Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 338 insertions, 0 deletions

diff --git a/o3tl/qa/test-lru_map.cxx b/o3tl/qa/test-lru_map.cxx
new file mode 100644
index 000000000..c99a803b3
--- /dev/null
+++ b/o3tl/qa/test-lru_map.cxx
@@ -0,0 +1,338 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <cppunit/TestAssert.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <o3tl/lru_map.hxx>
+
+#include <o3tl/hash_combine.hxx>
+
+using namespace ::o3tl;
+
+class lru_map_test : public CppUnit::TestFixture
+{
+public:
+    void testBaseUsage();
+    void testReplaceKey();
+    void testReplaceValue();
+    void testLruRemoval();
+    void testCustomHash();
+    void testRemoveIf();
+    void testChangeMaxSize();
+    void testCustomItemSize();
+
+    CPPUNIT_TEST_SUITE(lru_map_test);
+    CPPUNIT_TEST(testBaseUsage);
+    CPPUNIT_TEST(testReplaceKey);
+    CPPUNIT_TEST(testReplaceValue);
+    CPPUNIT_TEST(testLruRemoval);
+    CPPUNIT_TEST(testCustomHash);
+    CPPUNIT_TEST(testRemoveIf);
+    CPPUNIT_TEST(testChangeMaxSize);
+    CPPUNIT_TEST(testCustomItemSize);
+    CPPUNIT_TEST_SUITE_END();
+};
+
+void lru_map_test::testBaseUsage()
+{
+    o3tl::lru_map<int, int> lru(10);
+    lru.insert(std::make_pair<int, int>(1, 1));
+
+    std::pair<int, int> pair;
+    for (int i = 2; i < 7; i++)
+    {
+        pair.first = pair.second = i;
+        lru.insert(pair);
+    }
+
+    CPPUNIT_ASSERT_EQUAL(size_t(6), lru.size());
+
+    o3tl::lru_map<int, int>::const_iterator it;
+
+    it = lru.find(2);
+    CPPUNIT_ASSERT(it != lru.end());
+    CPPUNIT_ASSERT_EQUAL(2, it->second);
+
+    it = lru.find(5);
+    CPPUNIT_ASSERT(it != lru.end());
+    CPPUNIT_ASSERT_EQUAL(5, it->second);
+
+    it = lru.find(0);
+    CPPUNIT_ASSERT(bool(it == lru.end()));
+}
+
+void lru_map_test::testReplaceValue()
+{
+    o3tl::lru_map<int, int> lru(2);
+    // check if map is empty
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+
+    // check if inserting entry with same key replaces the value
+
+    // inserting new entry
+    lru.insert(std::make_pair<int, int>(1, 2));
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+    CPPUNIT_ASSERT_EQUAL(2, lru.find(1)->second);
+
+    // inserting new entry with key that already exists
+    lru.insert(std::make_pair<int, int>(1, 4));
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+    CPPUNIT_ASSERT_EQUAL(4, lru.find(1)->second);
+
+    // inserting new entry
+    lru.insert(std::make_pair<int, int>(2, 200));
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT_EQUAL(4, lru.find(1)->second);
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+
+    // check if insert with same key, moves the entry back of the lru queue
+
+    // inserting new entry with key that already exists
+    lru.insert(std::make_pair<int, int>(1, 6));
+    // inserting new entry, lru removed
+    lru.insert(std::make_pair<int, int>(3, 300));
+
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT_EQUAL(6, lru.find(1)->second);
+    CPPUNIT_ASSERT_EQUAL(300, lru.find(3)->second);
+}
+
+void lru_map_test::testReplaceKey()
+{
+    o3tl::lru_map<int, int> lru(2);
+
+    // inserting new entry
+    lru.insert(std::make_pair<int, int>(1, 100));
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+    CPPUNIT_ASSERT_EQUAL(100, lru.find(1)->second);
+    CPPUNIT_ASSERT(bool(lru.find(2) == lru.end()));
+    CPPUNIT_ASSERT(bool(lru.find(3) == lru.end()));
+
+    // inserting new entry
+    lru.insert(std::make_pair<int, int>(2, 200));
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT_EQUAL(100, lru.find(1)->second);
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+    CPPUNIT_ASSERT(bool(lru.find(3) == lru.end()));
+
+    // inserting new entry, lru entry is removed
+    lru.insert(std::make_pair<int, int>(3, 300));
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT(bool(lru.find(1) == lru.end()));
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+    CPPUNIT_ASSERT_EQUAL(300, lru.find(3)->second);
+
+    // inserting new entry, lru entry is removed
+    std::pair<int, int> pair(4, 400);
+    lru.insert(pair);
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT(bool(lru.find(1) == lru.end()));
+    CPPUNIT_ASSERT(bool(lru.find(2) == lru.end()));
+    CPPUNIT_ASSERT_EQUAL(300, lru.find(3)->second);
+    CPPUNIT_ASSERT_EQUAL(400, lru.find(4)->second);
+}
+
+void lru_map_test::testLruRemoval()
+{
+    o3tl::lru_map<int, int> lru(5);
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+
+    // fill up...
