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#!/usr/bin/env ruby
require("gsl")
require("../gsl_test2.rb")
include GSL::Test
include Math
module GSL
module Test
module Sf
TEST_TOL0 = 2.0*GSL::DBL_EPSILON
TEST_TOL1 = 16.0*GSL::DBL_EPSILON
TEST_TOL2 = 256.0*GSL::DBL_EPSILON
TEST_TOL3 = 2048.0*GSL::DBL_EPSILON
TEST_TOL4 = 16384.0*GSL::DBL_EPSILON
TEST_TOL5 = 131072.0*GSL::DBL_EPSILON
TEST_TOL6 = 1048576.0*GSL::DBL_EPSILON
TEST_SQRT_TOL0 = 2.0*GSL::SQRT_DBL_EPSILON
TEST_SNGL = 1.0e-06
TEST_SF_INCONS = 1
TEST_SF_ERRNEG = 2
TEST_SF_TOLBAD = 4
TEST_SF_RETBAD = 8
TEST_FACTOR = 100.0
TEST_SIGMA = 1.5
def test_sf_frac_diff(x1, x2)
if x1.zero? and x2.zero?
return 0.0
elsif x1 <= DBL_MAX and x2 < DBL_MAX and (x1 + x1 != 0.0)
return ((x1 - x2)/(x1 + x2)).abs
else
return 1.0
end
end
def test_sf_check_result(mbuf, r, val, tol)
s = 0
f = 0.0
if isnan?(r.val) or isnan?(val)
s = isnan(r.val) != isnan(val) ? TEST_SF_INCONS : s
elsif isinf?(r.val) or isinf?(val)
s = isinf(r.val) != isinf(val) ? TEST_SF_INCONS : s
else
f = test_sf_frac_diff(val, r.val)
if (val - r.val).abs > 2.0*TEST_SIGMA*r.err
s |= TEST_SF_INCONS
end
if r.err < 0.0
s |= TEST_SF_ERRNEG
end
if f > TEST_FACTOR * tol
s |= TEST_SF_TOLBAD
end
end
if s != 0
message = sprintf(" expected: %20.16g\n", val)
mbuf += message
message = sprintf(" obtained: %20.16g %20.16g %g\n",
r.val, r.err, r.err/(r.val.abs + r.err))
mbuf += message
message = sprintf(" fracdiff: %20.16g\n", f)
mbuf += message
end
if s & TEST_SF_INCONS
mbuf += " value/expected not consistent within reported error\n"
end
if s & TEST_SF_ERRNEG
mbuf += " reported error negative\n"
end
if s & TEST_SF_TOLBAD
mbuf += " value not within tolerance of expected value\n"
end
return s, mbuf
end
def test_sf_check_val(mbuf, rval, val, tol)
s = 0;
f = test_sf_frac_diff(val, rval)
if f > TEST_FACTOR * tol
s |= TEST_SF_TOLBAD
end
if s != 0
buf = sprintf(" expected: %20.16g\n", val)
mbuf += buf
buf = sprintf(" obtained: %20.16g\n", rval)
mbuf += buf
buf = sprintf(" fracdiff: %20.16g\n", f)
mbuf += buf
end
if s & TEST_SF_TOLBAD
mbuf += " value not within tolerance of expected value\n"
end
return s, mbuf
end
def test_sf_check_result_relax(mbuf, r, val, tol)
s = 0;
f = test_sf_frac_diff(val, r.val)
if f > GSL_MAX_DBL(TEST_SNGL, TEST_FACTOR * tol)
s |= TEST_SF_INCONS
end
if r.err < 0.0
s |= TEST_SF_ERRNEG
end
if f > TEST_FACTOR * tol
s |= TEST_SF_TOLBAD
end
if s != 0
buf = sprintf(" expected: %20.16g\n", val)
mbuf += buf
buf = sprintf(" obtained: %20.16g %20.16g %g\n", r.val, r.err, r.err/(r.val.abs + r.err))
mbuf += buf
buf = sprintf(" fracdiff: %20.16g\n", f)
mbuf += buf
end
if s & TEST_SF_INCONS
mbuf += " value/expected not consistent MAX(tol,SINGLE_PREC)\n"
end
if s & TEST_SF_ERRNEG
mbuf += " reported error negative\n"
end
if s & TEST_SF_TOLBAD
mbuf += " value not within tolerance of expected value\n"
end
return s, mbuf
end
def test_sf_check_return(mbuf, val, expected)
