Serd subproject with meson
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/*
Copyright 2011-2020 David Robillard <http://drobilla.net>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#undef NDEBUG
#include "serd/serd.h"
#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define USTR(s) ((const uint8_t*)(s))
typedef struct {
int n_statements;
const SerdNode* graph;
} ReaderTest;
static SerdStatus
test_sink(void* handle,
SerdStatementFlags flags,
const SerdNode* graph,
const SerdNode* subject,
const SerdNode* predicate,
const SerdNode* object,
const SerdNode* object_datatype,
const SerdNode* object_lang)
{
(void)flags;
(void)subject;
(void)predicate;
(void)object;
(void)object_datatype;
(void)object_lang;
ReaderTest* rt = (ReaderTest*)handle;
++rt->n_statements;
rt->graph = graph;
return SERD_SUCCESS;
}
/// Returns EOF after a statement, then succeeds again (like a socket)
static size_t
eof_test_read(void* buf, size_t size, size_t nmemb, void* stream)
{
assert(nmemb == 1);
static const char* const string = "_:s1 <http://example.org/p> _:o1 .\n"
"_:s2 <http://example.org/p> _:o2 .\n";
size_t* count = (size_t*)stream;
if (*count == 34 || *count == 35 || *count + nmemb >= strlen(string)) {
++*count;
return 0;
}
memcpy((char*)buf, string + *count, size * nmemb);
*count += nmemb;
return nmemb;
}
static int
eof_test_error(void* stream)
{
(void)stream;
return 0;
}
static void
test_read_chunks(void)
{
ReaderTest* const rt = (ReaderTest*)calloc(1, sizeof(ReaderTest));
FILE* const f = tmpfile();
static const char null = 0;
SerdReader* const reader =
serd_reader_new(SERD_TURTLE, rt, free, NULL, NULL, test_sink, NULL);
assert(reader);
assert(serd_reader_get_handle(reader) == rt);
assert(f);
SerdStatus st = serd_reader_start_stream(reader, f, NULL, false);
assert(st == SERD_SUCCESS);
// Write two statement separated by null characters
fprintf(f, "@prefix eg: <http://example.org/> .\n");
fprintf(f, "eg:s eg:p eg:o1 .\n");
fwrite(&null, sizeof(null), 1, f);
fprintf(f, "eg:s eg:p eg:o2 .\n");
fwrite(&null, sizeof(null), 1, f);
fseek(f, 0, SEEK_SET);
// Read prefix
st = serd_reader_read_chunk(reader);
assert(st == SERD_SUCCESS);
assert(rt->n_statements == 0);
// Read first statement
st = serd_reader_read_chunk(reader);
assert(st == SERD_SUCCESS);
assert(rt->n_statements == 1);
// Read terminator
st = serd_reader_read_chunk(reader);
assert(st == SERD_FAILURE);
assert(rt->n_statements == 1);
// Read second statement (after null terminator)
st = serd_reader_read_chunk(reader);
assert(st == SERD_SUCCESS);
assert(rt->n_statements == 2);
// Read terminator
st = serd_reader_read_chunk(reader);
assert(st == SERD_FAILURE);
assert(rt->n_statements == 2);
// EOF
st = serd_reader_read_chunk(reader);
assert(st == SERD_FAILURE);
assert(rt->n_statements == 2);
serd_reader_free(reader);
fclose(f);
}
static void
test_read_string(void)
{
ReaderTest* rt = (ReaderTest*)calloc(1, sizeof(ReaderTest));
SerdReader* reader =
serd_reader_new(SERD_TURTLE, rt, free, NULL, NULL, test_sink, NULL);
assert(reader);
assert(serd_reader_get_handle(reader) == rt);
