Expose <meta-data> in apk_helper.py

devil/devil/android/apk_helper_test.py

 #! /usr/bin/env python
 # Copyright 2017 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 unittest
 
 from devil import base_error
 from devil import devil_env
 from devil.android import apk_helper
@@ skipping 32 matching lines @@
       E: activity-alias (line=173)
         A: android:name(0x01010003)="org.chromium.ViewActivity" (Raw: "org.chromium.ViewActivity")
         A: android:targetActivity(0x01010202)="org.chromium.ActivityName" (Raw: "org.chromium.ActivityName")
         E: intent-filter (line=191)
           E: action (line=192)
             A: android:name(0x01010003)="android.intent.action.VIEW" (Raw: "android.intent.action.VIEW")
           E: data (line=198)
             A: android:scheme(0x01010027)="http" (Raw: "http")
           E: data (line=199)
             A: android:scheme(0x01010027)="https" (Raw: "https")
+      E: meta-data (line=43)
+        A: android:name(0x01010003)="name1" (Raw: "name1")
+        A: android:value(0x01010024)="value1" (Raw: "value1")
+      E: meta-data (line=43)
+        A: android:name(0x01010003)="name2" (Raw: "name2")
+        A: android:value(0x01010024)="value2" (Raw: "value2")
     E: instrumentation (line=8)
       A: android:label(0x01010001)="abc" (Raw: "abc")
       A: android:name(0x01010003)="org.chromium.RandomJUnit4TestRunner" (Raw: "org.chromium.RandomJUnit4TestRunner")
       A: android:targetPackage(0x01010021)="org.chromium.random_package" (Raw:"org.chromium.random_pacakge")
       A: junit4=(type 0x12)0xffffffff (Raw: "true")
     E: instrumentation (line=9)
       A: android:label(0x01010001)="abc" (Raw: "abc")
       A: android:name(0x01010003)="org.chromium.RandomTestRunner" (Raw: "org.chromium.RandomTestRunner")
       A: android:targetPackage(0x01010021)="org.chromium.random_package" (Raw:"org.chromium.random_pacakge")
 """
@@ skipping 124 matching lines @@
       helper = apk_helper.ApkHelper('')
       self.assertEquals('org.chromium.RandomTestRunner',
                         helper.GetInstrumentationName())
 
   def testGetSingleJUnit4InstrumentationName(self):
     with _MockAaptDump(_SINGLE_J4_INSTRUMENTATION_MANIFEST_DUMP):
       helper = apk_helper.ApkHelper('')
       self.assertEquals('org.chromium.RandomJ4TestRunner',
                         helper.GetInstrumentationName())
 
+  def testGetAllMetadata(self):
+    with _MockAaptDump(_MANIFEST_DUMP):
+      helper = apk_helper.ApkHelper('')
+      self.assertEquals([('name1', 'value1'), ('name2', 'value2')],
+                        helper.GetAllMetadata())
+
 
 if __name__ == '__main__':
   unittest.main(verbosity=2)