Add CTS test for RippleDrawable.

This includes the tests for the new methods, setRadius() and
getRadius().

Bug: 21664536
Change-Id: I0012c72502da6c1f2f538173d765e48d39a0580a
diff --git a/tests/tests/graphics/res/drawable/rippledrawable_radius.xml b/tests/tests/graphics/res/drawable/rippledrawable_radius.xml
new file mode 100644
index 0000000..4701ef7
--- /dev/null
+++ b/tests/tests/graphics/res/drawable/rippledrawable_radius.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:radius="10px"/>
diff --git a/tests/tests/graphics/src/android/graphics/drawable/cts/RippleDrawableTest.java b/tests/tests/graphics/src/android/graphics/drawable/cts/RippleDrawableTest.java
new file mode 100644
index 0000000..b04433c
--- /dev/null
+++ b/tests/tests/graphics/src/android/graphics/drawable/cts/RippleDrawableTest.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.graphics.drawable.cts;
+
+import com.android.cts.graphics.R;
+
+import android.content.res.ColorStateList;
+import android.graphics.drawable.RippleDrawable;
+import android.graphics.Color;
+import android.test.AndroidTestCase;
+
+public class RippleDrawableTest extends AndroidTestCase {
+    public void testConstructor() {
+        new RippleDrawable(ColorStateList.valueOf(Color.RED), null, null);
+    }
+
+    public void testAccessRadius() {
+        RippleDrawable drawable =
+            new RippleDrawable(ColorStateList.valueOf(Color.RED), null, null);
+        assertEquals(RippleDrawable.RADIUS_AUTO, drawable.getRadius());
+        drawable.setRadius(10);
+        assertEquals(10, drawable.getRadius());
+    }
+
+    public void testRadiusAttr() {
+        RippleDrawable drawable =
+                (RippleDrawable) getContext().getDrawable(R.drawable.rippledrawable_radius);
+        assertEquals(10, drawable.getRadius());
+    }
+}