Dexdiffer scripts

tools/android/dexdiffer/dexdiffer_unittest.py

Index: tools/android/dexdiffer/dexdiffer_unittest.py
diff --git a/tools/android/dexdiffer/dexdiffer_unittest.py b/tools/android/dexdiffer/dexdiffer_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..4fd635dcebef9b104c14c005de34f47603bec43b
--- /dev/null
+++ b/tools/android/dexdiffer/dexdiffer_unittest.py
@@ -0,0 +1,186 @@
+# 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.
+"""Tests for dexdiffer."""
+
+import dexdiffer
+import json
+import unittest
+
+
+class DexdifferTest(unittest.TestCase):
+
+  def testReadDict(self):
+    mapping_file = [
+        'package.ClassName -> package.qq:\n',
+        'android.support.v8.MenuPopupHelper -> android.support.v8.v:',
+        '    android.view.LayoutInflater mInflater -> d\n',
+        '    117:118:void setForceShowIcon(boolean) -> b',
+        '    1:1:package.ClassName <init>(int,int) -> <init>',
+    ]
+    expected = {
+        'package.qq': ['package.ClassName', {}],
+        'android.support.v8.v':
+        ['android.support.v8.MenuPopupHelper',
+         {'android.view.LayoutInflater d':
+              'android.view.LayoutInflater mInflater',
+          'void b(boolean)': 'void setForceShowIcon(boolean)',
+          'package.ClassName <init>(int,int)':
+              'package.ClassName <init>(int,int)'}],
+    }
+
+    actual = dexdiffer._ReadMappingDict(mapping_file)
+    self.assertDeepEqual(actual, expected)
+
+  def testGetLineTokens1(self):
+    line = '        public  void <init> (android.content.Context,float); // Cxr'
+    expected = ['void', '<init>', 'android.content.Context', 'float']
+    actual = dexdiffer._GetLineTokens(line)
+    self.assertDeepEqual(actual, expected)
+
+  def testGetLineTokens2(self):
+    line = '/** asdfasdf /**/ private final static   /*asdf*/int varname$1;'
+    expected = ['int', 'varname$1']
+    actual = dexdiffer._GetLineTokens(line)
+    self.assertDeepEqual(actual, expected)
+
+  def testGetLineTokens3(self):
+    line = 'int[] varname_1;'
+    expected = ['int[]', 'varname_1']
+    actual = dexdiffer._GetLineTokens(line)
+    self.assertDeepEqual(actual, expected)
+
+  def testGetLineTokensEmpty(self):
+    line = '/***/   /*asdf*/ //comment;'
+    expected = []
+    actual = dexdiffer._GetLineTokens(line)
+    self.assertDeepEqual(actual, expected)
+
+  def testGetMemberIdentifier(self):
+    line_tokens = ['void', 'b', 'boolean', 'rnmd[]']
+    expected = 'void foo(boolean,renamed.type[])'
+    renamed_class_name = 'renamed.class'
+    mapping_dict = { renamed_class_name : [ 'actual.class.name', {
+        'void b': 'void variable_name',
+        'boolean a': 'boolean variable_name2',
+        'void b(boolean,renamed.type)':
+            'void wrong_function(boolean,renamed.type)',
+        'void b(boolean,renamed.type[])': expected,
+    }], 'rnmd': ['renamed.type', {}]}
+    actual = dexdiffer._GetMemberIdentifier(line_tokens, mapping_dict,
+                                             renamed_class_name, True)
+    self.assertEqual(expected, actual)
+
+  def testIsLineFunctionDefinition(self):
+    line = 'java.lang.String  CONSOLE_ELISION= "[(0)]"'
+    self.assertFalse(dexdiffer._IsLineFunctionDefinition(line))
+
+  def testStripQuotes(self):
+    string = 'abc\'123\'"456"def\'"7"\''
+    self.assertEqual('abcdef', dexdiffer._StripQuotes(string))
+
+  def testBuildMappedDexDict(self):
+    dextra_output = [
+'/* 3396 */ public class   org.chromium.chrome.browser.widget.a',
+'           extends android.view.View    {',
+'         /** 2 Instance Fields  **/',
+'          private  org.chromium.chrome.browser.widget.b$1      x;',
+'          private  int  mPosition;',
+'         /** 1 Direct Methods  **/',
+'         public  void <init> (android.content.Context, android.util.Attribute'
+              'Set); // Constructor',
+'         /** 2 Virtual Methods  **/',
+'         public  void init (int, int);',
+'         protected  void onDraw (android.graphics.Canvas);',
