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Unified Diff: webrtc/base/optional_unittest.cc

Issue 2877023002: Move webrtc/{base => rtc_base} (Closed)
Patch Set: update presubmit.py and DEPS include rules Created 3 years, 6 months ago
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Index: webrtc/base/optional_unittest.cc
diff --git a/webrtc/base/optional_unittest.cc b/webrtc/base/optional_unittest.cc
deleted file mode 100644
index 1303552ff434cdf730c8d1b649c617647d4dd42f..0000000000000000000000000000000000000000
--- a/webrtc/base/optional_unittest.cc
+++ /dev/null
@@ -1,831 +0,0 @@
-/*
- * Copyright 2015 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 <memory>
-#include <sstream>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "webrtc/base/gunit.h"
-#include "webrtc/base/optional.h"
-
-namespace rtc {
-
-namespace {
-
-struct MyUnprintableType {
- int value;
-};
-
-struct MyPrintableType {
- int value;
-};
-
-struct MyOstreamPrintableType {
- int value;
-};
-
-void PrintTo(const MyPrintableType& mpt, std::ostream* os) {
- *os << "The value is " << mpt.value;
-}
-
-std::ostream& operator<<(std::ostream& os,
- const MyPrintableType& mpt) {
- os << mpt.value;
- return os;
-}
-
-std::ostream& operator<<(std::ostream& os,
- const MyOstreamPrintableType& mpt) {
- os << mpt.value;
- return os;
-}
-
-// Class whose instances logs various method calls (constructor, destructor,
-// etc.). Each instance has a unique ID (a simple global sequence number) and
-// an origin ID. When a copy is made, the new object gets a fresh ID but copies
-// the origin ID from the original. When a new Logger is created from scratch,
-// it gets a fresh ID, and the origin ID is the same as the ID (default
-// constructor) or given as an argument (explicit constructor).
-class Logger {
- public:
- Logger() : id_(g_next_id++), origin_(id_) { Log("default constructor"); }
- explicit Logger(int origin) : id_(g_next_id++), origin_(origin) {
- Log("explicit constructor");
- }
- Logger(int origin, const Logger& pass_by_ref, Logger pass_by_value)
- : id_(g_next_id++), origin_(origin) {
- Log("multi parameter constructor");
- }
- Logger(const Logger& other) : id_(g_next_id++), origin_(other.origin_) {
- LogFrom("copy constructor", other);
- }
- Logger(Logger&& other) : id_(g_next_id++), origin_(other.origin_) {
- LogFrom("move constructor", other);
- }
- ~Logger() { Log("destructor"); }
- Logger& operator=(const Logger& other) {
- origin_ = other.origin_;
- LogFrom("operator= copy", other);
- return *this;
- }
- Logger& operator=(Logger&& other) {
- origin_ = other.origin_;
- LogFrom("operator= move", other);
- return *this;
- }
- friend void swap(Logger& a, Logger& b) {
- using std::swap;
- swap(a.origin_, b.origin_);
- Log2("swap", a, b);
- }
- friend bool operator==(const Logger& a, const Logger& b) {
- Log2("operator==", a, b);
- return a.origin_ == b.origin_;
- }
- friend bool operator!=(const Logger& a, const Logger& b) {
- Log2("operator!=", a, b);
- return a.origin_ != b.origin_;
- }
- void Foo() { Log("Foo()"); }
- void Foo() const { Log("Foo() const"); }
- static std::unique_ptr<std::vector<std::string>> Setup() {
- std::unique_ptr<std::vector<std::string>> s(new std::vector<std::string>);
- g_log = s.get();
- g_next_id = 0;
- return s;
- }
-
- private:
- int id_;
- int origin_;
- static std::vector<std::string>* g_log;
- static int g_next_id;
- void Log(const char* msg) const {
- std::ostringstream oss;
- oss << id_ << ':' << origin_ << ". " << msg;
- g_log->push_back(oss.str());
- }
- void LogFrom(const char* msg, const Logger& other) const {
- std::ostringstream oss;
- oss << id_ << ':' << origin_ << ". " << msg << " (from " << other.id_ << ':'
- << other.origin_ << ")";
- g_log->push_back(oss.str());
- }
- static void Log2(const char* msg, const Logger& a, const Logger& b) {
- std::ostringstream oss;
- oss << msg << ' ' << a.id_ << ':' << a.origin_ << ", " << b.id_ << ':'
- << b.origin_;
- g_log->push_back(oss.str());
- }
-};
-
-std::vector<std::string>* Logger::g_log = nullptr;
-int Logger::g_next_id = 0;
-
-// Append all the other args to the vector pointed to by the first arg.
