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ruby-opencv/test/test_cvscalar.rb

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#!/usr/bin/env ruby
# -*- mode: ruby; coding: utf-8-unix -*-
require 'test/unit'
require 'opencv'
require File.expand_path(File.dirname(__FILE__)) + '/test_opencv'
include OpenCV
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# Tests for OpenCV::CvScalar
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class TestCvScalar < TestOpenCV
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def is_same_elems(a, b, delta = 0.01)
4.times { |i|
return false unless (a[i].to_f - b[i].to_f).abs <= delta.to_f
}
true
end
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def test_aref
s = CvScalar.new
4.times { |i| assert_in_delta(0, s[i], 0.01) }
s = CvScalar.new(10, 20, 30, 40)
[10, 20, 30, 40].each_with_index { |x, i|
assert_in_delta(x, s[i], 0.01)
}
end
def test_aset
s = CvScalar.new
[10, 20, 30, 40].each_with_index { |x, i|
s[i] = x
}
[10, 20, 30, 40].each_with_index { |x, i|
assert_in_delta(x, s[i], 0.01)
}
end
def test_sub
s1 = CvScalar.new(10, 20, 30, 40)
s2 = CvScalar.new(2, 4, 6, 8)
[s1.sub(s2), s1 - s2].each { |s|
assert_in_delta(8, s[0], 0.01)
assert_in_delta(16, s[1], 0.01)
assert_in_delta(24, s[2], 0.01)
assert_in_delta(32, s[3], 0.01)
}
end
def test_to_s
assert_equal("<OpenCV::CvScalar:10,20,30,40>", CvScalar.new(10, 20, 30, 40).to_s)
end
def test_to_ary
a = [10, 20, 30, 40]
s = CvScalar.new(*a)
b = s.to_ary
assert_equal(Array, b.class)
a.each_with_index { |x, i|
assert_in_delta(x, b[i], 0.01)
}
end
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def test_cvcolor
assert(is_same_elems(CvColor::Black, CvScalar.new(0x0, 0x0, 0x0, 0)))
assert(is_same_elems(CvColor::Silver, CvScalar.new(0x0c, 0x0c, 0x0c, 0)))
assert(is_same_elems(CvColor::Gray, CvScalar.new(0x80, 0x80, 0x80, 0)))
assert(is_same_elems(CvColor::White, CvScalar.new(0xff, 0xff, 0xff, 0)))
assert(is_same_elems(CvColor::Maroon, CvScalar.new(0x0, 0x0, 0x80, 0)))
assert(is_same_elems(CvColor::Red, CvScalar.new(0x0, 0x0, 0xff, 0)))
assert(is_same_elems(CvColor::Purple, CvScalar.new(0x80, 0x0, 0x80, 0)))
assert(is_same_elems(CvColor::Fuchsia, CvScalar.new(0xff, 0x0, 0xff, 0)))
assert(is_same_elems(CvColor::Green, CvScalar.new(0x0, 0x80, 0x0, 0)))
assert(is_same_elems(CvColor::Lime, CvScalar.new(0x0, 0xff, 0x0, 0)))
assert(is_same_elems(CvColor::Olive, CvScalar.new(0x0, 0x80, 0x80, 0)))
assert(is_same_elems(CvColor::Yellow, CvScalar.new(0x0, 0xff, 0xff, 0)))
assert(is_same_elems(CvColor::Navy, CvScalar.new(0x80, 0x0, 0x0, 0)))
assert(is_same_elems(CvColor::Blue, CvScalar.new(0xff, 0x0, 0x0, 0)))
assert(is_same_elems(CvColor::Teal, CvScalar.new(0x80, 0x80, 0x0, 0)))
assert(is_same_elems(CvColor::Aqua, CvScalar.new(0xff, 0xff, 0x0, 0)))
end
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end