I have problem with class that creates rectangle based on a test

Ok so i have rectangle that should be created based on: method point that will crete coordinates of it center and values of hight and width, all value are based on this test

public void testRectangle1() {
Point center = new Point(20, 30);
Rectangle rect = new Rectangle(center, 20, 20);
assertAll(
() -> assertEquals(10, rect.getTopLeft().getX()),
() -> assertEquals(20, rect.getTopLeft().getY()),
() -> assertEquals(30, rect.getBottomRight().getX()),
() -> assertEquals(40, rect.getBottomRight().getY()),
() -> assertEquals(20, rect.getWidth()),
() -> assertEquals(20, rect.getHeight())
);
}

I have prewritten class point that i will add here for overall clarity

package net.thumbtack.school.figures.v1;
public class Point {
private int x, y;
public Point(int x, int y) {
this.x = x;
this.y = y;
}
public Point() {
this(0, 0);
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public void moveTo(int newX, int newY) {
x = newX;
y = newY;
}
public void moveRel(int dx, int dy) {
x += dx;
y += dy;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + x;
result = prime * result + y;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Point other = (Point) obj;
if (x != other.x)
return false;
if (y != other.y)
return false;
return true;
}
}

And this is class for creating rectangle

package net.thumbtack.school.figures.v1;
public class Rectangle {
public int width;
public int height;
public Point center;
public int xCenter;
public int yCenter;
private Point point;
public Rectangle(Point center, int width, int height) {
this.width=width;
this.height=height;
this.center=center;
}
public Point getTopLeft() {
Point point = getCenter();
point.moveRel(- width / 2, - height / 2);
return point;
}
public Point getBottomRight() {
Point point = getCenter();
point.moveRel(width / 2,  height / 2);
return point;
}
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
public Point getCenter() {
Point center = new Point(xCenter, yCenter);
return center;
}

So problem is in constructor public Rectangle(Point center, int width, int height) when i run the test it returns wirng values

expected: <10> but was: <-10>
Comparison Failure:
Expected :10
Actual :-10

expected: <20> but was: <-10>
Comparison Failure:
Expected :20
Actual :-10

expected: <30> but was: <10>
Comparison Failure:
Expected :30
Actual :10

expected: <40> but was: <10>
Comparison Failure:
Expected :40
Actual :10

I dont this that the problem is into other methods becouse when i use them in different but simmilar constrictors everything works.

As maloomeister mentioned you must init xCenter or yCenter before used，or the value of xCenter and yCenter is 0.

modify getCenter() method:

public Point getCenter() {
Point point = new Point(center.getX(), center.getY());
return point;
}