-template <typename T>
-void VectorAppend(std::vector<T>* v) {}
-template <typename T, typename... Ts>
-void VectorAppend(std::vector<T>* v, const T& e, Ts... es) {
- v->push_back(e);
- VectorAppend(v, es...);
-}
-
-// Create a vector of strings. Because we're not allowed to use
-// std::initializer_list.
-template <typename... Ts>
-std::vector<std::string> V(Ts... es) {
- std::vector<std::string> strings;
- VectorAppend(&strings, static_cast<std::string>(es)...);
- return strings;
-}
-
-} // namespace
-
-TEST(OptionalTest, TestConstructDefault) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- EXPECT_FALSE(x);
- EXPECT_FALSE(x.has_value());
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestConstructCopyEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- EXPECT_FALSE(x);
- EXPECT_FALSE(x.has_value());
- auto y = x;
- EXPECT_FALSE(y);
- EXPECT_FALSE(y.has_value());
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestConstructCopyFull) {
- auto log = Logger::Setup();
- {
- Logger a;
- Optional<Logger> x(a);
- EXPECT_TRUE(x);
- EXPECT_TRUE(x.has_value());
- log->push_back("---");
- auto y = x;
- EXPECT_TRUE(y);
- EXPECT_TRUE(y.has_value());
- log->push_back("---");
- }
- EXPECT_EQ(V("0:0. default constructor", "1:0. copy constructor (from 0:0)",
- "---", "2:0. copy constructor (from 1:0)", "---",
- "2:0. destructor", "1:0. destructor", "0:0. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestConstructMoveEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- EXPECT_FALSE(x);
- EXPECT_FALSE(x.has_value());
- auto y = std::move(x);
- EXPECT_FALSE(y);
- EXPECT_FALSE(y.has_value());
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestConstructMoveFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- EXPECT_TRUE(x);
- EXPECT_TRUE(x.has_value());
- log->push_back("---");
- auto y = std::move(x);
- EXPECT_TRUE(x);
- EXPECT_TRUE(x.has_value());
- EXPECT_TRUE(y);
- EXPECT_TRUE(y.has_value());
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "2:17. move constructor (from 1:17)", "---",
- "2:17. destructor", "1:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToEmptyFromEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x, y;
- x = y;
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToFullFromEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Optional<Logger> y;
- log->push_back("---");
- x = y;
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "1:17. destructor", "---"),
- *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToEmptyFromFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Optional<Logger> y(Logger(17));
- log->push_back("---");
- x = y;
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "2:17. copy constructor (from 1:17)", "---",
- "1:17. destructor", "2:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToFullFromFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Optional<Logger> y(Logger(42));
- log->push_back("---");
- x = y;
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "2:42. explicit constructor",
- "3:42. move constructor (from 2:42)", "2:42. destructor", "---",
- "1:42. operator= copy (from 3:42)", "---", "3:42. destructor",
- "1:42. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToEmptyFromT) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Logger y(17);
- log->push_back("---");
- x = Optional<Logger>(y);
- log->push_back("---");
- }
- EXPECT_EQ(V("0:17. explicit constructor", "---",
- "1:17. copy constructor (from 0:17)",
- "2:17. move constructor (from 1:17)", "1:17. destructor", "---",
- "0:17. destructor", "2:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestCopyAssignToFullFromT) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Logger y(42);
- log->push_back("---");
- x = Optional<Logger>(y);
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "2:42. explicit constructor", "---",
- "3:42. copy constructor (from 2:42)",
- "1:42. operator= move (from 3:42)", "3:42. destructor", "---",
- "2:42. destructor", "1:42. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToEmptyFromEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x, y;
- x = std::move(y);
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToFullFromEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Optional<Logger> y;
