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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vdslib/distribution/group.h>
#include <vespa/vespalib/gtest/gtest.h>
using namespace storage::lib;
Group::UP
make_group(uint16_t index, vespalib::stringref distribution, uint16_t redundancy = 1)
{
return std::make_unique<Group>(index, "group", Group::Distribution(distribution), redundancy);
}
TEST(GroupTest, test_operators)
{
{
auto g0 = make_group(0, "1|*|*");
auto g1 = make_group(0, "1|*|*");
EXPECT_EQ(*g0, *g1);
}
{
auto g0 = make_group(0, "1|*|*");
auto g1 = make_group(1, "1|*|*");
EXPECT_FALSE(*g0 == *g1);
}
{
auto g0 = make_group(0, "1|*");
auto g1 = make_group(0, "1|*|*");
EXPECT_FALSE(*g0 == *g1);
}
{
auto g0 = make_group(0, "1|*");
auto g1 = make_group(1, "1|*|*");
g0->addSubGroup(std::move(g1));
auto g2 = make_group(0, "1|*");
EXPECT_FALSE(*g0 == *g2);
}
}
TEST(GroupTest, test_star_conversion)
{
{
auto g = make_group(0, "*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(1, distribution.size());
EXPECT_EQ(3, distribution[0]);
}
{
auto g = make_group(0, "1|*|*", 5);
const auto& distribution = g->getDistribution(5);
ASSERT_EQ(3, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(2, distribution[1]);
EXPECT_EQ(1, distribution[2]);
}
{
auto g = make_group(0, "1|*|*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(3, distribution.size());
EXPECT_EQ(1, distribution[0]);
EXPECT_EQ(1, distribution[1]);
EXPECT_EQ(1, distribution[2]);
}
{
auto g = make_group(0, "1|*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(2, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
}
{
auto g = make_group(0, "4|*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(2, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
}
{
auto g = make_group(0, "2|*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(2, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
}
{
auto g = make_group(0, "2|*", 0);
const auto& distribution = g->getDistribution(0);
ASSERT_EQ(0, distribution.size());
}
{
auto g = make_group(0, "*|*", 3);
const auto& distribution = g->getDistribution(3);
ASSERT_EQ(2, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
}
{
auto g = make_group(0, "*|*|*", 4);
const auto& distribution = g->getDistribution(4);
ASSERT_EQ(3, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
EXPECT_EQ(1, distribution[2]);
}
{
auto g = make_group(0, "*|*|*", 5);
const auto& distribution = g->getDistribution(5);
ASSERT_EQ(3, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(2, distribution[1]);
EXPECT_EQ(1, distribution[2]);
}
{
auto g = make_group(0, "*|*|*", 12);
const auto& distribution = g->getDistribution(12); // Shall be evenly divided
ASSERT_EQ(3, distribution.size());
EXPECT_EQ(4, distribution[0]);
EXPECT_EQ(4, distribution[1]);
EXPECT_EQ(4, distribution[2]);
}
{
auto g = make_group(0, "*|*|*|*", 5);
const auto& distribution = g->getDistribution(5);
ASSERT_EQ(4, distribution.size());
EXPECT_EQ(2, distribution[0]);
EXPECT_EQ(1, distribution[1]);
EXPECT_EQ(1, distribution[2]);
EXPECT_EQ(1, distribution[3]);
}
}
TEST(GroupTest, test_group_index_order)
{
uint16_t numGroups=10;
std::vector<Group::UP> groups;
for (uint16_t i=0; i< numGroups; ++i){
groups.push_back(make_group(i, "5|*"));
}
for (uint16_t i=1; i< 10; ++i){
groups[0]->addSubGroup(std::move(groups[numGroups-i]));
}
uint16_t last=0;
for (const auto& sub_group : groups[0]->getSubGroups()) {
uint16_t index = sub_group.second->getIndex();
ASSERT_EQ(index, sub_group.first);
EXPECT_LE(last, index);
last = index;
}
}
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