// Test reading a string that ends exactly at the end of input (no newline)
const SerdStatus st =
serd_reader_read_string(reader,
USTR("<http://example.org/s> <http://example.org/p> "
"<http://example.org/o> ."));
assert(!st);
assert(rt->n_statements == 1);
serd_reader_free(reader);
}
static void
test_writer(const char* const path)
{
FILE* fd = fopen(path, "wb");
SerdEnv* env = serd_env_new(NULL);
assert(fd);
SerdWriter* writer = serd_writer_new(
SERD_TURTLE, (SerdStyle)0, env, NULL, serd_file_sink, fd);
assert(writer);
serd_writer_chop_blank_prefix(writer, USTR("tmp"));
serd_writer_chop_blank_prefix(writer, NULL);
const SerdNode lit = serd_node_from_string(SERD_LITERAL, USTR("hello"));
assert(serd_writer_set_base_uri(writer, &lit));
assert(serd_writer_set_prefix(writer, &lit, &lit));
assert(serd_writer_end_anon(writer, NULL));
assert(serd_writer_get_env(writer) == env);
uint8_t buf[] = { 0x80, 0, 0, 0, 0 };
SerdNode s = serd_node_from_string(SERD_URI, USTR(""));
SerdNode p = serd_node_from_string(SERD_URI, USTR("http://example.org/pred"));
SerdNode o = serd_node_from_string(SERD_LITERAL, buf);
// Write 3 invalid statements (should write nothing)
const SerdNode* junk[][5] = { { &s, &p, NULL, NULL, NULL },
{ &s, NULL, &o, NULL, NULL },
{ NULL, &p, &o, NULL, NULL },
{ &s, &p, &SERD_NODE_NULL, NULL, NULL },
{ &s, &SERD_NODE_NULL, &o, NULL, NULL },
{ &SERD_NODE_NULL, &p, &o, NULL, NULL },
{ &s, &o, &o, NULL, NULL },
{ &o, &p, &o, NULL, NULL },
{ &s, &p, &SERD_NODE_NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL } };
for (size_t i = 0; i < sizeof(junk) / (sizeof(SerdNode*) * 5); ++i) {
assert(serd_writer_write_statement(
writer, 0, NULL,
junk[i][0], junk[i][1], junk[i][2], junk[i][3], junk[i][4]));
}
const SerdNode t = serd_node_from_string(SERD_URI, USTR("urn:Type"));
const SerdNode l = serd_node_from_string(SERD_LITERAL, USTR("en"));
const SerdNode* good[][5] = { { &s, &p, &o, NULL, NULL },
{ &s, &p, &o, &SERD_NODE_NULL, &SERD_NODE_NULL },
{ &s, &p, &o, &t, NULL },
{ &s, &p, &o, NULL, &l },
{ &s, &p, &o, &t, &l },
{ &s, &p, &o, &t, &SERD_NODE_NULL },
{ &s, &p, &o, &SERD_NODE_NULL, &l },
{ &s, &p, &o, NULL, &SERD_NODE_NULL },
{ &s, &p, &o, &SERD_NODE_NULL, NULL },
{ &s, &p, &o, &SERD_NODE_NULL, NULL } };
for (size_t i = 0; i < sizeof(good) / (sizeof(SerdNode*) * 5); ++i) {
assert(!serd_writer_write_statement(
writer, 0, NULL,
good[i][0], good[i][1], good[i][2], good[i][3], good[i][4]));
}
// Write statements with bad UTF-8 (should be replaced)
const uint8_t bad_str[] = { 0xFF, 0x90, 'h', 'i', 0 };
SerdNode bad_lit = serd_node_from_string(SERD_LITERAL, bad_str);
SerdNode bad_uri = serd_node_from_string(SERD_URI, bad_str);
assert(!serd_writer_write_statement(writer, 0, NULL,
&s, &p, &bad_lit, NULL, NULL));
assert(!serd_writer_write_statement(writer, 0, NULL,
&s, &p, &bad_uri, NULL, NULL));
// Write 1 valid statement
o = serd_node_from_string(SERD_LITERAL, USTR("hello"));
assert(!serd_writer_write_statement(writer, 0, NULL,
&s, &p, &o, NULL, NULL));
serd_writer_free(writer);
// Test chunk sink
