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Migrate to use absl::random

This commit is contained in:
jueminyang 2018-11-06 13:12:05 -08:00 committed by Victor Costan
parent 53a38e5e33
commit 254966c71e
1 changed files with 10 additions and 9 deletions
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19
snappy_unittest.cc
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@ -406,7 +406,7 @@ static void VerifyIOVec(const string& input) {
// ranging from 1 to 10.
char* buf = new char[input.size()];
ACMRandom rnd(input.size());
size_t num = rnd.Next() % 10 + 1;
size_t num = absl::Uniform<uint32_t>(rnd) % 10 + 1;
if (input.size() < num) {
num = input.size();
}
@ -421,7 +421,8 @@ static void VerifyIOVec(const string& input) {
if (rnd.OneIn(5)) {
iov[i].iov_len = 0;
} else {
iov[i].iov_len = rnd.Uniform(input.size() - used_so_far);
iov[i].iov_len =
absl::Uniform<uint32_t>(rnd, 0, input.size() - used_so_far);
}
}
used_so_far += iov[i].iov_len;
@ -667,12 +668,12 @@ TEST(Snappy, MaxBlowup) {
string input;
for (int i = 0; i < 20000; i++) {
ACMRandom rnd(i);
uint32 bytes = static_cast<uint32>(rnd.Next());
uint32 bytes = static_cast<uint32>(absl::Uniform<uint32_t>(rnd));
input.append(reinterpret_cast<char*>(&bytes), sizeof(bytes));
}
for (int i = 19999; i >= 0; i--) {
ACMRandom rnd(i);
uint32 bytes = static_cast<uint32>(rnd.Next());
uint32 bytes = static_cast<uint32>(absl::Uniform<uint32_t>(rnd));
input.append(reinterpret_cast<char*>(&bytes), sizeof(bytes));
}
Verify(input);
@ -688,16 +689,16 @@ TEST(Snappy, RandomData) {
}
string x;
size_t len = rnd.Uniform(4096);
size_t len = absl::Uniform<uint32_t>(rnd, 0, 4096);
if (i < 100) {
len = 65536 + rnd.Uniform(65536);
len = 65536 + absl::Uniform<uint32_t>(rnd, 0, 65536);
}
while (x.size() < len) {
int run_len = 1;
if (rnd.OneIn(10)) {
run_len = rnd.Skewed(8);
}
char c = (i < 100) ? rnd.Uniform(256) : rnd.Skewed(3);
char c = (i < 100) ? absl::Uniform<uint32_t>(rnd, 0, 256) : rnd.Skewed(3);
while (run_len-- > 0 && x.size() < len) {
x += c;
}
@ -1043,8 +1044,8 @@ TEST(Snappy, FindMatchLengthRandom) {
for (int i = 0; i < kNumTrials; i++) {
string s, t;
char a = rnd.Rand8();
char b = rnd.Rand8();
char a = absl::Uniform<uint8_t>(rnd);
char b = absl::Uniform<uint8_t>(rnd);
while (!rnd.OneIn(kTypicalLength)) {
s.push_back(rnd.OneIn(2) ? a : b);
t.push_back(rnd.OneIn(2) ? a : b);