.assertTrue(os.path.exists('report.xml'), 'report.xml file was not created')
# Parse XML and check for testsuite and testcase elements
tree = ET.parse('report.xml')
root = tree.getroot()
self.assertEqual(root.tag, 'testsuite', 'Root element is not <testsuite>')
testcases = root.findall('testcase')
self.assertGreater(len(testcases), 0, 'No <testcase> elements found in report.xml')
if __name__ == '__main__':
unittest.main()This script uses Python's unittest framework to automate the manual test case steps.
First, it runs pytest with the --junitxml=report.xml option using subprocess.run. This generates the JUnit XML report file.
Then, it checks the return code to ensure pytest ran successfully.
Next, it verifies that the report.xml file was created in the current directory.
Finally, it parses the XML file using xml.etree.ElementTree to confirm the root element is <testsuite> and that there is at least one <testcase> element inside, ensuring the report is valid and contains test results.
This approach follows best practices by using subprocess for running commands, checking outputs, and parsing XML to validate the report content.
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