Index: core/fxge/skia/fx_skia_device_unittest.cpp |
diff --git a/core/fxge/skia/fx_skia_device_unittest.cpp b/core/fxge/skia/fx_skia_device_unittest.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..57a4ec140b513b7dec5e55e0239fd5e839956ccc |
--- /dev/null |
+++ b/core/fxge/skia/fx_skia_device_unittest.cpp |
@@ -0,0 +1,31 @@ |
+// Copyright 2016 PDFium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "core/fxge/skia/fx_skia_device.cpp" |
+#include "testing/fx_string_testhelpers.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace { |
+ |
+uint32_t _GetBits32(const uint8_t* pData, int bitpos, int nbits) { |
+ int result = 0; |
+ for (int i = 0; i < nbits; i++) |
+ if (pData[(bitpos + i) / 8] & (1 << (7 - (bitpos + i) % 8))) { |
+ result |= 1 << (nbits - i - 1); |
+ } |
+ return result; |
+} |
+ |
+} // namespace |
+ |
+TEST(fxge, GetBits32) { |
+ unsigned char data[] = {0xDE, 0x3F, 0xB1, 0x7C, 0x12, 0x9A, 0x04, 0x56}; |
+ for (int nbits = 1; nbits <= 32; ++nbits) { |
+ for (int bitpos = 0; bitpos < (int)sizeof(data) * 8 - nbits; ++bitpos) { |
+ uint32_t ref = _GetBits32(data, bitpos, nbits); |
+ uint32_t test = GetBits32(data, bitpos, nbits); |
+ EXPECT_TRUE(ref == test); |
+ } |
+ } |
+} |