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AK: Remove history from DuplexMemoryStream.

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That feature was really only useful for Compress::DeflateDecompressor
but that is now using CircularDuplexBuffer instead.
This commit is contained in:
asynts 2020-09-01 11:30:41 +02:00 • committed by Andreas Kling
parent 9ce4475907
commit f9516a99bf
2 changed files with 5 additions and 70 deletions
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42
AK/Tests/TestStream.cpp
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@ -123,7 +123,7 @@ TEST_CASE(duplex_simple)
EXPECT(stream.eof());
}
TEST_CASE(duplex_seek_into_history)
TEST_CASE(duplex_large_buffer)
{
DuplexMemoryStream stream;
@ -131,56 +131,22 @@ TEST_CASE(duplex_seek_into_history)
EXPECT_EQ(stream.remaining(), 0ul);
for (size_t idx = 0; idx < 256; ++idx) {
for (size_t idx = 0; idx < 256; ++idx)
stream << one_kibibyte;
}
EXPECT_EQ(stream.remaining(), 256 * 1024ul);
for (size_t idx = 0; idx < 128; ++idx) {
for (size_t idx = 0; idx < 128; ++idx)
stream >> one_kibibyte;
}
EXPECT_EQ(stream.remaining(), 128 * 1024ul);
// We now have 128KiB on the stream. Because the stream has a
// history size of 64KiB, we should be able to seek to 64KiB.
static_assert(DuplexMemoryStream::history_size == 64 * 1024);
stream.rseek(64 * 1024);
EXPECT_EQ(stream.remaining(), 192 * 1024ul);
for (size_t idx = 0; idx < 192; ++idx) {
for (size_t idx = 0; idx < 128; ++idx)
stream >> one_kibibyte;
}
EXPECT(stream.eof());
}
TEST_CASE(duplex_wild_seeking)
{
DuplexMemoryStream stream;
int input0 = 42, input1 = 13, input2 = -12;
int output0, output1, output2;
stream << input2;
stream << input0 << input1;
stream.rseek(0);
stream << input2 << input0;
stream.rseek(4);
stream >> output0 >> output1 >> output2;
EXPECT(!stream.eof());
EXPECT_EQ(input0, output0);
EXPECT_EQ(input1, output1);
EXPECT_EQ(input2, output2);
stream.discard_or_error(4);
EXPECT(stream.eof());
}
TEST_CASE(read_endian_values)
{
const u8 input[] { 0, 1, 2, 3, 4, 5, 6, 7 };