1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
# frozen_string_literal: true
require "color"
require "minitest_helper"
module TestColor
class TestColor < Minitest::Test
def setup
@subject = Object.new.extend(Color)
end
# def test_equivalent
# assert Color.equivalent?(Color::RGB::Red, Color::HSL.from_values(0, 100, 50))
# refute Color.equivalent?(Color::RGB::Red, nil)
# refute Color.equivalent?(nil, Color::RGB::Red)
# end
def test_normalize
normalize = @subject.method(:normalize)
(1..10).each do |i|
assert_equal(0.0, normalize.call(-7 * i))
assert_equal(0.0, normalize.call(-7 / i))
assert_equal(0.0, normalize.call(0 - i))
assert_equal(1.0, normalize.call(255 + i))
assert_equal(1.0, normalize.call(256 * i))
assert_equal(1.0, normalize.call(65536 / i))
end
(0..255).each do |i|
assert_in_delta(i / 255.0, normalize.call(i / 255.0), 1e-2)
end
end
def test_normalize_byte
normalize_byte = @subject.method(:normalize_byte)
assert_equal(0, normalize_byte.call(-1))
assert_equal(0, normalize_byte.call(0))
assert_equal(127, normalize_byte.call(127))
assert_equal(172, normalize_byte.call(172))
assert_equal(255, normalize_byte.call(255))
assert_equal(255, normalize_byte.call(256))
end
def test_normalize_word
normalize_word = @subject.method(:normalize_word)
assert_equal(0, normalize_word.call(-1))
assert_equal(0, normalize_word.call(0))
assert_equal(127, normalize_word.call(127))
assert_equal(172, normalize_word.call(172))
assert_equal(255, normalize_word.call(255))
assert_equal(256, normalize_word.call(256))
assert_equal(65535, normalize_word.call(65535))
assert_equal(65535, normalize_word.call(66536))
end
def test_normalize_range
normalize_to_range = @subject.method(:normalize_to_range)
assert_equal(-100, normalize_to_range.call(-101, -100..100))
assert_equal(-100, normalize_to_range.call(-100.5, -100..100))
assert_equal(-100, normalize_to_range.call(-100, -100..100))
assert_equal(-100, normalize_to_range.call(-100.0, -100..100))
assert_equal(-99.5, normalize_to_range.call(-99.5, -100..100))
assert_equal(-50, normalize_to_range.call(-50, -100..100))
assert_equal(-50.5, normalize_to_range.call(-50.5, -100..100))
assert_equal(0, normalize_to_range.call(0, -100..100))
assert_equal(50, normalize_to_range.call(50, -100..100))
assert_equal(50.5, normalize_to_range.call(50.5, -100..100))
assert_equal(99, normalize_to_range.call(99, -100..100))
assert_equal(99.5, normalize_to_range.call(99.5, -100..100))
assert_equal(100, normalize_to_range.call(100, -100..100))
assert_equal(100, normalize_to_range.call(100.0, -100..100))
assert_equal(100, normalize_to_range.call(100.5, -100..100))
assert_equal(100, normalize_to_range.call(101, -100..100))
end
end
end
|
