int test_tailable( mongo *conn ) {
mongo_cursor *cursor;
bson b;
int count;
remove_sample_data( conn );
create_capped_collection( conn );
insert_sample_data( conn, 10000 );
bson_init( &b );
bson_append_start_object( &b, "$query" );
bson_append_finish_object( &b );
bson_append_start_object( &b, "$sort" );
bson_append_int( &b, "$natural", -1 );
bson_append_finish_object( &b );
bson_finish( &b );
cursor = mongo_find( conn, "test.cursors", &b, bson_shared_empty( ), 0, 0, MONGO_TAILABLE );
bson_destroy( &b );
count = 0;
while( mongo_cursor_next( cursor ) == MONGO_OK )
count++;
ASSERT( count == 10000 );
ASSERT( mongo_cursor_next( cursor ) == MONGO_ERROR );
ASSERT( cursor->err == MONGO_CURSOR_PENDING );
insert_sample_data( conn, 10 );
count = 0;
while( mongo_cursor_next( cursor ) == MONGO_OK ) {
count++;
}
ASSERT( count == 10 );
ASSERT( mongo_cursor_next( cursor ) == MONGO_ERROR );
ASSERT( cursor->err == MONGO_CURSOR_PENDING );
mongo_cursor_destroy( cursor );
remove_sample_data( conn );
return 0;
}
int test_multiple_getmore( mongo *conn ) {
mongo_cursor *cursor;
int count;
remove_sample_data( conn );
create_capped_collection( conn );
insert_sample_data( conn, 10000 );
cursor = mongo_find( conn, "test.cursors", bson_shared_empty( ), bson_shared_empty( ), 0, 0, 0 );
count = 0;
while( mongo_cursor_next( cursor ) == MONGO_OK )
count++;
ASSERT( count == 10000 );
ASSERT( mongo_cursor_next( cursor ) == MONGO_ERROR );
ASSERT( cursor->err == MONGO_CURSOR_EXHAUSTED );
mongo_cursor_destroy( cursor );
remove_sample_data( conn );
return 0;
}
/* We can test write concern for update
* and remove by doing operations on a capped collection. */
static void test_update_and_remove( mongo *conn ) {
mongo_write_concern wc[1];
bson *objs[5];
bson query[1], update[1];
int i;
create_capped_collection( conn );
for( i=0; i<5; i++ ) {
objs[i] = bson_alloc();
bson_init( objs[i] );
bson_append_int( objs[i], "n", i );
bson_finish( objs[i] );
}
ASSERT( mongo_insert_batch( conn, "test.wc", (const bson **)objs, 5,
NULL, 0 ) == MONGO_OK );
ASSERT( mongo_count( conn, "test", "wc", bson_shared_empty( ) ) == 5 );
bson_init( query );
bson_append_int( query, "n", 2 );
bson_finish( query );
ASSERT( mongo_find_one( conn, "test.wc", query, bson_shared_empty( ), NULL ) == MONGO_OK );
bson_init( update );
bson_append_start_object( update, "$set" );
bson_append_string( update, "n", "a big long string" );
bson_append_finish_object( update );
bson_finish( update );
/* Update will appear to succeed with no write concern specified, but doesn't. */
ASSERT( mongo_find_one( conn, "test.wc", query, bson_shared_empty( ), NULL ) == MONGO_OK );
ASSERT( mongo_update( conn, "test.wc", query, update, 0, NULL ) == MONGO_OK );
ASSERT( mongo_find_one( conn, "test.wc", query, bson_shared_empty( ), NULL ) == MONGO_OK );
/* Remove will appear to succeed with no write concern specified, but doesn't. */
ASSERT( mongo_remove( conn, "test.wc", query, NULL ) == MONGO_OK );
ASSERT( mongo_find_one( conn, "test.wc", query, bson_shared_empty( ), NULL ) == MONGO_OK );
mongo_write_concern_init( wc );
mongo_write_concern_set_w( wc, 1 );
mongo_write_concern_finish( wc );
mongo_clear_errors( conn );
ASSERT( mongo_update( conn, "test.wc", query, update, 0, wc ) == MONGO_ERROR );
ASSERT( conn->err == MONGO_WRITE_ERROR );
ASSERT_EQUAL_STRINGS( conn->lasterrstr, "failing update: objects in a capped ns cannot grow" );
mongo_clear_errors( conn );
ASSERT( mongo_remove( conn, "test.wc", query, wc ) == MONGO_ERROR );
ASSERT( conn->err == MONGO_WRITE_ERROR );
ASSERT_EQUAL_STRINGS( conn->lasterrstr, "can't remove from a capped collection" );
mongo_write_concern_destroy( wc );
bson_destroy( query );
bson_destroy( update );
for( i=0; i<5; i++ ) {
bson_destroy( objs[i] );
bson_dealloc( objs[i] );
}
}
