Index: webrtc/base/sigslottester.h.pump |
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-/* |
- * Copyright 2014 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. |
- */ |
- |
-#ifndef WEBRTC_BASE_SIGSLOTTESTER_H_ |
-#define WEBRTC_BASE_SIGSLOTTESTER_H_ |
- |
-// To generate sigslottester.h from sigslottester.h.pump, execute: |
-// /home/build/google3/third_party/gtest/scripts/pump.py sigslottester.h.pump |
- |
- |
-// SigslotTester(s) are utility classes to check if signals owned by an |
-// object are being invoked at the right time and with the right arguments. |
-// They are meant to be used in tests. Tests must provide "capture" pointers |
-// (i.e. address of variables) where the arguments from the signal callback |
-// can be stored. |
-// |
-// Example: |
-// /* Some signal */ |
-// sigslot::signal1<const std::string&> foo; |
-// |
-// /* We want to monitor foo in some test. Note how signal argument is |
-// const std::string&, but capture-type is std::string. Capture type |
-// must be type that can be assigned to. */ |
-// std::string capture; |
-// SigslotTester1<const std::string&, std::string> slot(&foo, &capture); |
-// foo.emit("hello"); |
-// EXPECT_EQ(1, slot.callback_count()); |
-// EXPECT_EQ("hello", capture); |
-// /* See unit-tests for more examples */ |
- |
-#include "webrtc/base/constructormagic.h" |
-#include "webrtc/base/sigslot.h" |
- |
-namespace rtc { |
- |
-// Base version for testing signals that passes no arguments. |
-class SigslotTester0 : public sigslot::has_slots<> { |
- public: |
- explicit SigslotTester0(sigslot::signal0<>* signal) : callback_count_(0) { |
- signal->connect(this, &SigslotTester0::OnSignalCallback); |
- } |
- |
- int callback_count() const { return callback_count_; } |
- |
- private: |
- void OnSignalCallback() { callback_count_++; } |
- int callback_count_; |
- |
- RTC_DISALLOW_COPY_AND_ASSIGN(SigslotTester0); |
-}; |
- |
-// Versions below are for testing signals that pass arguments. For all the |
-// templates below: |
-// - A1-A5 is the type of the argument i in the callback. Signals may and often |
-// do use const-references here for efficiency. |
-// - C1-C5 is the type of the variable to capture argument i. These should be |
-// non-const value types suitable for use as lvalues. |
- |
-$var n = 5 |
-$range i 1..n |
-$for i [[ |
-$range j 1..i |
- |
-template <$for j , [[class A$j]], $for j , [[class C$j]]> |
-class SigslotTester$i : public sigslot::has_slots<> { |
- public: |
- SigslotTester$i(sigslot::signal$i<$for j , [[A$j]]>* signal, |
- $for j , [[C$j* capture$j]]) |
- : callback_count_(0), |
- $for j , [[capture$j[[]]_(capture$j)]] { |
- signal->connect(this, &SigslotTester$i::OnSignalCallback); |
- } |
- |
- int callback_count() const { return callback_count_; } |
- |
- private: |
- void OnSignalCallback($for j , [[A$j arg$j]]) { |
- callback_count_++;$for j [[ |
- |
- *capture$j[[]]_ = arg$j;]] |
- |
- } |
- |
- int callback_count_;$for j [[ |
- |
- C$j* capture$j[[]]_;]] |
- |
- |
- RTC_DISALLOW_COPY_AND_ASSIGN(SigslotTester$i); |
-}; |
- |
-]] |
-} // namespace rtc |
- |
-#endif // WEBRTC_BASE_SIGSLOTTESTER_H_ |