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AllowedEdgesTest.java
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AllowedEdgesTest.java
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package org.softwareheritage.graph;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
public class AllowedEdgesTest extends GraphTest {
static class EdgeType {
Node.Type src;
Node.Type dst;
public EdgeType(Node.Type src, Node.Type dst) {
this.src = src;
this.dst = dst;
}
@Override
public boolean equals(Object otherObj) {
if (otherObj == this) return true;
if (!(otherObj instanceof EdgeType)) return false;
EdgeType other = (EdgeType) otherObj;
return src == other.src && dst == other.dst;
}
}
void assertEdgeRestriction(AllowedEdges edges, ArrayList<EdgeType> expectedAllowed) {
Node.Type[] nodeTypes = Node.Type.values();
for (Node.Type src : nodeTypes) {
for (Node.Type dst : nodeTypes) {
EdgeType edge = new EdgeType(src, dst);
boolean isAllowed = edges.isAllowed(src, dst);
boolean isExpected = false;
for (EdgeType expected : expectedAllowed) {
if (expected.equals(edge)) {
isExpected = true;
break;
}
}
Assertions.assertEquals(isAllowed, isExpected, "Edge type: " + src + " -> " + dst);
}
}
}
@Test
public void dirToDirDirToCntEdges() {
AllowedEdges edges = new AllowedEdges("dir:dir,dir:cnt");
ArrayList<EdgeType> expected = new ArrayList<>();
expected.add(new EdgeType(Node.Type.DIR, Node.Type.DIR));
expected.add(new EdgeType(Node.Type.DIR, Node.Type.CNT));
assertEdgeRestriction(edges, expected);
}
@Test
public void relToRevRevToRevRevToDirEdges() {
AllowedEdges edges = new AllowedEdges("rel:rev,rev:rev,rev:dir");
ArrayList<EdgeType> expected = new ArrayList<>();
expected.add(new EdgeType(Node.Type.REL, Node.Type.REV));
expected.add(new EdgeType(Node.Type.REV, Node.Type.REV));
expected.add(new EdgeType(Node.Type.REV, Node.Type.DIR));
assertEdgeRestriction(edges, expected);
}
@Test
public void revToAllDirToDirEdges() {
AllowedEdges edges = new AllowedEdges("rev:*,dir:dir");
ArrayList<EdgeType> expected = new ArrayList<>();
for (Node.Type dst : Node.Type.values()) {
expected.add(new EdgeType(Node.Type.REV, dst));
}
expected.add(new EdgeType(Node.Type.DIR, Node.Type.DIR));
assertEdgeRestriction(edges, expected);
}
@Test
public void allToCntEdges() {
AllowedEdges edges = new AllowedEdges("*:cnt");
ArrayList<EdgeType> expected = new ArrayList<>();
for (Node.Type src : Node.Type.values()) {
expected.add(new EdgeType(src, Node.Type.CNT));
}
assertEdgeRestriction(edges, expected);
}
@Test
public void allEdges() {
AllowedEdges edges = new AllowedEdges("*:*");
ArrayList<EdgeType> expected = new ArrayList<>();
for (Node.Type src : Node.Type.values()) {
for (Node.Type dst : Node.Type.values()) {
expected.add(new EdgeType(src, dst));
}
}
assertEdgeRestriction(edges, expected);
// Special null value used to quickly bypass edge check when no restriction
AllowedEdges edges2 = new AllowedEdges("*");
Assertions.assertNull(edges2.restrictedTo);
}
@Test
public void noEdges() {
AllowedEdges edges = new AllowedEdges("");
AllowedEdges edges2 = new AllowedEdges(null);
ArrayList<EdgeType> expected = new ArrayList<>();
assertEdgeRestriction(edges, expected);
assertEdgeRestriction(edges2, expected);
}
}

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