Mute: TESTOWNERS normalization (#37801)

2 files changed, 33 insertions, 7 deletions

diff --git a/.github/scripts/analytics/testowners_utils.py b/.github/scripts/analytics/testowners_utils.py
index ed14ef5364e..12b28f39b73 100644
--- a/.github/scripts/analytics/testowners_utils.py
+++ b/.github/scripts/analytics/testowners_utils.py
@@ -1,13 +1,37 @@
-"""TESTOWNERS resolution for analytics (test_results / testowners uploads)."""
+"""TESTOWNERS resolution for analytics (test_results / testowners uploads).
 
-import os
+``codeowners`` returns ``TEAM:@ydb-platform/<Slug>`` with whatever casing is in
+``.github/TESTOWNERS``. We normalize team slugs to lowercase **here** (on read) so YDB
+``owners`` / downstream marts always contain lowercase slugs without touching the file.
+
+For routing (digest queue, Telegram, GitHub project owner) use :func:`canonical_team_slug`
+from ``github_issue_utils`` — it maps None / empty / unknown to the sentinel ``"unknown"``.
+"""
 
-from codeowners import CodeOwners
+import os
 
 _MODULE_DIR = os.path.dirname(os.path.abspath(__file__))
 _REPO_ROOT = os.path.normpath(os.path.join(_MODULE_DIR, '..', '..', '..'))
 TESTOWNERS_FILE = os.path.join(_REPO_ROOT, '.github', 'TESTOWNERS')
 
+_GITHUB_TEAM_PREFIX = "TEAM:@ydb-platform/"
+
+
+def normalize_github_team_owners_string(owners_str: str) -> str:
+    """Lowercase path after ``TEAM:@ydb-platform/`` in each ``;;``-separated owner token."""
+    if not owners_str or _GITHUB_TEAM_PREFIX not in owners_str:
+        return owners_str
+    parts = owners_str.split(";;")
+    normalized = []
+    for raw in parts:
+        s = raw.strip()
+        if s.startswith(_GITHUB_TEAM_PREFIX):
+            rest = s[len(_GITHUB_TEAM_PREFIX) :]
+            normalized.append(_GITHUB_TEAM_PREFIX + rest.lower())
+        else:
+            normalized.append(s)
+    return ";;".join(normalized)
+
 
 def sort_codeowners_lines(codeowners_lines):
     def path_specificity(line):
@@ -44,6 +68,8 @@ def get_testowners_for_tests(tests_data):
     Entry may be a dict with key ``suite_folder`` (upload pipeline) or any object with
     ``classname`` (e.g. generate-summary.TestResult — same path as suite_folder in JSON).
     """
+    from codeowners import CodeOwners
+
     with open(TESTOWNERS_FILE, 'r') as file:
         data = file.readlines()
         owners_obj = CodeOwners(''.join(sort_codeowners_lines(data)))
@@ -51,5 +77,5 @@ def get_testowners_for_tests(tests_data):
             target_path = _suite_path_for_codeowners(test)
             owners = owners_obj.of(target_path)
             owners_str = ';;'.join([':'.join(x) for x in owners])
-            _set_owners_field(test, owners_str)
+            _set_owners_field(test, normalize_github_team_owners_string(owners_str))
         return tests_data
diff --git a/.github/scripts/analytics/tests_monitor.py b/.github/scripts/analytics/tests_monitor.py
index 960134fc840..cd9ef025099 100755
--- a/.github/scripts/analytics/tests_monitor.py
+++ b/.github/scripts/analytics/tests_monitor.py
@@ -16,6 +16,7 @@ from github_issue_utils import (
     compute_effective_analytics_row,
     min_area_by_owner_team_from_rows,
 )
+from testowners_utils import normalize_github_team_owners_string
 
 
 def create_tables(ydb_wrapper, table_path):
@@ -281,14 +282,13 @@ def _annotate_effective_owner_change_columns(df, last_exist_df):
             immediate = curr
 
 
-
 def compute_owner(owner):
     if not owner or owner == '':
-        return 'Unknown'
+        return 'unknown'
     elif ';;' in owner:
         parts = owner.split(';;', 1)
         if 'TEAM' in parts[0]:
-            return parts[0]
+            return normalize_github_team_owners_string(parts[0])
         else:
             return parts[1]
     else: