be more precise in long long int literal specification for ANSI compilers (gcc3 requi...
[platform/upstream/flac.git] / src / test_libFLAC / metadata_manip.c
index 2c23237..d8e73d9 100644 (file)
@@ -1,5 +1,5 @@
 /* test_libFLAC - Unit tester for libFLAC
- * Copyright (C) 2002,2003  Josh Coalson
+ * Copyright (C) 2002,2003,2004  Josh Coalson
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
 #include <stdio.h>
 #include <stdlib.h> /* for malloc() */
 
+#if defined _MSC_VER || defined __MINGW32__
+#include <sys/utime.h> /* for utime() */
+#include <io.h> /* for chmod() */
+#else
+#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
+#include <utime.h> /* for utime() */
+#include <unistd.h> /* for chown(), unlink() */
+#endif
+#include <sys/stat.h> /* for stat(), maybe chmod() */
+
+
 /******************************************************************************
        The general strategy of these tests (for interface levels 1 and 2) is
        to create a dummy FLAC file with a known set of initial metadata
@@ -148,6 +159,202 @@ static void delete_from_our_metadata_(unsigned position)
        }
 }
 
+/*
+ * This wad of functions supports filename- and callback-based chain reading/writing.
+ * Everything up to set_file_stats_() is copied from libFLAC/metadata_iterators.c
+ */
+FLAC__bool open_tempfile_(const char *filename, FILE **tempfile, char **tempfilename)
+{
+       static const char *tempfile_suffix = ".metadata_edit";
+
+       if(0 == (*tempfilename = (char*)malloc(strlen(filename) + strlen(tempfile_suffix) + 1)))
+               return false;
+       strcpy(*tempfilename, filename);
+       strcat(*tempfilename, tempfile_suffix);
+
+       if(0 == (*tempfile = fopen(*tempfilename, "wb")))
+               return false;
+
+       return true;
+}
+
+void cleanup_tempfile_(FILE **tempfile, char **tempfilename)
+{
+       if(0 != *tempfile) {
+               (void)fclose(*tempfile);
+               *tempfile = 0;
+       }
+
+       if(0 != *tempfilename) {
+               (void)unlink(*tempfilename);
+               free(*tempfilename);
+               *tempfilename = 0;
+       }
+}
+
+FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename)
+{
+       FLAC__ASSERT(0 != filename);
+       FLAC__ASSERT(0 != tempfile);
+       FLAC__ASSERT(0 != tempfilename);
+       FLAC__ASSERT(0 != *tempfilename);
+
+       if(0 != *tempfile) {
+               (void)fclose(*tempfile);
+               *tempfile = 0;
+       }
+
+#if defined _MSC_VER || defined __MINGW32__
+       if(unlink(filename) < 0) {
+               cleanup_tempfile_(tempfile, tempfilename);
+               return false;
+       }
+#endif
+
+       if(0 != rename(*tempfilename, filename)) {
+               cleanup_tempfile_(tempfile, tempfilename);
+               return false;
+       }
+
+       cleanup_tempfile_(tempfile, tempfilename);
+
+       return true;
+}
+
+FLAC__bool get_file_stats_(const char *filename, struct stat *stats)
+{
+       FLAC__ASSERT(0 != filename);
+       FLAC__ASSERT(0 != stats);
+       return (0 == stat(filename, stats));
+}
+
+void set_file_stats_(const char *filename, struct stat *stats)
+{
+       struct utimbuf srctime;
+
+       FLAC__ASSERT(0 != filename);
+       FLAC__ASSERT(0 != stats);
+
+       srctime.actime = stats->st_atime;
+       srctime.modtime = stats->st_mtime;
+       (void)chmod(filename, stats->st_mode);
+       (void)utime(filename, &srctime);
+#if !defined _MSC_VER && !defined __MINGW32__
+       (void)chown(filename, stats->st_uid, -1);
+       (void)chown(filename, -1, stats->st_gid);
+#endif
+}
+
+#ifdef FLAC__VALGRIND_TESTING
+static size_t chain_write_cb_(const void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle)
+{
+       FILE *stream = (FILE*)handle;
+       size_t ret = fwrite(ptr, size, nmemb, stream);
+       if(!ferror(stream))
+               fflush(stream);
+       return ret;
+}
+#endif
+
+static int chain_seek_cb_(FLAC__IOHandle handle, FLAC__int64 offset, int whence)
+{
+       long o = (long)offset;
+       FLAC__ASSERT(offset == o);
+       return fseek((FILE*)handle, o, whence);
+}
+
+static FLAC__int64 chain_tell_cb_(FLAC__IOHandle handle)
+{
+       return ftell((FILE*)handle);
+}
+
+static int chain_eof_cb_(FLAC__IOHandle handle)
+{
+       return feof((FILE*)handle);
+}
+
+static FLAC__bool write_chain_(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats, FLAC__bool filename_based, const char *filename)
+{
+       if(filename_based)
+               return FLAC__metadata_chain_write(chain, use_padding, preserve_file_stats);
+       else {
+               FLAC__IOCallbacks callbacks;
+
+               memset(&callbacks, 0, sizeof(callbacks));
+               callbacks.read = (FLAC__IOCallback_Read)fread;
+#ifdef FLAC__VALGRIND_TESTING
+               callbacks.write = chain_write_cb_;
+#else
+               callbacks.write = (FLAC__IOCallback_Write)fwrite;
+#endif
+               callbacks.seek = chain_seek_cb_;
+               callbacks.eof = chain_eof_cb_;
+
+               if(FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
+                       struct stat stats;
+                       FILE *file, *tempfile;
+                       char *tempfilename;
+                       if(preserve_file_stats) {
+                               if(!get_file_stats_(filename, &stats))
+                                       return false;
+                       }
+                       if(0 == (file = fopen(filename, "rb")))
+                               return false; /*@@@ chain status still says OK though */
+                       if(!open_tempfile_(filename, &tempfile, &tempfilename)) {
+                               fclose(file);
+                               cleanup_tempfile_(&tempfile, &tempfilename);
+                               return false; /*@@@ chain status still says OK though */
+                       }
+                       if(!FLAC__metadata_chain_write_with_callbacks_and_tempfile(chain, use_padding, (FLAC__IOHandle)file, callbacks, (FLAC__IOHandle)tempfile, callbacks)) {
+                               fclose(file);
+                               fclose(tempfile);
+                               return false;
+                       }
+                       fclose(file);
+                       fclose(tempfile);
+                       file = tempfile = 0;
+                       if(!transport_tempfile_(filename, &tempfile, &tempfilename))
+                               return false;
+                       if(preserve_file_stats)
+                               set_file_stats_(filename, &stats);
+               }
+               else {
+                       FILE *file = fopen(filename, "r+b");
+                       if(0 == file)
+                               return false; /*@@@ chain status still says OK though */
+                       if(!FLAC__metadata_chain_write_with_callbacks(chain, use_padding, (FLAC__IOHandle)file, callbacks))
+                               return false;
+                       fclose(file);
+               }
+       }
+
+       return true;
+}
+
+static FLAC__bool read_chain_(FLAC__Metadata_Chain *chain, const char *filename, FLAC__bool filename_based)
+{
+       if(filename_based)
+               return FLAC__metadata_chain_read(chain, flacfile_);
+       else {
+               FLAC__IOCallbacks callbacks;
+
+               memset(&callbacks, 0, sizeof(callbacks));
+               callbacks.read = (FLAC__IOCallback_Read)fread;
+               callbacks.seek = chain_seek_cb_;
+               callbacks.tell = chain_tell_cb_;
+
+               {
+                       FLAC__bool ret;
+                       FILE *file = fopen(filename, "rb");
+                       if(0 == file)
+                               return false; /*@@@ chain status still says OK though */
+                       ret = FLAC__metadata_chain_read_with_callbacks(chain, (FLAC__IOHandle)file, callbacks);
+                       fclose(file);
+                       return ret;
+               }
+       }
+}
+
 /* function for comparing our metadata to a FLAC__Metadata_Chain */
 
 static FLAC__bool compare_chain_(FLAC__Metadata_Chain *chain, unsigned current_position, FLAC__StreamMetadata *current_block)
@@ -177,7 +384,7 @@ static FLAC__bool compare_chain_(FLAC__Metadata_Chain *chain, unsigned current_p
                        return die_("getting block from iterator");
                }
 
-               if(!compare_block_(our_metadata_.blocks[i], block)) {
+               if(!mutils__compare_block(our_metadata_.blocks[i], block)) {
                        FLAC__metadata_iterator_delete(iterator);
                        return die_("metadata block mismatch");
                }
@@ -198,7 +405,7 @@ static FLAC__bool compare_chain_(FLAC__Metadata_Chain *chain, unsigned current_p
                printf("CURRENT_POSITION... ");
                fflush(stdout);
 
