WIP: Add script that combines XML files into one

dev_scripts/merge_large_tests_results.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+
+import glob
+import sys
+import xml.etree.ElementTree as ET
+
+
+def combine_xmls(xml_files, output_file):
+    # Initialize accumulators for summary numbers
+    total_errors = 0
+    total_failures = 0
+    total_skipped = 0
+    total_tests = 0
+    total_time = 0.0
+
+    # Create the root element for the output XML
+    testsuites_elem = ET.Element("testsuites")
+
+    # Prepare a base testsuite element that will contain all testcases
+    combined_testsuite = ET.Element("testsuite", name="combined")
+
+    for xml_file in xml_files:
+        print(f"Parsing '{xml_file}'")
+
+        try:
+            tree = ET.parse(xml_file)
+        except ET.ParseError as e:
+            print(f"Error parsing {xml_file}: {e}")
+            continue
+
+        root = tree.getroot()
+        # Assuming structure: <testsuites><testsuite ...>
+        testsuite_elem = root.find("testsuite")
+        if testsuite_elem is None:
+            print(f"No <testsuite> element found in {xml_file}")
+            continue
+
+        # Sum up the attributes from each testsuite.
+        total_errors += int(testsuite_elem.attrib.get("errors", "0"))
+        total_failures += int(testsuite_elem.attrib.get("failures", "0"))
+        total_skipped += int(testsuite_elem.attrib.get("skipped", "0"))
+        total_tests += int(testsuite_elem.attrib.get("tests", "0"))
+        total_time += float(testsuite_elem.attrib.get("time", "0.0"))
+
+        # Move all <testcase> subelements to our combined testsuite.
+        for testcase in testsuite_elem.findall("testcase"):
+            combined_testsuite.append(testcase)
+
+    # Update the attributes of the combined testsuite
+    combined_testsuite.attrib["errors"] = str(total_errors)
+    combined_testsuite.attrib["failures"] = str(total_failures)
+    combined_testsuite.attrib["skipped"] = str(total_skipped)
+    combined_testsuite.attrib["tests"] = str(total_tests)
+    combined_testsuite.attrib["time"] = str(total_time)
+    # Optionally add a timestamp or hostname you want to combine from the originals.
+
+    # Append the combined testsuite to the testsuites root element.
+    testsuites_elem.append(combined_testsuite)
+
+    # Write out the combined XML file.
+    tree_out = ET.ElementTree(testsuites_elem)
+    tree_out.write(output_file, encoding="utf-8", xml_declaration=True)
+    print(f"Combined XML written to {output_file}")
+
+
+if __name__ == "__main__":
+    # For instance, if all XML files are stored in the "xml_results" directory
+    folder = sys.argv[1]
+    output = sys.argv[2]
+    print(
+        f"Will search for XML files in '{folder}' and create a combined XML in"
+        f" '{output}'"
+    )
+    xml_files = glob.glob(f"{folder}/*.xml")
+    print("Found len(list(xml_files)) XML file(s)")
+    combine_xmls(xml_files, output)