diff options
Diffstat (limited to 'tests/stdlib/trandom.nim')
| -rw-r--r-- | tests/stdlib/trandom.nim | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/tests/stdlib/trandom.nim b/tests/stdlib/trandom.nim index e47ddad66..39ccca85b 100644 --- a/tests/stdlib/trandom.nim +++ b/tests/stdlib/trandom.nim @@ -3,7 +3,9 @@ discard """ targets: "c js" """ -import std/[random, math, os, stats, sets, tables] +import std/[random, math, stats, sets, tables] +when not defined(js): + import std/os randomize(233) @@ -187,3 +189,62 @@ block: # bug #17467 doAssert x > 1e-4, $(x, i) # This used to fail for each i in 0..<26844, i.e. the 1st produced value # was predictable and < 1e-4, skewing distributions. + +const withUint = false # pending exporting `proc rand[T: uint | uint64](r: var Rand; max: T): T =` + +block: # bug #16360 + var r = initRand() + template test(a) = + let a2 = a + block: + let a3 = r.rand(a2) + doAssert a3 <= a2 + doAssert a3.type is a2.type + block: + let a3 = rand(a2) + doAssert a3 <= a2 + doAssert a3.type is a2.type + when withUint: + test cast[uint](int.high) + test cast[uint](int.high) + 1 + when not defined(js): + # pending bug #16411 + test uint64.high + test uint64.high - 1 + test uint.high - 2 + test uint.high - 1 + test uint.high + test int.high + test int.high - 1 + test int.high - 2 + test 0 + when withUint: + test 0'u + test 0'u64 + +block: # bug #16296 + var r = initRand() + template test(x) = + let a2 = x + let a3 = r.rand(a2) + doAssert a3 <= a2.b + doAssert a3 >= a2.a + doAssert a3.type is a2.a.type + test(-2 .. int.high-1) + test(int.low .. int.high) + test(int.low+1 .. int.high) + test(int.low .. int.high-1) + test(int.low .. 0) + test(int.low .. -1) + test(int.low .. 1) + test(int64.low .. 1'i64) + when not defined(js): + # pending bug #16411 + test(10'u64 .. uint64.high) + +block: # bug #17670 + when not defined(js): + # pending bug #16411 + type UInt48 = range[0'u64..2'u64^48-1] + let x = rand(UInt48) + doAssert x is UInt48 |