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/*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <cstdint>
#include "l2cap/signal_id.h"
namespace bluetooth {
namespace l2cap {
TEST(L2capSignalIdTest, valid_values) {
int valid = 0;
uint8_t i = 0;
while (++i != 0) {
SignalId signal_id(i);
if (signal_id.IsValid()) {
valid++;
}
}
ASSERT_TRUE(valid == 255);
}
TEST(L2capSignalIdTest, zero_invalid) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
}
TEST(L2capSignalIdTest, pre_increment) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (uint8_t i = 0; i != 0xff; ++i, ++signal_id) {
ASSERT_TRUE(i == signal_id.Value());
}
}
TEST(L2capSignalIdTest, post_increment) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (uint8_t i = 0; i != 0xff; i++, signal_id++) {
ASSERT_TRUE(i == signal_id.Value());
}
}
TEST(L2capSignalIdTest, almost_wrap_up) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (int i = 0; i < 255; i++) {
signal_id++;
}
ASSERT_EQ(0xff, signal_id.Value());
}
TEST(L2capSignalIdTest, wrap_up) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (int i = 0; i < 256; i++) {
signal_id++;
}
ASSERT_EQ(1, signal_id.Value());
}
TEST(L2capSignalIdTest, pre_decrement) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (uint8_t i = 0; i != 0xff; --i, --signal_id) {
ASSERT_TRUE(i == signal_id.Value());
}
}
TEST(L2capSignalIdTest, post_decrement) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (uint8_t i = 0; i != 0xff; i--, signal_id--) {
ASSERT_TRUE(i == signal_id.Value());
}
}
TEST(L2capSignalIdTest, almost_wrap_down) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (int i = 0; i < 255; i++) {
signal_id--;
}
ASSERT_EQ(1, signal_id.Value());
}
TEST(L2capSignalIdTest, wrap_down) {
SignalId signal_id(0);
ASSERT_FALSE(signal_id.IsValid());
for (int i = 0; i < 256; i++) {
signal_id--;
}
ASSERT_EQ(0xff, signal_id.Value());
}
} // namespace l2cap
} // namespace bluetooth