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/* Copyright (c) 2009-2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "istream-private.h"
#include "istream-base64.h"
#include "istream-try.h"
#define MIN_FULL_SIZE 1
static void test_istream_try_normal(void)
{
bool finished = FALSE;
test_begin("istream try");
for (unsigned int test = 0; test <= 10; test++) {
struct istream *test_inputs[3], *try_input;
test_inputs[0] = test_istream_create("1");
test_inputs[1] = test_istream_create("2");
test_inputs[2] = NULL;
test_istream_set_size(test_inputs[0], 0);
test_istream_set_size(test_inputs[1], 0);
try_input = istream_try_create(test_inputs, MIN_FULL_SIZE);
/* nonblocking read */
test_assert_idx(i_stream_read(try_input) == 0, test);
switch (test) {
case 0:
/* stream 0 is available */
test_istream_set_size(test_inputs[0], 1);
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
break;
case 1:
/* stream 1 is available, but not used before 0 */
test_istream_set_size(test_inputs[1], 1);
test_assert_idx(i_stream_read(try_input) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
/* continue failing stream 0 -> 1 is available */
test_inputs[0]->stream_errno = EINVAL;
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 1, test);
break;
case 2:
/* both streams are available - stream 0 is read */
test_istream_set_size(test_inputs[0], 1);
test_istream_set_size(test_inputs[1], 1);
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
break;
case 3:
/* stream 0 fails */
test_inputs[0]->stream_errno = EINVAL;
test_assert_idx(i_stream_read(try_input) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
/* continue making stream 1 available */
test_istream_set_size(test_inputs[1], 1);
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 1, test);
break;
case 4:
/* stream 1 fails */
test_inputs[1]->stream_errno = EINVAL;
test_assert_idx(i_stream_read(try_input) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
break;
case 5:
/* stream 0 fails, stream 1 is available */
test_inputs[0]->stream_errno = EINVAL;
test_istream_set_size(test_inputs[1], 1);
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 0, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 1, test);
break;
case 6:
/* stream 0 is available, stream 1 fails */
test_inputs[1]->stream_errno = EINVAL;
test_istream_set_size(test_inputs[0], 1);
test_assert_idx(i_stream_read(try_input) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[0]) == 1, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
break;
case 7:
/* both streams fail */
test_inputs[0]->stream_errno = EINVAL;
test_inputs[1]->stream_errno = EINVAL;
test_assert_idx(i_stream_read(try_input) == -1, test);
test_assert_idx(try_input->stream_errno == EINVAL, test);
break;
case 8:
/* stream 0 fails with EINVAL, stream 1 with EIO */
test_inputs[0]->stream_errno = EINVAL;
test_inputs[1]->stream_errno = EIO;
test_assert_idx(i_stream_read(try_input) == -1, test);
test_assert_idx(try_input->stream_errno == EIO, test);
break;
case 9:
/* stream 0 fails with EIO, stream 1 with EINVAL */
test_inputs[0]->stream_errno = EIO;
test_inputs[1]->stream_errno = EINVAL;
test_assert_idx(i_stream_read(try_input) == -1, test);
test_assert_idx(try_input->stream_errno == EIO, test);
break;
case 10:
/* stream 0 fails with EIO, stream 1 would work.. */
test_inputs[0]->stream_errno = EIO;
test_istream_set_size(test_inputs[1], 1);
test_assert_idx(i_stream_read(try_input) == -1, test);
test_assert_idx(try_input->stream_errno == EIO, test);
test_assert_idx(i_stream_get_data_size(test_inputs[1]) == 0, test);
finished = TRUE;
break;
}
test_assert_idx(test_inputs[0]->v_offset == 0, test);
test_assert_idx(test_inputs[1]->v_offset == 0, test);
i_stream_unref(&test_inputs[0]);
i_stream_unref(&test_inputs[1]);
i_stream_unref(&try_input);
}
i_assert(finished);
test_end();
}
static void test_istream_try_empty(void)
{
test_begin("istream try empty stream");
struct istream *test_inputs[] = {
test_istream_create(""),
test_istream_create(""),
NULL
};
struct istream *try_input =
istream_try_create(test_inputs, MIN_FULL_SIZE);
test_assert(i_stream_read(try_input) == -1);
test_assert(try_input->eof);
test_assert(try_input->stream_errno == 0);
i_stream_unref(&test_inputs[0]);
i_stream_unref(&test_inputs[1]);
i_stream_unref(&try_input);
test_end();
}
static void test_istream_try_buffer_full(void)
{
const char *test_strings[] = { "Zm9v", "YmFy" };
struct istream *test_inputs[3], *try_input, *input, *input2;
test_begin("istream try buffer full");
for (unsigned int i = 0; i < 2; i++) {
input = test_istream_create(test_strings[i]);
test_istream_set_size(input, 1);
test_istream_set_max_buffer_size(input, 1);
input2 = i_stream_create_base64_decoder(input);
i_stream_unref(&input);
test_inputs[i] = input2;
};
test_inputs[2] = NULL;
try_input = istream_try_create(test_inputs, MIN_FULL_SIZE);
test_assert(i_stream_read(try_input) == 0);
test_assert(try_input->real_stream->parent != NULL);
test_assert(i_stream_get_data_size(test_inputs[0]) == 0);
test_assert(i_stream_get_data_size(test_inputs[1]) == 0);
test_istream_set_size(test_inputs[0], 2);
test_assert(i_stream_read(try_input) == 1);
test_assert(i_stream_get_data_size(test_inputs[0]) == 1);
test_assert(i_stream_get_data_size(test_inputs[1]) == 0);
i_stream_unref(&test_inputs[0]);
i_stream_unref(&test_inputs[1]);
i_stream_unref(&try_input);
test_end();
}
void test_istream_try(void)
{
test_istream_try_normal();
test_istream_try_empty();
test_istream_try_buffer_full();
}
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