diff options
| author | Bastien Bouclet | 2012-12-14 11:44:37 +0100 |
|---|---|---|
| committer | Bastien Bouclet | 2012-12-16 10:29:58 +0100 |
| commit | 0f432b90030b06682b328d59c639f476cc133a85 (patch) | |
| tree | 0709cf2ae3827636d2786aa7ce4ba9e886dbc403 | |
| parent | edb8b6e236cf44154193acccee3d7840cae1f121 (diff) | |
| download | scummvm-rg350-0f432b90030b06682b328d59c639f476cc133a85.tar.gz scummvm-rg350-0f432b90030b06682b328d59c639f476cc133a85.tar.bz2 scummvm-rg350-0f432b90030b06682b328d59c639f476cc133a85.zip | |
TEST: Add some tests for Common::BitStreamImpl
| -rw-r--r-- | test/common/bitstream.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/test/common/bitstream.h b/test/common/bitstream.h new file mode 100644 index 0000000000..c14fe56116 --- /dev/null +++ b/test/common/bitstream.h @@ -0,0 +1,151 @@ +#include <cxxtest/TestSuite.h> + +#include "common/bitstream.h" + +class BitStreamTestSuite : public CxxTest::TestSuite +{ + public: + void test_get_bit() { + byte contents[] = { 'a' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.getBit(), 0u); + TS_ASSERT_EQUALS(bs.getBit(), 1u); + TS_ASSERT_EQUALS(bs.getBit(), 1u); + TS_ASSERT_EQUALS(bs.pos(), 3u); + TS_ASSERT(!bs.eos()); + } + + void test_get_bits() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.getBits(3), 3u); + TS_ASSERT_EQUALS(bs.pos(), 3u); + TS_ASSERT_EQUALS(bs.getBits(8), 11u); + TS_ASSERT_EQUALS(bs.pos(), 11u); + TS_ASSERT(!bs.eos()); + } + + void test_skip() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + bs.skip(5); + TS_ASSERT_EQUALS(bs.pos(), 5u); + bs.skip(4); + TS_ASSERT_EQUALS(bs.pos(), 9u); + TS_ASSERT_EQUALS(bs.getBits(3), 6u); + TS_ASSERT(!bs.eos()); + } + + void test_rewind() { + byte contents[] = { 'a' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + bs.skip(5); + TS_ASSERT_EQUALS(bs.pos(), 5u); + bs.rewind(); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.getBits(3), 3u); + TS_ASSERT(!bs.eos()); + + TS_ASSERT_EQUALS(bs.size(), 8u); + } + + void test_peek_bit() { + byte contents[] = { 'a' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.peekBit(), 0u); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.getBit(), 0u); + TS_ASSERT_EQUALS(bs.pos(), 1u); + TS_ASSERT_EQUALS(bs.peekBit(), 1u); + TS_ASSERT_EQUALS(bs.pos(), 1u); + TS_ASSERT(!bs.eos()); + } + + void test_peek_bits() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.peekBits(3), 3u); + TS_ASSERT_EQUALS(bs.pos(), 0u); + bs.skip(3); + TS_ASSERT_EQUALS(bs.pos(), 3u); + TS_ASSERT_EQUALS(bs.peekBits(8), 11u); + TS_ASSERT_EQUALS(bs.pos(), 3u); + bs.skip(8); + TS_ASSERT_EQUALS(bs.pos(), 11u); + TS_ASSERT_EQUALS(bs.peekBits(5), 2u); + TS_ASSERT(!bs.eos()); + } + + void test_eos() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8MSB bs(ms); + bs.skip(11); + TS_ASSERT_EQUALS(bs.pos(), 11u); + TS_ASSERT_EQUALS(bs.getBits(5), 2u); + TS_ASSERT(bs.eos()); + + bs.rewind(); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT(!bs.eos()); + } + + void test_get_bits_lsb() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8LSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.getBits(3), 1u); + TS_ASSERT_EQUALS(bs.pos(), 3u); + TS_ASSERT_EQUALS(bs.getBits(8), 76u); + TS_ASSERT_EQUALS(bs.pos(), 11u); + TS_ASSERT(!bs.eos()); + } + + void test_peek_bits_lsb() { + byte contents[] = { 'a', 'b' }; + + Common::MemoryReadStream ms(contents, sizeof(contents)); + + Common::BitStream8LSB bs(ms); + TS_ASSERT_EQUALS(bs.pos(), 0u); + TS_ASSERT_EQUALS(bs.peekBits(3), 1u); + TS_ASSERT_EQUALS(bs.pos(), 0u); + bs.skip(3); + TS_ASSERT_EQUALS(bs.pos(), 3u); + TS_ASSERT_EQUALS(bs.peekBits(8), 76u); + TS_ASSERT_EQUALS(bs.pos(), 3u); + bs.skip(8); + TS_ASSERT_EQUALS(bs.pos(), 11u); + TS_ASSERT_EQUALS(bs.peekBits(5), 12u); + TS_ASSERT(!bs.eos()); + } +}; |