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/*
Ousía
Copyright (C) 2014, 2015 Benjamin Paaßen, Andreas Stöckel
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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, see <http://www.gnu.org/licenses/>.
*/
#include <array>
#include <string>
#include <iostream>
#include <gtest/gtest.h>
#include <core/dom/Node.hpp>
namespace ousia {
namespace dom {
/* Class NodeDescriptor */
TEST(NodeDescriptor, nodeDegree)
{
// Do not use actual Node in this test -- we don't want to test their
// behaviour
NodeDescriptor nd;
Node *n1 = reinterpret_cast<Node *>(intptr_t{0x10});
Node *n2 = reinterpret_cast<Node *>(intptr_t{0x20});
// Input degree
ASSERT_EQ(0, nd.refIn.size());
ASSERT_EQ(0, nd.refInCount(n1));
nd.incrNodeDegree(RefDir::in, n1);
ASSERT_EQ(1, nd.refInCount());
ASSERT_EQ(1, nd.refInCount(n1));
ASSERT_EQ(0, nd.refInCount(n2));
ASSERT_EQ(1, nd.refIn.size());
nd.incrNodeDegree(RefDir::in, n1);
ASSERT_EQ(2, nd.refInCount());
ASSERT_EQ(2, nd.refInCount(n1));
ASSERT_EQ(0, nd.refInCount(n2));
ASSERT_EQ(1, nd.refIn.size());
nd.incrNodeDegree(RefDir::in, n2);
ASSERT_EQ(3, nd.refInCount());
ASSERT_EQ(2, nd.refInCount(n1));
ASSERT_EQ(1, nd.refInCount(n2));
ASSERT_EQ(2, nd.refIn.size());
nd.incrNodeDegree(RefDir::in, nullptr);
ASSERT_EQ(4, nd.refInCount());
ASSERT_EQ(2, nd.refInCount(n1));
ASSERT_EQ(1, nd.refInCount(n2));
ASSERT_EQ(2, nd.refIn.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::in, n1));
ASSERT_EQ(3, nd.refInCount());
ASSERT_EQ(1, nd.refInCount(n1));
ASSERT_EQ(1, nd.refInCount(n2));
ASSERT_EQ(2, nd.refIn.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::in, n1));
ASSERT_EQ(2, nd.refInCount());
ASSERT_EQ(0, nd.refInCount(n1));
ASSERT_EQ(1, nd.refInCount(n2));
ASSERT_EQ(1, nd.refIn.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::in, n2));
ASSERT_EQ(1, nd.refInCount());
ASSERT_EQ(0, nd.refInCount(n1));
ASSERT_EQ(0, nd.refInCount(n2));
ASSERT_EQ(0, nd.refIn.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::in, nullptr));
ASSERT_EQ(0, nd.refInCount());
ASSERT_EQ(0, nd.refInCount(n1));
ASSERT_EQ(0, nd.refInCount(n2));
ASSERT_EQ(0, nd.refIn.size());
// Output degree
ASSERT_EQ(0, nd.refOut.size());
ASSERT_EQ(0, nd.refOutCount(n1));
nd.incrNodeDegree(RefDir::out, n1);
ASSERT_EQ(1, nd.refOutCount());
ASSERT_EQ(1, nd.refOutCount(n1));
ASSERT_EQ(0, nd.refOutCount(n2));
ASSERT_EQ(1, nd.refOut.size());
nd.incrNodeDegree(RefDir::out, n1);
ASSERT_EQ(2, nd.refOutCount());
ASSERT_EQ(2, nd.refOutCount(n1));
ASSERT_EQ(0, nd.refOutCount(n2));
ASSERT_EQ(1, nd.refOut.size());
nd.incrNodeDegree(RefDir::out, n2);
ASSERT_EQ(3, nd.refOutCount());
ASSERT_EQ(2, nd.refOutCount(n1));
