/* Copyright 2011-2020 David Robillard 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 #include #include #include #include #include #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; } /// Reads a null byte 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(size == 1); assert(nmemb == 1); (void)size; static const char* const string = "_:s1 _:o1 .\n" "_:s2 _:o2 .\n"; size_t* const count = (size_t*)stream; // Normal reading for the first statement if (*count < 35) { *(char*)buf = string[*count]; ++*count; return nmemb; } // EOF for the first read at the start of the second statement if (*count == 35) { assert(string[*count] == '_'); ++*count; return 0; } if (*count >= strlen(string)) { return 0; } // Normal reading after the EOF, adjusting for the skipped index 35 *(char*)buf = string[*count - 1]; ++*count; 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: .\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(" " " .")); 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, &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}}; 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 .\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, ¬hing, NULL, NULL); assert((size_t)ftell(empty) == strlen("<>\n\t ")); 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 _: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; }