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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/data/lz4_output_encoder.h>
#include <vespa/vespalib/data/lz4_input_decoder.h>
#include <vespa/vespalib/data/simple_buffer.h>
#include <vespa/vespalib/data/memory_input.h>
#include <vespa/vespalib/test/chunked_input.h>
using namespace vespalib;
using vespalib::test::ChunkedInput;
void transfer(Input &input, Output &output) {
for (Memory src = input.obtain(); src.size > 0; src = input.obtain()) {
auto dst = output.reserve(src.size);
ASSERT_GREATER_EQUAL(dst.size, src.size);
memcpy(dst.data, src.data, src.size);
output.commit(src.size);
input.evict(src.size);
}
}
TEST("require that lz4 encode-decode works") {
SimpleBuffer data;
for (size_t i = 0; i < 100; ++i) {
data.add((i % 7) + (i * 5) + (i >> 3));
}
SimpleBuffer encoded;
{
MemoryInput memory_input(data.get());
ChunkedInput chunked_input(memory_input, 3);
Lz4OutputEncoder lz4_encoder(encoded, 10);
transfer(chunked_input, lz4_encoder);
}
SimpleBuffer decoded;
{
MemoryInput memory_input(encoded.get());
ChunkedInput chunked_input(memory_input, 3);
Lz4InputDecoder input_decoder(chunked_input, 10);
transfer(input_decoder, decoded);
EXPECT_TRUE(!input_decoder.failed());
EXPECT_EQUAL(input_decoder.reason(), vespalib::string());
}
EXPECT_NOT_EQUAL(data.get(), encoded.get());
EXPECT_EQUAL(data.get(), decoded.get());
}
TEST_MAIN() { TEST_RUN_ALL(); }
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