workflow/node_modules/@antv/x6-geometry/lib/__tests__/point.test.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const __1 = require("..");
describe('Point', () => {
    describe('#constructor', () => {
        it('should create a point instance', () => {
            expect(new __1.Point()).toBeInstanceOf(__1.Point);
            expect(new __1.Point(1)).toBeInstanceOf(__1.Point);
            expect(new __1.Point(1, 2)).toBeInstanceOf(__1.Point);
            expect(new __1.Point(1, 2).x).toEqual(1);
            expect(new __1.Point(1, 2).y).toEqual(2);
            expect(new __1.Point().equals(new __1.Point(0, 0)));
        });
    });
    describe('#Point.random', () => {
        it('should create random point', () => {
            const p = __1.Point.random(1, 5, 2, 6);
            expect(p.x >= 1 && p.x <= 5).toBe(true);
            expect(p.y >= 2 && p.y <= 6).toBe(true);
        });
    });
    describe('#Point.isPoint', () => {
        it('should return true when the given object a point instance', () => {
            expect(__1.Point.isPoint(new __1.Point())).toBeTruthy();
            expect(__1.Point.isPoint(new __1.Point(1, 1))).toBeTruthy();
        });
        it('should return false when the given object is not a point instance', () => {
            expect(__1.Point.isPoint({ x: 1, y: 1 })).toBeFalsy();
        });
    });
    describe('#Point.isPointLike', () => {
        it('should return true when the given object is a point-like object', () => {
            expect(__1.Point.isPointLike({ x: 1, y: 2 })).toBeTruthy();
            expect(__1.Point.isPointLike({ x: 1, y: 2, z: 10 })).toBeTruthy();
            expect(__1.Point.isPointLike({ x: 1, y: 2, z: 10, s: 's' })).toBeTruthy();
        });
        it('should return false when the given object is a point-like object', () => {
            expect(__1.Point.isPointLike({ x: 1 })).toBeFalsy();
            expect(__1.Point.isPointLike({ y: 2 })).toBeFalsy();
            expect(__1.Point.isPointLike({})).toBeFalsy();
            expect(__1.Point.isPointLike(null)).toBeFalsy();
            expect(__1.Point.isPointLike(false)).toBeFalsy();
            expect(__1.Point.isPointLike(1)).toBeFalsy();
            expect(__1.Point.isPointLike('s')).toBeFalsy();
        });
    });
    describe('#Point.isPointData', () => {
        it('should return true when the given object is a point-data array', () => {
            expect(__1.Point.isPointData([1, 2])).toBeTruthy();
        });
        it('should return false when the given object is a point-data array', () => {
            expect(__1.Point.isPointData({ x: 1, y: 2 })).toBeFalsy();
            expect(__1.Point.isPointData([1])).toBeFalsy();
            expect(__1.Point.isPointData([1, 2, 3])).toBeFalsy();
            expect(__1.Point.isPointData(null)).toBeFalsy();
            expect(__1.Point.isPointData(false)).toBeFalsy();
            expect(__1.Point.isPointData(1)).toBeFalsy();
            expect(__1.Point.isPointData('s')).toBeFalsy();
        });
    });
    describe('#Point.toJSON', () => {
        it('should conver the given point to json', () => {
            expect(__1.Point.toJSON([1, 2])).toEqual({ x: 1, y: 2 });
            expect(__1.Point.toJSON({ x: 1, y: 2 })).toEqual({ x: 1, y: 2 });
            expect(__1.Point.toJSON(new __1.Point(1, 2))).toEqual({ x: 1, y: 2 });
        });
    });
    describe('#Point.equals', () => {
        it('should return true when the given two points are equal', () => {
            const p1 = new __1.Point(1, 2);
            expect(__1.Point.equals(p1, p1)).toBeTruthy();
            expect(__1.Point.equals(p1, { x: 1, y: 2 })).toBeTruthy();
        });
        it('should return false when the given two points are not equal', () => {
            const p1 = new __1.Point(1, 2);
            const p2 = new __1.Point(2, 2);
            expect(__1.Point.equals(p1, p2)).toBeFalsy();
            expect(__1.Point.equals(p1, null)).toBeFalsy();
            expect(__1.Point.equals(p1, { x: 2, y: 2 })).toBeFalsy();
        });
    });
    describe('#Point.equalPoints', () => {
        it('should return true when the given points array are equal', () => {
            const p1 = new __1.Point(1, 2);
            expect(__1.Point.equalPoints([p1], [p1])).toBeTruthy();
            expect(__1.Point.equalPoints([p1], [{ x: 1, y: 2 }])).toBeTruthy();
        });
        it('should return false when the given points array are not equal', () => {
            const p1 = new __1.Point(1, 2);
            const p2 = new __1.Point(2, 2);
            expect(__1.Point.equalPoints([p1], [p2])).toBeFalsy();
            expect(__1.Point.equalPoints(null, [p2])).toBeFalsy();
            expect(__1.Point.equalPoints([p1], null)).toBeFalsy();
            expect(__1.Point.equalPoints([p1, p2], [p2])).toBeFalsy();
