Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 171 insertions, 0 deletions

diff --git a/third_party/libwebrtc/rtc_base/helpers_unittest.cc b/third_party/libwebrtc/rtc_base/helpers_unittest.cc
new file mode 100644
index 0000000000..015b4d0a7c
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/helpers_unittest.cc
@@ -0,0 +1,171 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_base/helpers.h"
+
+#include <string.h>
+
+#include <cstring>
+#include <string>
+
+#include "rtc_base/buffer.h"
+#include "test/gmock.h"
+#include "test/gtest.h"
+
+namespace rtc {
+namespace {
+
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::Invoke;
+using ::testing::IsEmpty;
+using ::testing::Not;
+using ::testing::Return;
+using ::testing::WithArg;
+using ::testing::WithArgs;
+
+TEST(RandomTest, TestCreateRandomId) {
+  CreateRandomId();
+}
+
+TEST(RandomTest, TestCreateRandomDouble) {
+  for (int i = 0; i < 100; ++i) {
+    double r = CreateRandomDouble();
+    EXPECT_GE(r, 0.0);
+    EXPECT_LT(r, 1.0);
+  }
+}
+
+TEST(RandomTest, TestCreateNonZeroRandomId) {
+  EXPECT_NE(0U, CreateRandomNonZeroId());
+}
+
+TEST(RandomTest, TestCreateRandomString) {
+  std::string random = CreateRandomString(256);
+  EXPECT_EQ(256U, random.size());
+  std::string random2;
+  EXPECT_TRUE(CreateRandomString(256, &random2));
+  EXPECT_NE(random, random2);
+  EXPECT_EQ(256U, random2.size());
+}
+
+TEST(RandomTest, TestCreateRandomData) {
+  static size_t kRandomDataLength = 32;
+  std::string random1;
+  std::string random2;
+  EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random1));
+  EXPECT_EQ(kRandomDataLength, random1.size());
+  EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random2));
+  EXPECT_EQ(kRandomDataLength, random2.size());
+  EXPECT_NE(0, memcmp(random1.data(), random2.data(), kRandomDataLength));
+}
+
+TEST(RandomTest, TestCreateRandomStringEvenlyDivideTable) {
+  static std::string kUnbiasedTable("01234567");
+  std::string random;
+  EXPECT_TRUE(CreateRandomString(256, kUnbiasedTable, &random));
+  EXPECT_EQ(256U, random.size());
+
+  static std::string kBiasedTable("0123456789");
+  EXPECT_FALSE(CreateRandomString(256, kBiasedTable, &random));
+  EXPECT_EQ(0U, random.size());
+}
+
+TEST(RandomTest, TestCreateRandomUuid) {
+  std::string random = CreateRandomUuid();
+  EXPECT_EQ(36U, random.size());
+}
+
+TEST(RandomTest, TestCreateRandomForTest) {
+  // Make sure we get the output we expect.
+  SetRandomTestMode(true);
+  EXPECT_EQ(2154761789U, CreateRandomId());
+  EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
+  EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
+  static size_t kRandomDataLength = 32;
+  std::string random;
+  EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random));
+  EXPECT_EQ(kRandomDataLength, random.size());
+  Buffer expected(
+      "\xbd\x52\x2a\x4b\x97\x93\x2f\x1c"
+      "\xc4\x72\xab\xa2\x88\x68\x3e\xcc"
+      "\xa3\x8d\xaf\x13\x3b\xbc\x83\xbb"
+      "\x16\xf1\xcf\x56\x0c\xf5\x4a\x8b",
+      kRandomDataLength);
+  EXPECT_EQ(0, memcmp(expected.data(), random.data(), kRandomDataLength));
+
+  // Reset and make sure we get the same output.
+  SetRandomTestMode(true);
+  EXPECT_EQ(2154761789U, CreateRandomId());
+  EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
+  EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
+  EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random));
+  EXPECT_EQ(kRandomDataLength, random.size());
+  EXPECT_EQ(0, memcmp(expected.data(), random.data(), kRandomDataLength));
+
+  // Test different character sets.
+  SetRandomTestMode(true);
+  std::string str;
+  EXPECT_TRUE(CreateRandomString(16, "a", &str));
+  EXPECT_EQ("aaaaaaaaaaaaaaaa", str);
+  EXPECT_TRUE(CreateRandomString(16, "abcd", &str));
+  EXPECT_EQ("dbaaabdaccbcabbd", str);
+
+  // Turn off test mode for other tests.
+  SetRandomTestMode(false);
+}
+
+class MockRandomGenerator : public RandomGenerator {
+ public:
+  MOCK_METHOD(void, Die, ());
+  ~MockRandomGenerator() override { Die(); }
+
+  MOCK_METHOD(bool, Init, (const void* seed, size_t len), (override));
+  MOCK_METHOD(bool, Generate, (void* buf, size_t len), (override));
+};
+
+TEST(RandomTest, TestSetRandomGenerator) {
+  std::unique_ptr<MockRandomGenerator> will_move =
+      std::make_unique<MockRandomGenerator>();
+  MockRandomGenerator* generator = will_move.get();
+  SetRandomGenerator(std::move(will_move));
+
+  EXPECT_CALL(*generator, Init(_, sizeof(int))).WillOnce(Return(true));
+  EXPECT_TRUE(InitRandom(5));
+
+  std::string seed = "seed";
+  EXPECT_CALL(*generator, Init(seed.data(), seed.size()))
+      .WillOnce(Return(true));
+  EXPECT_TRUE(InitRandom(seed.data(), seed.size()));
+
+  uint32_t id = 4658;
+  EXPECT_CALL(*generator, Generate(_, sizeof(uint32_t)))
+      .WillOnce(DoAll(WithArg<0>(Invoke([&id](void* p) {
+                        std::memcpy(p, &id, sizeof(uint32_t));
+                      })),
+                      Return(true)));
+  EXPECT_EQ(CreateRandomId(), id);
+
+  EXPECT_CALL(*generator, Generate)
+      .WillOnce(DoAll(
+          WithArgs<0, 1>([](void* p, size_t len) { std::memset(p, 0, len); }),
+          Return(true)));
+  EXPECT_THAT(CreateRandomUuid(), Not(IsEmpty()));
+
+  // Set the default random generator, and expect that mock generator is
+  // not used beyond this point.
+  EXPECT_CALL(*generator, Die);
+  EXPECT_CALL(*generator, Generate).Times(0);
+  SetDefaultRandomGenerator();
+  EXPECT_THAT(CreateRandomUuid(), Not(IsEmpty()));
+}
+
+}  // namespace
+}  // namespace rtc