diff options
Diffstat (limited to 'lib/jxl/bits_test.cc')
| -rw-r--r-- | lib/jxl/bits_test.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/jxl/bits_test.cc b/lib/jxl/bits_test.cc index bf5fa62..699090c 100644 --- a/lib/jxl/bits_test.cc +++ b/lib/jxl/bits_test.cc @@ -41,6 +41,10 @@ TEST(BitsTest, TestFloorLog2) { EXPECT_EQ(expected[i - 1], FloorLog2Nonzero(uint64_t(i))) << " " << i; } + EXPECT_EQ(11u, FloorLog2Nonzero(0x00000fffu)); // 4095 + EXPECT_EQ(12u, FloorLog2Nonzero(0x00001000u)); // 4096 + EXPECT_EQ(12u, FloorLog2Nonzero(0x00001001u)); // 4097 + EXPECT_EQ(31u, FloorLog2Nonzero(0x80000000u)); EXPECT_EQ(31u, FloorLog2Nonzero(0x80000001u)); EXPECT_EQ(31u, FloorLog2Nonzero(0xFFFFFFFFu)); @@ -62,6 +66,10 @@ TEST(BitsTest, TestCeilLog2) { EXPECT_EQ(expected[i - 1], CeilLog2Nonzero(uint64_t(i))) << " " << i; } + EXPECT_EQ(12u, CeilLog2Nonzero(0x00000fffu)); // 4095 + EXPECT_EQ(12u, CeilLog2Nonzero(0x00001000u)); // 4096 + EXPECT_EQ(13u, CeilLog2Nonzero(0x00001001u)); // 4097 + EXPECT_EQ(31u, CeilLog2Nonzero(0x80000000u)); EXPECT_EQ(32u, CeilLog2Nonzero(0x80000001u)); EXPECT_EQ(32u, CeilLog2Nonzero(0xFFFFFFFFu)); |