ASSERT_EQ(1, nd.refOutCount(n2));
ASSERT_EQ(2, nd.refOut.size());
nd.incrNodeDegree(RefDir::out, nullptr);
ASSERT_EQ(3, nd.refOutCount());
ASSERT_EQ(2, nd.refOutCount(n1));
ASSERT_EQ(1, nd.refOutCount(n2));
ASSERT_EQ(2, nd.refOut.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::out, n1));
ASSERT_EQ(2, nd.refOutCount());
ASSERT_EQ(1, nd.refOutCount(n1));
ASSERT_EQ(1, nd.refOutCount(n2));
ASSERT_EQ(2, nd.refOut.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::out, n1));
ASSERT_EQ(1, nd.refOutCount());
ASSERT_EQ(0, nd.refOutCount(n1));
ASSERT_EQ(1, nd.refOutCount(n2));
ASSERT_EQ(1, nd.refOut.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::out, n2));
ASSERT_EQ(0, nd.refOutCount());
ASSERT_EQ(0, nd.refOutCount(n1));
ASSERT_EQ(0, nd.refOutCount(n2));
ASSERT_EQ(0, nd.refOut.size());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::out, nullptr));
ASSERT_EQ(0, nd.refOutCount());
ASSERT_EQ(0, nd.refOutCount(n1));
ASSERT_EQ(0, nd.refOutCount(n2));
ASSERT_EQ(0, nd.refOut.size());
}
TEST(NodeDescriptor, rootRefCount)
{
NodeDescriptor nd;
ASSERT_EQ(0, nd.rootRefCount);
nd.incrNodeDegree(RefDir::in, nullptr);
ASSERT_EQ(1, nd.rootRefCount);
nd.incrNodeDegree(RefDir::out, nullptr);
ASSERT_EQ(2, nd.rootRefCount);
ASSERT_EQ(2, nd.refInCount(nullptr));
ASSERT_EQ(2, nd.refInCount());
ASSERT_EQ(0, nd.refOutCount(nullptr));
ASSERT_EQ(0, nd.refOutCount());
ASSERT_TRUE(nd.decrNodeDegree(RefDir::out, nullptr));
ASSERT_EQ(1, nd.rootRefCount);
ASSERT_TRUE(nd.decrNodeDegree(RefDir::in, nullptr));
ASSERT_EQ(0, nd.rootRefCount);
ASSERT_FALSE(nd.decrNodeDegree(RefDir::in, nullptr));
ASSERT_EQ(0, nd.rootRefCount);
}
/* Class Handle */
TEST(Handle, equalsAndAssign)
{
NodeManager mgr(1);
Node *n1 = new Node(mgr), *n2 = new Node(mgr);
RootedNode rh1{n1};
RootedNode rh2{n2};
NodeHandle h2{n2, n1};
// Equals operator
ASSERT_TRUE(rh1 == n1);
ASSERT_TRUE(n1 == rh1);
ASSERT_FALSE(rh1 == rh2);
ASSERT_TRUE(rh2 == h2);
ASSERT_TRUE(h2 == rh2);
// Assignment operator
RootedNode rh2b;
ASSERT_FALSE(rh2b == rh2);
rh2b = rh2;
ASSERT_TRUE(rh2b == rh2);
ASSERT_TRUE(rh2b == h2);
rh2b = h2;
ASSERT_TRUE(rh2b == h2);
NodeHandle h2b;
ASSERT_FALSE(rh2 == h2b);
ASSERT_FALSE(h2 == h2b);
h2b = h2;
ASSERT_TRUE(rh2 == h2b);
ASSERT_TRUE(h2 == h2b);
NodeHandle h2c{h2b, n1};
ASSERT_TRUE(h2b == h2c);
}
/* Class NodeManager */
class TestNode : public Node {
private:
bool &alive;
std::vector<Handle<Node>> refs;
public:
TestNode(NodeManager &mgr, bool &alive) : Node(mgr), alive(alive)
{
alive = true;
}
~TestNode() override { alive = false; }
void addRef(BaseHandle<Node> h) { refs.push_back(acquire(h)); }
void deleteRef(BaseHandle<Node> h)
{
