/**
 *
 */
package it.univr.di.cstnu.graph;

import it.unimi.dsi.fastutil.objects.ObjectAVLTreeSet;
import it.unimi.dsi.fastutil.objects.ObjectList;
import it.unimi.dsi.fastutil.objects.ObjectSortedSet;
import org.apache.commons.lang3.tuple.Triple;
import org.junit.Test;
import org.xml.sax.SAXException;

import javax.xml.parsers.ParserConfigurationException;
import java.io.File;
import java.io.IOException;

import static org.junit.Assert.assertEquals;

/**
 * @author posenato
 */
public class TNGraphTest {


	/**
	 *
	 */
	static File fileSTNU = new File("src/test/resources/dc_500nodes_050ctgs_5lanes_001_SQRT_CTG_DENSE.stnu");
	/**
	 *
	 */
	TNGraphMLReader<STNUEdge> readerSTNU;

	/**
	 *
	 */
	TNGraph<STNUEdge> stnu;


	/**
	 * Check the method getEdgeCount()
	 *
	 * @throws IOException                  if any error
	 * @throws ParserConfigurationException if any error
	 * @throws SAXException                 if any error.
	 */
	@Test
	public void testSTNUGetEdgeCount() throws Exception {
		this.readerSTNU = new TNGraphMLReader<>();
		this.stnu = this.readerSTNU.readGraph(fileSTNU, STNUEdgeInt.class);
		assertEquals(2254, this.stnu.getEdgeCount());

	}

	/**
	 * Dijkstra
	 */
	@Test
	public void testgetEdgesNodes() {
		final LabeledNode W = new LabeledNode("W");
		final LabeledNode Y = new LabeledNode("Y");
		final LabeledNode X = new LabeledNode("X");
		final LabeledNode Z = new LabeledNode("Z");
		final LabeledNode Ω = new LabeledNode("Ω");
		final TNGraph<STNEdge> graph = new TNGraph<>("graph", STNEdgeInt.class);
		graph.addVertex(W);
		graph.addVertex(X);
		graph.addVertex(Y);
		graph.addVertex(Z);
		STNEdge e = new STNEdgeInt("WΩ", -1);
		graph.addEdge(e, W, Ω);
		e = new STNEdgeInt("XW", -1);
		graph.addEdge(e, X, W);
		e = new STNEdgeInt("XY", 1);
		graph.addEdge(e, X, Y);
		e = new STNEdgeInt("XZ", 2);
		graph.addEdge(e, X, Z);
		e = new STNEdgeInt("YΩ", 0);
		graph.addEdge(e, Y, Ω);
		e = new STNEdgeInt("ZΩ", 3);
		graph.addEdge(e, Z, Ω);
		final ObjectList<Triple<LabeledNode, STNEdge, LabeledNode>> list = graph.getEdgesAndNodes();
		final ObjectSortedSet<Triple<LabeledNode, STNEdge, LabeledNode>> sorted = new ObjectAVLTreeSet<>(list);
		assertEquals(
			"{(❮W❯,❮WΩ; requirement; -1; ❯,❮Ω❯), (❮X❯,❮XW; requirement; -1; ❯,❮W❯), (❮X❯,❮XY; requirement; 1; ❯,❮Y❯), (❮X❯,❮XZ; requirement; 2; ❯,❮Z❯), (❮Y❯,❮YΩ; requirement; 0; ❯,❮Ω❯), (❮Z❯,❮ZΩ; requirement; 3; ❯,❮Ω❯)}"
			, sorted.toString());
	}
}