[android] Instumentation tests determine whether to install test apk based on Md5Sum.

build/android/pylib/instrumentation/test_package.py

Index: build/android/pylib/instrumentation/test_package.py
diff --git a/build/android/pylib/instrumentation/test_package.py b/build/android/pylib/instrumentation/test_package.py
index 34f9fe867ac468d408b5a760de9091d707339c2c..fa59c44f409accd0f67e881abacf1addeb298aa6 100644
--- a/build/android/pylib/instrumentation/test_package.py
+++ b/build/android/pylib/instrumentation/test_package.py
@@ -11,6 +11,10 @@ from pylib.utils import apk_helper
 import test_jar
 
 
+def _rreplace(s, old, new, occurrence=1):
+  li = s.rsplit(old, occurrence)
+  return new.join(li)
+
 class TestPackage(test_jar.TestJar):
   def __init__(self, apk_path, jar_path):
     test_jar.TestJar.__init__(self, jar_path)
@@ -36,3 +40,7 @@ class TestPackage(test_jar.TestJar):
   # Override.
   def Install(self, adb):
     adb.ManagedInstall(self.GetApkPath(), package_name=self.GetPackageName())
+    # Install apk to be tested.

[frankf, 2013/07/20 02:18:35]

a debugging session?

[craigdh, 2013/07/22 19:03:14]

This installs the actual apk to be tested by removing Test from the apk name and
.tests from the package name. It uses the _rreplace() because the standard
library doesn't include a function to replace one occurrence from the end of the
string (just the beginning).

+    apk_path = _rreplace(self.GetApkPath(), 'Test.apk', '.apk')
+    package_name = _rreplace(self.GetPackageName(), '.tests', '')
+    adb.ManagedInstall(apk_path, package_name=package_name)