fix unhandled tuple

Signed-off-by: Javan Lacerda <javanlacerda@google.com>

Author: javanlacerda

src/clusterfuzz/_internal/platforms/android/kernel_utils.py

@@ -144,4 +144,4 @@ def get_kernel_hash_and_build_id():
   if match:
     return match.group(2), match.group(3)
 
-  return None
+  return None, None

src/clusterfuzz/_internal/tests/core/platforms/android/kernel_utils_test.py

@@ -0,0 +1,189 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for kernel_utils."""
+
+import unittest
+from unittest import mock
+
+from clusterfuzz._internal.platforms.android import kernel_utils
+from clusterfuzz._internal.tests.test_libs import helpers
+
+
+class GetCleanKernelPathTest(unittest.TestCase):
+  """Tests for _get_clean_kernel_path."""
+
+  def test_clean_path(self):
+    """Test that path is cleaned correctly."""
+    path = '/buildbot/src/partner-android/BRANCH/private/PROJ/kernel/msm/arch/arm64/kernel/traps.c'
+    self.assertEqual(
+        kernel_utils._get_clean_kernel_path(path),
+        'kernel/msm/arch/arm64/kernel/traps.c')
+
+  def test_no_private(self):
+    """Test path without 'private'."""
+    path = '/path/to/something/else'
+    self.assertEqual(kernel_utils._get_clean_kernel_path(path), path)
+
+
+class GetKernelStackFrameLinkTest(unittest.TestCase):
+  """Tests for get_kernel_stack_frame_link."""
+
+  def test_link_creation(self):
+    """Test link creation."""
+    stack_frame = '  [<c0667e78>] __do_fault+0x44/0x8c /buildbot/src/partner-android/BRANCH/private/PROJ/kernel/msm/mm/memory.c:3095'
+    kernel_prefix = 'kernel/private/msm-google'
+    kernel_hash = 'abcdef123456'
+
+    # The expected output should replace the path:line with the link info.
+    # The original path was /buildbot/src/partner-android/BRANCH/private/PROJ/kernel/msm/mm/memory.c
+    # _get_clean_kernel_path converts it to kernel/msm/mm/memory.c (PROJ removed)
+    # kernel_prefix is stripped to msm-google
+
+    # The function constructs:
+    # prefix = msm-google
+    # hash = abcdef123456
+    # path = kernel/msm/mm/memory.c
+    # line = 3095
+    # display_path = msm-google/kernel/msm/mm/memory.c:3095
+
+    expected_link_part = ('http://go/pakernel/msm-google/+/abcdef123456/'
+                          'kernel/msm/mm/memory.c#3095;'
+                          'msm-google/kernel/msm/mm/memory.c:3095;')
+
+    result = kernel_utils.get_kernel_stack_frame_link(
+        stack_frame, kernel_prefix, kernel_hash)
+    self.assertIn(expected_link_part, result)
+
+  def test_no_match(self):
+    """Test when regex doesn't match."""
+    stack_frame = 'random string'
+    self.assertEqual(
+        kernel_utils.get_kernel_stack_frame_link(stack_frame, 'prefix', 'hash'),
+        stack_frame)
+
+
+class GetPrefixAndFullHashTest(unittest.TestCase):
+  """Tests for _get_prefix_and_full_hash."""
+
+  def test_found(self):
+    """Test when hash is found."""
+    repo_data = "prefix1 u'fullhash1\nprefix2 u'fullhash2"
+    prefix, full_hash = kernel_utils._get_prefix_and_full_hash(
+        repo_data, 'fullhash1')
+    self.assertEqual(prefix, 'prefix1')
+    self.assertEqual(full_hash, 'fullhash1')
+
+  def test_not_found(self):
+    """Test when hash is not found."""
+    repo_data = "prefix1 u'fullhash1\nprefix2 u'fullhash2"
+    prefix, full_hash = kernel_utils._get_prefix_and_full_hash(
+        repo_data, 'nonexistent')
+    self.assertIsNone(prefix)
+    self.assertIsNone(full_hash)
+
+
+class GetRepoPropDataTest(unittest.TestCase):
+  """Tests for _get_repo_prop_data."""
+
+  def setUp(self):
