Chris Manton | 53efad7 | 2019-07-19 13:54:52 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <gtest/gtest.h> |
| 18 | #include <cstdint> |
| 19 | |
| 20 | #include "l2cap/signal_id.h" |
| 21 | |
| 22 | namespace bluetooth { |
| 23 | namespace l2cap { |
| 24 | |
| 25 | TEST(L2capSignalIdTest, valid_values) { |
| 26 | int valid = 0; |
| 27 | uint8_t i = 0; |
| 28 | while (++i != 0) { |
| 29 | SignalId signal_id(i); |
| 30 | if (signal_id.IsValid()) { |
| 31 | valid++; |
| 32 | } |
| 33 | } |
| 34 | ASSERT_TRUE(valid == 255); |
| 35 | } |
| 36 | |
| 37 | TEST(L2capSignalIdTest, zero_invalid) { |
| 38 | SignalId signal_id(0); |
| 39 | ASSERT_FALSE(signal_id.IsValid()); |
| 40 | } |
| 41 | |
| 42 | TEST(L2capSignalIdTest, pre_increment) { |
| 43 | SignalId signal_id(0); |
| 44 | ASSERT_FALSE(signal_id.IsValid()); |
| 45 | |
| 46 | for (uint8_t i = 0; i != 0xff; ++i, ++signal_id) { |
| 47 | ASSERT_TRUE(i == signal_id.Value()); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | TEST(L2capSignalIdTest, post_increment) { |
| 52 | SignalId signal_id(0); |
| 53 | ASSERT_FALSE(signal_id.IsValid()); |
| 54 | |
| 55 | for (uint8_t i = 0; i != 0xff; i++, signal_id++) { |
| 56 | ASSERT_TRUE(i == signal_id.Value()); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | TEST(L2capSignalIdTest, almost_wrap_up) { |
| 61 | SignalId signal_id(0); |
| 62 | ASSERT_FALSE(signal_id.IsValid()); |
| 63 | |
| 64 | for (int i = 0; i < 255; i++) { |
| 65 | signal_id++; |
| 66 | } |
| 67 | ASSERT_EQ(0xff, signal_id.Value()); |
| 68 | } |
| 69 | |
| 70 | TEST(L2capSignalIdTest, wrap_up) { |
| 71 | SignalId signal_id(0); |
| 72 | ASSERT_FALSE(signal_id.IsValid()); |
| 73 | |
| 74 | for (int i = 0; i < 256; i++) { |
| 75 | signal_id++; |
| 76 | } |
| 77 | ASSERT_EQ(1, signal_id.Value()); |
| 78 | } |
| 79 | |
| 80 | TEST(L2capSignalIdTest, pre_decrement) { |
| 81 | SignalId signal_id(0); |
| 82 | ASSERT_FALSE(signal_id.IsValid()); |
| 83 | |
| 84 | for (uint8_t i = 0; i != 0xff; --i, --signal_id) { |
| 85 | ASSERT_TRUE(i == signal_id.Value()); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | TEST(L2capSignalIdTest, post_decrement) { |
| 90 | SignalId signal_id(0); |
| 91 | ASSERT_FALSE(signal_id.IsValid()); |
| 92 | |
| 93 | for (uint8_t i = 0; i != 0xff; i--, signal_id--) { |
| 94 | ASSERT_TRUE(i == signal_id.Value()); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | TEST(L2capSignalIdTest, almost_wrap_down) { |
| 99 | SignalId signal_id(0); |
| 100 | ASSERT_FALSE(signal_id.IsValid()); |
| 101 | |
| 102 | for (int i = 0; i < 255; i++) { |
| 103 | signal_id--; |
| 104 | } |
| 105 | ASSERT_EQ(1, signal_id.Value()); |
| 106 | } |
| 107 | |
| 108 | TEST(L2capSignalIdTest, wrap_down) { |
| 109 | SignalId signal_id(0); |
| 110 | ASSERT_FALSE(signal_id.IsValid()); |
| 111 | |
| 112 | for (int i = 0; i < 256; i++) { |
| 113 | signal_id--; |
| 114 | } |
| 115 | ASSERT_EQ(0xff, signal_id.Value()); |
| 116 | } |
| 117 | |
| 118 | } // namespace l2cap |
| 119 | } // namespace bluetooth |