/*
* Copyright (C) 2017 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 <signal.h>
#include <sys/types.h>
#include <vector>
#include <gtest/gtest.h>
#include "rangeset.h"
TEST(RangeSetTest, Parse_smoke) {
RangeSet rs = RangeSet::Parse("2,1,10");
ASSERT_EQ(static_cast<size_t>(1), rs.size());
ASSERT_EQ((Range{ 1, 10 }), rs[0]);
ASSERT_EQ(static_cast<size_t>(9), rs.blocks());
RangeSet rs2 = RangeSet::Parse("4,15,20,1,10");
ASSERT_EQ(static_cast<size_t>(2), rs2.size());
ASSERT_EQ((Range{ 15, 20 }), rs2[0]);
ASSERT_EQ((Range{ 1, 10 }), rs2[1]);
ASSERT_EQ(static_cast<size_t>(14), rs2.blocks());
// Leading zeros are fine. But android::base::ParseUint() doesn't like trailing zeros like "10 ".
ASSERT_EQ(rs, RangeSet::Parse(" 2, 1, 10"));
ASSERT_EXIT(RangeSet::Parse("2,1,10 "), ::testing::KilledBySignal(SIGABRT), "");
}
TEST(RangeSetTest, Parse_InvalidCases) {
// Insufficient number of tokens.
ASSERT_EXIT(RangeSet::Parse(""), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("2,1"), ::testing::KilledBySignal(SIGABRT), "");
// The first token (i.e. the number of following tokens) is invalid.
ASSERT_EXIT(RangeSet::Parse("a,1,1"), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("3,1,1"), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("-3,1,1"), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("2,1,2,3"), ::testing::KilledBySignal(SIGABRT), "");
// Invalid tokens.
ASSERT_EXIT(RangeSet::Parse("2,1,10a"), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("2,,10"), ::testing::KilledBySignal(SIGABRT), "");
// Empty or negative range.
ASSERT_EXIT(RangeSet::Parse("2,2,2"), ::testing::KilledBySignal(SIGABRT), "");
ASSERT_EXIT(RangeSet::Parse("2,2,1"), ::testing::KilledBySignal(SIGABRT), "");
}
TEST(RangeSetTest, Overlaps) {
RangeSet r1 = RangeSet::Parse("2,1,6");
RangeSet r2 = RangeSet::Parse("2,5,10");
ASSERT_TRUE(r1.Overlaps(r2));
ASSERT_TRUE(r2.Overlaps(r1));
r2 = RangeSet::Parse("2,6,10");
ASSERT_FALSE(r1.Overlaps(r2));
ASSERT_FALSE(r2.Overlaps(r1));
ASSERT_FALSE(RangeSet::Parse("2,3,5").Overlaps(RangeSet::Parse("2,5,7")));
ASSERT_FALSE(RangeSet::Parse("2,5,7").Overlaps(RangeSet::Parse("2,3,5")));
}
TEST(RangeSetTest, GetBlockNumber) {
RangeSet rs = RangeSet::Parse("2,1,10");
ASSERT_EQ(static_cast<size_t>(1), rs.GetBlockNumber(0));
ASSERT_EQ(static_cast<size_t>(6), rs.GetBlockNumber(5));
ASSERT_EQ(static_cast<size_t>(9), rs.GetBlockNumber(8));
// Out of bound.
ASSERT_EXIT(rs.GetBlockNumber(9), ::testing::KilledBySignal(SIGABRT), "");
}
TEST(RangeSetTest, equality) {
ASSERT_EQ(RangeSet::Parse("2,1,6"), RangeSet::Parse("2,1,6"));
ASSERT_NE(RangeSet::Parse("2,1,6"), RangeSet::Parse("2,1,7"));
ASSERT_NE(RangeSet::Parse("2,1,6"), RangeSet::Parse("2,2,7"));
// The orders of Range's matter. "4,1,5,8,10" != "4,8,10,1,5".
ASSERT_NE(RangeSet::Parse("4,1,5,8,10"), RangeSet::Parse("4,8,10,1,5"));
}
TEST(RangeSetTest, iterators) {
RangeSet rs = RangeSet::Parse("4,1,5,8,10");
std::vector<Range> ranges;
for (const auto& range : rs) {
ranges.push_back(range);
}
ASSERT_EQ((std::vector<Range>{ Range{ 1, 5 }, Range{ 8, 10 } }), ranges);
ranges.clear();
// Reverse iterators.
for (auto it = rs.crbegin(); it != rs.crend(); it++) {
ranges.push_back(*it);
}
ASSERT_EQ((std::vector<Range>{ Range{ 8, 10 }, Range{ 1, 5 } }), ranges);
}
TEST(RangeSetTest, tostring) {
ASSERT_EQ("2,1,6", RangeSet::Parse("2,1,6").ToString());
ASSERT_EQ("4,1,5,8,10", RangeSet::Parse("4,1,5,8,10").ToString());
ASSERT_EQ("6,1,3,4,6,15,22", RangeSet::Parse("6,1,3,4,6,15,22").ToString());
}
TEST(SortedRangeSetTest, insertion) {
SortedRangeSet rs({ { 2, 3 }, { 4, 6 }, { 8, 14 } });
rs.Insert({ 1, 2 });
ASSERT_EQ(SortedRangeSet({ { 1, 3 }, { 4, 6 }, { 8, 14 } }), rs);
ASSERT_EQ(static_cast<size_t>(10), rs.blocks());
rs.Insert({ 3, 5 });
ASSERT_EQ(SortedRangeSet({ { 1, 6 }, { 8, 14 } }), rs);
ASSERT_EQ(static_cast<size_t>(11), rs.blocks());
SortedRangeSet r1({ { 20, 22 }, { 15, 18 } });
rs.Insert(r1);
ASSERT_EQ(SortedRangeSet({ { 1, 6 }, { 8, 14 }, { 15, 18 }, { 20, 22 } }), rs);
ASSERT_EQ(static_cast<size_t>(16), rs.blocks());
SortedRangeSet r2({ { 2, 7 }, { 15, 21 }, { 20, 25 } });
rs.Insert(r2);
ASSERT_EQ(SortedRangeSet({ { 1, 7 }, { 8, 14 }, { 15, 25 } }), rs);
ASSERT_EQ(static_cast<size_t>(22), rs.blocks());
}
TEST(SortedRangeSetTest, file_range) {
SortedRangeSet rs;
rs.Insert(4096, 4096);
ASSERT_EQ(SortedRangeSet({ { 1, 2 } }), rs);
// insert block 2-9
rs.Insert(4096 * 3 - 1, 4096 * 7);
ASSERT_EQ(SortedRangeSet({ { 1, 10 } }), rs);
// insert block 15-19
rs.Insert(4096 * 15 + 1, 4096 * 4);
ASSERT_EQ(SortedRangeSet({ { 1, 10 }, { 15, 20 } }), rs);
// rs overlaps block 2-2
ASSERT_TRUE(rs.Overlaps(4096 * 2 - 1, 10));
ASSERT_FALSE(rs.Overlaps(4096 * 10, 4096 * 5));
ASSERT_EQ(static_cast<size_t>(10), rs.GetOffsetInRangeSet(4106));
ASSERT_EQ(static_cast<size_t>(40970), rs.GetOffsetInRangeSet(4096 * 16 + 10));
// block#10 not in range.
ASSERT_EXIT(rs.GetOffsetInRangeSet(40970), ::testing::KilledBySignal(SIGABRT), "");
}
