ci: test result summarization

Author: ppfeister

devel/summarize_site_validation.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+# This module summarizes the results of site validation tests queued by
+# workflow validate_modified_targets for presentation in Issue comments.
+
+from defusedxml import ElementTree as ET
+import sys
+from pathlib import Path
+
+def summarize_junit_xml(xml_path: Path) -> str:
+    tree = ET.parse(xml_path)
+    root = tree.getroot()
+    suite = root.find('testsuite')
+
+    pass_message: str = ":heavy_check_mark:   Pass"
+    fail_message: str = ":x:   Fail"
+
+    if suite is None:
+        raise ValueError("Invalid JUnit XML: No testsuite found")
+
+    summary_lines: list[str] = []
+    summary_lines.append("#### Automatic validation of changes\n")
+    summary_lines.append("| | F- Check | F+ Check |")
+    summary_lines.append("|---|---|---|")
+
+    failures = int(suite.get('failures', 0))
+    errors_detected: bool = False
+
+    results: dict[str, dict[str, str]] = {}
+
+    for testcase in suite.findall('testcase'):
+        test_name = testcase.get('name').split('[')[0]
+        site_name = testcase.get('name').split('[')[1].rstrip(']')
+        failure = testcase.find('failure')
+        error = testcase.find('error')
+
+        if site_name not in results:
+            results[site_name] = {}
+
+        if test_name == "test_false_neg":
+            results[site_name]['F- Check'] = pass_message if failure is None and error is None else fail_message
+        elif test_name == "test_false_pos":
+            results[site_name]['F+ Check'] = pass_message if failure is None and error is None else fail_message
+
+        if error is not None:
+            errors_detected = True
+
+    for result in results:
+        summary_lines.append(f"| {result} | {results[result].get('F- Check', 'Error!')} | {results[result].get('F+ Check', 'Error!')} |")
+
+    if failures > 0:
+        summary_lines.append("\n___\n" +
+            "\nFailures were detected on at least one updated target. Commits containing accuracy failures" +
+            " will often not be merged (unless a rationale is provided, such as false negatives due to regional differences).")
+
+    if errors_detected:
+        summary_lines.append("\n___\n" +
+            "\n**Errors were detected during validation. Please review the workflow logs.**")
+
+    return "\n".join(summary_lines)
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: summarize_site_validation.py <junit-xml-file>")
+        sys.exit(1)
+
+    xml_path: Path = Path(sys.argv[1])
+    if not xml_path.is_file():
+        print(f"Error: File '{xml_path}' does not exist.")
+        sys.exit(1)
+
+    summary: str = summarize_junit_xml(xml_path)
+    print(summary)