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authorColin Cross <ccross@android.com>2022-04-13 01:22:24 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>2022-04-13 01:22:24 +0000
commita9167328fc721c9637f0bcd87525cd23ff5ddac1 (patch)
tree2ce94d7f0804ccb77d1fa9b2a1bca00eecdff1e2 /third_party/abseil-cpp/absl/random/discrete_distribution_test.cc
parent7d5c00bbb9ff7b14de493bfa0ea56d4993f2e187 (diff)
parent2f9c4b2c3bdefdfda50f145f6de999bc76327337 (diff)
downloadwebrtc-a9167328fc721c9637f0bcd87525cd23ff5ddac1.tar.gz
Merge changes I0ab600cd,I1e74c64a am: 798f3afdf6 am: 2f9c4b2c3b
Original change: https://android-review.googlesource.com/c/platform/external/webrtc/+/2062410 Change-Id: I95fedf2237deb626f888e92e7fd42544b2906b61 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
Diffstat (limited to 'third_party/abseil-cpp/absl/random/discrete_distribution_test.cc')
-rw-r--r--third_party/abseil-cpp/absl/random/discrete_distribution_test.cc13
1 files changed, 9 insertions, 4 deletions
diff --git a/third_party/abseil-cpp/absl/random/discrete_distribution_test.cc b/third_party/abseil-cpp/absl/random/discrete_distribution_test.cc
index 7296f0ac22..415b14cc76 100644
--- a/third_party/abseil-cpp/absl/random/discrete_distribution_test.cc
+++ b/third_party/abseil-cpp/absl/random/discrete_distribution_test.cc
@@ -29,6 +29,7 @@
#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"
@@ -98,6 +99,7 @@ TYPED_TEST(DiscreteDistributionTypeTest, Constructor) {
}
TEST(DiscreteDistributionTest, InitDiscreteDistribution) {
+ using testing::_;
using testing::Pair;
{
@@ -110,8 +112,8 @@ TEST(DiscreteDistributionTest, InitDiscreteDistribution) {
// Each bucket is p=1/3, so bucket 0 will send half it's traffic
// to bucket 2, while the rest will retain all of their traffic.
EXPECT_THAT(q, testing::ElementsAre(Pair(0.5, 2), //
- Pair(1.0, 1), //
- Pair(1.0, 2)));
+ Pair(1.0, _), //
+ Pair(1.0, _)));
}
{
@@ -134,7 +136,7 @@ TEST(DiscreteDistributionTest, InitDiscreteDistribution) {
EXPECT_THAT(q, testing::ElementsAre(Pair(b0, 3), //
Pair(b1, 3), //
- Pair(1.0, 2), //
+ Pair(1.0, _), //
Pair(b3, 2), //
Pair(b1, 3)));
}
@@ -156,7 +158,10 @@ TEST(DiscreteDistributionTest, ChiSquaredTest50) {
std::iota(std::begin(weights), std::end(weights), 1);
absl::discrete_distribution<int> dist(std::begin(weights), std::end(weights));
- 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);
std::vector<int32_t> counts(kBuckets, 0);
for (size_t i = 0; i < kTrials; i++) {