From 2fdebc02033626aeb27effd9cce84649fb82ef59 Mon Sep 17 00:00:00 2001
From: NoName11234 <47484268+NoName11234@users.noreply.github.com>
Date: Wed, 15 May 2024 15:45:07 +0200
Subject: [PATCH] implemented scalark2test

---
 src/test/java/UnifyTest.java | 598 ++++++++++++++++++++++++++++++++++-
 1 file changed, 597 insertions(+), 1 deletion(-)

diff --git a/src/test/java/UnifyTest.java b/src/test/java/UnifyTest.java
index 6f75a89..4f7d453 100644
--- a/src/test/java/UnifyTest.java
+++ b/src/test/java/UnifyTest.java
@@ -81,5 +81,601 @@ public class UnifyTest {
         Set<Set<UnifyPair>> solution = unifyAlgo.unify(undConstraints, oderConstraints, finiteClosure, new NullWriter(), false, urm, tasks);
         System.out.println(solution.size());
         //System.out.println(solution);
-    }}
+    }
+
+    @Test
+    public void basicMatrixTest(){
+        UnifyType type1;
+        UnifyType type2;
+        Set<UnifyPair> undConstraints = new HashSet<>();
+
+        //und-constraints
+        //Matrix <. ret
+        type1 = new ReferenceType("Matrix");
+        type2 = new PlaceholderType("ret");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //Integer <. i
+        type1 = new ReferenceType("Integer");
+        type2 = new PlaceholderType("i");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //Matrix <. Vector<x?>
+        type1 = new ReferenceType("Matrix");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("x")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //x? <. v1
+        type1 = new PlaceholderType("x");
+        type2 = new PlaceholderType("v1");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //i <. Integer
+        type1 = new PlaceholderType("i");
+        type2 = new ReferenceType("Integer");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //Vector<Integer> <. v2
+        type1 = new ReferenceType("Vector", new TypeParams(new ReferenceType("Integer")));
+        type2 = new PlaceholderType("v2");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //v1 <. Vector<y?>
+        type1 = new PlaceholderType("v1");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("y")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //m <. Vector<z?>
+        type1 = new PlaceholderType("m");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("z")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //z? <. zr
+        type1 = new PlaceholderType("z");
+        type2 = new PlaceholderType("zr");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //zr <. Vector<z2?>
+        type1 = new PlaceholderType("zr");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("z2")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //z2? <. z2r
+        type1 = new PlaceholderType("z2");
+        type2 = new PlaceholderType("z2r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //z2r <. Integer
+        type1 = new PlaceholderType("z2r");
+        type2 = new ReferenceType("Integer");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //v1 <. Vector<y2?>
+        type1 = new PlaceholderType("v1");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("y2")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //y2? <. y2r
+        type1 = new PlaceholderType("y2");
+        type2 = new PlaceholderType("y2r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //y2r <. Integer
+        type1 = new PlaceholderType("y2r");
+        type2 = new ReferenceType("Integer");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //v2 <. Vector<x3?>
+        type1 = new PlaceholderType("v2");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("x3")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //x3? <. x3r
+        type1 = new PlaceholderType("x3");
+        type2 = new PlaceholderType("x3r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //Integer <. x3r
+        type1 = new ReferenceType("Integer");
+        type2 = new PlaceholderType("x3r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //ret <. Vector<x2?>
+        type1 = new PlaceholderType("ret");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("x2")));
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //x2? <. x2r
+        type1 = new PlaceholderType("x2");
+        type2 = new PlaceholderType("x2r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //v2 <. x2r
+        type1 = new PlaceholderType("v2");
+        type2 = new PlaceholderType("x2r");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+
+        //oder-constraints
+        List<Set<Constraint<UnifyPair>>> oderConstraints = new ArrayList<>();
+
+        //FiniteClosure
+        Set<UnifyPair> constraints = new HashSet<>();
+        //Matrix extends Vector<Vector<Integer>>
+        type1 = new ReferenceType("Matrix");
+        type2 = new ReferenceType("Vector", new TypeParams(new ReferenceType("Vector", new TypeParams(new ReferenceType("Integer")))));
+        constraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Vector<X> extends Object
+        type1 = new ReferenceType("Vector", new TypeParams(new ReferenceType("X")));
+        type2 = new ReferenceType("Object");
+        constraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Integer extends Object
+        type1 = new ReferenceType("Integer");
+        type2 = new ReferenceType("Object");
+        constraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        FiniteClosure finiteClosure = new FiniteClosure(constraints, new NullWriter());
+
+        TypeUnify unifyAlgo = new TypeUnify();
+        ConstraintSet< Pair> cons = new ConstraintSet<>();
+        UnifyResultModel urm = new UnifyResultModel(cons, finiteClosure);
+        UnifyTaskModel tasks = new UnifyTaskModel();
+        Set<Set<UnifyPair>> solution = unifyAlgo.unify(undConstraints, oderConstraints, finiteClosure, new NullWriter(), false, urm, tasks);
+        System.out.println(solution.size());
+    }
+
+    @Test
+    public void scalark2(){
+        UnifyType type1;
+        UnifyType type2;
+
+        //und-constraints
+        Set<UnifyPair> undConstraints = new HashSet<>();
+        //H =. Scalar
+        type1 = new PlaceholderType("H");
+        type2 = new ReferenceType("Scalar");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <!=. java.lang.Number
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Number");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERNEQDOT));
+        //C =. A
+        type1 = new PlaceholderType("H");
+        type2 = new PlaceholderType("A");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //L =. Scalar
+        type1 = new PlaceholderType("L");
+        type2 = new ReferenceType("Scalar");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //D <. C
+        type1 = new PlaceholderType("D");
+        type2 = new PlaceholderType("C");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //java.lang.Boolean =. G
+        type1 = new ReferenceType("java.lang.Boolean");
+        type2 = new PlaceholderType("G");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //G =. java.lang.Boolean
+        type1 = new PlaceholderType("G");
