Revert of Revert of [Android] JUnit runner + gyp changes.

testing/android/junit/javatests/src/org/chromium/testing/local/PackageFilterTest.java

Index: testing/android/junit/javatests/src/org/chromium/testing/local/PackageFilterTest.java
diff --git a/testing/android/junit/javatests/src/org/chromium/testing/local/PackageFilterTest.java b/testing/android/junit/javatests/src/org/chromium/testing/local/PackageFilterTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..4427676bdb2ffdd92cf37a537643e5e15ae4aadd
--- /dev/null
+++ b/testing/android/junit/javatests/src/org/chromium/testing/local/PackageFilterTest.java
@@ -0,0 +1,47 @@
+// Copyright 2014 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.
+
+package org.chromium.testing.local;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.Description;
+import org.junit.runner.RunWith;
+import org.junit.runner.manipulation.Filter;
+import org.junit.runners.BlockJUnit4ClassRunner;
+
+/**
+ *  Unit tests for PackageFilter.
+ */
+@RunWith(BlockJUnit4ClassRunner.class)
+public class PackageFilterTest {
+
+    @Test
+    public void testDescription() {
+        Filter filterUnderTest = new PackageFilter("test.package");
+        Assert.assertEquals("package-filter: test.package", filterUnderTest.describe());
+    }
+
+    @Test
+    public void testNoFilter() {
+        Filter filterUnderTest = new PackageFilter("");
+        Assert.assertFalse(filterUnderTest.shouldRun(
+                Description.createTestDescription(PackageFilterTest.class, "testNoFilter")));
+    }
+
+    @Test
+    public void testFilterHit() {
+        Filter filterUnderTest = new PackageFilter("org.chromium.testing.local");
+        Assert.assertTrue(filterUnderTest.shouldRun(
+                Description.createTestDescription(PackageFilterTest.class, "testWithFilter")));
+    }
+
+    @Test
+    public void testFilterMiss() {
+        Filter filterUnderTest = new PackageFilter("org.chromium.native_test");
+        Assert.assertFalse(filterUnderTest.shouldRun(
+                Description.createTestDescription(PackageFilterTest.class, "testWithFilter")));
+    }
+
+}