for (auto it = refs.begin(); it != refs.end();) {
if (*it == h) {
it = refs.erase(it);
} else {
it++;
}
}
}
};
TEST(NodeManager, linearDependencies)
{
std::array<bool, 4> a;
a.fill(false);
NodeManager mgr(1);
{
TestNode *n1, *n2, *n3;
n1 = new TestNode(mgr, a[1]);
n2 = new TestNode(mgr, a[2]);
n3 = new TestNode(mgr, a[3]);
{
RootedHandle<TestNode> hr{new TestNode(mgr, a[0])};
// All nodes must have set their "alive" flag to true
for (bool v : a) {
ASSERT_TRUE(v);
}
// Create a linear dependency chain
hr->addRef(n1);
n1->addRef(n2);
n2->addRef(n3);
}
// All nodes must have set their "alive" flag to false
for (bool v : a) {
ASSERT_FALSE(v);
}
}
}
TEST(NodeManager, cyclicDependencies)
{
std::array<bool, 4> a;
a.fill(false);
NodeManager mgr(1);
{
TestNode *n1, *n2, *n3;
n1 = new TestNode(mgr, a[1]);
n2 = new TestNode(mgr, a[2]);
n3 = new TestNode(mgr, a[3]);
{
RootedHandle<TestNode> hr{new TestNode(mgr, a[0])};
// All nodes must have set their "alive" flag to true
for (bool v : a) {
ASSERT_TRUE(v);
}
// Create a linear dependency chain
hr->addRef(n1);
n1->addRef(n2);
n2->addRef(n3);
n3->addRef(n1);
}
// All nodes must have set their "alive" flag to false
for (bool v : a) {
ASSERT_FALSE(v);
}
}
}
TEST(NodeManager, doubleRooted)
{
std::array<bool, 4> a;
a.fill(false);
NodeManager mgr(1);
{
TestNode *n1, *n2;
n1 = new TestNode(mgr, a[1]);
n2 = new TestNode(mgr, a[2]);
{
RootedHandle<TestNode> hr1{new TestNode(mgr, a[0])};
{
RootedHandle<TestNode> hr2{new TestNode(mgr, a[3])};
// All nodes must have set their "alive" flag to true
for (bool v : a) {
ASSERT_TRUE(v);
}
// Create cyclical dependency between n2 and n1
n1->addRef(n2);
n2->addRef(n1);
// Reference n1 and n2 in the rooted nodes
hr1->addRef(n1);
hr2->addRef(n2);
}
// hr2 is dead, all other nodes are still alive
ASSERT_FALSE(a[3]);
ASSERT_TRUE(a[0] && a[1] && a[2]);
}
// All nodes are dead
for (bool v : a) {
ASSERT_FALSE(v);
}
}
}
TEST(NodeManager, disconnectSubgraph)
{
std::array<bool, 4> a;
a.fill(false);
NodeManager mgr(1);
{
TestNode *n1, *n2, *n3;
n1 = new TestNode(mgr, a[1]);
n2 = new TestNode(mgr, a[2]);
n3 = new TestNode(mgr, a[3]);
{
RootedHandle<TestNode> hr{new TestNode(mgr, a[0])};
// Create a linear dependency chain
hr->addRef(n1);
n1->addRef(n2);
n2->addRef(n3);
// All nodes must have set their "alive" flag to true
for (bool v : a) {
ASSERT_TRUE(v);
}
// Remove the reference from n1 to n2
n1->deleteRef(n2);
// Nodes 2 and 3 must be dead, all others alive
ASSERT_FALSE(a[2] || a[3]);
ASSERT_TRUE(a[0] && a[1]);
}
// All nodes must have set their "alive" flag to false
for (bool v : a) {
ASSERT_FALSE(v);
}
}
}
}
}
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