#******************************************************************************
# Copyright (c) 2016, College of William & Mary
# All rights reserved.
#
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# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
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#     * Neither the name of the College of William & Mary nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COLLEGE OF WILLIAM & MARY BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# PRIMME: https://github.com/primme/primme
# Contact: Andreas Stathopoulos, a n d r e a s _at_ c s . w m . e d u
#******************************************************************************
# File: tests.R
# 
# Purpose - Test functions provided by the library
# 
#*****************************************************************************

require(PRIMME)

# Test for dense and sparse matrices

As <- list(diag(1:100), diag(as.complex(1:100)));
if (requireNamespace("Matrix", quietly = TRUE))
   As[[3]] <- Matrix::Matrix(diag(1:100), sparse=TRUE);

for (i in 1:length(As)) {
   A = As[[i]];
   d <- eigs_sym(A, 3);
   stopifnot(all.equal(c(100,99,98), d$values, tolerance=1e-7));

   d <- svds(A, 3);
   stopifnot(all.equal(c(100,99,98), d$d, tolerance=1e-7));
}