Port remaining tests from Cassowary project
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@ -15,34 +15,31 @@ public class Tests {
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Variable x = new Variable("x");
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solver.addConstraint(Symbolics.equals(Symbolics.add(x,2), 20));
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solver.addConstraint(Symbolics.equals(Symbolics.add(x, 2), 20));
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solver.updateVariables();
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assertEquals(x.getValue(), 18, EPSILON);
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}
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@Test
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public void simple0() throws UnsatisfiableConstraintException, DuplicateConstraintException {
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Solver solver = new Solver();
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Variable x = new Variable("x");
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Variable y = new Variable("y");
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// x = 20
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solver.addConstraint(Symbolics.equals(x, 20));
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// x + 2 == y + 10
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//
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solver.addConstraint(Symbolics.equals(Symbolics.add(x,2), Symbolics.add(y, 10)));
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solver.addConstraint(Symbolics.equals(Symbolics.add(x, 2), Symbolics.add(y, 10)));
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solver.updateVariables();
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System.out.println("x " + x.getValue() + " y " + y.getValue());
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assertEquals(y.getValue(), 12, EPSILON);
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assertEquals(x.getValue(), 20, EPSILON);
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}
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@Test
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public void simple1() throws DuplicateConstraintException, UnsatisfiableConstraintException {
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Variable x = new Variable("x");
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@ -65,7 +62,7 @@ public class Tests {
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solver.addConstraint(Symbolics.equals(y, 10.0).setStrength(Strength.WEAK));
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solver.updateVariables();
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if (Math.abs(x.getValue() - 10.0) < EPSILON) {
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assertEquals(10, x.getValue(), EPSILON);
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assertEquals(13, y.getValue(), EPSILON);
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@ -75,105 +72,122 @@ public class Tests {
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}
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}
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/*@Test
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public void addDelete1() {
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@Test
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public void addDelete1() throws DuplicateConstraintException, UnsatisfiableConstraintException, UnknownConstraintException {
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Variable x = new Variable("x");
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Solver solver = new Solver();
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solver.addConstraint(new Constraint(x, Constraint.Operator.EQ, 100, Strength.WEAK));
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solver.addConstraint(Symbolics.lessThanOrEqualTo(x, 100).setStrength(Strength.WEAK));
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Constraint c10 = new Constraint(x, Constraint.Operator.LEQ, 10.0);
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Constraint c20 = new Constraint(x, Constraint.Operator.LEQ, 20.0);
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solver.updateVariables();
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assertEquals(100, x.getValue(), EPSILON);
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Constraint c10 = Symbolics.lessThanOrEqualTo(x, 10.0);
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Constraint c20 = Symbolics.lessThanOrEqualTo(x, 20.0);
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solver.addConstraint(c10);
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solver.addConstraint(c20);
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assertEquals(10, x.value(), EPSILON);
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solver.updateVariables();
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assertEquals(10, x.getValue(), EPSILON);
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solver.removeConstraint(c10);
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assertEquals(20, x.value(), EPSILON);
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solver.updateVariables();
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assertEquals(20, x.getValue(), EPSILON);
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solver.removeConstraint(c20);
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assertEquals(100, x.value(), EPSILON);
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solver.updateVariables();
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Constraint c10again = new Constraint(x, Constraint.Operator.LEQ, 10.0);
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assertEquals(100, x.getValue(), EPSILON);
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Constraint c10again = Symbolics.lessThanOrEqualTo(x, 10.0);
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solver.addConstraint(c10);
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solver.addConstraint(c10again);
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solver.addConstraint(c10);
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solver.updateVariables();
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assertEquals(10, x.value(), EPSILON);
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assertEquals(10, x.getValue(), EPSILON);
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solver.removeConstraint(c10);
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assertEquals(10, x.value(), EPSILON);
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solver.updateVariables();
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assertEquals(10, x.getValue(), EPSILON);
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solver.removeConstraint(c10again);
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assertEquals(100, x.value(), EPSILON);
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solver.updateVariables();
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assertEquals(100, x.getValue(), EPSILON);
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}
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@Test
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public void addDelete2() {
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public void addDelete2() throws DuplicateConstraintException, UnsatisfiableConstraintException, UnknownConstraintException {
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Variable x = new Variable("x");
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Variable y = new Variable("y");
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Solver solver = new Solver();
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solver.addConstraint(new Constraint(x, Constraint.Operator.EQ, 100.0, Strength.WEAK));
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solver.addConstraint(new Constraint(y, Constraint.Operator.EQ, 120.0, Strength.STRONG));
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solver.addConstraint(Symbolics.equals(x, 100).setStrength(Strength.WEAK));
