9cf037b831
R=mallinath@webrtc.org Review URL: https://webrtc-codereview.appspot.com/8139004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5502 4adac7df-926f-26a2-2b94-8c16560cd09d
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/*
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* libjingle
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* Copyright 2004--2011, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "talk/base/bind.h"
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#include "talk/base/callback.h"
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#include "talk/base/gunit.h"
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namespace talk_base {
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namespace {
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void f() {}
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int g() { return 42; }
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int h(int x) { return x * x; }
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void i(int& x) { x *= x; } // NOLINT: Testing refs
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struct BindTester {
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int a() { return 24; }
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int b(int x) const { return x * x; }
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};
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} // namespace
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TEST(CallbackTest, VoidReturn) {
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Callback0<void> cb;
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EXPECT_TRUE(cb.empty());
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cb(); // Executing an empty callback should not crash.
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cb = Callback0<void>(&f);
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EXPECT_FALSE(cb.empty());
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cb();
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}
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TEST(CallbackTest, IntReturn) {
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Callback0<int> cb;
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EXPECT_TRUE(cb.empty());
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cb = Callback0<int>(&g);
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EXPECT_FALSE(cb.empty());
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EXPECT_EQ(42, cb());
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EXPECT_EQ(42, cb());
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}
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TEST(CallbackTest, OneParam) {
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Callback1<int, int> cb1(&h);
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EXPECT_FALSE(cb1.empty());
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EXPECT_EQ(9, cb1(-3));
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EXPECT_EQ(100, cb1(10));
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// Try clearing a callback.
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cb1 = Callback1<int, int>();
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EXPECT_TRUE(cb1.empty());
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// Try a callback with a ref parameter.
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Callback1<void, int&> cb2(&i);
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int x = 3;
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cb2(x);
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EXPECT_EQ(9, x);
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cb2(x);
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EXPECT_EQ(81, x);
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}
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TEST(CallbackTest, WithBind) {
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BindTester t;
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Callback0<int> cb1 = Bind(&BindTester::a, &t);
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EXPECT_EQ(24, cb1());
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EXPECT_EQ(24, cb1());
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cb1 = Bind(&BindTester::b, &t, 10);
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EXPECT_EQ(100, cb1());
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EXPECT_EQ(100, cb1());
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cb1 = Bind(&BindTester::b, &t, 5);
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EXPECT_EQ(25, cb1());
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EXPECT_EQ(25, cb1());
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}
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} // namespace talk_base
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