- log->push_back("---");
- x = std::move(y);
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "1:17. destructor", "---"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToEmptyFromFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Optional<Logger> y(Logger(17));
- log->push_back("---");
- x = std::move(y);
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "2:17. move constructor (from 1:17)", "---",
- "1:17. destructor", "2:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToFullFromFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Optional<Logger> y(Logger(42));
- log->push_back("---");
- x = std::move(y);
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "2:42. explicit constructor",
- "3:42. move constructor (from 2:42)", "2:42. destructor", "---",
- "1:42. operator= move (from 3:42)", "---", "3:42. destructor",
- "1:42. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToEmptyFromT) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Logger y(17);
- log->push_back("---");
- x = Optional<Logger>(std::move(y));
- log->push_back("---");
- }
- EXPECT_EQ(V("0:17. explicit constructor", "---",
- "1:17. move constructor (from 0:17)",
- "2:17. move constructor (from 1:17)", "1:17. destructor", "---",
- "0:17. destructor", "2:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveAssignToFullFromT) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Logger y(42);
- log->push_back("---");
- x = Optional<Logger>(std::move(y));
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "2:42. explicit constructor", "---",
- "3:42. move constructor (from 2:42)",
- "1:42. operator= move (from 3:42)", "3:42. destructor", "---",
- "2:42. destructor", "1:42. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestResetEmpty) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- x.reset();
- }
- EXPECT_EQ(V(), *log);
-}
-
-TEST(OptionalTest, TestResetFull) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- log->push_back("---");
- x.reset();
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:17. move constructor (from 0:17)",
- "0:17. destructor", "---", "1:17. destructor", "---"),
- *log);
-}
-
-TEST(OptionalTest, TestEmplaceEmptyWithExplicit) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- log->push_back("---");
- x.emplace(42);
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("---",
- "0:42. explicit constructor",
- "---",
- "0:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceEmptyWithMultipleParameters) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Logger ref(21);
- Logger value(35);
- log->push_back("---");
- x.emplace(42, ref, std::move(value));
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:21. explicit constructor",
- "1:35. explicit constructor",
- "---",
- "2:35. move constructor (from 1:35)",
- "3:42. multi parameter constructor",
- "2:35. destructor",
- "---",
- "1:35. destructor",
- "0:21. destructor",
- "3:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceEmptyWithCopy) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Logger y(42);
- log->push_back("---");
- x.emplace(y);
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:42. explicit constructor",
- "---",
- "1:42. copy constructor (from 0:42)",
- "---",
- "0:42. destructor",
- "1:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceEmptyWithMove) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x;
- Logger y(42);
- log->push_back("---");
- x.emplace(std::move(y));
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:42. explicit constructor",
- "---",
- "1:42. move constructor (from 0:42)",
- "---",
- "0:42. destructor",
- "1:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceFullWithExplicit) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- log->push_back("---");
- x.emplace(42);
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(
- V("0:17. explicit constructor",
- "1:17. move constructor (from 0:17)",
- "0:17. destructor",
- "---",
- "1:17. destructor",
- "2:42. explicit constructor",
- "---",
- "2:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceFullWithMultipleParameters) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Logger ref(21);
- Logger value(35);
- log->push_back("---");
- x.emplace(42, ref, std::move(value));
