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81 lines
2.2 KiB
81 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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