+    helpers.patch(self, [
+        'clusterfuzz._internal.system.environment.get_value',
+        'clusterfuzz._internal.platforms.android.symbols_downloader.get_repo_prop_archive_filename',
+        'clusterfuzz._internal.platforms.android.symbols_downloader.download_kernel_repo_prop_if_needed',
+        'clusterfuzz._internal.base.utils.find_binary_path',
+        'clusterfuzz._internal.base.utils.read_data_from_file',
+        'os.path.exists',
+    ])
+    self.mock.get_value.return_value = '/symbols'
+    self.mock.get_repo_prop_archive_filename.return_value = 'repo.prop'
+
+  def test_success(self):
+    """Test success path."""
+    self.mock.find_binary_path.return_value = '/symbols/repo.prop'
+    self.mock.exists.return_value = True
+    self.mock.read_data_from_file.return_value = b'data'
+
+    result = kernel_utils._get_repo_prop_data('build_id', 'target')
+    self.assertEqual(result, 'data')
+
+  def test_failure(self):
+    """Test failure path."""
+    self.mock.find_binary_path.return_value = None
+
+    result = kernel_utils._get_repo_prop_data('build_id', 'target')
+    self.assertIsNone(result)
+
+
+class GetKernelNameTest(unittest.TestCase):
+  """Tests for get_kernel_name."""
+
+  def setUp(self):
+    helpers.patch(self, [
+        'clusterfuzz._internal.platforms.android.settings.get_product_name',
+        'clusterfuzz._internal.platforms.android.settings.get_build_product',
+    ])
+
+  def test_default(self):
+    self.mock.get_product_name.return_value = 'product'
+    self.mock.get_build_product.return_value = 'product'
+
+    with mock.patch.dict(
+        'clusterfuzz._internal.platforms.android.constants.PRODUCT_TO_KERNEL',
+        {},
+        clear=True):
+      self.assertEqual(kernel_utils.get_kernel_name(), 'product')
+
+  def test_kasan_strip(self):
+    self.mock.get_product_name.return_value = 'product_kasan'
+    self.mock.get_build_product.return_value = 'product'
+
+    with mock.patch.dict(
+        'clusterfuzz._internal.platforms.android.constants.PRODUCT_TO_KERNEL',
+        {},
+        clear=True):
+      # Based on current implementation, _kasan is NOT stripped because the
+      # return value of utils.strip_from_right is ignored.
+      self.assertEqual(kernel_utils.get_kernel_name(), 'product_kasan')
+
+  def test_mapping(self):
+    self.mock.get_product_name.return_value = 'product'
+    self.mock.get_build_product.return_value = 'alias_product'
+
+    with mock.patch.dict(
+        'clusterfuzz._internal.platforms.android.constants.PRODUCT_TO_KERNEL',
+        {'alias_product': 'real_product'},
+        clear=True):
+      self.assertEqual(kernel_utils.get_kernel_name(), 'real_product')
+
+
+class GetKernelHashAndBuildIdTest(unittest.TestCase):
+  """Tests for get_kernel_hash_and_build_id."""
+
+  def setUp(self):
+    helpers.patch(self, [
+        'clusterfuzz._internal.platforms.android.settings.get_kernel_version_string',
+    ])
+
+  def test_match(self):
+    self.mock.get_kernel_version_string.return_value = (
+        'Linux version 3.18.0-g8de8e79-ab1234567 (android-build@google.com)')
+    # Expected: (match.group(2), match.group(3))
+    # match.group(2) is 'ab1234567 ' (with space)
+    # match.group(3) is '1234567'
+    self.assertEqual(kernel_utils.get_kernel_hash_and_build_id(),
+                     ('ab1234567 ', '1234567'))
+
+  def test_no_match(self):
+    self.mock.get_kernel_version_string.return_value = 'invalid'
+    self.assertEqual(kernel_utils.get_kernel_hash_and_build_id(), (None, None))