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solver.addConstraint(Symbolics.equals(y, 120).setStrength(Strength.STRONG));
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Constraint c10 = new Constraint(x, Constraint.Operator.LEQ, 10.0);
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Constraint c20 = new Constraint(x, Constraint.Operator.LEQ, 20.0);
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Constraint c10 = Symbolics.lessThanOrEqualTo(x, 10.0);
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Constraint c20 = Symbolics.lessThanOrEqualTo(x, 20.0);
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solver.addConstraint(c10);
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solver.addConstraint(c20);
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solver.updateVariables();
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assertEquals(10, x.value(), EPSILON);
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assertEquals(120, y.value(), EPSILON);
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assertEquals(10, x.getValue(), EPSILON);
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assertEquals(120, y.getValue(), EPSILON);
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solver.removeConstraint(c10);
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assertEquals(20, x.value(), EPSILON);
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assertEquals(120, y.value(), EPSILON);
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solver.updateVariables();
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Constraint cxy = new Constraint(x.times(2.0), Constraint.Operator.EQ, y);
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assertEquals(20, x.getValue(), EPSILON);
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assertEquals(120, y.getValue(), EPSILON);
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Constraint cxy = Symbolics.equals(Symbolics.multiply(x, 2.0), y);
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solver.addConstraint(cxy);
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assertEquals(20, x.value(), EPSILON);
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assertEquals(40, y.value(), EPSILON);
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solver.updateVariables();
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assertEquals(20, x.getValue(), EPSILON);
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assertEquals(40, y.getValue(), EPSILON);
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solver.removeConstraint(c20);
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assertEquals(60, x.value(), EPSILON);
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assertEquals(120, y.value(), EPSILON);
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solver.updateVariables();
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assertEquals(60, x.getValue(), EPSILON);
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assertEquals(120, y.getValue(), EPSILON);
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solver.removeConstraint(cxy);
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assertEquals(100, x.value(), EPSILON);
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assertEquals(120, y.value(), EPSILON);
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solver.updateVariables();
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assertEquals(100, x.getValue(), EPSILON);
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assertEquals(120, y.getValue(), EPSILON);
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}
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@Test(expected = RequiredFailure.class)
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public void inconsistent1() throws InternalError {
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@Test(expected = UnsatisfiableConstraintException.class)
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public void inconsistent1() throws InternalError, DuplicateConstraintException, UnsatisfiableConstraintException {
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Variable x = new Variable("x");
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Solver solver = new Solver();
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solver.addConstraint(new Constraint(x, Constraint.Operator.EQ, 10.0));
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solver.addConstraint(new Constraint(x, Constraint.Operator.EQ, 5.0));
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solver.addConstraint(Symbolics.equals(x, 10.0));
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solver.addConstraint(Symbolics.equals(x, 5.0));
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solver.updateVariables();
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}
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@Test(expected = RequiredFailure.class)
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public void inconsistent2() {
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@Test(expected = UnsatisfiableConstraintException.class)
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public void inconsistent2() throws DuplicateConstraintException, UnsatisfiableConstraintException {
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Variable x = new Variable("x");
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Solver solver = new Solver();
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solver.addConstraint(new Constraint(x, Constraint.Operator.GEQ, 10.0));
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solver.addConstraint(new Constraint(x, Constraint.Operator.LEQ, 5.0));
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(x, 10.0));
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solver.addConstraint(Symbolics.lessThanOrEqualTo(x, 5.0));
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solver.updateVariables();
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}
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@Test(expected = RequiredFailure.class)
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public void inconsistent3() {
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@Test(expected = UnsatisfiableConstraintException.class)
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public void inconsistent3() throws DuplicateConstraintException, UnsatisfiableConstraintException {
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Variable w = new Variable("w");
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Variable x = new Variable("x");
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@ -181,12 +195,13 @@ public class Tests {
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Variable z = new Variable("z");
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Solver solver = new Solver();
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solver.addConstraint(new Constraint(w, Constraint.Operator.GEQ, 10.0));
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solver.addConstraint(new Constraint(x, Constraint.Operator.GEQ, w));
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solver.addConstraint(new Constraint(y, Constraint.Operator.GEQ, x));
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solver.addConstraint(new Constraint(z, Constraint.Operator.GEQ, y));
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solver.addConstraint(new Constraint(z, Constraint.Operator.GEQ, 8.0));
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solver.addConstraint(new Constraint(z, Constraint.Operator.LEQ, 4.0));
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}*/
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(w, 10.0));
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(x, w));
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(y, x));
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(z, y));
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solver.addConstraint(Symbolics.greaterThanOrEqualTo(z, 8.0));
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solver.addConstraint(Symbolics.lessThanOrEqualTo(z, 4.0));
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solver.updateVariables();
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}
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}
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