forked from JavaTX/JavaCompilerCore
665 lines
19 KiB
Java
665 lines
19 KiB
Java
package unify;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.junit.Test;
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import de.dhbwstuttgart.typeinference.unify.Unify;
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import de.dhbwstuttgart.typeinference.unify.interfaces.IFiniteClosure;
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import de.dhbwstuttgart.typeinference.unify.model.UnifyPair;
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import de.dhbwstuttgart.typeinference.unify.model.PairOperator;
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import de.dhbwstuttgart.typeinference.unify.model.PlaceholderType;
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import de.dhbwstuttgart.typeinference.unify.model.UnifyType;
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import de.dhbwstuttgart.typeinference.unify.model.TypeParams;
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import junit.framework.Assert;
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public class UnifyTest extends Unify {
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/**
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* Testing the unification for cases with (n)one pair and without generics.
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*/
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@Test
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public void unifyTestTrivial() {
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/*
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* INIT
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*/
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TypeFactory tf = new TypeFactory();
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FiniteClosureBuilder fcb = new FiniteClosureBuilder();
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UnifyType number = tf.getSimpleType("Number");
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UnifyType object = tf.getSimpleType("Object");
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UnifyType integer = tf.getSimpleType("Integer");
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UnifyType doubl = tf.getSimpleType("Double");
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fcb.add(number, object);
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fcb.add(integer, number);
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fcb.add(doubl, number);
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IFiniteClosure fc = fcb.getCollectionExample();
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/*
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* Test 1:
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*
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* unify({ }) = { }
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*/
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Set<UnifyPair> eq = new HashSet<UnifyPair>();
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Set<Set<UnifyPair>> expected = new HashSet<>();
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expected.add(new HashSet<>());
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Set<Set<UnifyPair>> actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 2:
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*
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* (a <. Number)
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*/
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UnifyType tphA = tf.getPlaceholderType("a");
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, number, PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, integer, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, doubl, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 3:
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*
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* (Integer <. a)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(integer, tphA, PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, integer, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, object, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 4:
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*
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* (a <.? Number)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, number, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 5:
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*
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* (a <.? ? super Integer)
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*/
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UnifyType supInteger = tf.getSuperType(integer);
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UnifyType supNumber = tf.getSuperType(number);
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UnifyType supObject = tf.getSuperType(object);
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, supInteger, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, integer, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, object, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supInteger, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supNumber, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supObject, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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System.out.println("? super Integer");
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System.out.println(actual);
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actual = filterGeneratedTPHsMultiple(actual);
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Assert.assertEquals(expected, actual);
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/*
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* Test 6:
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*
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* (Number <.? a)
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*
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*/
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eq = new HashSet<>();
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UnifyType extNumber = tf.getExtendsType(number);
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UnifyType extObject = tf.getExtendsType(object);
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UnifyType supDouble = tf.getSuperType(doubl);
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eq.add(new UnifyPair(number, tphA, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, extNumber, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, extObject, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supInteger, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supDouble, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, supNumber, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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actual = filterGeneratedTPHsMultiple(actual);
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Assert.assertEquals(expected, actual);
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/*
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* Test 7:
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*
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* (? extends Number <.? a)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(extNumber, tphA, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, extNumber, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, extObject, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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actual = filterGeneratedTPHsMultiple(actual);
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Assert.assertEquals(expected, actual);
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/*
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* Test 8:
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*
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* (a <.? ? extends Number)
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*/
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UnifyType extInteger = tf.getExtendsType(integer);
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UnifyType extDouble = tf.getExtendsType(doubl);
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, extNumber, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, extNumber, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, extInteger, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, extDouble, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, doubl, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, integer, PairOperator.EQUALSDOT));
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addAsSet(expected, new UnifyPair(tphA, number, PairOperator.EQUALSDOT));
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actual = unify(eq, fc);
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actual = filterGeneratedTPHsMultiple(actual);
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Assert.assertEquals(expected, actual);
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/*
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* Test 8:
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*
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* (Integer <. Number)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(integer, number, PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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expected.add(new HashSet<>());
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 9:
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*