-               if(!compare_block_(our_metadata_.blocks[current_position], current_block))
+               if(!mutils__compare_block(our_metadata_.blocks[current_position], current_block))
                        return die_("metadata block mismatch");
        }
 
@@ -254,7 +461,7 @@ static void decoder_metadata_callback_compare_(const FLAC__FileDecoder *decoder,
                dcd->error_occurred = true;
        }
        else {
-               if(!compare_block_(our_metadata_.blocks[mc_our_block_number_], metadata)) {
+               if(!mutils__compare_block(our_metadata_.blocks[mc_our_block_number_], metadata)) {
                        (void)die_("metadata block mismatch");
                        dcd->error_occurred = true;
                }
@@ -327,7 +534,7 @@ static FLAC__bool generate_file_()
        return true;
 }
 
-static FLAC__bool test_file_(const char *filename, void (*metadata_callback)(const FLAC__FileDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data))
+static FLAC__bool test_file_(const char *filename, FLAC__FileDecoderMetadataCallback metadata_callback)
 {
        FLAC__FileDecoder *decoder;
        decoder_client_struct decoder_client_data;
@@ -522,7 +729,7 @@ static FLAC__bool test_level_1_()
        printf("testing FLAC__metadata_simple_iterator_set_block() on read-only file...\n");
 
        if(!FLAC__metadata_simple_iterator_set_block(iterator, (FLAC__StreamMetadata*)99, false))
-               printf("PASSED.  FLAC__metadata_simple_iterator_set_block() returned false like it should\n");
+               printf("OK: FLAC__metadata_simple_iterator_set_block() returned false like it should\n");
        else
                return die_("FLAC__metadata_simple_iterator_set_block() returned true but shouldn't have");
 
@@ -1087,7 +1294,7 @@ static FLAC__bool test_level_1_()
        return true;
 }
 
-static FLAC__bool test_level_2_()
+static FLAC__bool test_level_2_(FLAC__bool filename_based)
 {
        FLAC__Metadata_Iterator *iterator;
        FLAC__Metadata_Chain *chain;
@@ -1098,7 +1305,7 @@ static FLAC__bool test_level_2_()
        /* initialize 'data' to avoid Valgrind errors */
        memset(data, 0, sizeof(data));
 
-       printf("\n\n++++++ testing level 2 interface\n");
+       printf("\n\n++++++ testing level 2 interface (%s-based)\n", filename_based? "filename":"callback");
 
        printf("generate read-only file\n");
 
@@ -1115,7 +1322,7 @@ static FLAC__bool test_level_2_()
 
        printf("read chain\n");
 
-       if(!FLAC__metadata_chain_read(chain, flacfile_))
+       if(!read_chain_(chain, flacfile_, filename_based))
                return die_c_("reading chain", FLAC__metadata_chain_status(chain));
 
        printf("[S]VP\ttest initial metadata\n");
@@ -1149,7 +1356,7 @@ static FLAC__bool test_level_2_()
        if(!replace_in_our_metadata_(block, our_current_position, /*copy=*/true))
                return die_("copying object");
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/true))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/true, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, true)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1179,7 +1386,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1196,7 +1403,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1213,7 +1420,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1230,7 +1437,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1247,7 +1454,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1269,7 +1476,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1287,7 +1494,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1304,7 +1511,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1322,7 +1529,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1340,7 +1547,7 @@ static FLAC__bool test_level_2_()
        if(!FLAC__metadata_iterator_set_block(iterator, app))
                return die_c_("FLAC__metadata_iterator_set_block(iterator, app)", FLAC__metadata_chain_status(chain));
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, our_current_position, FLAC__metadata_iterator_get_block(iterator)))
                return false;
@@ -1456,7 +1663,7 @@ static FLAC__bool test_level_2_()
        delete_from_our_metadata_(4);
        delete_from_our_metadata_(3);
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, 0, 0))
                return false;
@@ -1468,7 +1675,7 @@ static FLAC__bool test_level_2_()
        our_metadata_.blocks[4]->length += (FLAC__STREAM_METADATA_HEADER_LENGTH + our_metadata_.blocks[2]->length);
        delete_from_our_metadata_(2);
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/true, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, true, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, 0, 0))
                return false;
@@ -1567,7 +1774,7 @@ static FLAC__bool test_level_2_()
        printf("SV\tmerge padding\n");
        FLAC__metadata_chain_merge_padding(chain);
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, 0, 0))
                return false;
@@ -1577,7 +1784,7 @@ static FLAC__bool test_level_2_()
        printf("SV\tsort padding\n");
        FLAC__metadata_chain_sort_padding(chain);
 
