diff options
Diffstat (limited to 'unittests/Support/LEB128Test.cpp')
| -rw-r--r-- | unittests/Support/LEB128Test.cpp | 47 |
1 files changed, 33 insertions, 14 deletions
diff --git a/unittests/Support/LEB128Test.cpp b/unittests/Support/LEB128Test.cpp index 76b63e5a83817..061936df1d19d 100644 --- a/unittests/Support/LEB128Test.cpp +++ b/unittests/Support/LEB128Test.cpp @@ -17,26 +17,45 @@ using namespace llvm; namespace { TEST(LEB128Test, EncodeSLEB128) { -#define EXPECT_SLEB128_EQ(EXPECTED, VALUE) \ +#define EXPECT_SLEB128_EQ(EXPECTED, VALUE, PAD) \ do { \ - /* encodeSLEB128(uint64_t, raw_ostream &) */ \ std::string Expected(EXPECTED, sizeof(EXPECTED) - 1); \ - std::string Actual; \ - raw_string_ostream Stream(Actual); \ - encodeSLEB128(VALUE, Stream); \ + \ + /* encodeSLEB128(uint64_t, raw_ostream &, unsigned) */ \ + std::string Actual1; \ + raw_string_ostream Stream(Actual1); \ + encodeSLEB128(VALUE, Stream, PAD); \ Stream.flush(); \ - EXPECT_EQ(Expected, Actual); \ + EXPECT_EQ(Expected, Actual1); \ + \ + /* encodeSLEB128(uint64_t, uint8_t *, unsigned) */ \ + uint8_t Buffer[32]; \ + unsigned Size = encodeSLEB128(VALUE, Buffer, PAD); \ + std::string Actual2(reinterpret_cast<const char *>(Buffer), Size); \ + EXPECT_EQ(Expected, Actual2); \ } while (0) // Encode SLEB128 - EXPECT_SLEB128_EQ("\x00", 0); - EXPECT_SLEB128_EQ("\x01", 1); - EXPECT_SLEB128_EQ("\x7f", -1); - EXPECT_SLEB128_EQ("\x3f", 63); - EXPECT_SLEB128_EQ("\x41", -63); - EXPECT_SLEB128_EQ("\x40", -64); - EXPECT_SLEB128_EQ("\xbf\x7f", -65); - EXPECT_SLEB128_EQ("\xc0\x00", 64); + EXPECT_SLEB128_EQ("\x00", 0, 0); + EXPECT_SLEB128_EQ("\x01", 1, 0); + EXPECT_SLEB128_EQ("\x7f", -1, 0); + EXPECT_SLEB128_EQ("\x3f", 63, 0); + EXPECT_SLEB128_EQ("\x41", -63, 0); + EXPECT_SLEB128_EQ("\x40", -64, 0); + EXPECT_SLEB128_EQ("\xbf\x7f", -65, 0); + EXPECT_SLEB128_EQ("\xc0\x00", 64, 0); + + // Encode SLEB128 with some extra padding bytes + EXPECT_SLEB128_EQ("\x80\x00", 0, 1); + EXPECT_SLEB128_EQ("\x80\x80\x00", 0, 2); + EXPECT_SLEB128_EQ("\xff\x80\x00", 0x7f, 1); + EXPECT_SLEB128_EQ("\xff\x80\x80\x00", 0x7f, 2); + EXPECT_SLEB128_EQ("\x80\x81\x00", 0x80, 1); + EXPECT_SLEB128_EQ("\x80\x81\x80\x00", 0x80, 2); + EXPECT_SLEB128_EQ("\xc0\x7f", -0x40, 1); + EXPECT_SLEB128_EQ("\xc0\xff\x7f", -0x40, 2); + EXPECT_SLEB128_EQ("\x80\xff\x7f", -0x80, 1); + EXPECT_SLEB128_EQ("\x80\xff\xff\x7f", -0x80, 2); #undef EXPECT_SLEB128_EQ } |