+'        }  // end class org.chromium.chrome.browser.widget.a',
+'/* 3397 */ class   org.chromium.chrome.browser.widget.b$1',
+'           implements android.text.TextWatcher  {',
+'         /** 1 Instance Fields  **/',
+'          final  org.chromium.chrome.browser.widget.FloatLabelLayout'
+              '    this$0;',
+'         /** 1 Direct Methods  **/',
+'          bool <init> (); // Constructor',
+'         /** 1 Virtual Methods  **/',
+'         public  void x (org.chromium.chrome.browser.widget.a, int, int,'
+              ' int);',
+'        }  // end class org.chromium.chrome.browser.widget.b$1']
+    mapping_dict = {
+        'org.chromium.chrome.browser.widget.a': ['class_name_a', {
+            'class_name_b$1 x': 'class_name_b$1 full_member_variable',
+            'int mPosition': 'int mPosition',
+            'void <init>(android.content.Context,android.util.AttributeSet)':
+              'void <init>(android.content.Context,android.util.AttributeSet)',
+            'void init(int,int)': 'void init(int,int)',
+            'void onDraw(android.graphics.Canvas)':
+                'void onDraw(android.graphics.Canvas)',
+        }],
+        'org.chromium.chrome.browser.widget.b$1': ['class_name_b$1', {
+            'org.chromium.chrome.browser.widget.FloatLabelLayout this$0':
+              'org.chromium.chrome.browser.widget.FloatLabelLayout this$0',
+            'boolean <init>()': 'boolean <init>()',
+            'void x(class_name_a,int,int,int)':
+              'void full_function_name(class_name_a,int,int,int)'
+          }],
+    }
+    actual = dexdiffer._BuildMappedDexDict(dextra_output, mapping_dict)
+    expected = { 'class_name_a': [
+        'class_name_b$1 full_member_variable',
+        'int mPosition',
+        'void <init>(android.content.Context,android.util.AttributeSet)',
+        'void init(int,int)',
+        'void onDraw(android.graphics.Canvas)'
+    ], 'class_name_b$1': [
+        'org.chromium.chrome.browser.widget.FloatLabelLayout this$0',
+        'boolean <init>()',
+        'void full_function_name(class_name_a,int,int,int)'
+    ]}
+    self.assertDeepEqual(actual, expected)
+
+  def testParseMappingLine(self):
+    orig_name = "abc.q12$1"
+    new_name = "a$1"
+    line = orig_name + " -> " + new_name
+    actual_orig_name, actual_new_name = dexdiffer._ParseMappingLine(line)
+    self.assertEqual(orig_name, actual_orig_name)
+    self.assertEqual(new_name, actual_new_name)
+
+  def testDiffDexDicts(self):
+    base_dict = { 'class_name_a': [
+        'class_name_b$1 full_member_variable',
+        'int mPosition',
+        'void <init>(android.content.Context,android.util.AttributeSet)',
+        'void init(int,int)',
+        'void onDraw(android.graphics.Canvas)'
+    ], 'class_name_b$1': [
+        'org.chromium.chrome.browser.widget.FloatLabelLayout this$0',
+        'void <init>()',
+        'void full_function_name(class_name_a,int,int)'
+    ], 'class_name_deleted': []}
+    new_dict = { 'class_name_a': [
+        'class_name_b$1 full_member_variable',
+        'int mPosition',
+        'void <init>(android.content.Context,android.util.AttributeSet)',
+        'void init(int,int)',
+        'void onDraw(android.graphics.Canvas)'
+    ], 'class_name_b$1': [
+        'org.chromium.chrome.browser.widget.FloatLabelLayout this$0',
+        'void <init>()',
+        'void full_function_name(int,int,int)'
+    ], 'class_name_new': []}
+    actual = dexdiffer._DiffDexDicts(base_dict, new_dict)
+    expected = [('class_name_b$1\n'
+                 '-  void full_function_name(class_name_a,int,int)\n'
+                 '+  void full_function_name(int,int,int)'),
+                '-class class_name_deleted',
+                '+class class_name_new']
+
+    self.assertDeepEqual(actual, expected)
+
+  def assertDeepEqual(self, actual, expected):
+    # Only designed to work for json-able types
+    a = json.dumps(actual, sort_keys=True)
+    e = json.dumps(expected, sort_keys=True)
+    self.assertEqual(a, e)
+
+if __name__ == '__main__':
+  unittest.main()