SerdChunk chunk = { NULL, 0 };
writer = serd_writer_new(
SERD_TURTLE, (SerdStyle)0, env, NULL, serd_chunk_sink, &chunk);
o = serd_node_from_string(SERD_URI, USTR("http://example.org/base"));
assert(!serd_writer_set_base_uri(writer, &o));
serd_writer_free(writer);
uint8_t* out = serd_chunk_sink_finish(&chunk);
assert(!strcmp((const char*)out, "@base <http://example.org/base> .\n"));
serd_free(out);
// Test writing empty node
SerdNode nothing = serd_node_from_string(SERD_NOTHING, USTR(""));
FILE* const empty = tmpfile();
writer = serd_writer_new(
SERD_TURTLE, (SerdStyle)0, env, NULL, serd_file_sink, empty);
// FIXME: error handling
serd_writer_write_statement(writer, 0, NULL,
&s, &p, &nothing, NULL, NULL);
assert((size_t)ftell(empty) == strlen("<>\n\t<http://example.org/pred> "));
serd_writer_free(writer);
fclose(empty);
serd_env_free(env);
fclose(fd);
}
static void
test_reader(const char* path)
{
ReaderTest* rt = (ReaderTest*)calloc(1, sizeof(ReaderTest));
SerdReader* reader = serd_reader_new(
SERD_TURTLE, rt, free,
NULL, NULL, test_sink, NULL);
assert(reader);
assert(serd_reader_get_handle(reader) == rt);
SerdNode g = serd_node_from_string(SERD_URI, USTR("http://example.org/"));
serd_reader_set_default_graph(reader, &g);
serd_reader_add_blank_prefix(reader, USTR("tmp"));
#if defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wnonnull"
#endif
serd_reader_add_blank_prefix(reader, NULL);
#if defined(__GNUC__)
# pragma GCC diagnostic pop
#endif
assert(serd_reader_read_file(reader, USTR("http://notafile")));
assert(serd_reader_read_file(reader, USTR("file:///better/not/exist")));
assert(serd_reader_read_file(reader, USTR("file://")));
const SerdStatus st = serd_reader_read_file(reader, USTR(path));
assert(!st);
assert(rt->n_statements == 13);
assert(rt->graph && rt->graph->buf &&
!strcmp((const char*)rt->graph->buf, "http://example.org/"));
assert(serd_reader_read_string(reader, USTR("This isn't Turtle at all.")));
// A read of a big page hits EOF then fails to read chunks immediately
{
FILE* temp = tmpfile();
assert(temp);
fprintf(temp, "_:s <http://example.org/p> _:o .\n");
fflush(temp);
fseek(temp, 0L, SEEK_SET);
serd_reader_start_stream(reader, temp, NULL, true);
assert(serd_reader_read_chunk(reader) == SERD_SUCCESS);
assert(serd_reader_read_chunk(reader) == SERD_FAILURE);
assert(serd_reader_read_chunk(reader) == SERD_FAILURE);
serd_reader_end_stream(reader);
fclose(temp);
}
// A byte-wise reader that hits EOF once then continues (like a socket)
{
size_t n_reads = 0;
serd_reader_start_source_stream(reader,
(SerdSource)eof_test_read,
(SerdStreamErrorFunc)eof_test_error,
&n_reads,
NULL,
1);
assert(serd_reader_read_chunk(reader) == SERD_SUCCESS);
assert(serd_reader_read_chunk(reader) == SERD_FAILURE);
assert(serd_reader_read_chunk(reader) == SERD_SUCCESS);
assert(serd_reader_read_chunk(reader) == SERD_FAILURE);
}
serd_reader_free(reader);
}
int
main(void)
{
test_read_chunks();
test_read_string();
const char* const path = "serd_test.ttl";
test_writer(path);
test_reader(path);
printf("Success\n");
return 0;
}