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test-istream-chain.c
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test-istream-chain.c
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/* Copyright (c) 2016 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);
/* 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(i_stream_is_eof(test_input));
test_assert(i_stream_is_eof(test_input2));
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);
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;
struct istream *test_input, *test_input2, *test_input3, *test_input4,
*test_input5;
struct istream_chain *chain;
const unsigned char *data;
size_t size;
test_begin("istream chain accumulate");
test_input = test_istream_create("aaaaaaaaaaaaaaaaaaaa");
test_input2 = test_istream_create("bbbbbbbbbbbbbbbbbbbbbbbbb");
test_input3 = test_istream_create("cccccccccccccccccccccccccccccc");
test_input4 = test_istream_create("ddddddddddddddddddddddddd");
test_input5 = test_istream_create("eeeeeeeeeeeeeeeeeeee");
input = i_stream_create_chain(&chain);
/* no input */
test_assert(i_stream_read(input) == 0);
/* first stream */
i_stream_chain_append(chain, test_input);
test_assert(i_stream_read_data(input, &data, &size, 0) == 1);
test_assert(size == 20);
test_assert(memcmp(data, "aaaaaaaaaaaaaaaaaaaa", 20) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* second stream */
i_stream_chain_append(chain, test_input2);
test_assert(i_stream_read_data(input, &data, &size, 10) == 1);
test_assert(size == 33);
test_assert(memcmp(data, "aaaaaaaa"
"bbbbbbbbbbbbbbbbbbbbbbbbb", 33) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* third stream */
i_stream_chain_append(chain, test_input3);
test_assert(i_stream_read_data(input, &data, &size, 25) == 1);
test_assert(size == 51);
test_assert(memcmp(data, "bbbbbbbbbbbbbbbbbbbbb"
"cccccccccccccccccccccccccccccc", 51) == 0);
/* partially skip */
i_stream_skip(input, 12);
/* forth stream */
i_stream_chain_append(chain, test_input4);
test_assert(i_stream_read_data(input, &data, &size, 40) == 1);
test_assert(size == 64);
test_assert(memcmp(data, "bbbbbbbbb"
"cccccccccccccccccccccccccccccc"
"ddddddddddddddddddddddddd", 64) == 0);
/* partially skip */
i_stream_skip(input, 6);
/* fifth stream */
i_stream_chain_append(chain, test_input5);
test_assert(i_stream_read_data(input, &data, &size, 60) == 1);
test_assert(size == 78);
test_assert(memcmp(data, "bbb"
"cccccccccccccccccccccccccccccc"
"ddddddddddddddddddddddddd"
"eeeeeeeeeeeeeeeeeeee", 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, "bbb"
"cccccccccccccccccccccccccccccc"
"ddddddddddddddddddddddddd"
"eeeeeeeeeeeeeeeeeeee", 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);
i_stream_unref(&test_input);
i_stream_unref(&test_input2);
i_stream_unref(&test_input3);
i_stream_unref(&test_input4);
i_stream_unref(&test_input5);
test_end();
}
void test_istream_chain(void)
{
test_istream_chain_basic();
test_istream_chain_early_end();
test_istream_chain_accumulate();
}