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:17. explicit constructor",
- "1:17. move constructor (from 0:17)",
- "0:17. destructor",
- "2:21. explicit constructor",
- "3:35. explicit constructor",
- "---",
- "1:17. destructor",
- "4:35. move constructor (from 3:35)",
- "5:42. multi parameter constructor",
- "4:35. destructor",
- "---",
- "3:35. destructor",
- "2:21. destructor",
- "5:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceFullWithCopy) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Logger y(42);
- log->push_back("---");
- x.emplace(y);
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:17. explicit constructor",
- "1:17. move constructor (from 0:17)",
- "0:17. destructor",
- "2:42. explicit constructor",
- "---",
- "1:17. destructor",
- "3:42. copy constructor (from 2:42)",
- "---",
- "2:42. destructor",
- "3:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestEmplaceFullWithMove) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(17));
- Logger y(42);
- log->push_back("---");
- x.emplace(std::move(y));
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:17. explicit constructor",
- "1:17. move constructor (from 0:17)",
- "0:17. destructor",
- "2:42. explicit constructor",
- "---",
- "1:17. destructor",
- "3:42. move constructor (from 2:42)",
- "---",
- "2:42. destructor",
- "3:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestDereference) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(42));
- const auto& y = x;
- log->push_back("---");
- x->Foo();
- y->Foo();
- std::move(x)->Foo();
- std::move(y)->Foo();
- log->push_back("---");
- (*x).Foo();
- (*y).Foo();
- (*std::move(x)).Foo();
- (*std::move(y)).Foo();
- log->push_back("---");
- x.value().Foo();
- y.value().Foo();
- std::move(x).value().Foo();
- std::move(y).value().Foo();
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:42. explicit constructor",
- "1:42. move constructor (from 0:42)",
- "0:42. destructor",
- "---",
- "1:42. Foo()",
- "1:42. Foo() const",
- "1:42. Foo()",
- "1:42. Foo() const",
- "---",
- "1:42. Foo()",
- "1:42. Foo() const",
- "1:42. Foo()",
- "1:42. Foo() const",
- "---",
- "1:42. Foo()",
- "1:42. Foo() const",
- "1:42. Foo()",
- "1:42. Foo() const",
- "---",
- "1:42. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestDereferenceWithDefault) {
- auto log = Logger::Setup();
- {
- const Logger a(17), b(42);
- Optional<Logger> x(a);
- Optional<Logger> y;
- log->push_back("-1-");
- EXPECT_EQ(a, x.value_or(Logger(42)));
- log->push_back("-2-");
- EXPECT_EQ(b, y.value_or(Logger(42)));
- log->push_back("-3-");
- EXPECT_EQ(a, Optional<Logger>(Logger(17)).value_or(b));
- log->push_back("-4-");
- EXPECT_EQ(b, Optional<Logger>().value_or(b));
- log->push_back("-5-");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:42. explicit constructor",
- "2:17. copy constructor (from 0:17)", "-1-",
- "3:42. explicit constructor", "operator== 0:17, 2:17",
- "3:42. destructor", "-2-", "4:42. explicit constructor",
- "operator== 1:42, 4:42", "4:42. destructor", "-3-",
- "5:17. explicit constructor", "6:17. move constructor (from 5:17)",
- "operator== 0:17, 6:17", "6:17. destructor", "5:17. destructor", "-4-",
- "operator== 1:42, 1:42", "-5-", "2:17. destructor", "1:42. destructor",
- "0:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestEquality) {
- auto log = Logger::Setup();
- {
- Logger a(17), b(42);
- Optional<Logger> ma1(a), ma2(a), mb(b), me1, me2;
- log->push_back("---");
- EXPECT_EQ(ma1, ma1);
- EXPECT_EQ(ma1, ma2);
- EXPECT_NE(ma1, mb);
- EXPECT_NE(ma1, me1);
- EXPECT_EQ(me1, me1);
- EXPECT_EQ(me1, me2);
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:17. explicit constructor", "1:42. explicit constructor",
- "2:17. copy constructor (from 0:17)",
- "3:17. copy constructor (from 0:17)",
- "4:42. copy constructor (from 1:42)", "---", "operator== 2:17, 2:17",
- "operator== 2:17, 3:17", "operator!= 2:17, 4:42", "---",
- "4:42. destructor", "3:17. destructor", "2:17. destructor",
- "1:42. destructor", "0:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestEqualityWithObject) {
- auto log = Logger::Setup();
- {
- Logger a(17), b(42);
- Optional<Logger> ma(a), me;
- // Using operator== and operator!= explicetly instead of EXPECT_EQ/EXPECT_NE
- // macros because those operators are under test.
