Android: adds stack symbolization utilities.

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..05934b876dce6b473447118cc303c3174fc097c9
--- /dev/null
+++ b/build/android/symbolize_test.py
@@ -0,0 +1,121 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 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 sys
+import StringIO
+import unittest
+
+import symbolize
+
+def RunSymbolizer(text):
+  output = StringIO.StringIO()
+  s = symbolize.Symbolizer(StringIO.StringIO(text), output)
+  s.ProcessInput()
+  return output.getvalue()
+
+
+class SymbolizerUnittest(unittest.TestCase):
+  def testSingleLineNoMatch(self):
+    # Leading '#' is required.
+    expected = '00 pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Whitespace should be exactly one space.
+    expected = '#00  pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc  00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc 00000254  /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Decimal stack frame numbers are required.
+    expected = '#0a pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Lowercase 'pc' token is required.
+    expected = '#00 PC 00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Hexadecimal addresses are required.
+    expected = '#00 pc ghijklmn /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Addresses must be exactly 8 characters.
+    expected = '#00 pc 254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc 0254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc 00254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc 000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+    expected = '#00 pc 0000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Addresses must not be prefixed with '0x'.
+    expected = '#00 pc 0x00000254 /build/android/tests/symbolize/liba.so\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+    # Library name is required.
+    expected = '#00 pc 00000254\n'
+    self.assertEqual(expected, RunSymbolizer(expected))
+
+  def testSingleLine(self):
+    text = '#00 pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    expected = '#00 pc 00000254 A::Bar(char const*)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testSingleLineWithSurroundingText(self):
+    text = 'LEFT #00 pc 00000254 /build/android/tests/symbolize/liba.so RIGHT\n'
+    expected = 'LEFT #00 pc 00000254 A::Bar(char const*) RIGHT\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesSameLibrary(self):
+    text = '#00 pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    text += '#01 pc 00000234 /build/android/tests/symbolize/liba.so\n'
+    expected = '#00 pc 00000254 A::Bar(char const*)\n'
+    expected += '#01 pc 00000234 A::Foo(int)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesDifferentLibrary(self):
+    text = '#00 pc 00000254 /build/android/tests/symbolize/liba.so\n'
+    text += '#01 pc 00000234 /build/android/tests/symbolize/libb.so\n'
+    expected = '#00 pc 00000254 A::Bar(char const*)\n'
+    expected += '#01 pc 00000234 B::Baz(float)\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+  def testMultipleLinesWithSurroundingTextEverywhere(self):
+    text = 'TOP\n'
+    text += ('LEFT #00 pc 00000254 '
+             '/build/android/tests/symbolize/liba.so RIGHT\n')
+    text += ('LEFT #01 pc 00000234 '
+             '/build/android/tests/symbolize/libb.so RIGHT\n')
+    text += 'BOTTOM\n'
+    expected = 'TOP\n'
+    expected += 'LEFT #00 pc 00000254 A::Bar(char const*) RIGHT\n'
+    expected += 'LEFT #01 pc 00000234 B::Baz(float) RIGHT\n'
+    expected += 'BOTTOM\n'
+    actual = RunSymbolizer(text)
+    self.assertEqual(expected, actual)
+
+
+if __name__ == '__main__':
+  unittest.main()