henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include "webrtc/base/bind.h" |
| 12 | #include "webrtc/base/gunit.h" |
| 13 | |
| 14 | namespace rtc { |
| 15 | |
| 16 | namespace { |
| 17 | |
| 18 | struct MethodBindTester { |
| 19 | void NullaryVoid() { ++call_count; } |
| 20 | int NullaryInt() { ++call_count; return 1; } |
| 21 | int NullaryConst() const { ++call_count; return 2; } |
| 22 | void UnaryVoid(int dummy) { ++call_count; } |
| 23 | template <class T> T Identity(T value) { ++call_count; return value; } |
| 24 | int UnaryByRef(int& value) const { ++call_count; return ++value; } // NOLINT |
| 25 | int Multiply(int a, int b) const { ++call_count; return a * b; } |
| 26 | mutable int call_count; |
| 27 | }; |
| 28 | |
| 29 | int Return42() { return 42; } |
| 30 | int Negate(int a) { return -a; } |
| 31 | int Multiply(int a, int b) { return a * b; } |
| 32 | |
| 33 | } // namespace |
| 34 | |
| 35 | TEST(BindTest, BindToMethod) { |
| 36 | MethodBindTester object = {0}; |
| 37 | EXPECT_EQ(0, object.call_count); |
| 38 | Bind(&MethodBindTester::NullaryVoid, &object)(); |
| 39 | EXPECT_EQ(1, object.call_count); |
| 40 | EXPECT_EQ(1, Bind(&MethodBindTester::NullaryInt, &object)()); |
| 41 | EXPECT_EQ(2, object.call_count); |
| 42 | EXPECT_EQ(2, Bind(&MethodBindTester::NullaryConst, |
| 43 | static_cast<const MethodBindTester*>(&object))()); |
| 44 | EXPECT_EQ(3, object.call_count); |
| 45 | Bind(&MethodBindTester::UnaryVoid, &object, 5)(); |
| 46 | EXPECT_EQ(4, object.call_count); |
| 47 | EXPECT_EQ(100, Bind(&MethodBindTester::Identity<int>, &object, 100)()); |
| 48 | EXPECT_EQ(5, object.call_count); |
| 49 | const std::string string_value("test string"); |
| 50 | EXPECT_EQ(string_value, Bind(&MethodBindTester::Identity<std::string>, |
| 51 | &object, string_value)()); |
| 52 | EXPECT_EQ(6, object.call_count); |
| 53 | int value = 11; |
| 54 | EXPECT_EQ(12, Bind(&MethodBindTester::UnaryByRef, &object, value)()); |
| 55 | EXPECT_EQ(12, value); |
| 56 | EXPECT_EQ(7, object.call_count); |
| 57 | EXPECT_EQ(56, Bind(&MethodBindTester::Multiply, &object, 7, 8)()); |
| 58 | EXPECT_EQ(8, object.call_count); |
| 59 | } |
| 60 | |
| 61 | TEST(BindTest, BindToFunction) { |
| 62 | EXPECT_EQ(42, Bind(&Return42)()); |
| 63 | EXPECT_EQ(3, Bind(&Negate, -3)()); |
| 64 | EXPECT_EQ(56, Bind(&Multiply, 8, 7)()); |
| 65 | } |
| 66 | |
| 67 | } // namespace rtc |