1 /*
2 * Copyright (c) 2021, The OpenThread Authors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the copyright holder nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <gtest/gtest.h>
30
31 #include "common/callback.hpp"
32
TEST(IsNull,NullptrIsNull)33 TEST(IsNull, NullptrIsNull)
34 {
35 otbr::OnceCallback<void(void)> noop = nullptr;
36
37 EXPECT_TRUE(noop.IsNull());
38 }
39
TEST(IsNull,NonNullptrIsNotNull)40 TEST(IsNull, NonNullptrIsNotNull)
41 {
42 otbr::OnceCallback<void(void)> noop = [](void) {};
43
44 EXPECT_FALSE(noop.IsNull());
45 }
46
TEST(IsNull,IsNullAfterInvoking)47 TEST(IsNull, IsNullAfterInvoking)
48 {
49 otbr::OnceCallback<int(int)> square = [](int x) { return x * x; };
50
51 std::move(square)(5);
52
53 EXPECT_TRUE(square.IsNull());
54 }
55
TEST(VerifyInvocation,CallbackResultIsExpected)56 TEST(VerifyInvocation, CallbackResultIsExpected)
57 {
58 otbr::OnceCallback<int(int)> square = [](int x) { return x * x; };
59
60 int ret = std::move(square)(5);
61
62 EXPECT_EQ(ret, 25);
63 }
64