linux-kernel - [PATCH 2/3] kunit: tool: fix minor typing issue with None status

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Date:   Thu,  3 Dec 2020 11:41:26 -0800
From:   Daniel Latypov <dlatypov@...gle.com>
To:     brendanhiggins@...gle.com
Cc:     davidgow@...gle.com, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, skhan@...uxfoundation.org,
        Daniel Latypov <dlatypov@...gle.com>
Subject: [PATCH 2/3] kunit: tool: fix minor typing issue with None status

The code to handle aggregating statuses didn't check that the status
actually got set.
Default the value to SUCCESS.

This sorta follows the precedent in commit 3fc48259d525 ("kunit: Don't
fail test suites if one of them is empty").

Also slightly simplify the code and add type annotations.

Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
---
 tools/testing/kunit/kunit_parser.py | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
index 24954bbc9baf..97e070506c31 100644
--- a/tools/testing/kunit/kunit_parser.py
+++ b/tools/testing/kunit/kunit_parser.py
@@ -12,13 +12,13 @@ from collections import namedtuple
 from datetime import datetime
 from enum import Enum, auto
 from functools import reduce
-from typing import Iterator, List, Optional, Tuple
+from typing import Iterable, Iterator, List, Optional, Tuple
 
 TestResult = namedtuple('TestResult', ['status','suites','log'])
 
 class TestSuite(object):
 	def __init__(self) -> None:
-		self.status = None  # type: Optional[TestStatus]
+		self.status = TestStatus.SUCCESS
 		self.name = ''
 		self.cases = []  # type: List[TestCase]
 
@@ -30,7 +30,7 @@ class TestSuite(object):
 
 class TestCase(object):
 	def __init__(self) -> None:
-		self.status = None  # type: Optional[TestStatus]
+		self.status = TestStatus.SUCCESS
 		self.name = ''
 		self.log = []  # type: List[str]
 
@@ -223,12 +223,11 @@ def parse_ok_not_ok_test_suite(lines: List[str],
 	else:
 		return False
 
-def bubble_up_errors(to_status, status_container_list) -> TestStatus:
-	status_list = map(to_status, status_container_list)
-	return reduce(max_status, status_list, TestStatus.SUCCESS)
+def bubble_up_errors(statuses: Iterable[TestStatus]) -> TestStatus:
+	return reduce(max_status, statuses, TestStatus.SUCCESS)
 
 def bubble_up_test_case_errors(test_suite: TestSuite) -> TestStatus:
-	max_test_case_status = bubble_up_errors(lambda x: x.status, test_suite.cases)
+	max_test_case_status = bubble_up_errors(x.status for x in test_suite.cases)
 	return max_status(max_test_case_status, test_suite.status)
 
 def parse_test_suite(lines: List[str], expected_suite_index: int) -> Optional[TestSuite]:
@@ -281,8 +280,8 @@ def parse_test_plan(lines: List[str]) -> Optional[int]:
 	else:
 		return None
 
-def bubble_up_suite_errors(test_suite_list: List[TestSuite]) -> TestStatus:
-	return bubble_up_errors(lambda x: x.status, test_suite_list)
+def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus:
+	return bubble_up_errors(x.status for x in test_suites)
 
 def parse_test_result(lines: List[str]) -> TestResult:
 	consume_non_diagnositic(lines)
-- 
2.29.2.576.ga3fc446d84-goog