public void ConstraintConstructor() {
Solver solver = new Solver("Solver");
IntVar x = solver.MakeIntVar(3, 7, "x");
Assert.Equal("x(3..7)", x.ToString());
// Unary operator
Constraint c0 = (x == 5);
Assert.Equal("(x(3..7) == 5)", c0.ToString());
IntExpr e1 = -c0;
Assert.Equal("-(Watch<x == 5>(0 .. 1))", e1.ToString());
IntExpr e2 = c0.Abs();
Assert.Equal("Watch<x == 5>(0 .. 1)", e2.ToString());
IntExpr e3 = c0.Square();
Assert.Equal("IntSquare(Watch<x == 5>(0 .. 1))", e3.ToString());
// Relational operator with a scalar
Constraint c1 = x == 5;
Assert.Equal("(x(3..7) == 5)", c1.ToString());
Constraint c2 = x >= 5;
Assert.Equal("(x(3..7) >= 5)", c2.ToString());
Constraint c3 = x > 5;
Assert.Equal("(x(3..7) >= 6)", c3.ToString());
Constraint c4 = x <= 5;
Assert.Equal("(x(3..7) <= 5)", c4.ToString());
Constraint c5 = x < 5;
Assert.Equal("(x(3..7) <= 4)", c5.ToString());
Constraint c6 = x != 5;
Assert.Equal("(x(3..7) != 5)", c6.ToString());
Constraint c7 = x == 2;
Assert.Equal("FalseConstraint()", c7.ToString());
}
static void ConstraintWithExprTest()
{
Console.WriteLine("TestConstraintWithExpr");
Solver solver = new Solver("test");
IntVar x = solver.MakeIntVar(0, 10, "x");
IntVar y = solver.MakeIntVar(0, 10, "y");
Constraint c1 = x == 2;
Constraint c2 = y == 3;
IntExpr e2a = c1 + 1;
Console.WriteLine(e2a.ToString());
IntExpr e2b = 1 + c1;
Console.WriteLine(e2b.ToString());
IntExpr e2c = c1 - 1;
Console.WriteLine(e2c.ToString());
IntExpr e2d = 1 - c1;
Console.WriteLine(e2d.ToString());
IntExpr e2e = c1 * 2;
Console.WriteLine(e2e.ToString());
IntExpr e2f = 2 * c1;
Console.WriteLine(e2f.ToString());
IntExpr e3a = c1 + y;
Console.WriteLine(e3a.ToString());
IntExpr e3b = y + c1;
Console.WriteLine(e3b.ToString());
IntExpr e3c = c1 - y;
Console.WriteLine(e3c.ToString());
IntExpr e3d = y - c1;
Console.WriteLine(e3d.ToString());
IntExpr e3e = c1 * y;
Console.WriteLine(e3e.ToString());
IntExpr e3f = y * c1;
Console.WriteLine(e3f.ToString());
IntExpr e4 = -c1;
Console.WriteLine(e4.ToString());
IntExpr e5 = c1 / 4;
Console.WriteLine(e5.ToString());
IntExpr e6 = c1.Abs();
Console.WriteLine(e6.ToString());
IntExpr e7 = c1.Square();
Console.WriteLine(e7.ToString());
Constraint c8a = c1 == 1;
Console.WriteLine(c8a.ToString());
Constraint c8b = 1 == c1;
Console.WriteLine(c8b.ToString());
Constraint c8c = c1 != 1;
Console.WriteLine(c8c.ToString());
Constraint c8d = 1 != c1;
Console.WriteLine(c8d.ToString());
Constraint c8e = c1 >= 1;
Console.WriteLine(c8e.ToString());
Constraint c8f = 1 >= c1;
Console.WriteLine(c8f.ToString());
Constraint c8g = c1 > 1;
Console.WriteLine(c8g.ToString());
Constraint c8h = 1 > c1;
Console.WriteLine(c8h.ToString());
Constraint c8i = c1 <= 1;
Console.WriteLine(c8i.ToString());
Constraint c8j = 1 <= c1;
Console.WriteLine(c8j.ToString());
Constraint c8k = c1 < 1;
Console.WriteLine(c8k.ToString());
Constraint c8l = 1 < c1;
Console.WriteLine(c8l.ToString());
Constraint c9a = c1 == y;
Console.WriteLine(c9a.ToString());
Constraint c9b = y == c1;
Console.WriteLine(c9b.ToString());
Constraint c9c = c1 != y;
Console.WriteLine(c9c.ToString());
Constraint c9d = y != c1;
Console.WriteLine(c9d.ToString());
Constraint c9e = c1 >= y;
Console.WriteLine(c9e.ToString());
Constraint c9f = y >= c1;
Console.WriteLine(c9f.ToString());
Constraint c9g = c1 > y;
Console.WriteLine(c9g.ToString());
Constraint c9h = y > c1;
Console.WriteLine(c9h.ToString());
Constraint c9i = c1 <= y;
Console.WriteLine(c9i.ToString());
Constraint c9j = y <= c1;
Console.WriteLine(c9j.ToString());
Constraint c9k = c1 < y;
Console.WriteLine(c9k.ToString());
Constraint c9l = y < c1;
Console.WriteLine(c9l.ToString());
Constraint c10a = c1 == c2;
Console.WriteLine(c10a.ToString());
Constraint c10c = c1 != c2;
Console.WriteLine(c10c.ToString());
Constraint c10e = c1 >= c2;
Console.WriteLine(c10e.ToString());
Constraint c10g = c1 > c2;
Console.WriteLine(c10g.ToString());
Constraint c10i = c1 <= c2;
Console.WriteLine(c10i.ToString());
Constraint c10k = c1 < c2;
Console.WriteLine(c10k.ToString());
IntExpr e11a = c1 + (y == 2);
Console.WriteLine(e11a.ToString());
IntExpr e11b = (y == 2) + c1;
Console.WriteLine(e11b.ToString());
IntExpr e11c = c1 - (y == 2);
Console.WriteLine(e11c.ToString());
IntExpr e11d = (y == 2) - c1;
Console.WriteLine(e11d.ToString());
IntExpr e11e = c1 * (y == 2);
Console.WriteLine(e11e.ToString());
IntExpr e11f = (y == 2) * c1;
Console.WriteLine(e11f.ToString());
Constraint c12a = c1 == (y == 2);
Console.WriteLine(c12a.ToString());
Constraint c12b = (y == 2) == c1;
Console.WriteLine(c12b.ToString());
Constraint c12c = c1 != (y == 2);
Console.WriteLine(c12c.ToString());
Constraint c12d = (y == 2) != c1;
Console.WriteLine(c12d.ToString());
Constraint c12e = c1 >= (y == 2);
Console.WriteLine(c12e.ToString());
Constraint c12f = (y == 2) >= c1;
Console.WriteLine(c12f.ToString());
Constraint c12g = c1 > (y == 2);
Console.WriteLine(c12g.ToString());
Constraint c12h = (y == 2) > c1;
Console.WriteLine(c12h.ToString());
Constraint c12i = c1 <= (y == 2);
Console.WriteLine(c12i.ToString());
Constraint c12j = (y == 2) <= c1;
Console.WriteLine(c12j.ToString());
Constraint c12k = c1 < (y == 2);
Console.WriteLine(c12k.ToString());
Constraint c12l = (y == 2) < c1;
Console.WriteLine(c12l.ToString());
}