if val != expected
buf = sprintf(" unexpected return code: %d\n", val)
mbuf += buf
return TEST_SF_RETBAD, mbuf
else
return 0, mbuf
end
end
def test_sf(r, val, tol, status, expect, desc)
local_s = 0
mbuf = ""
s, mbuf = test_sf_check_result(mbuf, r, val, tol)
local_s |= s
s, mbuf = test_sf_check_return(mbuf, status, expect)
local_s |= s
GSL::Test::test(local_s, desc)
if local_s != 0
print(mbuf)
printf(" %22.18g %22.18g\n", r.val, r.err)
end
return local_s
end
def test_sf_val(val, val_in, tol, desc)
local_s = 0
mbuf = ""
s, mbuf = test_sf_check_val(mbuf, val, val_in, tol)
local_s |= s
GSL::Test::test(local_s, desc)
if local_s != 0
printf("%s", mbuf)
printf(" %22.18g\n", val)
end
return local_s
end
def test_sf_rlx(r, val_in, tol, status, expect_return, desc)
local_s = 0
message_buff = ""
s, message_buff = test_sf_check_result_relax(message_buff, r, val_in, tol)
local_s |= s
s, message_buff = test_sf_check_return(message_buff, status, expect_return)
local_s |= s
GSL::Test::test(local_s, desc)
if local_s != 0
printf("%s", message_buff)
printf(" %22.18g %22.18g\n", r.val, r.err)
end
return local_s
end
def test_sf_2(r1, val1, tol1, r2, val2, tol2, status, expect_return, desc)
int local_s = 0
message_buff = ""
s, message_buff = test_sf_check_result(message_buff, r1, val1, tol1)
local_s |= s
s, message_buff = test_sf_check_result(message_buff, r2, val2, tol2)
local_s |= s
s, message_buff = test_sf_check_return(message_buff, status, expect_return)
local_s |= s
GSL::Test::test(local_s, desc)
if local_s != 0
printf("%s", message_buff)
printf(" %22.18g %22.18g\n", r1.val, r1.err)
printf(" %22.18g %22.18g\n", r2.val, r2.err)
end
return local_s
end
def test_sf_sgn(r, sgn, val_in, tol, expect_sgn, status, expect_return, desc)
local_r
local_s = 0
message_buff = ""
local_r.val = sgn
local_r.err = 0.0
s, message_buff = test_sf_check_result(message_buff, r, val_in, tol)
local_s |= s
s, message_buff = test_sf_check_result(message_buff, local_r, expect_sgn, 0.0)
local_s |= s
s, message_buff = test_sf_check_return(message_buff, status, expect_return)
local_s |= s
GSL::Test::test(local_s, desc)
if local_s != 0
printf("%s", message_buff)
printf(" %22.18g %22.18g\n", r.val, r.err)
end
return local_s
end
def TEST_SF(stat, func, args, val_in, tol, expect_return)
r, = eval("#{func}#{args}")
# p r
# p val_in
status = 0
stat += test_sf(r, val_in, tol, status, expect_return, "#{func}#{args}")
return stat
end
def TEST_SF_2(stat, func, args, val1, tol1, val2, tol2, expect_return)
r, = eval("#{func}#{args}")
status = 0
stat += test_sf_2(r1, val1, tol1, r2, val2, tol2, status,
expect_return, "#{func}#{args}")
return stat
end
def TEST_SF_SGN(stat, func, args, val_in, tol, expect_sgn, expect_return)
r, = eval("#{func}#{args}")
status = 0
stat += test_sf_sgn(r, sgn, val_in, tol, expect_sgn, status,
expect_return, "#{func}#{args}")
return stat
end
end
end
end
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