code: def test_check_suppressed_diff_without_suppressions(self):
      locs = check_contents.check_diffs(
          self.bad_cc_hunks, prohibited_regex="Make_Unique"
      )
  
      expected_locs = [
          check_contents.RegexLocation(
              path="src/dir/bad.cc",
              line_number=3,
              line_contents="using Make_Unique = std::make_unique; // OK",
              matched_text="Make_Unique",
          ),
          check_contents.RegexLocation(
              path="src/dir/bad.cc",
              line_number=6,
              line_contents="  return Make_Unique<int>(a + b); // OK. Fixed now!",
              matched_text="Make_Unique",
          ),
      ]
  
      self.assertEqual(locs, expected_locs)
  
file_path: tensorflow-upstream/third_party/xla/build_tools/lint/check_contents_test.py
imports: from absl.testing import absltest
  from xla.build_tools.lint import check_contents
  from xla.build_tools.lint import diff_parser
label_desc: Use image node_id 3 for calling the CheckDiffsTest obj's underlying member method code with example usage: obj.test_check_suppressed_diff_without_suppressions() without return types