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* (Integer <.? Number)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(integer, number, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 10:
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*
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* (a <. b)
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*/
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UnifyType tphB = tf.getPlaceholderType("b");
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, tphB, PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, tphB, PairOperator.SMALLERDOT));
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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/*
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* Test 11:
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*
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* (a <.? b)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, tphB, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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addAsSet(expected, new UnifyPair(tphA, tphB, PairOperator.SMALLERDOTWC));
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actual = unify(eq, fc);
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Assert.assertEquals(expected, actual);
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}
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@Test
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public void unifyTestSimple() {
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/*
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* INIT
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*/
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TypeFactory tf = new TypeFactory();
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FiniteClosureBuilder fcb = new FiniteClosureBuilder();
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UnifyType number = tf.getSimpleType("Number");
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UnifyType object = tf.getSimpleType("Object");
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UnifyType integer = tf.getSimpleType("Integer");
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UnifyType doubl = tf.getSimpleType("Double");
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//fcb.add(number, object);
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fcb.add(integer, number);
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//fcb.add(doubl, number);
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IFiniteClosure fc = fcb.getCollectionExample();
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/*
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* Test 1:
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*
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* (Vector<a> <. Vector<? extends b>)
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* (List<b> <. List<? extends Number>)
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*
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* Expected:
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* {(b = Number), (a = Number)}, {(b = Number), (a = Integer)}, {(b = Number), (a = Integer)}
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* (b = Integer),
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*/
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UnifyType tphA = tf.getPlaceholderType("a");
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UnifyType tphB = tf.getPlaceholderType("b");
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UnifyType extB = tf.getExtendsType(tphB);
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UnifyType extNum = tf.getExtendsType(number);
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Set<UnifyPair> eq = new HashSet<UnifyPair>();
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eq.add(new UnifyPair(tf.getSimpleType("Vector", tphA), tf.getSimpleType("Vector", extB), PairOperator.SMALLERDOT));
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eq.add(new UnifyPair(tf.getSimpleType("List", tphB), tf.getSimpleType("List", extNum), PairOperator.SMALLERDOT));
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Set<Set<UnifyPair>> expected = new HashSet<>();
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Set<Set<UnifyPair>> actual = unify(eq, fc);
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//System.out.println(actual);
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//Assert.assertEquals(actual, expected);
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/*
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* Test 2:
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*
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* Vector<? extends a> <. List<? extends Number>
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*
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*/
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UnifyType extA = tf.getExtendsType(tphA);
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eq = new HashSet<UnifyPair>();
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eq.add(new UnifyPair(tf.getSimpleType("Vector", extA), tf.getSimpleType("Vector", extNum), PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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//System.out.println(actual);
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//Assert.assertEquals(actual, expected);
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/*
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* Test 3:
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*
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* Vector<? extends Number> <. List<? extends a>
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*
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*/
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eq = new HashSet<UnifyPair>();
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eq.add(new UnifyPair(tf.getSimpleType("Vector", extNum), tf.getSimpleType("Vector", extA), PairOperator.SMALLERDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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System.out.println(actual);
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//Assert.assertEquals(actual, expected);
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/*
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* Test 4:
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*
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* LinkedList <. Deque <. Queue <. Collection
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*
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* Vector<Number> <. List<a>
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* List<a> <. AbstractList<b>
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* ? extends Number <.? b
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*/
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eq = new HashSet<UnifyPair>();
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eq.add(new UnifyPair(tf.getSimpleType("LinkedList", number), tf.getSimpleType("Deque", tphA), PairOperator.SMALLERDOT));
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eq.add(new UnifyPair(tf.getSimpleType("Deque", tphA), tf.getSimpleType("Queue", tphB), PairOperator.SMALLERDOT));
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eq.add(new UnifyPair(extNum, tphB, PairOperator.SMALLERDOTWC));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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//System.out.println(actual);
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//Assert.assertEquals(actual, expected);
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}
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/**
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* These are tests that specifically test cases where the old unify algorithm was incomplete.
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*/
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@Test
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public void unifyTestExtension() {
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/*
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* INIT
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*/
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TypeFactory tf = new TypeFactory();
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FiniteClosureBuilder fcb = new FiniteClosureBuilder();
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UnifyType number = tf.getSimpleType("Number");
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UnifyType object = tf.getSimpleType("Object");
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UnifyType integer = tf.getSimpleType("Integer");
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UnifyType doubl = tf.getSimpleType("Double");
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UnifyType mygeneric = tf.getSimpleType("MyGeneric", "T");
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fcb.add(mygeneric, object);
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fcb.add(integer, number);
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//fcb.add(doubl, number);
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IFiniteClosure fc = fcb.getCollectionExample();
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/*
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* Test 1:
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* This is a Test for the extension of case 1 in the cartesian product of step 4.
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*
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* (a <. Vector<b>)
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* (List<Integer> <. List<b>)
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*
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* Expected:
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* (b = Integer), (a = Vector<Integer>)
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* (b = ? extends Integer), (a = Vector<Integer>),
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* (b = ? extends Integer), (a = Vector<? extends Integer>),
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* (b = ? super Integer), (a = Vector<Integer>)
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* (b = ? super Integer), (a = Vector<Number>)
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* (b = ? super Integer), (a = Vector<? super Integer>)
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* (b = ? super Integer), (a = Vector<? super Number>)
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* (b = ? extends Number), (a = Vector<Integer>)
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* (b = ? extends Number), (a = Vector<Number>)
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* (b = ? extends Number), (a = Vector<? extends Integer>)
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* (b = ? extends Number), (a = Vector<? extends Number>)
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*/
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UnifyType tphA = tf.getPlaceholderType("a");
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UnifyType tphB = tf.getPlaceholderType("b");
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UnifyType extB = tf.getExtendsType(tphB);
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UnifyType extNum = tf.getExtendsType(number);
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Set<UnifyPair> eq = new HashSet<UnifyPair>();
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eq.add(new UnifyPair(tphA, tf.getSimpleType("Stack", tphB), PairOperator.SMALLERDOT));
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eq.add(new UnifyPair(tf.getSimpleType("List", integer), tf.getSimpleType("List", tphB), PairOperator.SMALLERDOT));
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Set<Set<UnifyPair>> expected = new HashSet<>();
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Set<Set<UnifyPair>> actual = unify(eq, fc);
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System.out.println(actual);
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//Assert.assertEquals(actual, expected);
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/*
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* Test 2:
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*
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* This is a test for th extension of case 2 of the cartesian product of step 4.
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*
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* (a <.? ? ext b)
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* (b =. Number)
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, extB, PairOperator.SMALLERDOTWC));
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eq.add(new UnifyPair(tphB, number, PairOperator.EQUALSDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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System.out.println("Case 2");
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System.out.println(actual);
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/*
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* Test 3:
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* This is a test for the extension of case 3 of the cartesian product of step 4.
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*
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* (a <.? ? sup b)
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* (b = Number)
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*/
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UnifyType supB = tf.getSuperType(tphB);
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eq = new HashSet<>();
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eq.add(new UnifyPair(tphA, supB, PairOperator.SMALLERDOTWC));
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eq.add(new UnifyPair(tphB, number, PairOperator.EQUALSDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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System.out.println("Case 3");
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System.out.println(actual);
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//Assert.assertEquals(expected, actual);
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/*
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* Case 4 has no extension
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*/
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/*
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* Test 5:
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* This is a test for the extension of case 5 of the cartesian product of step 4.
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*
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* Vector<b> <. a
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* b =. Number
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(tf.getSimpleType("HashSet", tphB), tphA, PairOperator.SMALLERDOT));
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eq.add(new UnifyPair(tphB, number, PairOperator.EQUALSDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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System.out.println(actual);
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//Assert.assertEquals(expected, actual);
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/*
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* Test 6:
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* This is a test for the extension of case 6 of the cartesian product of step 4.
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*
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* ? extends b <.? a
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* b =. Integer
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*/
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eq = new HashSet<>();
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eq.add(new UnifyPair(extB, tphA, PairOperator.SMALLERDOTWC));
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eq.add(new UnifyPair(tphB, integer, PairOperator.EQUALSDOT));
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expected = new HashSet<>();
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actual = unify(eq, fc);
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System.out.println(actual);
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//Assert.assertEquals(expected, actual);
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/*
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* Test 7:
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* This is a test for the extension of case 7 of the cartesian product of step 4.
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*
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* ? sup b <.? a
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* b =. Number
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*/
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|
|
|
eq = new HashSet<>();
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|
eq.add(new UnifyPair(supB, tphA, PairOperator.SMALLERDOTWC));
|
|
eq.add(new UnifyPair(tphB, number, PairOperator.EQUALSDOT));
|
|
|
|
expected = new HashSet<>();
|
|
|
|
actual = unify(eq, fc);
|
|
|
|
System.out.println("Case 7");
|
|
System.out.println(actual);
|
|
//Assert.assertEquals(expected, actual);
|
|
|
|
|
|
/*
|
|
* Test 8:
|
|
* This is a test for the extension of case 8 of the cartesian product of step 4.
