Add a snapshot of flutter/engine/src/build to our sdk

build/android/symbolize_test.py

Index: build/android/symbolize_test.py
diff --git a/build/android/symbolize_test.py b/build/android/symbolize_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..826d85228e6835aafe9c557193faafe9d36cf96d
--- /dev/null
+++ b/build/android/symbolize_test.py
@@ -0,0 +1,130 @@
+#!/usr/bin/env python
+#
+# Copyright 2013 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.
+
+"""Unittest for symbolize.py.
+
+This test uses test libraries generated by the Android g++ toolchain.
+
+Should things break you can recreate the libraries and get the updated
+addresses and demangled names by running the following:
+  cd test/symbolize/
+  make
+  nm -gC *.so
+"""
+
+import StringIO
+import unittest
+
+import symbolize
+
+LIB_A_PATH = '/build/android/tests/symbolize/liba.so'
+LIB_B_PATH = '/build/android/tests/symbolize/libb.so'
+
+def RunSymbolizer(text):
+  output = StringIO.StringIO()
+  s = symbolize.Symbolizer(output)
+  s.write(text)
+  return output.getvalue()
+
+
+class SymbolizerUnittest(unittest.TestCase):
+  def testSingleLineNoMatch(self):
+    # Leading '#' is required.
+    expected = '00 0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Whitespace should be exactly one space.
+    expected = '#00  0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000  ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Decimal stack frame numbers are required.
+    expected = '#0a 0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Hexadecimal addresses are required.
+    expected = '#00 0xghijklmn ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 ' + LIB_A_PATH + '+0xghijklmn\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Addresses must be exactly 8 characters.
+    expected = '#00 0x0000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x000000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    expected = '#00 0x0000000 ' + LIB_A_PATH + '+0x0000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x000000000 ' + LIB_A_PATH + '+0x000000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Addresses must be prefixed with '0x'.
+    expected = '#00 00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 ' + LIB_A_PATH + '+00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Library name is required.
+    expected = '#00 0x00000000\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 +0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Library name must be followed by offset with no spaces around '+'.
+    expected = '#00 0x00000000 ' + LIB_A_PATH + ' +0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 ' + LIB_A_PATH + '+ 0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 ' + LIB_A_PATH + ' 0x00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 0x00000000 ' + LIB_A_PATH + '+\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+  def testSingleLine(self):
+    text = '#00 0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    expected = '#00 0x00000000 A::Bar(char const*)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testSingleLineWithSurroundingText(self):
+    text = 'LEFT #00 0x00000000 ' + LIB_A_PATH + '+0x00000254 RIGHT\n'
+    expected = 'LEFT #00 0x00000000 A::Bar(char const*) RIGHT\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesSameLibrary(self):
+    text = '#00 0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    text += '#01 0x00000000 ' + LIB_A_PATH + '+0x00000234\n'
+    expected = '#00 0x00000000 A::Bar(char const*)\n'
+    expected += '#01 0x00000000 A::Foo(int)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesDifferentLibrary(self):
+    text = '#00 0x00000000 ' + LIB_A_PATH + '+0x00000254\n'
+    text += '#01 0x00000000 ' + LIB_B_PATH + '+0x00000234\n'
+    expected = '#00 0x00000000 A::Bar(char const*)\n'
+    expected += '#01 0x00000000 B::Baz(float)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesWithSurroundingTextEverywhere(self):
+    text = 'TOP\n'
+    text += 'LEFT #00 0x00000000 ' + LIB_A_PATH + '+0x00000254 RIGHT\n'
+    text += 'LEFT #01 0x00000000 ' + LIB_B_PATH + '+0x00000234 RIGHT\n'
+    text += 'BOTTOM\n'
+    expected = 'TOP\n'
+    expected += 'LEFT #00 0x00000000 A::Bar(char const*) RIGHT\n'
+    expected += 'LEFT #01 0x00000000 B::Baz(float) RIGHT\n'
+    expected += 'BOTTOM\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+
+if __name__ == '__main__':
+  unittest.main()