kunit: tool: fix count of tests if late test plan

Fix test count with late test plan.

For example,
  TAP version 13
  ok 1 test1
  1..4

Returns a count of 1 passed, 1 crashed (because it expects tests after
the test plan): returning the total count of 2 tests

Change this to be 1 passed, 1 error: total count of 1 test

Link: https://lore.kernel.org/r/20250319223351.1517262-1-rmoar@google.com
Signed-off-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <shuah@kernel.org>

Author: rmr167

tools/testing/kunit/kunit_parser.py

@@ -809,6 +809,10 @@ def parse_test(lines: LineStream, expected_num: int, log: List[str], is_subtest:
 		test.log.extend(parse_diagnostic(lines))
 		if test.name != "" and not peek_test_name_match(lines, test):
 			test.add_error(printer, 'missing subtest result line!')
+		elif not lines:
+			print_log(test.log, printer)
+			test.status = TestStatus.NO_TESTS
+			test.add_error(printer, 'No more test results!')
 		else:
 			parse_test_result(lines, test, expected_num, printer)
 

tools/testing/kunit/kunit_tool_test.py

@@ -371,8 +371,8 @@ def test_parse_late_test_plan(self):
 		"""
 		result = kunit_parser.parse_run_tests(output.splitlines(), stdout)
 		# Missing test results after test plan should alert a suspected test crash.
-		self.assertEqual(kunit_parser.TestStatus.TEST_CRASHED, result.status)
-		self.assertEqual(result.counts, kunit_parser.TestCounts(passed=1, crashed=1, errors=1))
+		self.assertEqual(kunit_parser.TestStatus.SUCCESS, result.status)
+		self.assertEqual(result.counts, kunit_parser.TestCounts(passed=1, errors=2))
 
 def line_stream_from_strs(strs: Iterable[str]) -> kunit_parser.LineStream:
 	return kunit_parser.LineStream(enumerate(strs, start=1))