+    lru.insert(std::make_pair<int, int>(1, 100));
+    lru.insert(std::make_pair<int, int>(2, 200));
+    lru.insert(std::make_pair<int, int>(3, 300));
+    lru.insert(std::make_pair<int, int>(4, 400));
+    lru.insert(std::make_pair<int, int>(5, 500));
+    CPPUNIT_ASSERT_EQUAL(size_t(5), lru.size());
+    CPPUNIT_ASSERT_EQUAL(100, lru.find(1)->second);
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+    CPPUNIT_ASSERT_EQUAL(300, lru.find(3)->second);
+    CPPUNIT_ASSERT_EQUAL(400, lru.find(4)->second);
+    CPPUNIT_ASSERT_EQUAL(500, lru.find(5)->second);
+
+    // add one more entry - lru entry should be removed
+    lru.insert(std::make_pair<int, int>(6, 600));
+
+    CPPUNIT_ASSERT_EQUAL(size_t(5), lru.size());
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+    CPPUNIT_ASSERT_EQUAL(300, lru.find(3)->second);
+    CPPUNIT_ASSERT_EQUAL(400, lru.find(4)->second);
+    CPPUNIT_ASSERT_EQUAL(500, lru.find(5)->second);
+    CPPUNIT_ASSERT_EQUAL(600, lru.find(6)->second);
+
+    // access the lru entry to put it at the back of the lru queue
+    lru.find(2);
+    // add new entry - lru entry should be removed
+    lru.insert(std::make_pair<int, int>(7, 700));
+
+    CPPUNIT_ASSERT_EQUAL(size_t(5), lru.size());
+    CPPUNIT_ASSERT_EQUAL(200, lru.find(2)->second);
+    CPPUNIT_ASSERT_EQUAL(400, lru.find(4)->second);
+    CPPUNIT_ASSERT_EQUAL(500, lru.find(5)->second);
+    CPPUNIT_ASSERT_EQUAL(600, lru.find(6)->second);
+    CPPUNIT_ASSERT_EQUAL(700, lru.find(7)->second);
+}
+
+namespace
+{
+struct TestClassKey
+{
+    int mA;
+    int mB;
+
+    TestClassKey(int a, int b)
+        : mA(a)
+        , mB(b)
+    {
+    }
+
+    bool operator==(TestClassKey const& aOther) const { return mA == aOther.mA && mB == aOther.mB; }
+};
+
+struct TestClassKeyHashFunction
+{
+    std::size_t operator()(TestClassKey const& aKey) const
+    {
+        std::size_t seed = 0;
+        o3tl::hash_combine(seed, aKey.mA);
+        o3tl::hash_combine(seed, aKey.mB);
+        return seed;
+    }
+};
+}
+
+void lru_map_test::testCustomHash()
+{
+    // check lru_map with custom hash function
+    o3tl::lru_map<TestClassKey, int, TestClassKeyHashFunction> lru(2);
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+
+    lru.insert(std::make_pair<TestClassKey, int>(TestClassKey(1, 1), 2));
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+
+    lru.insert(std::make_pair<TestClassKey, int>(TestClassKey(1, 1), 7));
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+
+    lru.insert(std::make_pair<TestClassKey, int>(TestClassKey(1, 2), 9));
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+
+    CPPUNIT_ASSERT(bool(lru.end() == lru.find(TestClassKey(0, 0)))); // non existent
+    CPPUNIT_ASSERT_EQUAL(7, lru.find(TestClassKey(1, 1))->second);
+    CPPUNIT_ASSERT_EQUAL(9, lru.find(TestClassKey(1, 2))->second);
+
+    lru.insert(std::make_pair<TestClassKey, int>(TestClassKey(2, 1), 13));
+
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+
+    CPPUNIT_ASSERT(bool(lru.end() == lru.find(TestClassKey(1, 1))));
+    CPPUNIT_ASSERT_EQUAL(9, lru.find(TestClassKey(1, 2))->second);