|
|
*
|
|
* MyGeneric<? extends b> <.? a
|
|
* b =. Integer
|
|
*/
|
|
|
|
eq = new HashSet<>();
|
|
eq.add(new UnifyPair(tf.getSimpleType("MyGeneric", extB), tphA, PairOperator.SMALLERDOTWC));
|
|
eq.add(new UnifyPair(tphB, number, PairOperator.EQUALSDOT));
|
|
|
|
expected = new HashSet<>();
|
|
|
|
actual = unify(eq, fc);
|
|
|
|
System.out.println("Case 8:");
|
|
System.out.println(actual);
|
|
//Assert.assertEquals(expected, actual);
|
|
|
|
}
|
|
|
|
@Test
|
|
public void unifyTestComplex() {
|
|
/*
|
|
* INIT
|
|
*/
|
|
TypeFactory tf = new TypeFactory();
|
|
FiniteClosureBuilder fcb = new FiniteClosureBuilder();
|
|
|
|
UnifyType tphT = tf.getPlaceholderType("T");
|
|
UnifyType vector = tf.getSimpleType("Vector", tphT);
|
|
UnifyType number = tf.getSimpleType("Number");
|
|
UnifyType integer = tf.getSimpleType("Integer");
|
|
UnifyType object = tf.getSimpleType("Object");
|
|
UnifyType matrix = tf.getSimpleType("Matrix");
|
|
UnifyType vectorvectorint = tf.getSimpleType("Vector", tf.getSimpleType("Vector", integer));
|
|
|
|
|
|
fcb.add(integer, number);
|
|
fcb.add(matrix, vectorvectorint);
|
|
fcb.add(vector, object);
|
|
|
|
IFiniteClosure fc = fcb.getFiniteClosure();
|
|
|
|
Set<UnifyPair> eq = new HashSet<UnifyPair>();
|
|
eq.add(new UnifyPair(tf.getSimpleType("Matrix"), tf.getSimpleType("Vector", tf.getPlaceholderType("a")), PairOperator.SMALLERDOT));
|
|
|
|
Set<Set<UnifyPair>> expected = new HashSet<>();
|
|
Set<Set<UnifyPair>> actual = unify(eq, fc);
|
|
|
|
System.out.println("Test Matrix:");
|
|
System.out.println(actual);
|
|
}
|
|
|
|
@Test
|
|
public void applyTypeUnificationRulesTest() {
|
|
|
|
}
|
|
|
|
@Test
|
|
public void calculatePairSetsTest() {
|
|
|
|
}
|
|
|
|
@Test
|
|
public void permuteParamsTest() {
|
|
TypeFactory tf = new TypeFactory();
|
|
ArrayList<Set<UnifyType>> candidates = new ArrayList<>();
|
|
|
|
UnifyType p11 = tf.getPlaceholderType("p11");
|
|
UnifyType p12 = tf.getExtendsType(tf.getSimpleType("p12"));
|
|
UnifyType p13 = tf.getSimpleType("p13");
|
|
UnifyType p21 = tf.getPlaceholderType("p21");
|
|
UnifyType p22 = tf.getPlaceholderType("p22");
|
|
UnifyType p31 = tf.getSimpleType("p31", "T");
|
|
|
|
Set<UnifyType> p1 = new HashSet<>();
|
|
p1.add(p11);
|
|
p1.add(p12);
|
|
p1.add(p13);
|
|
|
|
Set<UnifyType> p2 = new HashSet<>();
|
|
p2.add(p21);
|
|
p2.add(p22);
|
|
|
|
Set<UnifyType> p3 = new HashSet<>();
|
|
p3.add(p31);
|
|
|
|
candidates.add(p1);
|
|
candidates.add(p2);
|
|
candidates.add(p3);
|
|
|
|
|
|
/*
|
|
* Expected Result:
|
|
* {<x, y, z> | x in { p11, p12, p13}, y in { p21, p22 }, z in { p31 }}
|
|
*/
|
|
Set<TypeParams> expected = Arrays.stream(new TypeParams[] {
|
|
new TypeParams(p11, p21, p31),
|
|
new TypeParams(p11, p22, p31),
|
|
new TypeParams(p12, p21, p31),
|
|
new TypeParams(p12, p22, p31),
|
|
new TypeParams(p13, p21, p31),
|
|
new TypeParams(p13, p22, p31)
|
|
}).collect(Collectors.toSet());
|
|
|
|
Set<TypeParams> actual = permuteParams(candidates);
|
|
|
|
Assert.assertEquals(expected, actual);
|
|
}
|
|
|
|
private Set<Set<UnifyPair>> filterGeneratedTPHsMultiple(Set<Set<UnifyPair>> set) {
|
|
return set.stream().map(x -> filterGeneratedTPHs(x)).collect(Collectors.toSet());
|
|
}
|
|
|
|
private Set<UnifyPair> filterGeneratedTPHs(Set<UnifyPair> set) {
|
|
return set.stream().filter(x -> !((x.getRhsType() instanceof PlaceholderType) && ((PlaceholderType) x.getRhsType()).isGenerated())).
|
|
filter(x -> !((x.getLhsType() instanceof PlaceholderType) && ((PlaceholderType) x.getLhsType()).isGenerated())).collect(Collectors.toSet());
|
|
}
|
|
|
|
private void addAsSet(Set<Set<UnifyPair>> addTo, UnifyPair... mPairs) {
|
|
addTo.add(new HashSet<>(Arrays.stream(mPairs).collect(Collectors.toSet())));
|
|
}
|
|
}
|