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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_WEBRTC_CONNECTION_MATCHERS_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_WEBRTC_CONNECTION_MATCHERS_H_
#include <algorithm>
#include <iterator>
#include <ostream>
#include <vector>
#include "base/strings/strcat.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "third_party/webrtc/api/rtc_error.h"
#include "third_party/webrtc/p2p/base/connection.h"
#include "third_party/webrtc/p2p/base/ice_controller_interface.h"
#include "third_party/webrtc/p2p/base/ice_switch_reason.h"
#include "third_party/webrtc_overrides/p2p/base/ice_switch_proposal.h"
namespace webrtc {
// Pretty prints a connection object for tests.
inline void PrintTo(const Connection* conn, std::ostream* os) {
*os << (conn ? conn->ToString() : "(nullptr)");
}
// Pretty prints an optional connection object for tests.
inline void PrintTo(std::optional<const Connection*> conn, std::ostream* os) {
if (conn.has_value()) {
PrintTo(conn.value(), os);
} else {
*os << "<no connection>";
}
}
// Pretty prints a ping result for tests.
inline void PrintTo(const IceControllerInterface::PingResult& result,
std::ostream* os) {
*os << "PingResult[";
PrintTo(result.connection, os);
*os << ":" << result.recheck_delay_ms << "]";
}
// Pretty prints an ICE switch reason for tests.
inline void PrintTo(const IceSwitchReason reason, std::ostream* os) {
*os << IceSwitchReasonToString(reason);
}
// Pretty prints an ICE recheck event for tests.
inline void PrintTo(const IceRecheckEvent& event, std::ostream* os) {
*os << event.ToString();
}
// Pretty prints a switch result for tests.
inline void PrintTo(const IceControllerInterface::SwitchResult& result,
std::ostream* os) {
*os << "SwitchResult[";
PrintTo(result.connection, os);
*os << ":"
<< (result.recheck_event.has_value() ? result.recheck_event->ToString()
: "<no recheck>");
int ctr = 1;
for (const Connection* conn : result.connections_to_forget_state_on) {
*os << "(" << ctr++ << ":";
PrintTo(conn, os);
*os << ")";
}
*os << "]";
}
// Pretty prints an RTCError for tests.
inline void PrintTo(const RTCErrorType error, std::ostream* os) {
*os << ToString(error);
}
} // namespace webrtc
namespace blink {
namespace {
using ::testing::ExplainMatchResult;
using ::testing::Optional;
using ::testing::PrintToString;
using ::testing::UnorderedPointwise;
} // unnamed namespace
// Tests the equality of a blink::IceConnection and a webrtc::Connection.
MATCHER_P(ConnectionEq,
/* const blink::IceConnection& arg, */
/* const webrtc::Connection* */ conn,
base::StrCat({negation ? "doesn't match " : "matches ",
PrintToString(conn)})) {
return conn != nullptr && arg.id() == conn->id() &&
arg.local_candidate() == conn->local_candidate() &&
arg.remote_candidate() == conn->remote_candidate() &&
arg.connected() == conn->connected() &&
arg.selected() == conn->selected() &&
arg.last_ping_sent() == conn->last_ping_sent() &&
arg.last_ping_received() == conn->last_ping_received() &&
arg.last_data_received() == conn->last_data_received() &&
arg.last_ping_response_received() ==
conn->last_ping_response_received() &&
arg.num_pings_sent() == conn->num_pings_sent();
}
// Tests the equality of two optionals containing a blink::IceConnection and a
// webrtc::Connection each.
MATCHER_P(ConnectionOptionalsEq,
/* const std::optional<blink::IceConnection> arg, */
/* const std::optional<webrtc::Connection*> */ conn,
"") {
if (arg.has_value()) {
return ExplainMatchResult(ConnectionEq(conn.value_or(nullptr)), arg.value(),
result_listener);
}
return !conn.has_value() || conn.value() == nullptr;
}
// Helper to test the equality of a (blink::IceConnection, webrtc::Connection)
// tuple using ConnectionEq for use with container matchers.
