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function test157
%TEST157 test sparsity formats
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
rng ('default') ;
[~, ~, ~, types, ~, ~] = GB_spec_opsall ;
types = types.all ;
for k1 = 1:length(types)
in_type = types {k1} ;
A = GB_spec_random (5, 5, 0.5, 10, in_type) ;
for sparsity_control = 0:15
A.sparsity = sparsity_control ;
C = GB_mex_dump (A, 2) ;
GB_spec_compare (C, A) ;
end
% try a full matrix
A.matrix = 10 * rand (5, 5) ;
A.pattern = true (5, 5) ;
for sparsity_control = 0:15
A.sparsity = sparsity_control ;
C = GB_mex_dump (A, 2) ;
GB_spec_compare (C, A) ;
end
% try a very sparse matrix
A = GB_spec_random (50, 50, 0.002, 10, in_type) ;
for is_hyper = 0:1
A.is_hyper = is_hyper ;
for sparsity_control = 0:15
A.sparsity = sparsity_control ;
C = GB_mex_dump (A, 2) ;
GB_spec_compare (C, A) ;
end
end
end
% A = GrB (rand (40)) ;
% A (1,1) = sparse (0)
fprintf ('test157: all tests passed\n') ;
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