Snap for 8564071 from d3dfe74c4025bacd9741d761815a8cb059e49c68 to mainline-os-statsd-releaseaml_sta_331910000aml_sta_331811000aml_sta_331711010aml_sta_331610000aml_sta_331511000aml_sta_331410000aml_sta_331311000aml_sta_331010010aml_sta_330910000android13-mainline-os-statsd-release

Change-Id: I3772a2d2966650d738c9d982430b0eb539b0f677

1 files changed, 5 insertions, 2 deletions

diff --git a/third_party/abseil-cpp/absl/random/log_uniform_int_distribution_test.cc b/third_party/abseil-cpp/absl/random/log_uniform_int_distribution_test.cc
index 5270531d20..5e780d96d3 100644
--- a/third_party/abseil-cpp/absl/random/log_uniform_int_distribution_test.cc
+++ b/third_party/abseil-cpp/absl/random/log_uniform_int_distribution_test.cc
@@ -27,6 +27,7 @@
 #include "absl/base/internal/raw_logging.h"
 #include "absl/random/internal/chi_square.h"
 #include "absl/random/internal/distribution_test_util.h"
+#include "absl/random/internal/pcg_engine.h"
 #include "absl/random/internal/sequence_urbg.h"
 #include "absl/random/random.h"
 #include "absl/strings/str_cat.h"
@@ -121,7 +122,10 @@ class LogUniformIntChiSquaredTest
   // data generated by the log-uniform-int distribution.
   double ChiSquaredTestImpl();
 
-  absl::InsecureBitGen rng_;
+  // We use a fixed bit generator for distribution accuracy tests.  This allows
+  // these tests to be deterministic, while still testing the qualify of the
+  // implementation.
+  absl::random_internal::pcg64_2018_engine rng_{0x2B7E151628AED2A6};
 };
 
 double LogUniformIntChiSquaredTest::ChiSquaredTestImpl() {
@@ -194,7 +198,6 @@ double LogUniformIntChiSquaredTest::ChiSquaredTestImpl() {
 
 TEST_P(LogUniformIntChiSquaredTest, MultiTest) {
   const int kTrials = 5;
-
   int failures = 0;
   for (int i = 0; i < kTrials; i++) {
     double p_value = ChiSquaredTestImpl();