Mercurial > dovecot > core-2.2
view src/lib/test-istream-seekable.c @ 22636:96e51a11c0aa
lib: Implement t_strsplit_tabescaped_inplace()
This is a more efficient version of t_strsplit_tabescaped(), which modifies
the input string instead of duplicating it.
author | Timo Sirainen <timo.sirainen@dovecot.fi> |
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date | Sat, 04 Nov 2017 01:39:38 +0200 |
parents | 2e2563132d5f |
children | cb108f786fb4 |
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/* Copyright (c) 2009-2017 Dovecot authors, see the included COPYING file */ #include "test-lib.h" #include "istream-private.h" #include "istream-seekable.h" #include <fcntl.h> #include <unistd.h> static int fd_callback(const char **path_r, void *context ATTR_UNUSED) { int fd; *path_r = "test-lib.tmp"; fd = open(*path_r, O_RDWR | O_CREAT | O_TRUNC, 0600); if (fd == -1) i_error("creat(%s) failed: %m", *path_r); else i_unlink(*path_r); return fd; } static void test_istream_seekable_one(unsigned int buffer_size) { static const char *input_string = "xyz"; #define STREAM_COUNT 5 #define STREAM_BYTES 3 struct istream *streams[STREAM_COUNT+1]; struct istream *input; const unsigned char *data; size_t size; unsigned int i, j; for (i = 0; i < STREAM_COUNT; i++) { streams[i] = test_istream_create(input_string); streams[i]->seekable = FALSE; test_istream_set_allow_eof(streams[i], TRUE); test_istream_set_size(streams[i], 0); } streams[i] = NULL; input = i_stream_create_seekable(streams, buffer_size, fd_callback, NULL); for (i = 0; i/STREAM_BYTES < STREAM_COUNT; i++) { test_istream_set_size(streams[i/STREAM_BYTES], (i%STREAM_BYTES) + 1); if (i < buffer_size) { test_assert(i_stream_read(input) == 1); data = i_stream_get_data(input, &size); test_assert(size == i+1); } else { test_assert(i_stream_read(input) == -2); i_stream_skip(input, 1); test_assert(i_stream_read(input) == 1); data = i_stream_get_data(input, &size); test_assert(size == buffer_size); } for (j = 0; j < size; j++) { test_assert((char)data[j] == input_string[(input->v_offset + j) % STREAM_BYTES]); } } test_assert(i_stream_read(input) == -1); for (i = 0; i < STREAM_COUNT; i++) { test_assert(i_stream_is_eof(streams[i])); i_stream_unref(&streams[i]); } i_stream_unref(&input); } static void test_istream_seekable_random(void) { struct istream **streams, *input; const unsigned char *data; unsigned char *w_data; size_t size; unsigned int i, j, offset, stream_count, data_len, buffer_size; stream_count = (rand() % 10) + 2; streams = t_new(struct istream *, stream_count + 1); for (i = 0, offset = 0; i < stream_count; i++) { data_len = rand() % 100 + 1; w_data = t_malloc(data_len); for (j = 0; j < data_len; j++) w_data[j] = offset++; streams[i] = test_istream_create_data(w_data, data_len); streams[i]->seekable = FALSE; test_istream_set_allow_eof(streams[i], TRUE); } streams[i] = NULL; i_assert(offset > 0); buffer_size = (rand() % 100) + 1; size = 0; input = i_stream_create_seekable(streams, buffer_size, fd_callback, NULL); /* first read it through */ while (i_stream_read(input) > 0) { size = i_stream_get_data_size(input); i_stream_skip(input, size); } i_stream_seek(input, 0); for (i = 0; i < 100; i++) { if (rand() % 3 == 0) { i_stream_seek(input, rand() % offset); } else { ssize_t ret = i_stream_read(input); if (input->v_offset + size == offset) test_assert(ret < 0); else if (ret == -2) { test_assert(size == buffer_size); } else { test_assert(ret > 0); test_assert(input->v_offset + ret <= offset); i_stream_skip(input, rand() % (ret+1)); data = i_stream_get_data(input, &size); for (j = 0; j < size; j++) { test_assert(data[j] == (input->v_offset + j) % 256); } } } size = i_stream_get_data_size(input); } for (i = 0; i < stream_count; i++) { test_assert(i_stream_is_eof(streams[i])); i_stream_unref(&streams[i]); } i_stream_unref(&input); } static void test_istream_seekable_eof(void) { static const char *in_str = "foo"; unsigned int in_str_len = strlen(in_str); struct istream *streams[2], *input; const unsigned char *data; size_t size; test_begin("istream seekable eof"); streams[0] = i_stream_create_from_data(in_str, in_str_len); streams[0]->seekable = FALSE; streams[1] = NULL; input = i_stream_create_seekable(streams, in_str_len, fd_callback, NULL); test_assert(i_stream_read(input) == (ssize_t)in_str_len); data = i_stream_get_data(input, &size); test_assert(size == in_str_len); test_assert(memcmp(data, in_str, in_str_len) == 0); test_assert(i_stream_read(input) == -1); data = i_stream_get_data(input, &size); test_assert(size == in_str_len); test_assert(memcmp(data, in_str, in_str_len) == 0); i_stream_seek(input, size); i_stream_unref(&input); test_assert(streams[0]->v_offset == in_str_len); test_assert(streams[0]->eof); i_stream_unref(&streams[0]); test_end(); } static void test_istream_seekable_early_end(void) { struct istream *input, *streams[2]; test_begin("istream seekable early end"); streams[0] = test_istream_create("stream"); test_istream_set_size(streams[0], 3); test_istream_set_allow_eof(streams[0], FALSE); streams[0]->seekable = FALSE; streams[1] = NULL; input = i_stream_create_seekable(streams, 1000, fd_callback, NULL); test_assert(i_stream_read(input) == 3); test_istream_set_size(streams[0], 5); test_assert(i_stream_read(input) == 2); i_stream_skip(input, 5); i_stream_unref(&input); test_assert(streams[0]->v_offset == 5); i_stream_unref(&streams[0]); test_end(); } void test_istream_seekable(void) { unsigned int i; test_begin("istream seekable"); for (i = 1; i <= STREAM_BYTES*STREAM_COUNT; i++) test_istream_seekable_one(i); test_end(); test_begin("istream seekable random"); for (i = 0; i < 100; i++) T_BEGIN { test_istream_seekable_random(); } T_END; test_end(); test_istream_seekable_eof(); test_istream_seekable_early_end(); }