MATCHER(CricketBlinkConnectionTupleEq,
/* std::tuple<const blink::IceConnection&, const webrtc::Connection*>
arg, */
"") {
return ExplainMatchResult(ConnectionEq(std::get<1>(arg)), std::get<0>(arg),
result_listener);
}
// Tests the equality of two sequences containing blink::IceConnection and
// webrtc::Connection objects each, ignoring null webrtc::Connections and
// ordering.
MATCHER_P(ConnectionSequenceEq,
/* std::vector<blink::IceConnection> arg, */
/* std::vector<const webrtc::Connection*> */ connections,
"") {
std::vector<const webrtc::Connection*> non_null_connections;
std::ranges::copy_if(connections, std::back_inserter(non_null_connections),
[](auto conn) { return conn != nullptr; });
return ExplainMatchResult(
UnorderedPointwise(CricketBlinkConnectionTupleEq(), non_null_connections),
arg, result_listener);
}
// Tests the equality of a blink::IcePingProposal and a webrtc::PingResult.
MATCHER_P2(PingProposalEq,
/* const blink::IcePingProposal& arg, */
/* const webrtc::IceControllerInterface::PingResult& */ result,
/* bool */ reply_expected,
base::StrCat({negation ? "doesn't match " : "matches ",
PrintToString(result)})) {
if (!ExplainMatchResult(ConnectionOptionalsEq(result.connection),
arg.connection(), result_listener)) {
return false;
}
if (!ExplainMatchResult(Optional(result.recheck_delay_ms),
arg.recheck_delay_ms(), result_listener)) {
return false;
}
return arg.reply_expected() == reply_expected;
}
// Tests the equality of a blink::IceRecheckEvent and a
// webrtc::IceRecheckEvent.
MATCHER_P(RecheckEventEq,
/* const blink::IceRecheckEvent& arg, */
/* const webrtc::IceRecheckEvent& */ event,
base::StrCat({negation ? "doesn't match " : "matches ",
PrintToString(event)})) {
return blink::ConvertFromWebrtcIceSwitchReason(event.reason) == arg.reason &&
event.recheck_delay_ms == arg.recheck_delay_ms;
}
// Tests the equality of a blink::IceSwitchProposal and a webrtc::SwitchResult.
MATCHER_P3(SwitchProposalEq,
/* const blink::IceSwitchProposal& arg, */
/* const webrtc::IceSwitchReason */ reason,
/* const webrtc::IceControllerInterface::SwitchResult& */ result,
/* bool */ reply_expected,
base::StrCat({negation ? "doesn't match " : "matches ",
PrintToString(result)})) {
if (blink::ConvertFromWebrtcIceSwitchReason(reason) != arg.reason()) {
return false;
}
if (!ExplainMatchResult(ConnectionOptionalsEq(result.connection),
arg.connection(), result_listener)) {
return false;
}
if (result.recheck_event.has_value() != arg.recheck_event().has_value()) {
return false;
}
if (result.recheck_event.has_value() &&
!ExplainMatchResult(
Optional(RecheckEventEq(result.recheck_event.value())),
arg.recheck_event(), result_listener)) {
return false;
}
if (!ExplainMatchResult(
ConnectionSequenceEq(result.connections_to_forget_state_on),
arg.connections_to_forget_state_on(), result_listener)) {
return false;
}
return arg.reply_expected() == reply_expected;
}
// Tests the equality of a blink::IceOruneProposal and a collection of
// webrtc::Connections selected for pruning.
MATCHER_P2(PruneProposalEq,
/* const blink::IcePruneProposal& arg, */
/* std::vector<const webrtc::Connection*> */ connections,
/* bool */ reply_expected,
base::StrCat({negation ? "doesn't match " : "matches ",
PrintToString(connections)})) {
if (!ExplainMatchResult(ConnectionSequenceEq(connections),
arg.connections_to_prune(), result_listener)) {
return false;
}
return arg.reply_expected() == reply_expected;
}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_PEERCONNECTION_WEBRTC_CONNECTION_MATCHERS_H_
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