AI 143872: am: CL 143870 am: CL 143869 Change InstrumentationTestRunner so all tests in the application are run when no other arguments are supplied, instead of running only tests in the app's package.
  Original author: brettchabot
  Merged from: //branches/cupcake/...
  Original author: android-build
  Merged from: //branches/donutburger/...

Automated import of CL 143872
diff --git a/test-runner/android/test/InstrumentationTestRunner.java b/test-runner/android/test/InstrumentationTestRunner.java
index f038612..044f555 100644
--- a/test-runner/android/test/InstrumentationTestRunner.java
+++ b/test-runner/android/test/InstrumentationTestRunner.java
@@ -300,16 +300,17 @@
         }
 
         if (testClassesArg == null) {
-            TestSuite testSuite = null;
             if (mPackageOfTests != null) {
                 testSuiteBuilder.includePackages(mPackageOfTests);
             } else {
-                testSuite = getTestSuite();
-                testSuiteBuilder.addTestSuite(testSuite);
-            }
-
-            if (testSuite == null) {
-                testSuiteBuilder.includePackages(getTargetContext().getPackageName());
+                TestSuite testSuite = getTestSuite();
+                if (testSuite != null) {
+                    testSuiteBuilder.addTestSuite(testSuite);
+                } else {
+                    // no package or class bundle arguments were supplied, and no test suite 
+                    // provided so add all tests in application
+                    testSuiteBuilder.includePackages("");
+                }
             }
         } else {
             parseTestClasses(testClassesArg, testSuiteBuilder);