-       if(!FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+       if(!write_chain_(chain, /*use_padding=*/false, /*preserve_file_stats=*/false, filename_based, flacfile_))
                return die_c_("during FLAC__metadata_chain_write(chain, false, false)", FLAC__metadata_chain_status(chain));
        if(!compare_chain_(chain, 0, 0))
                return false;
@@ -1594,6 +1801,168 @@ static FLAC__bool test_level_2_()
        return true;
 }
 
+static FLAC__bool test_level_2_misc_()
+{
+       FLAC__Metadata_Iterator *iterator;
+       FLAC__Metadata_Chain *chain;
+       FLAC__IOCallbacks callbacks;
+
+       memset(&callbacks, 0, sizeof(callbacks));
+       callbacks.read = (FLAC__IOCallback_Read)fread;
+#ifdef FLAC__VALGRIND_TESTING
+       callbacks.write = chain_write_cb_;
+#else
+       callbacks.write = (FLAC__IOCallback_Write)fwrite;
+#endif
+       callbacks.seek = chain_seek_cb_;
+       callbacks.tell = chain_tell_cb_;
+       callbacks.eof = chain_eof_cb_;
+
+       printf("\n\n++++++ testing level 2 interface (mismatched read/write protections)\n");
+
+       printf("generate file\n");
+
+       if(!generate_file_())
+               return false;
+
+       printf("create chain\n");
+
+       if(0 == (chain = FLAC__metadata_chain_new()))
+               return die_("allocating chain");
+
+       printf("read chain (filename-based)\n");
+
+       if(!FLAC__metadata_chain_read(chain, flacfile_))
+               return die_c_("reading chain", FLAC__metadata_chain_status(chain));
+
+       printf("write chain with wrong method FLAC__metadata_chain_write_with_callbacks()\n");
+       {
+               if(FLAC__metadata_chain_write_with_callbacks(chain, /*use_padding=*/false, 0, callbacks))
+                       return die_c_("mismatched write should have failed", FLAC__metadata_chain_status(chain));
+               if(FLAC__metadata_chain_status(chain) != FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH)
+                       return die_c_("expected FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH", FLAC__metadata_chain_status(chain));
+               printf("  OK: FLAC__metadata_chain_write_with_callbacks() returned false,FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH like it should\n");
+       }
+
+       printf("read chain (filename-based)\n");
+
+       if(!FLAC__metadata_chain_read(chain, flacfile_))
+               return die_c_("reading chain", FLAC__metadata_chain_status(chain));
+
+       printf("write chain with wrong method FLAC__metadata_chain_write_with_callbacks_and_tempfile()\n");
+       {
+               if(FLAC__metadata_chain_write_with_callbacks_and_tempfile(chain, /*use_padding=*/false, 0, callbacks, 0, callbacks))
+                       return die_c_("mismatched write should have failed", FLAC__metadata_chain_status(chain));
+               if(FLAC__metadata_chain_status(chain) != FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH)
+                       return die_c_("expected FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH", FLAC__metadata_chain_status(chain));
+               printf("  OK: FLAC__metadata_chain_write_with_callbacks_and_tempfile() returned false,FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH like it should\n");
+       }
+
+       printf("read chain (callback-based)\n");
+       {
+               FILE *file = fopen(flacfile_, "rb");
+               if(0 == file)
+                       return die_("opening file");
+               if(!FLAC__metadata_chain_read_with_callbacks(chain, (FLAC__IOHandle)file, callbacks)) {
+                       fclose(file);
+                       return die_c_("reading chain", FLAC__metadata_chain_status(chain));
+               }
+               fclose(file);
+       }
+
+       printf("write chain with wrong method FLAC__metadata_chain_write()\n");
+       {
+               if(FLAC__metadata_chain_write(chain, /*use_padding=*/false, /*preserve_file_stats=*/false))
+                       return die_c_("mismatched write should have failed", FLAC__metadata_chain_status(chain));
+               if(FLAC__metadata_chain_status(chain) != FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH)
+                       return die_c_("expected FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH", FLAC__metadata_chain_status(chain));
+               printf("  OK: FLAC__metadata_chain_write() returned false,FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH like it should\n");
+       }
+
+       printf("read chain (callback-based)\n");
+       {
+               FILE *file = fopen(flacfile_, "rb");
+               if(0 == file)