+    CPPUNIT_ASSERT_EQUAL(13, lru.find(TestClassKey(2, 1))->second);
+}
+
+void lru_map_test::testRemoveIf()
+{
+    typedef o3tl::lru_map<int, int> IntMap;
+    typedef IntMap::key_value_pair_t IntMapPair;
+    struct limit_except : public std::exception
+    {
+    };
+
+    IntMap lru(6);
+    int i = 0;
+    for (; i < 8; i++)
+        lru.insert({ i, i });
+    CPPUNIT_ASSERT_EQUAL(size_t(6), lru.size());
+    // now contains 7..2
+
+    // remove everything < 4 from the back
+    try
+    {
+        lru.remove_if([](IntMapPair const& rPair) {
+            if (rPair.first >= 4)
+                throw limit_except();
+            return true;
+        });
+        CPPUNIT_ASSERT(false); // not reached
+    }
+    catch (limit_except&)
+    {
+        // contains 7..4
+        CPPUNIT_ASSERT_EQUAL(size_t(4), lru.size());
+    }
+
+    // remove all even numbers
+    lru.remove_if([](IntMapPair const& rPair) { return (0 == rPair.first % 2); });
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    // contains 7, 5
+
+    lru.insert({ 5, 5 });
+    // contains 5, 7
+
+    i = 5;
+    for (auto& rPair : lru)
+    {
+        CPPUNIT_ASSERT_EQUAL(i, rPair.first);
+        i += 2;
+    }
+
+    // remove the first item
+    lru.remove_if([](IntMapPair const& rPair) { return (rPair.first == 5); });
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+
+    // remove the only item
+    lru.remove_if([](IntMapPair const& rPair) { return (rPair.first == 7); });
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+}
+
+void lru_map_test::testChangeMaxSize()
+{
+    o3tl::lru_map<int, int> lru(3);
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+    lru.insert({ 0, 0 });
+    lru.insert({ 1, 1 });
+    lru.insert({ 2, 2 });
+    CPPUNIT_ASSERT_EQUAL(size_t(3), lru.size());
+    lru.setMaxSize(1);
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+}
+
+void lru_map_test::testCustomItemSize()
+{
+    struct cost_is_value
+    {
+        size_t operator()(int i) { return i; };
+    };
+    o3tl::lru_map<int, int, std::hash<int>, std::equal_to<int>, cost_is_value> lru(5);
+    lru.insert({ 1, 1 });
+    lru.insert({ 2, 2 });
+    // Adding this one will remove the first one, since then the total
+    // cost would be 6, more than the maximum 5.
+    lru.insert({ 3, 3 });
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.size());
+    CPPUNIT_ASSERT_EQUAL(size_t(5), lru.total_size());
+    // Drop the last item.
+    lru.remove_if([](std::pair<int, int> i) { return i.first == 3; });
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+    CPPUNIT_ASSERT_EQUAL(size_t(2), lru.total_size());
+    // This should drop everything except for keeping this one (an exception that
+    // keeps the last item inserted regardless of limit).
+    lru.insert({ 4, 4 });
+    CPPUNIT_ASSERT_EQUAL(size_t(1), lru.size());
+    CPPUNIT_ASSERT_EQUAL(size_t(4), lru.total_size());
+    lru.clear();
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.size());
+    CPPUNIT_ASSERT_EQUAL(size_t(0), lru.total_size());
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(lru_map_test);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */