diff --git a/tests/BitmapCopyTest.cpp b/tests/BitmapCopyTest.cpp
index b8d16bf..c3c6f12 100644
--- a/tests/BitmapCopyTest.cpp
+++ b/tests/BitmapCopyTest.cpp
@@ -308,12 +308,16 @@
                 }
                 // test extractSubset
                 {
+                    SkBitmap bitmap(src);
                     SkBitmap subset;
                     SkIRect r;
                     r.set(1, 1, 2, 2);
-                    if (src.extractSubset(&subset, r)) {
+                    bitmap.setIsOpaque(true);
+                    if (bitmap.extractSubset(&subset, r)) {
                         REPORTER_ASSERT(reporter, subset.width() == 1);
                         REPORTER_ASSERT(reporter, subset.height() == 1);
+                        REPORTER_ASSERT(reporter,
+                                        subset.isOpaque() == bitmap.isOpaque());
 
                         SkBitmap copy;
                         REPORTER_ASSERT(reporter,
@@ -329,6 +333,11 @@
                         REPORTER_ASSERT(reporter,
                                     (copy.getColorTable() != NULL) == hasCT);
                     }
+                    bitmap.setIsOpaque(false);
+                    if (bitmap.extractSubset(&subset, r)) {
+                        REPORTER_ASSERT(reporter,
+                                        subset.isOpaque() == bitmap.isOpaque());
+                    }
                 }
             } else {
                 // dst should be unchanged from its initial state