# SuiteSparse/GraphBLAS/GraphBLAS/test

This folder, GraphBLAS/GraphBLAS/test, provides a 100% test for the MATLAB
interface to GraphBLAS.  For a full test of the GraphBLAS library itself,
see GraphBLAS/Test and GraphBLAS/Tcov.

To run this test, first compile the GraphBLAS library by typing 'make' in the
top-level GraphBLAS folder, in your system shell.  That statement will use
cmake to compile GraphBLAS.  Use 'make JOBS=40' to compile in parallel (replace
'40' with the number of cores in your system).  Next, go to the
GraphBLAS/GraphBLAS/@GrB/private folder, and type the following in the MATLAB
command window.

# Usage:

   cd GraphBLAS/GraphBLAS
   help GraphBLAS      % short description of the MATLAB interface to GraphBLAS
   addpath (pwd) ;
   savepath ;          % if this fails, edit your startup.m file instead
   cd @GrB/private
   gbmake ;            % compile the MATLAB interface to GraphBLAS
   cd ../../test       % this folder
   gbtest

NOTE: All lines of all m-files are covered by this test, but the MATLAB
profiler shows that some lines are untested.  All of these 'untested' lines
are end statements that appear after an error ('...') statement, so they are
not reachable.

If the savepath command fails, then add the following line to your startup.m:

    addpath ('/your/path/to/SuiteSparse/GraphBLAS/GraphBLAS')

where "/your/path/to/" should be replaced with the actual path of where
GraphBLAS resides in your file system.

See the tcov subfolder to run the test with statement coverage of the
C mexFunctions and utility routines.

SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2021, All Rights Reserved.
SPDX-License-Identifier: GPL-3.0-or-later