+                       return die_("opening file");
+               if(!FLAC__metadata_chain_read_with_callbacks(chain, (FLAC__IOHandle)file, callbacks)) {
+                       fclose(file);
+                       return die_c_("reading chain", FLAC__metadata_chain_status(chain));
+               }
+               fclose(file);
+       }
+
+       printf("testing FLAC__metadata_chain_check_if_tempfile_needed()... ");
+
+       if(!FLAC__metadata_chain_check_if_tempfile_needed(chain, /*use_padding=*/false))
+               printf("OK: FLAC__metadata_chain_check_if_tempfile_needed() returned false like it should\n");
+       else
+               return die_("FLAC__metadata_chain_check_if_tempfile_needed() returned true but shouldn't have");
+
+       printf("write chain with wrong method FLAC__metadata_chain_write_with_callbacks_and_tempfile()\n");
+       {
+               if(FLAC__metadata_chain_write_with_callbacks_and_tempfile(chain, /*use_padding=*/false, 0, callbacks, 0, callbacks))
+                       return die_c_("mismatched write should have failed", FLAC__metadata_chain_status(chain));
+               if(FLAC__metadata_chain_status(chain) != FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL)
+                       return die_c_("expected FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL", FLAC__metadata_chain_status(chain));
+               printf("  OK: FLAC__metadata_chain_write_with_callbacks_and_tempfile() returned false,FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL like it should\n");
+       }
+
+       printf("read chain (callback-based)\n");
+       {
+               FILE *file = fopen(flacfile_, "rb");
+               if(0 == file)
+                       return die_("opening file");
+               if(!FLAC__metadata_chain_read_with_callbacks(chain, (FLAC__IOHandle)file, callbacks)) {
+                       fclose(file);
+                       return die_c_("reading chain", FLAC__metadata_chain_status(chain));
+               }
+               fclose(file);
+       }
+
+       printf("create iterator\n");
+       if(0 == (iterator = FLAC__metadata_iterator_new()))
+               return die_("allocating memory for iterator");
+
+       FLAC__metadata_iterator_init(iterator, chain);
+
+       printf("[S]VP\tnext\n");
+       if(!FLAC__metadata_iterator_next(iterator))
+               return die_("iterator ended early\n");
+
+       printf("S[V]P\tdelete VORBIS_COMMENT, write\n");
+       if(!FLAC__metadata_iterator_delete_block(iterator, /*replace_with_padding=*/false))
+               return die_c_("block delete failed\n", FLAC__metadata_chain_status(chain));
+
+       printf("testing FLAC__metadata_chain_check_if_tempfile_needed()... ");
+
+       if(FLAC__metadata_chain_check_if_tempfile_needed(chain, /*use_padding=*/false))
+               printf("OK: FLAC__metadata_chain_check_if_tempfile_needed() returned true like it should\n");
+       else
+               return die_("FLAC__metadata_chain_check_if_tempfile_needed() returned false but shouldn't have");
+
+       printf("write chain with wrong method FLAC__metadata_chain_write_with_callbacks()\n");
+       {
+               if(FLAC__metadata_chain_write_with_callbacks(chain, /*use_padding=*/false, 0, callbacks))
+                       return die_c_("mismatched write should have failed", FLAC__metadata_chain_status(chain));
+               if(FLAC__metadata_chain_status(chain) != FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL)
+                       return die_c_("expected FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL", FLAC__metadata_chain_status(chain));
+               printf("  OK: FLAC__metadata_chain_write_with_callbacks() returned false,FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL like it should\n");
+       }
+
+       printf("delete iterator\n");
+
+       FLAC__metadata_iterator_delete(iterator);
+
+       printf("delete chain\n");
+
+       FLAC__metadata_chain_delete(chain);
+
+       if(!remove_file_(flacfile_))
+               return false;
+
+       return true;
+}
+
 FLAC__bool test_metadata_file_manipulation()
 {
        printf("\n+++ libFLAC unit test: metadata manipulation\n\n");
@@ -1606,7 +1975,11 @@ FLAC__bool test_metadata_file_manipulation()
        if(!test_level_1_())
                return false;
 
-       if(!test_level_2_())
+       if(!test_level_2_(/*filename_based=*/true)) /* filename-based */
+               return false;
+       if(!test_level_2_(/*filename_based=*/false)) /* callback-based */
+               return false;
+       if(!test_level_2_misc_())
                return false;
 
        return true;