[Predator] Add Clusterfuzz stacktrace parser.

appengine/findit/crash/test/chromecrash_parser_test.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import textwrap
 
 from common.dependency import Dependency
 from crash.chromecrash_parser import ChromeCrashParser
 from crash.stacktrace import StackFrame
 from crash.stacktrace import CallStack
 from crash.stacktrace import Stacktrace
 from crash.test.stacktrace_test_suite import StacktraceTestSuite
 from crash.type_enums import CallStackFormatType
 from crash.type_enums import LanguageType
 
 
 class ChromeCrashParserTest(StacktraceTestSuite):
 
-  def testChromeCrashParserIsStartOfNewCallSTack(self):
-    parser = ChromeCrashParser()
-    self.assertEqual(parser._IsStartOfNewCallStack('dummy line'),
-                     (False, None, None, None))
-    self.assertEqual(parser._IsStartOfNewCallStack('CRASHED [EXC @ 0x508]'),
-                     (True, 0, CallStackFormatType.DEFAULT,
-                      LanguageType.CPP))
-
   def testReturnEmptyStacktraceForEmptyString(self):
     parser = ChromeCrashParser()
     deps = {'src/': Dependency('src/', 'https://repo', '1')}
 
     self.assertIsNone(parser.Parse('', deps))
 
   def testChromeCrashParserParseLineMalformatedCallstack(self):
     parser = ChromeCrashParser()
     deps = {'src/': Dependency('src/', 'https://repo', '1')}
     stacktrace_string = textwrap.dedent(
@@ skipping 77 matching lines @@
         StackFrame(1, 'src/', 'a::b::d(a* c)', 'f1.cc', 'src/f1.cc', [227])])
     expected_callstack1 = CallStack(0, frame_list=[
         StackFrame(
             0, 'src/', 'e::f::g(p* &d)', 'f.cc', 'src/f.cc', [20, 21, 22]),
         StackFrame(
             1, 'src/', 'h::i::j(p* &d)', 'ff.cc', 'src/ff.cc', [9, 10])])
 
     expected_stacktrace = Stacktrace([expected_callstack0, expected_callstack1],
                                      expected_callstack0)
     self._VerifyTwoStacktracesEqual(stacktrace, expected_stacktrace)