diff --git a/services/surfaceflinger/tests/unittests/RegionSamplingTest.cpp b/services/surfaceflinger/tests/unittests/RegionSamplingTest.cpp
index 160f041..d8de804 100644
--- a/services/surfaceflinger/tests/unittests/RegionSamplingTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RegionSamplingTest.cpp
@@ -69,16 +69,16 @@
         n++;
         return pixel;
     });
+
     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),
-                testing::FloatNear(0.083f, 0.01f));
+                testing::FloatNear(0.16f, 0.01f));
 }
 
 TEST_F(RegionSamplingTest, bimodal_tiebreaker) {
     std::generate(buffer.begin(), buffer.end(),
                   [n = 0]() mutable { return (n++ % 2) ? kBlack : kWhite; });
-    // presently there's no tiebreaking strategy in place, accept either of the means
     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),
-                testing::AnyOf(testing::FloatEq(1.0), testing::FloatEq(0.0f)));
+                testing::FloatEq(0.5f));
 }
 
 TEST_F(RegionSamplingTest, bounds_checking) {