1 files changed, 23 insertions, 0 deletions
diff --git a/gfx/skbitmap_operations_unittest.cc b/gfx/skbitmap_operations_unittest.cc
index 83b732a0..bcad287 100644
--- a/gfx/skbitmap_operations_unittest.cc
+++ b/gfx/skbitmap_operations_unittest.cc
@@ -492,3 +492,26 @@ TEST(SkBitmapOperationsTest, UnPreMultiply) {
   EXPECT_EQ(0xFF00CC88, *result.getAddr32(0, 1));
   EXPECT_EQ(0x00000000u, *result.getAddr32(1, 1));  // "Division by zero".
 }
+
+TEST(SkBitmapOperationsTest, CreateTransposedBtmap) {
+  SkBitmap input;
+  input.setConfig(SkBitmap::kARGB_8888_Config, 2, 3);
+  input.allocPixels();
+
+  for (int x = 0; x < input.width(); ++x) {
+    for (int y = 0; y < input.height(); ++y) {
+      *input.getAddr32(x, y) = x * input.width() + y;
+    }
+  }
+
+  SkBitmap result = SkBitmapOperations::CreateTransposedBtmap(input);
+  EXPECT_EQ(3, result.width());
+  EXPECT_EQ(2, result.height());
+
+  SkAutoLockPixels lock(result);
+  for (int x = 0; x < input.width(); ++x) {
+    for (int y = 0; y < input.height(); ++y) {
+      EXPECT_EQ(*input.getAddr32(x, y), *result.getAddr32(y, x));
+    }
+  }
+}