diff options
Diffstat (limited to 'src/test/util/random.cpp')
-rw-r--r-- | src/test/util/random.cpp | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/test/util/random.cpp b/src/test/util/random.cpp index 47d03055e2..32d785e45d 100644 --- a/src/test/util/random.cpp +++ b/src/test/util/random.cpp @@ -7,17 +7,16 @@ #include <logging.h> #include <random.h> #include <uint256.h> +#include <util/check.h> #include <cstdlib> -#include <string> - -FastRandomContext g_insecure_rand_ctx; +#include <iostream> extern void MakeRandDeterministicDANGEROUS(const uint256& seed) noexcept; -void SeedRandomForTest(SeedRand seedtype) +void SeedRandomStateForTest(SeedRand seedtype) { - static const std::string RANDOM_CTX_SEED{"RANDOM_CTX_SEED"}; + constexpr auto RANDOM_CTX_SEED{"RANDOM_CTX_SEED"}; // Do this once, on the first call, regardless of seedtype, because once // MakeRandDeterministicDANGEROUS is called, the output of GetRandHash is @@ -25,14 +24,19 @@ void SeedRandomForTest(SeedRand seedtype) // process. static const uint256 ctx_seed = []() { // If RANDOM_CTX_SEED is set, use that as seed. - const char* num = std::getenv(RANDOM_CTX_SEED.c_str()); - if (num) return uint256S(num); + if (const char* num{std::getenv(RANDOM_CTX_SEED)}) { + if (auto num_parsed{uint256::FromUserHex(num)}) { + return *num_parsed; + } else { + std::cerr << RANDOM_CTX_SEED << " must consist of up to " << uint256::size() * 2 << " hex digits (\"0x\" prefix allowed), it was set to: '" << num << "'.\n"; + std::abort(); + } + } // Otherwise use a (truly) random value. return GetRandHash(); }(); - const uint256& seed{seedtype == SeedRand::SEED ? ctx_seed : uint256::ZERO}; - LogPrintf("%s: Setting random seed for current tests to %s=%s\n", __func__, RANDOM_CTX_SEED, seed.GetHex()); + const uint256& seed{seedtype == SeedRand::FIXED_SEED ? ctx_seed : uint256::ZERO}; + LogInfo("Setting random seed for current tests to %s=%s\n", RANDOM_CTX_SEED, seed.GetHex()); MakeRandDeterministicDANGEROUS(seed); - g_insecure_rand_ctx.Reseed(GetRandHash()); } |