Mark InsetDrawableTest#testGetOpacity as a BrokenTest.

Bug 2397630

Change-Id: Ibf707a528a565a776c920cd994ba530b18d23ca1
diff --git a/tests/tests/graphics/src/android/graphics/drawable/cts/InsetDrawableTest.java b/tests/tests/graphics/src/android/graphics/drawable/cts/InsetDrawableTest.java
index c70fd8a..6ca1806 100644
--- a/tests/tests/graphics/src/android/graphics/drawable/cts/InsetDrawableTest.java
+++ b/tests/tests/graphics/src/android/graphics/drawable/cts/InsetDrawableTest.java
@@ -18,6 +18,7 @@
 
 import com.android.cts.stub.R;
 
+import dalvik.annotation.BrokenTest;
 import dalvik.annotation.TestLevel;
 import dalvik.annotation.TestTargetClass;
 import dalvik.annotation.TestTargetNew;
@@ -304,6 +305,7 @@
         method = "getOpacity",
         args = {}
     )
+    @BrokenTest(value="bug 2397630 - needs investigation")
     public void testGetOpacity() {
         Drawable d = mContext.getResources().getDrawable(R.drawable.pass);
         InsetDrawable insetDrawable = new InsetDrawable(d, 0);