77 lines
2.3 KiB
Lua
77 lines
2.3 KiB
Lua
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local rng = require('plugins.cxxrandom')
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function test.cxxrandom_distributions()
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rng.normal_distribution:new(0,5)
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rng.real_distribution:new(-1,1)
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rng.int_distribution:new(-20,20)
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rng.bool_distribution:new(0.00000000001)
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rng.num_sequence:new(-1000,1000)
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-- no errors, no problem
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end
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--[[
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The below tests pass with their given seeds, if they begin failing
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for a given platform, or all around, new seeds should be found.
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Note: these tests which assert RNG, are mere sanity checks
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to ensure things haven't been severely broken by any changes
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]]
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function test.cxxrandom_seed()
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local nd = rng.normal_distribution:new(0,500000)
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local e1 = rng.MakeNewEngine(1)
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local e2 = rng.MakeNewEngine(1)
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local e3 = rng.MakeNewEngine(2)
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local g1 = rng.crng:new(e1, true, nd)
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local g2 = rng.crng:new(e2, true, nd)
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local g3 = rng.crng:new(e3, true, nd)
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local v1 = g1:next()
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expect.eq(v1, g2:next())
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expect.ne(v1, g3:next())
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end
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function test.cxxrandom_ranges()
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local e1 = rng.MakeNewEngine(1)
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local g1 = rng.crng:new(e1, true, rng.normal_distribution:new(0,1))
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local g2 = rng.crng:new(e1, true, rng.real_distribution:new(-5,5))
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local g3 = rng.crng:new(e1, true, rng.int_distribution:new(-5,5))
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local g4 = rng.crng:new(e1, true, rng.num_sequence:new(-5,5))
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for i = 1, 10 do
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local a = g1:next()
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local b = g2:next()
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local c = g3:next()
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local d = g4:next()
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expect.ge(a, -5)
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expect.ge(b, -5)
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expect.ge(c, -5)
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expect.ge(d, -5)
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expect.le(a, 5)
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expect.le(b, 5)
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expect.le(c, 5)
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expect.le(d, 5)
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end
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local gb = rng.crng:new(e1, true, rng.bool_distribution:new(0.00000000001))
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for i = 1, 10 do
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expect.false_(gb:next())
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end
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end
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function test.cxxrandom_exports()
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local id = rng.GenerateEngine(0)
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rng.NewSeed(id, 2022)
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expect.ge(rng.rollInt(id, 0, 1000), 0)
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expect.ge(rng.rollDouble(id, 0, 1), 0)
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expect.ge(rng.rollNormal(id, 5, 1), 0)
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expect.true_(rng.rollBool(id, 0.9999999999))
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local sid = rng.MakeNumSequence(0,8)
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rng.AddToSequence(sid, 9)
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rng.ShuffleSequence(sid, id)
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for i = 1, 10 do
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local v = rng.NextInSequence(sid)
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expect.ge(v, 0)
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expect.le(v, 9)
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end
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rng.DestroyNumSequence(sid)
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rng.DestroyEngine(id)
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end
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