Add unit test run and coverage report generation (#3011)

* Add unit test run and coverage report generation

* fix

* fix: upload coverage report failure

* fix

* update

* fix

* fix

* update

scripts/generate_diff_coverage_xml.py

@@ -0,0 +1,71 @@
+import re
+import sys
+import xml.etree.ElementTree as ET
+from collections import defaultdict
+
+
+def get_changed_lines_from_file(diff_txt_path):
+    """Parse diff.txt to get changed lines per file"""
+    file_changes = defaultdict(set)
+    current_file = None
+
+    with open(diff_txt_path, encoding="utf-8") as f:
+        for line in f:
+            if line.startswith("+++ b/"):
+                current_file = line[6:].strip()
+            elif line.startswith("@@"):
+                match = re.search(r"\+(\d+)(?:,(\d+))?", line)
+                if match and current_file:
+                    start_line = int(match.group(1))
+                    line_count = int(match.group(2) or "1")
+                    for i in range(start_line, start_line + line_count):
+                        file_changes[current_file].add(i)
+    return file_changes
+
+
+def generate_diff_coverage(original_xml, diff_lines, output_xml):
+    """Generate a new coverage.xml containing only changed lines"""
+    tree = ET.parse(original_xml)
+    root = tree.getroot()
+
+    for package in root.findall(".//packages/package"):
+        classes = package.find("classes")
+        new_classes = ET.Element("classes")
+
+        for cls in classes.findall("class"):
+            filename = cls.attrib["filename"]
+            if filename not in diff_lines:
+                continue
+
+            lines = cls.find("lines")
+            new_lines = ET.Element("lines")
+
+            for line in lines.findall("line"):
+                line_num = int(line.attrib["number"])
+                if line_num in diff_lines[filename]:
+                    new_lines.append(line)
+
+            if len(new_lines) > 0:
+                new_cls = ET.Element("class", cls.attrib)
+                new_cls.append(new_lines)
+                new_classes.append(new_cls)
+
+        package.remove(classes)
+        package.append(new_classes)
+
+    ET.indent(tree, space="  ")
+    tree.write(output_xml, encoding="utf-8", xml_declaration=True)
+    print(f"Generated diff coverage file: {output_xml}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print("Usage: python generate_diff_coverage_xml.py diff.txt coverage.xml")
+        sys.exit(1)
+
+    diff_path = sys.argv[1]
+    coverage_path = sys.argv[2]
+    output_path = "diff_coverage.xml"
+
+    diff_lines = get_changed_lines_from_file(diff_path)
+    generate_diff_coverage(coverage_path, diff_lines, output_path)