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-rw-r--r--third_party/libwebrtc/p2p/base/stun_request_unittest.cc219
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diff --git a/third_party/libwebrtc/p2p/base/stun_request_unittest.cc b/third_party/libwebrtc/p2p/base/stun_request_unittest.cc
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index 0000000000..6831d9ffa2
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+++ b/third_party/libwebrtc/p2p/base/stun_request_unittest.cc
@@ -0,0 +1,219 @@
+/*
+ * 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 "p2p/base/stun_request.h"
+
+#include <utility>
+#include <vector>
+
+#include "rtc_base/fake_clock.h"
+#include "rtc_base/gunit.h"
+#include "rtc_base/helpers.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/time_utils.h"
+#include "test/gtest.h"
+
+namespace cricket {
+namespace {
+std::unique_ptr<StunMessage> CreateStunMessage(
+ StunMessageType type,
+ const StunMessage* req = nullptr) {
+ std::unique_ptr<StunMessage> msg = std::make_unique<StunMessage>(
+ type, req ? req->transaction_id() : StunMessage::GenerateTransactionId());
+ return msg;
+}
+
+int TotalDelay(int sends) {
+ std::vector<int> delays = {0, 250, 750, 1750, 3750,
+ 7750, 15750, 23750, 31750, 39750};
+ return delays[sends];
+}
+} // namespace
+
+class StunRequestTest : public ::testing::Test {
+ public:
+ StunRequestTest()
+ : manager_(rtc::Thread::Current(),
+ [this](const void* data, size_t size, StunRequest* request) {
+ OnSendPacket(data, size, request);
+ }),
+ request_count_(0),
+ response_(NULL),
+ success_(false),
+ failure_(false),
+ timeout_(false) {}
+
+ void OnSendPacket(const void* data, size_t size, StunRequest* req) {
+ request_count_++;
+ }
+
+ void OnResponse(StunMessage* res) {
+ response_ = res;
+ success_ = true;
+ }
+ void OnErrorResponse(StunMessage* res) {
+ response_ = res;
+ failure_ = true;
+ }
+ void OnTimeout() { timeout_ = true; }
+
+ protected:
+ rtc::AutoThread main_thread_;
+ StunRequestManager manager_;
+ int request_count_;
+ StunMessage* response_;
+ bool success_;
+ bool failure_;
+ bool timeout_;
+};
+
+// Forwards results to the test class.
+class StunRequestThunker : public StunRequest {
+ public:
+ StunRequestThunker(StunRequestManager& manager, StunRequestTest* test)
+ : StunRequest(manager, CreateStunMessage(STUN_BINDING_REQUEST)),
+ test_(test) {}
+
+ std::unique_ptr<StunMessage> CreateResponseMessage(StunMessageType type) {
+ return CreateStunMessage(type, msg());
+ }
+
+ private:
+ virtual void OnResponse(StunMessage* res) { test_->OnResponse(res); }
+ virtual void OnErrorResponse(StunMessage* res) {
+ test_->OnErrorResponse(res);
+ }
+ virtual void OnTimeout() { test_->OnTimeout(); }
+
+ StunRequestTest* test_;
+};
+
+// Test handling of a normal binding response.
+TEST_F(StunRequestTest, TestSuccess) {
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res =
+ request->CreateResponseMessage(STUN_BINDING_RESPONSE);
+ manager_.Send(request);
+ EXPECT_TRUE(manager_.CheckResponse(res.get()));
+
+ EXPECT_TRUE(response_ == res.get());
+ EXPECT_TRUE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+// Test handling of an error binding response.
+TEST_F(StunRequestTest, TestError) {
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res =
+ request->CreateResponseMessage(STUN_BINDING_ERROR_RESPONSE);
+ manager_.Send(request);
+ EXPECT_TRUE(manager_.CheckResponse(res.get()));
+
+ EXPECT_TRUE(response_ == res.get());
+ EXPECT_FALSE(success_);
+ EXPECT_TRUE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+// Test handling of a binding response with the wrong transaction id.
+TEST_F(StunRequestTest, TestUnexpected) {
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res = CreateStunMessage(STUN_BINDING_RESPONSE);
+
+ manager_.Send(request);
+ EXPECT_FALSE(manager_.CheckResponse(res.get()));
+
+ EXPECT_TRUE(response_ == NULL);
+ EXPECT_FALSE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+// Test that requests are sent at the right times.
+TEST_F(StunRequestTest, TestBackoff) {
+ rtc::ScopedFakeClock fake_clock;
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res =
+ request->CreateResponseMessage(STUN_BINDING_RESPONSE);
+
+ int64_t start = rtc::TimeMillis();
+ manager_.Send(request);
+ for (int i = 0; i < 9; ++i) {
+ EXPECT_TRUE_SIMULATED_WAIT(request_count_ != i, STUN_TOTAL_TIMEOUT,
+ fake_clock);
+ int64_t elapsed = rtc::TimeMillis() - start;
+ RTC_DLOG(LS_INFO) << "STUN request #" << (i + 1) << " sent at " << elapsed
+ << " ms";
+ EXPECT_EQ(TotalDelay(i), elapsed);
+ }
+ EXPECT_TRUE(manager_.CheckResponse(res.get()));
+
+ EXPECT_TRUE(response_ == res.get());
+ EXPECT_TRUE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+// Test that we timeout properly if no response is received.
+TEST_F(StunRequestTest, TestTimeout) {
+ rtc::ScopedFakeClock fake_clock;
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res =
+ request->CreateResponseMessage(STUN_BINDING_RESPONSE);
+
+ manager_.Send(request);
+ SIMULATED_WAIT(false, cricket::STUN_TOTAL_TIMEOUT, fake_clock);
+
+ EXPECT_FALSE(manager_.CheckResponse(res.get()));
+ EXPECT_TRUE(response_ == NULL);
+ EXPECT_FALSE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_TRUE(timeout_);
+}
+
+// Regression test for specific crash where we receive a response with the
+// same id as a request that doesn't have an underlying StunMessage yet.
+TEST_F(StunRequestTest, TestNoEmptyRequest) {
+ StunRequestThunker* request = new StunRequestThunker(manager_, this);
+
+ manager_.SendDelayed(request, 100);
+
+ StunMessage dummy_req(0, request->id());
+ std::unique_ptr<StunMessage> res =
+ CreateStunMessage(STUN_BINDING_RESPONSE, &dummy_req);
+
+ EXPECT_TRUE(manager_.CheckResponse(res.get()));
+
+ EXPECT_TRUE(response_ == res.get());
+ EXPECT_TRUE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+// If the response contains an attribute in the "comprehension required" range
+// which is not recognized, the transaction should be considered a failure and
+// the response should be ignored.
+TEST_F(StunRequestTest, TestUnrecognizedComprehensionRequiredAttribute) {
+ auto* request = new StunRequestThunker(manager_, this);
+ std::unique_ptr<StunMessage> res =
+ request->CreateResponseMessage(STUN_BINDING_ERROR_RESPONSE);
+
+ manager_.Send(request);
+ res->AddAttribute(StunAttribute::CreateUInt32(0x7777));
+ EXPECT_FALSE(manager_.CheckResponse(res.get()));
+
+ EXPECT_EQ(nullptr, response_);
+ EXPECT_FALSE(success_);
+ EXPECT_FALSE(failure_);
+ EXPECT_FALSE(timeout_);
+}
+
+} // namespace cricket