Improve android stack parser

mojo/devtools/common/android_stack_parser/stack_utils_unittest.py

Index: mojo/devtools/common/android_stack_parser/stack_utils_unittest.py
diff --git a/mojo/devtools/common/android_stack_parser/stack_utils_unittest.py b/mojo/devtools/common/android_stack_parser/stack_utils_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..6329aa6b8721e2c95b6a68431a276584bdcb0961
--- /dev/null
+++ b/mojo/devtools/common/android_stack_parser/stack_utils_unittest.py
@@ -0,0 +1,70 @@
+# Copyright 2015 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.
+
+"""Tests for the native crash dump symbolizer utility functions."""
+
+import unittest
+import stack_utils
+
+
+class StackUtilsTest(unittest.TestCase):
+  """Tests the native crash dump symbolizer utility functions."""
+
+  def test_GetSymbolMapping_no_match(self):
+    """Verifies that, if no mapping is on the input, no mapping is on the
+    output.
+    """
+    lines = ["This is a test case\n", "Caching all mojo apps", ""]
+    self.assertDictEqual({}, stack_utils.GetSymbolMapping(lines))
+
+  def test_GetSymbolMapping_simple_match(self):
+    """Verifies a simple symbol mapping."""
+    lines = ["This is a test case\n", "Caching all mojo apps",
+        "I/mojo(2): [INFO:somefile.cc(85)] Caching mojo app "
+        "https://apps.mojo/myapp.mojo at /path/to/myapp.mojo/.lM03ws"]
+    golden_dict = {
+        "/path/to/myapp.mojo/.lM03ws": "libmyapp_library.so"
+    }
+    actual_dict = stack_utils.GetSymbolMapping(lines)
+    self.assertDictEqual(golden_dict, actual_dict)
+
+  def test_GetSymbolMapping_multiple_match(self):
+    """Verifies mapping of multiple symbol files."""
+    lines = ["This is a test case\n", "Caching all mojo apps",
+        "I/mojo(2): [INFO:somefile.cc(85)] Caching mojo app "
+        "https://apps.mojo/myapp.mojo at /path/to/myapp.mojo/.lM03ws",
+        "I/mojo(2): [INFO:somefile.cc(85)] Caching mojo app "
+        "https://apps.mojo/otherapp.mojo at /path/to/otherapp.mojo/.kW07s"]
+    golden_dict = {
+        "/path/to/myapp.mojo/.lM03ws": "libmyapp_library.so",
+        "/path/to/otherapp.mojo/.kW07s": "libotherapp_library.so"
+    }
+    actual_dict = stack_utils.GetSymbolMapping(lines)
+    self.assertDictEqual(golden_dict, actual_dict)
+
+  def test_GetSymbolMapping_parameter_match(self):
+    """Verifies parameters are stripped from mappings."""
+    lines = ["This is a test case\n", "Caching all mojo apps",
+        "I/mojo(2): [INFO:somefile.cc(85)] Caching mojo app "
+        "https://apps.mojo/myapp.mojo?q=hello at /path/to/myapp.mojo/.lM03ws"]
+    golden_dict = {
+        "/path/to/myapp.mojo/.lM03ws": "libmyapp_library.so"
+    }
+    actual_dict = stack_utils.GetSymbolMapping(lines)
+    self.assertDictEqual(golden_dict, actual_dict)
+
+  def test_GetSymbolMapping_normalize(self):
+    """Verifies paths are normalized in mappings."""
+    lines = ["This is a test case\n", "Caching all mojo apps",
+        "I/mojo(2): [INFO:somefile.cc(85)] Caching mojo app "
+        "https://apps.mojo/myapp.mojo at /path/to/.//myapp.mojo/.lM03ws"]
+    golden_dict = {
+        "/path/to/myapp.mojo/.lM03ws": "libmyapp_library.so"
+    }
+    actual_dict = stack_utils.GetSymbolMapping(lines)
+    self.assertDictEqual(golden_dict, actual_dict)
+
+
+if __name__ == "__main__":
+  unittest.main()