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https://github.com/nim-lang/Nim.git
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cfb38c2383
* move tests to testament
* minor
* fix random
* disable test random
(cherry picked from commit cbc793b30b)
99 lines
1.9 KiB
Nim
99 lines
1.9 KiB
Nim
import rationals, math
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var
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z = Rational[int](num: 0, den: 1)
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o = initRational(num = 1, den = 1)
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a = initRational(1, 2)
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b = -1 // -2
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m1 = -1 // 1
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tt = 10 // 2
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assert(a == a)
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assert( (a-a) == z)
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assert( (a+b) == o)
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assert( (a/b) == o)
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assert( (a*b) == 1 // 4)
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assert( (3/a) == 6 // 1)
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assert( (a/3) == 1 // 6)
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assert(a*b == 1 // 4)
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assert(tt*z == z)
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assert(10*a == tt)
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assert(a*10 == tt)
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assert(tt/10 == a)
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assert(a-m1 == 3 // 2)
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assert(a+m1 == -1 // 2)
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assert(m1+tt == 16 // 4)
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assert(m1-tt == 6 // -1)
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assert(z < o)
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assert(z <= o)
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assert(z == z)
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assert(cmp(z, o) < 0)
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assert(cmp(o, z) > 0)
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assert(o == o)
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assert(o >= o)
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assert(not(o > o))
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assert(cmp(o, o) == 0)
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assert(cmp(z, z) == 0)
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assert(hash(o) == hash(o))
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assert(a == b)
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assert(a >= b)
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assert(not(b > a))
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assert(cmp(a, b) == 0)
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assert(hash(a) == hash(b))
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var x = 1//3
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x *= 5//1
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assert(x == 5//3)
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x += 2 // 9
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assert(x == 17//9)
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x -= 9//18
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assert(x == 25//18)
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x /= 1//2
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assert(x == 50//18)
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var y = 1//3
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y *= 4
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assert(y == 4//3)
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y += 5
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assert(y == 19//3)
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y -= 2
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assert(y == 13//3)
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y /= 9
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assert(y == 13//27)
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assert toRational(5) == 5//1
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assert abs(toFloat(y) - 0.4814814814814815) < 1.0e-7
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assert toInt(z) == 0
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when sizeof(int) == 8:
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assert toRational(0.98765432) == 2111111029 // 2137499919
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assert toRational(PI) == 817696623 // 260280919
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when sizeof(int) == 4:
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assert toRational(0.98765432) == 80 // 81
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assert toRational(PI) == 355 // 113
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assert toRational(0.1) == 1 // 10
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assert toRational(0.9) == 9 // 10
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assert toRational(0.0) == 0 // 1
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assert toRational(-0.25) == 1 // -4
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assert toRational(3.2) == 16 // 5
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assert toRational(0.33) == 33 // 100
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assert toRational(0.22) == 11 // 50
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assert toRational(10.0) == 10 // 1
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assert (1//1) div (3//10) == 3
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assert (-1//1) div (3//10) == -3
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assert (3//10) mod (1//1) == 3//10
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assert (-3//10) mod (1//1) == -3//10
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assert floorDiv(1//1, 3//10) == 3
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assert floorDiv(-1//1, 3//10) == -4
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assert floorMod(3//10, 1//1) == 3//10
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assert floorMod(-3//10, 1//1) == 7//10
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