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/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "istream-private.h"
#include "istream-chain.h"
static void test_istream_chain_basic(void)
{
struct istream *input, *test_input, *test_input2;
struct istream_chain *chain;
const unsigned char *data;
size_t size;
test_begin("istream chain");
test_input = test_istream_create("stream1");
test_input2 = test_istream_create("STREAM2");
input = i_stream_create_chain(&chain, IO_BLOCK_SIZE);
/* no input */
test_assert(i_stream_read(input) == 0);
/* stream1 input */
i_stream_chain_append(chain, test_input);
test_assert(i_stream_read(input) == 7);
data = i_stream_get_data(input, &size);
test_assert(size == 7 && memcmp(data, "stream1", 7) == 0);
test_assert(i_stream_read(input) == 0);
data = i_stream_get_data(input, &size);
test_assert(size == 7 && memcmp(data, "stream1", 7) == 0);
/* STREAM2 input */
i_stream_chain_append(chain, test_input2);
test_assert(i_stream_read(input) == 7);
data = i_stream_get_data(input, &size);
test_assert(size == 14 && memcmp(data, "stream1STREAM2", 14) == 0);
test_assert(i_stream_read(input) == 0);
data = i_stream_get_data(input, &size);
test_assert(size == 14 && memcmp(data, "stream1STREAM2", 14) == 0);
/* EOF */
i_stream_chain_append_eof(chain);
test_assert(i_stream_read(input) == -1 &&
input->eof && input->stream_errno == 0);
data = i_stream_get_data(input, &size);
test_assert(size == 14 && memcmp(data, "stream1STREAM2", 14) == 0);
i_stream_unref(&input);
test_assert(test_input->eof && test_input->stream_errno == 0);
test_assert(test_input2->eof && test_input2->stream_errno == 0);
i_stream_unref(&test_input);
i_stream_unref(&test_input2);
test_end();
}
static void test_istream_chain_early_end(void)
{
struct istream *input, *test_input;
struct istream_chain *chain;
test_begin("istream chain early end");
test_input = test_istream_create("string");
test_istream_set_size(test_input, 3);
test_istream_set_allow_eof(test_input, FALSE);
input = i_stream_create_chain(&chain, IO_BLOCK_SIZE);
i_stream_chain_append(chain, test_input);
test_assert(i_stream_read(input) == 3);
test_istream_set_size(test_input, 5);
test_assert(i_stream_read(input) == 2);
/* with current implementation we could skip less than 5 and have
v_offset<5, but I don't think that can work in all situations.
the normal case is anyway that we'll read everything up until some
point and skip over all the data up to there. */
i_stream_skip(input, 5);
i_stream_unref(&input);
test_assert(test_input->v_offset == 5);
i_stream_unref(&test_input);
test_end();
}
static void test_istream_chain_accumulate(void)
{
struct istream *input, *tmp_istream;
struct istream *test_istreams[5];
struct istream_chain *chain;
const unsigned char *data;
size_t size;
test_begin("istream chain accumulate");
test_istreams[0] = test_istream_create("abcdefghijklmnopqrst");
test_istreams[1] = test_istream_create("ABCDEFGHIJKLMNOPQRSTUVWXY");
test_istreams[2] = test_istream_create("!\"#$%&'()*+,-./01234567890:;<=");
test_istreams[3] = test_istream_create("z1y2x3w4v5u6t7s8r9q0p.o,n");
test_istreams[4] = test_istream_create("aAbBcCdDeEfFgGhHiIjJ");
input = i_stream_create_chain(&chain, IO_BLOCK_SIZE);
/* no input */
test_assert(i_stream_read(input) == 0);
/* first stream */
i_stream_chain_append(chain, test_istreams[0]);
tmp_istream = test_istreams[0]; i_stream_unref(&tmp_istream);
test_assert(i_stream_read_data(input, &data, &size, 0) == 1);
test_assert(size == 20);
test_assert(memcmp(data, "abcdefghijklmnopqrst", 20) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* second stream */
i_stream_chain_append(chain, test_istreams[1]);
tmp_istream = test_istreams[1]; i_stream_unref(&tmp_istream);
test_istream_set_size(test_istreams[1], 0);
test_assert(i_stream_read_data(input, &data, &size, 10) == 0);
test_assert(size == 8);
test_istream_set_size(test_istreams[1], 10);
test_assert(i_stream_read_data(input, &data, &size, 10) == 1);
test_assert(size == 18);
test_istream_set_allow_eof(test_istreams[1], FALSE);
test_assert(i_stream_read(input) == 0);
test_istream_set_size(test_istreams[1], 25);
test_istream_set_allow_eof(test_istreams[1], TRUE);
test_assert(i_stream_read_data(input, &data, &size, 30) == 1);
test_assert(size == 33);
test_assert(memcmp(data, "mnopqrst"
"ABCDEFGHIJKLMNOPQRSTUVWXY", 33) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* third stream */
i_stream_chain_append(chain, test_istreams[2]);
tmp_istream = test_istreams[2]; i_stream_unref(&tmp_istream);
test_istream_set_size(test_istreams[2], 0);
test_assert(i_stream_read(input) == 0);
test_istream_set_size(test_istreams[2], 30);
test_assert(i_stream_read_data(input, &data, &size, 25) == 1);
test_assert(size == 51);
test_assert(memcmp(data, "EFGHIJKLMNOPQRSTUVWXY"
"!\"#$%&'()*+,-./01234567890:;<=", 51) == 0);
test_assert(i_stream_read(input) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* forth stream */
i_stream_chain_append(chain, test_istreams[3]);
tmp_istream = test_istreams[3]; i_stream_unref(&tmp_istream);
test_assert(i_stream_read_data(input, &data, &size, 40) == 1);
test_assert(size == 64);
test_assert(memcmp(data, "QRSTUVWXY"
"!\"#$%&'()*+,-./01234567890:;<="
"z1y2x3w4v5u6t7s8r9q0p.o,n", 64) == 0);
/* partially skip */
i_stream_skip(input, 6);
/* fifth stream */
i_stream_chain_append(chain, test_istreams[4]);
tmp_istream = test_istreams[4]; i_stream_unref(&tmp_istream);
test_assert(i_stream_read_data(input, &data, &size, 60) == 1);
test_assert(size == 78);
test_assert(memcmp(data, "WXY"
"!\"#$%&'()*+,-./01234567890:;<="
"z1y2x3w4v5u6t7s8r9q0p.o,n"
"aAbBcCdDeEfFgGhHiIjJ", 78) == 0);
/* EOF */
i_stream_chain_append_eof(chain);
test_assert(i_stream_read(input) == -1);
test_assert(input->eof && input->stream_errno == 0);
test_assert(i_stream_read_data(input, &data, &size, 78) == -1);
test_assert(size == 78);
test_assert(memcmp(data, "WXY"
"!\"#$%&'()*+,-./01234567890:;<="
"z1y2x3w4v5u6t7s8r9q0p.o,n"
"aAbBcCdDeEfFgGhHiIjJ", 78) == 0);
/* skip rest */
i_stream_skip(input, 78);
test_assert(i_stream_read(input) == -1);
test_assert(input->eof && input->stream_errno == 0);
data = i_stream_get_data(input, &size);
test_assert(size == 0);
i_stream_unref(&input);
test_end();
}
void test_istream_chain(void)
{
test_istream_chain_basic();
test_istream_chain_early_end();
test_istream_chain_accumulate();
}
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