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AK: Remove the fallible constructor from LittleEndianInputBitStream

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This commit is contained in:
Tim Schumacher 2023-01-30 11:04:23 +01:00 • committed by Linus Groh
parent fa09152e23
commit 261d62438f
4 changed files with 18 additions and 23 deletions
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20
Tests/AK/TestBitStream.cpp
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@ -16,23 +16,23 @@ TEST_CASE(little_endian_bit_stream_input_output_match)
// Note: The bit stream only ever reads from/writes to the underlying stream in one byte chunks,
// so testing with sizes that will not trigger a write will yield unexpected results.
auto bit_write_stream = MUST(LittleEndianOutputBitStream::construct(MaybeOwned<AK::Stream>(*memory_stream)));
auto bit_read_stream = MUST(LittleEndianInputBitStream::construct(MaybeOwned<AK::Stream>(*memory_stream)));
LittleEndianInputBitStream bit_read_stream { MaybeOwned<AK::Stream>(*memory_stream) };
// Test two mirrored chunks of a fully mirrored pattern to check that we are not dropping bits.
{
MUST(bit_write_stream->write_bits(0b1111u, 4));
MUST(bit_write_stream->write_bits(0b1111u, 4));
auto result = MUST(bit_read_stream->read_bits(4));
auto result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b1111u, result);
result = MUST(bit_read_stream->read_bits(4));
result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b1111u, result);
}
{
MUST(bit_write_stream->write_bits(0b0000u, 4));
MUST(bit_write_stream->write_bits(0b0000u, 4));
auto result = MUST(bit_read_stream->read_bits(4));
auto result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b0000u, result);
result = MUST(bit_read_stream->read_bits(4));
result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b0000u, result);
}
@ -40,9 +40,9 @@ TEST_CASE(little_endian_bit_stream_input_output_match)
{
MUST(bit_write_stream->write_bits(0b1000u, 4));
MUST(bit_write_stream->write_bits(0b1000u, 4));
auto result = MUST(bit_read_stream->read_bits(4));
auto result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b1000u, result);
result = MUST(bit_read_stream->read_bits(4));
result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b1000u, result);
}
@ -50,16 +50,16 @@ TEST_CASE(little_endian_bit_stream_input_output_match)
{
MUST(bit_write_stream->write_bits(0b1000u, 4));
MUST(bit_write_stream->write_bits(0b0100u, 4));
auto result = MUST(bit_read_stream->read_bits(4));
auto result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b1000u, result);
result = MUST(bit_read_stream->read_bits(4));
result = MUST(bit_read_stream.read_bits(4));
EXPECT_EQ(0b0100u, result);
}
// Test a pattern that spans multiple bytes.
{
MUST(bit_write_stream->write_bits(0b1101001000100001u, 16));
auto result = MUST(bit_read_stream->read_bits(16));
auto result = MUST(bit_read_stream.read_bits(16));
EXPECT_EQ(0b1101001000100001u, result);
}
}