+        type2 = new ReferenceType("java.lang.Boolean");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //V <. C
+        type1 = new PlaceholderType("V");
+        type2 = new PlaceholderType("C");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //F <. E
+        type1 = new PlaceholderType("F");
+        type2 = new PlaceholderType("E");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //X <. E
+        type1 = new PlaceholderType("X");
+        type2 = new PlaceholderType("E");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //J <!=. java.lang.Number
+        type1 = new PlaceholderType("J");
+        type2 = new ReferenceType("java.lang.Number");
+        undConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLERNEQDOT));
+
+        //oder-constraints
+        List<Set<Constraint<UnifyPair>>> oderConstraints = new ArrayList<>();
+        Set<Constraint<UnifyPair>> constraints = new HashSet<>();
+        Constraint<UnifyPair> constraint = new Constraint<>();
+
+        //set #1
+        //D =. java.lang.Float
+        type1 = new PlaceholderType("D");
+        type2 = new ReferenceType("java.lang.Boolean");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //D =. java.lang.Integer
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("D");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #2
+        constraints = new HashSet<>();
+        //F =. java.lang.Integer
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("F");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //F =. java.lang.Float
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("F");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #3
+        constraints = new HashSet<>();
+        //H =. ? extends Scalar
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("H");
+        type2 = new ExtendsType(new ReferenceType("Scalar"));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //java.lang.Integer =. J
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("J");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //H =. Vector<AJP>
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("H");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJP")));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //java.lang.Integer =. J
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("J");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //H =. ? extends Vector<AJP>
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("H");
+        type2 = new ExtendsType(new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJP"))));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //java.lang.Integer =. J
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("J");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //H =. Scalar
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("H");
+        type2 = new ReferenceType("Scalar");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //java.lang.Integer =. J
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("J");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #4
+        constraints = new HashSet<>();
+        //java.lang.Integer =. O
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("O");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //L =. Scalar
+        type1 = new PlaceholderType("L");
+        type2 = new ReferenceType("Scalar");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        //E <. java.lang.Integer
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //L =. ? extends Vector<AJQ>
+        type1 = new PlaceholderType("L");
+        type2 = new ExtendsType(new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJQ"))));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //AJQ =. O
+        type1 = new PlaceholderType("AJQ");
+        type2 = new PlaceholderType("O");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //java.lang.Integer =. O
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("O");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //L =. ? extends Scalar
+        type1 = new PlaceholderType("L");
+        type2 = new ExtendsType(new ReferenceType("Scalar"));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //L =. Vector<AJQ>
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("L");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJQ")));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //AJQ =. O
+        type1 = new PlaceholderType("AJQ");
+        type2 = new PlaceholderType("O");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #5
+        constraints = new HashSet<>();
+        //AJR =. S
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("AJR");
+        type2 = new PlaceholderType("S");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //B =. Vector<AJR>
+        type1 = new PlaceholderType("B");
+        type2 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJR")));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //java.lang.Integer =. S
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("S");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //B =. Scalar
+        type1 = new PlaceholderType("B");
+        type2 = new ReferenceType("Scalar");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //java.lang.Integer =. S
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("S");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //B =. ? extends Scalar
+        type1 = new PlaceholderType("B");
+        type2 = new ExtendsType(new ReferenceType("Scalar"));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        //AJR =. S
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("AJR");
+        type2 = new PlaceholderType("S");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //B =. ? extends Vector<AJR>
+        type1 = new PlaceholderType("B");
+        type2 = new ExtendsType(new ReferenceType("Vector", new TypeParams(new PlaceholderType("AJR"))));
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #6
+        constraints = new HashSet<>();
+        //O <. java.lang.Float
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("O");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //java.lang.Float =. U
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new PlaceholderType("U");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //S <. java.lang.Float
+        type1 = new PlaceholderType("S");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        //java.lang.Integer =. U
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("U");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //S <. java.lang.Integer
+        type1 = new PlaceholderType("S");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //O <. java.lang.Integer
+        type1 = new PlaceholderType("O");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #7
+        constraints = new HashSet<>();
+        //java.lang.Integer =. V
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("V");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //U <. java.lang.Integer
+        type1 = new PlaceholderType("U");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //C <. java.lang.Integer