- log->push_back("---");
-
- EXPECT_TRUE(ma == a);
- EXPECT_TRUE(a == ma);
- EXPECT_FALSE(ma == b);
- EXPECT_FALSE(b == ma);
- EXPECT_FALSE(me == a);
- EXPECT_FALSE(a == me);
-
- EXPECT_FALSE(ma != a);
- EXPECT_FALSE(a != ma);
- EXPECT_TRUE(ma != b);
- EXPECT_TRUE(b != ma);
- EXPECT_TRUE(me != a);
- EXPECT_TRUE(a != me);
-
- log->push_back("---");
- }
- // clang-format off
- EXPECT_EQ(V("0:17. explicit constructor",
- "1:42. explicit constructor",
- "2:17. copy constructor (from 0:17)",
- "---",
- "operator== 2:17, 0:17",
- "operator== 0:17, 2:17",
- "operator== 2:17, 1:42",
- "operator== 1:42, 2:17",
- // No operator should be called when comparing to empty.
- "operator!= 2:17, 0:17",
- "operator!= 0:17, 2:17",
- "operator!= 2:17, 1:42",
- "operator!= 1:42, 2:17",
- // No operator should be called when comparing to empty.
- "---",
- "2:17. destructor",
- "1:42. destructor",
- "0:17. destructor"),
- *log);
- // clang-format on
-}
-
-TEST(OptionalTest, TestSwap) {
- auto log = Logger::Setup();
- {
- Logger a(17), b(42);
- Optional<Logger> x1(a), x2(b), y1(a), y2, z1, z2;
- log->push_back("---");
- swap(x1, x2); // Swap full <-> full.
- swap(y1, y2); // Swap full <-> empty.
- swap(z1, z2); // Swap empty <-> empty.
- log->push_back("---");
- }
- EXPECT_EQ(V("0:17. explicit constructor", "1:42. explicit constructor",
- "2:17. copy constructor (from 0:17)",
- "3:42. copy constructor (from 1:42)",
- "4:17. copy constructor (from 0:17)", "---", "swap 2:42, 3:17",
- "5:17. move constructor (from 4:17)", "4:17. destructor", "---",
- "5:17. destructor", "3:17. destructor", "2:42. destructor",
- "1:42. destructor", "0:17. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestMoveValue) {
- auto log = Logger::Setup();
- {
- Optional<Logger> x(Logger(42));
- log->push_back("---");
- Logger moved = x.MoveValue();
- log->push_back("---");
- }
- EXPECT_EQ(
- V("0:42. explicit constructor", "1:42. move constructor (from 0:42)",
- "0:42. destructor", "---", "2:42. move constructor (from 1:42)", "---",
- "2:42. destructor", "1:42. destructor"),
- *log);
-}
-
-TEST(OptionalTest, TestPrintTo) {
- constexpr char kEmptyOptionalMessage[] = "<empty optional>";
- const Optional<MyUnprintableType> empty_unprintable;
- const Optional<MyPrintableType> empty_printable;
- const Optional<MyOstreamPrintableType> empty_ostream_printable;
- EXPECT_EQ(kEmptyOptionalMessage, ::testing::PrintToString(empty_unprintable));
- EXPECT_EQ(kEmptyOptionalMessage, ::testing::PrintToString(empty_printable));
- EXPECT_EQ(kEmptyOptionalMessage,
- ::testing::PrintToString(empty_ostream_printable));
- EXPECT_NE("1", ::testing::PrintToString(Optional<MyUnprintableType>({1})));
- EXPECT_NE("1", ::testing::PrintToString(Optional<MyPrintableType>({1})));
- EXPECT_EQ("The value is 1",
- ::testing::PrintToString(Optional<MyPrintableType>({1})));
- EXPECT_EQ("1",
- ::testing::PrintToString(Optional<MyOstreamPrintableType>({1})));
-}
-
-void UnusedFunctionWorkaround() {
- // These are here to ensure we don't get warnings about ostream and PrintTo
- // for MyPrintableType never getting called.
- const MyPrintableType dont_warn{17};
- const MyOstreamPrintableType dont_warn2{18};
- std::stringstream sstr;
- sstr << dont_warn;
- PrintTo(dont_warn, &sstr);
- sstr << dont_warn2;
-}
-
-} // namespace rtc
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