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/*
* Copyright (C) 2020 Matthieu Gautier <mgautier@kymeria.fr>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
* NON-INFRINGEMENT. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "../src/dirent_lookup.h"
#include "../src/_dirent.h"
#include <zim/zim.h>
#include "gtest/gtest.h"
#include <vector>
#include <string>
#include <utility>
namespace
{
const std::vector<std::pair<char, std::string>> articleurl = {
{'A', "aa"}, //0
{'A', "aaaa"}, //1
{'A', "aaaaaa"}, //2
{'A', "aaaabb"}, //3
{'A', "aaaacc"}, //4
{'A', "aabbaa"}, //5
{'A', "aabbbb"}, //6
{'A', "aabbcc"}, //7
{'A', "cccccc"}, //8
{'M', "foo"}, //9
{'a', "aa"}, //10
{'a', "bb"}, //11
{'b', "aa"} //12
};
struct GetDirentMock
{
typedef GetDirentMock DirentAccessorType;
typedef zim::entry_index_t index_t;
static const std::string& getDirentKey(const zim::Dirent& d) {
return d.getUrl();
}
zim::entry_index_t getDirentCount() const {
return zim::entry_index_t(articleurl.size());
}
std::shared_ptr<const zim::Dirent> getDirent(zim::entry_index_t idx) const {
auto info = articleurl.at(idx.v);
auto ret = std::make_shared<zim::Dirent>();
ret->setUrl(info.first, info.second);
return ret;
}
};
class NamespaceBoundaryTest : public :: testing::Test
{
protected:
GetDirentMock dirents;
};
TEST_F(NamespaceBoundaryTest, BeginOffset)
{
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'a').v, 10);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'b').v, 12);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'c').v, 13);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'A'-1).v, 0);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'A').v, 0);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'M').v, 9);
ASSERT_EQ(zim::getNamespaceBeginOffset(dirents, 'U').v, 10);
}
TEST_F(NamespaceBoundaryTest, EndOffset)
{
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'a').v, 12);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'b').v, 13);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'c').v, 13);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'A'-1).v, 0);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'A').v, 9);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'M').v, 10);
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, 'U').v, 10);
}
TEST_F(NamespaceBoundaryTest, EndEqualsStartOfNext)
{
for (char ns=32; ns<127; ns++){
std::cout << "ns: " << ns << "|" << (int)ns << std::endl;
ASSERT_EQ(zim::getNamespaceEndOffset(dirents, ns).v, zim::getNamespaceBeginOffset(dirents, ns+1).v);
}
}
class DirentLookupTest : public :: testing::Test
{
protected:
GetDirentMock dirents;
};
typedef zim::DirentLookup<GetDirentMock> DirentLookupType;
// Provide access to protected functionality in order to unit-test it
struct UnprotectedDirentLookup : DirentLookupType
{
template<typename... T> UnprotectedDirentLookup(const T&... args)
: DirentLookupType(args...)
{}
using DirentLookupType::compareWithDirentAt;
};
TEST_F(DirentLookupTest, compareWithDirentAt)
{
UnprotectedDirentLookup direntLookup(&dirents);
// Dirent at index 9 is {'M', "foo"}
EXPECT_LE(direntLookup.compareWithDirentAt('A', "foo", 9), 0);
EXPECT_LE(direntLookup.compareWithDirentAt('M', "boo", 9), 0);
EXPECT_EQ(direntLookup.compareWithDirentAt('M', "foo", 9), 0);
EXPECT_GE(direntLookup.compareWithDirentAt('M', "for", 9), 0);
EXPECT_GE(direntLookup.compareWithDirentAt('N', "foo", 9), 0);
}
#define CHECK_FIND_RESULT(expr, is_exact_match, expected_value) \
{ \
const auto findResult = expr; \
ASSERT_EQ(findResult.first, is_exact_match); \
ASSERT_EQ(findResult.second.v, expected_value); \
}
TEST_F(DirentLookupTest, ExactMatch)
{
zim::DirentLookup<GetDirentMock> direntLookup(&dirents);
zim::FastDirentLookup<GetDirentMock> fast_direntLookup(&dirents, 4);
#define CHECK_EXACT_MATCH(expr, expected_value) \
CHECK_FIND_RESULT(expr, true, expected_value); \
CHECK_FIND_RESULT(fast_##expr, true, expected_value);
CHECK_EXACT_MATCH(direntLookup.find('A', "aa"), 0);
CHECK_EXACT_MATCH(direntLookup.find('a', "aa"), 10);
CHECK_EXACT_MATCH(direntLookup.find('A', "aabbbb"), 6);
CHECK_EXACT_MATCH(direntLookup.find('b', "aa"), 12);
#undef CHECK_EXACT_MATCH
}
TEST_F(DirentLookupTest, NoExactMatch)
{
zim::DirentLookup<GetDirentMock> direntLookup(&dirents);
zim::FastDirentLookup<GetDirentMock> fast_direntLookup(&dirents, 4);
#define CHECK_NOEXACT_MATCH(expr, expected_value) \
CHECK_FIND_RESULT(expr, false, expected_value); \
CHECK_FIND_RESULT(fast_##expr, false, expected_value);
CHECK_NOEXACT_MATCH(direntLookup.find('A', "ABC"), 0);
CHECK_NOEXACT_MATCH(direntLookup.find('U', "aa"), 10); // No U namespace => return 10 (the index of the first item from the next namespace)
CHECK_NOEXACT_MATCH(direntLookup.find('A', "aabb"), 5); // aabb is between aaaacc (4) and aabbaa (5) => 5
CHECK_NOEXACT_MATCH(direntLookup.find('A', "aabbb"), 6); // aabbb is between aabbaa (5) and aabbbb (6) => 6
CHECK_NOEXACT_MATCH(direntLookup.find('A', "aabbbc"), 7); // aabbbc is between aabbbb (6) and aabbcc (7) => 7
CHECK_NOEXACT_MATCH(direntLookup.find('A', "bb"), 8); // bb is between aabbcc (7) and cccccc (8) => 8
CHECK_NOEXACT_MATCH(direntLookup.find('A', "dd"), 9); // dd is after cccccc (8) => 9
CHECK_NOEXACT_MATCH(direntLookup.find('M', "f"), 9); // f is before foo (9) => 9
CHECK_NOEXACT_MATCH(direntLookup.find('M', "bar"), 9); // bar is before foo (9) => 9
CHECK_NOEXACT_MATCH(direntLookup.find('M', "foo1"), 10); // foo1 is after foo (9) => 10
CHECK_NOEXACT_MATCH(direntLookup.find('z', "zz"), 13);
#undef CHECK_NOEXACT_MATCH
}
} // namespace
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