+        type1 = new PlaceholderType("C");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        //java.lang.Float =. V
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new PlaceholderType("V");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //U <. java.lang.Float
+        type1 = new PlaceholderType("U");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //C <. java.lang.Float
+        type1 = new PlaceholderType("C");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #8
+        constraints = new HashSet<>();
+        //W =. java.lang.Float
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("W");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        //W =. java.lang.Integer
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("W");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+        //set #9
+        constraints = new HashSet<>();
+        //W <. java.lang.Integer
+        constraint = new Constraint<>();
+        type1 = new PlaceholderType("W");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //E <. java.lang.Integer
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Integer");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //java.lang.Integer =. X
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new PlaceholderType("X");
+        constraints.add(constraint);
+        //java.lang.Float =. X
+        constraint = new Constraint<>();
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new PlaceholderType("X");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.EQUALSDOT));
+        //E <. java.lang.Float
+        type1 = new PlaceholderType("E");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        //W <. java.lang.Float
+        type1 = new PlaceholderType("W");
+        type2 = new ReferenceType("java.lang.Float");
+        constraint.add(new UnifyPair(type1, type2, PairOperator.SMALLERDOT));
+        constraints.add(constraint);
+        oderConstraints.add(constraints);
+
+
+        //FiniteClosure
+        Set<UnifyPair> fcConstraints = new HashSet<>();
+        //java.lang.Number < java.lang.Object
+        type1 = new ReferenceType("java.lang.Number");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Number < java.io.Serializable
+        type1 = new ReferenceType("java.lang.Number");
+        type2 = new ReferenceType("java.io.Serializable");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.lang.Number
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new ReferenceType("java.lang.Number");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.lang.Number
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.Number");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.lang.Object
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.lang.constant.Constable
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.constant.Constable");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.io.Serializable
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.io.Serializable");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.lang.constant.ConstantDesc
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.constant.ConstantDesc");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Integer < java.lang.Comparable<java.lang.Integer>
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.Comparable", new TypeParams(new ReferenceType("java.lang.Integer")));
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.lang.Object
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.lang.constant.Constable
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new ReferenceType("java.lang.constant.Constable");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.io.Serializable
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new ReferenceType("java.io.Serializable");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.lang.Comparable<java.lang.Float>
+        type1 = new ReferenceType("java.lang.Integer");
+        type2 = new ReferenceType("java.lang.Comparable", new TypeParams(new ReferenceType("java.lang.Float")));
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Float < java.lang.constant.ConstantDesc
+        type1 = new ReferenceType("java.lang.Float");
+        type2 = new ReferenceType("java.lang.constant.ConstantDesc");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Scalar<EYW> < java.lang.Object
+        type1 = new ReferenceType("Scalar", new TypeParams(new PlaceholderType("EYW")));
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Scalar<EYW> < Vector<java.lang.Integer>
+        type1 = new ReferenceType("Scalar", new TypeParams(new PlaceholderType("EYW")));
+        type2 = new ReferenceType("Vector", new TypeParams(new ReferenceType("java.lang.Integer")));
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Comparable<java.lang.Float> < java.lang.Object
+        type1 = new ReferenceType("java.lang.Comparable", new TypeParams(new ReferenceType("java.lang.Float")));
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Vector<java.lang.Integer> < java.lang.Object
+        type1 = new ReferenceType("Vector", new TypeParams(new ReferenceType("java.lang.Integer")));
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Scalar < Vector<java.lang.Integer>
+        type1 = new ReferenceType("Scalar");
+        type2 = new ReferenceType("Vector", new TypeParams(new ReferenceType("java.lang.Integer")));
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.constant.ConstantDesc < java.lang.Object
+        type1 = new ReferenceType("java.lang.constant.ConstantDesc");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Scalar < java.lang.Object
+        type1 = new ReferenceType("Scalar");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.constant.Constable < java.lang.Object
+        type1 = new ReferenceType("java.lang.constant.Constable");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //Vector<EWV> < java.lang.Object
+        type1 = new ReferenceType("Vector", new TypeParams(new PlaceholderType("EWV")));
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.io.Serializable < java.lang.Object
+        type1 = new ReferenceType("java.io.Serializable");
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+        //java.lang.Comparable<java.lang.Integer> < java.lang.Object
+        type1 = new ReferenceType("java.lang.Comparable", new TypeParams(new ReferenceType("java.lang.Integer")));
+        type2 = new ReferenceType("java.lang.Object");
+        fcConstraints.add(new UnifyPair(type1, type2, PairOperator.SMALLER));
+
+        FiniteClosure finiteClosure = new FiniteClosure(fcConstraints, new NullWriter());
+        TypeUnify unifyAlgo = new TypeUnify();
+        ConstraintSet< Pair> cons = new ConstraintSet<>();
+        UnifyResultModel urm = new UnifyResultModel(cons, finiteClosure);
+        UnifyTaskModel tasks = new UnifyTaskModel();
+        Set<Set<UnifyPair>> solution = unifyAlgo.unify(undConstraints, oderConstraints, finiteClosure, new NullWriter(), false, urm, tasks);
+        System.out.println(solution);
+        System.out.println(solution.size());
+    }
+}