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82 lines
2.2 KiB
82 lines
2.2 KiB
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "BitUtils.h"
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#include <gtest/gtest.h>
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namespace android {
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namespace tests {
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TEST(BitInRange, testInvalidRange) {
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uint8_t arr[2] = { 0xff, 0xff };
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EXPECT_FALSE(testBitInRange(arr, 0, 0));
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EXPECT_FALSE(testBitInRange(arr, 1, 0));
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}
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TEST(BitInRange, testNoBits) {
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uint8_t arr[1];
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arr[0] = 0;
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EXPECT_FALSE(testBitInRange(arr, 0, 8));
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}
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TEST(BitInRange, testOneBit) {
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uint8_t arr[1];
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for (int i = 0; i < 8; ++i) {
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arr[0] = 1 << i;
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EXPECT_TRUE(testBitInRange(arr, 0, 8));
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}
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}
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TEST(BitInRange, testZeroStart) {
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uint8_t arr[1] = { 0x10 };
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for (int i = 0; i < 5; ++i) {
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EXPECT_FALSE(testBitInRange(arr, 0, i));
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}
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for (int i = 5; i <= 8; ++i) {
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EXPECT_TRUE(testBitInRange(arr, 0, i));
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}
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}
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TEST(BitInRange, testByteBoundaryEnd) {
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uint8_t arr[1] = { 0x10 };
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for (int i = 0; i < 5; ++i) {
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EXPECT_TRUE(testBitInRange(arr, i, 8));
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}
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for (int i = 5; i <= 8; ++i) {
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EXPECT_FALSE(testBitInRange(arr, i, 8));
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}
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}
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TEST(BitInRange, testMultiByteArray) {
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// bits set: 11 and 16
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uint8_t arr[3] = { 0x00, 0x08, 0x01 };
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for (int start = 0; start < 24; ++start) {
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for (int end = start + 1; end <= 24; ++end) {
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if (start > 16 || end <= 11 || (start > 11 && end <= 16)) {
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EXPECT_FALSE(testBitInRange(arr, start, end))
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<< "range = (" << start << ", " << end << ")";
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} else {
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EXPECT_TRUE(testBitInRange(arr, start, end))
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<< "range = (" << start << ", " << end << ")";
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}
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}
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}
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}
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} // namespace tests
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} // namespace android
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