vol_test_fails.md

Current Status of Testing with HDF5 VOL Tests

This file summarize the result running vol-tests using the current version of log-layout based VOL. The test ran on commit 3eb0a434fcede20673a53b0b1cd845f0a30e104b of vol-tests.

The test ran on Ubuntu 20.04.1 LTS with MPICH 3.3.2 and HDF5 1.13.0. gcc 9.3.0 was used to compile HDF5, log-layout based VOL, and the vol-tests suit.

Number of cases tested	Passed	Failed
96	83	13

Filed tests

The table below lists all failed tests by the current version of log-layout based VOL.

Test program	Category	Operation	Cause	Solution
h5_test_testhdf5	LOW-LEVEL FILE I/O	Test file access permissions	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	LOW-LEVEL FILE I/O	Test opening files in an overlapping manner	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	GENERIC OBJECT FUNCTIONS	Test opening root group from two files works properly	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	GENERIC OBJECT FUNCTIONS	Test opening same group from two files works properly	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	GENERIC OBJECT FUNCTIONS	Test opening same dataset from two files works properly	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	GENERIC OBJECT FUNCTIONS	Test opening same named datatype from two files works properly	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	GENERIC OBJECT FUNCTIONS	Test info for objects in the same file	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	DATASPACES	Test basic H5S code	Logvol accepts dataspace without extent in H5Dwrite/read. It is treated as a NULL request.	Return error if dataspace without extent is detected.
h5_test_testhdf5	DATASPACES	Test Null dataspace H5S code	Logvol does not handle the case of datasets created with NULL space.	Extend internal attribute to represent NULL space.
h5_test_testhdf5	ATTRIBUTES	Test opening attributes by name	Logvol does not maintain object creation order.	Support *_by_idx APIs.
h5_test_testhdf5	ATTRIBUTES	Test creating attributes by name	Logvol does not maintain object creation order.	Support *_by_idx APIs.
h5_test_testhdf5	ATTRIBUTES	Test opening/closing attributes through different file handles	the Log VOL connector allows only one opened file handle at a time.	Implement support for multiple open to the same file.
h5_test_testhdf5	ATTRIBUTES	Test duplicated IDs for dense attribute storage	Logvol does not support locating objects by index	Support *_by_idx APIs.