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#!/usr/bin/env ruby
require("gsl")
require("test/unit")
class VectorTest < Test::Unit::TestCase
def test_vector_get
v = GSL::Vector::Int.indgen(5)
assert_equal(GSL::Vector::Int[3, 1, 2], v.get([3, 1, 2]))
end
def test_vector_addsub
a = GSL::Vector::Int[2, 5, 4]
b = GSL::Vector::Int[10, 30, 20]
c = GSL::Vector::Int[12, 35, 24]
d = GSL::Vector::Int[8, 25, 16]
assert_equal(c, a+b)
assert_equal(d, b-a)
end
def test_vector_collect
v = GSL::Vector::Int.indgen(5)
u = GSL::Vector::Int[0, 1, 4, 9, 16]
w = v.collect { |val| val*val }
assert_equal(u, w)
end
def test_vector_ispos_neg
v = GSL::Vector::Int.indgen(5)
assert_equal(v.ispos, 0)
assert_equal(v.ispos?, false)
assert_equal(v.isneg, 0)
assert_equal(v.isneg?, false)
v += 1
assert_equal(v.ispos, 1)
assert_equal(v.ispos?, true)
assert_equal(v.isneg, 0)
assert_equal(v.isneg?, false)
v -= 100
assert_equal(v.ispos, 0)
assert_equal(v.ispos?, false)
assert_equal(v.isneg, 1)
assert_equal(v.isneg?, true)
end
def test_vector_isnonneg
v = GSL::Vector::Int.indgen(5)
assert_equal(v.isnonneg, 1)
assert_equal(v.isnonneg?, true)
assert_equal(v.isneg, 0)
assert_equal(v.isneg?, false)
v -= 100
assert_equal(v.isnonneg, 0)
assert_equal(v.isnonneg?, false)
assert_equal(v.isneg, 1)
assert_equal(v.isneg?, true)
v += 200
assert_equal(v.isnonneg, 1)
assert_equal(v.isnonneg?, true)
assert_equal(v.ispos, 1)
assert_equal(v.ispos?, true)
end
def test_vector_subvector
v = GSL::Vector::Int.indgen(12)
# args = []
vv = v.subvector
assert_not_equal(v.object_id, vv.object_id)
assert_equal(v.subvector, v)
# args = [Fixnum]
vv = v.subvector(3)
assert_equal([0, 1, 2], vv.to_a)
assert_nothing_raised("subvector(-1)") {v.subvector(-1)}
vv = v.subvector(-1)
assert_equal([11], vv.to_a)
vv = v.subvector(-2)
assert_equal([10, 11], vv.to_a)
assert_raise(RangeError) {v.subvector(-13)}
# args = [Fixnum, Fixnum]
vv = v.subvector(2, 3)
assert_equal([2, 3, 4], vv.to_a)
vv = v.subvector(-4, 3)
assert_equal([8, 9, 10], vv.to_a)
assert_nothing_raised("subvector(-4, -3)") {v.subvector(-4, -3)}
vv = v.subvector(-4, -3)
assert_equal([8, 7, 6], vv.to_a)
assert_raise(GSL::ERROR::EINVAL) {v.subvector(-11, -3)}
# args = [Fixnum, Fixnum, Fixnum]
vv = v.subvector(1, 3, 4)
assert_equal([1, 4, 7, 10], vv.to_a)
# args = [Range]
tests = {
# ( range ) => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
( 1.. 3) => [ 1, 2, 3 ],
( 1... 3) => [ 1, 2 ],
( 3.. 1) => [ 3, 2, 1 ],
( 3... 1) => [ 3, 2 ],
(-7.. 9) => [ 5, 6, 7, 8, 9 ],
(-7... 9) => [ 5, 6, 7, 8 ],
( 4.. -3) => [ 4, 5, 6, 7, 8, 9 ],
( 4...-3) => [ 4, 5, 6, 7, 8 ],
( 2.. -2) => [ 2, 3, 4, 5, 6, 7, 8, 9, 10 ],
( 2...-2) => [ 2, 3, 4, 5, 6, 7, 8, 9 ],
(-2.. 2) => [ 10, 9, 8, 7, 6, 5, 4, 3, 2 ],
(-2... 2) => [ 10, 9, 8, 7, 6, 5, 4, 3 ],
(-3.. -1) => [ 9, 10, 11],
(-3...-1) => [ 9, 10 ],
(-1.. -3) => [ 11, 10, 9],
(-1...-3) => [ 11, 10 ],
# Add more test cases here...
}
tests.each do |r, x|
assert_nothing_raised("subvector(#{r})") {v.subvector(r)}
assert_equal(x, v.subvector(r).to_a, "subvector(#{r})")
end
# args = [Range, Fixnum]
tests = {
# [( range ), s] => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
[( 1.. 6), 2] => [ 1, 3, 5 ],
[( 1... 6), 2] => [ 1, 3, 5 ],
[( 0.. 6), 3] => [0, 3, 6 ],
[( 0... 6), 3] => [0, 3 ],
# Add more test cases here...
}
tests.each do |(r,s), x|
assert_nothing_raised("subvector(#{r},#{s})") {v.subvector(r)}
assert_equal(x, v.subvector(r,s).to_a, "subvector(#{r},#{s})")
end
end
end
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