            expect(__1.Point.equalPoints([p1, p2], [p2, p1])).toBeFalsy();
            expect(__1.Point.equalPoints([p1], [{ x: 2, y: 2 }])).toBeFalsy();
        });
    });
    describe('#round', () => {
        it('should round x and y properties to the given precision', () => {
            const point = new __1.Point(17.231, 4.01);
            point.round(2);
            expect(point.serialize()).toEqual('17.23 4.01');
            point.round(0);
            expect(point.serialize()).toEqual('17 4');
        });
    });
    describe('#add', () => {
        it('should add x and y width the given amount', () => {
            const source = new __1.Point(4, 17);
            const target = new __1.Point(20, 20);
            expect(source.clone().add(16, 3)).toEqual(target);
            expect(source.clone().add([16, 3])).toEqual(target);
            expect(source.clone().add({ x: 16, y: 3 })).toEqual(target);
        });
    });
    describe('#update', () => {
        it('should update the values of x and y', () => {
            const source = new __1.Point(4, 17);
            const target = new __1.Point(16, 24);
            expect(source.clone().update(16, 24)).toEqual(target);
            expect(source.clone().update([16, 24])).toEqual(target);
            expect(source.clone().update({ x: 16, y: 24 })).toEqual(target);
            expect(source.clone().update(target)).toEqual(target);
        });
    });
    describe('#translate', () => {
        it('should translate x and y by adding the given dx and dy values respectively', () => {
            const point = new __1.Point(0, 0);
            point.translate(2, 3);
            expect(point.toJSON()).toEqual({ x: 2, y: 3 });
            point.translate(new __1.Point(-2, 4));
            expect(point.toJSON()).toEqual({ x: 0, y: 7 });
        });
    });
    describe('#rotate', () => {
        const rotate = (p, angle, center) => p.clone().rotate(angle, center).round(3).serialize();
        it('should return a rotated version of self', () => {
            const point = new __1.Point(5, 5);
            let angle;
            const zeroPoint = new __1.Point(0, 0);
            const arbitraryPoint = new __1.Point(14, 6);
            angle = 0;
            expect(rotate(point, angle)).toEqual('5 5');
            expect(rotate(point, angle, zeroPoint)).toEqual('5 5');
            expect(rotate(point, angle, point)).toEqual('5 5');
            expect(rotate(point, angle, arbitraryPoint)).toEqual('5 5');
            angle = 154;
            expect(rotate(point, angle)).toEqual('-2.302 -6.686');
            expect(rotate(point, angle, zeroPoint)).toEqual('-2.302 -6.686');
            expect(rotate(point, angle, point)).toEqual('5 5');
            expect(rotate(point, angle, arbitraryPoint)).toEqual('21.651 10.844');
        });
    });
    describe('#scale', () => {
        it('should scale point with the given amount', () => {
            expect(new __1.Point(20, 30).scale(2, 3)).toEqual(new __1.Point(40, 90));
        });
        it('should scale point with the given amount and center ', () => {
            expect(new __1.Point(20, 30).scale(2, 3, new __1.Point(40, 45))).toEqual(new __1.Point(0, 0));
        });
    });
    describe('#closest', () => {
        it('should return the closest point', () => {
            const a = new __1.Point(10, 10);
            const b = { x: 20, y: 20 };
            const c = { x: 30, y: 30 };
            expect(a.closest([])).toBeNull();
            expect(a.closest([b])).toBeInstanceOf(__1.Point);
            expect(a.closest([b]).toJSON()).toEqual(b);
            expect(a.closest([b, c]).toJSON()).toEqual(b);
            expect(a.closest([b, c]).toJSON()).toEqual(b);
        });
    });
    describe('#distance', () => {
        it('should return the distance between me and the given point', () => {
            const source = new __1.Point(1, 2);
            const target = new __1.Point(4, 6);
            expect(source.distance(target)).toEqual(5);
        });
    });
    describe('#squaredDistance', () => {
        it('should return the squared distance between me and the given point', () => {
            const source = new __1.Point(1, 2);
            const target = new __1.Point(4, 6);
            expect(source.squaredDistance(target)).toEqual(25);
        });
    });
    describe('#manhattanDistance', () => {
        it('should return the manhattan distance between me and the given point', () => {
            const source = new __1.Point(1, 2);
            const target = new __1.Point(4, 6);
            expect(source.manhattanDistance(target)).toEqual(7);
        });
    });
    describe('#magnitude', () => {
        it('should return the magnitude of the given point', () => {
            expect(new __1.Point(3, 4).magnitude()).toEqual(5);
        });
        it('should return `0.01` when the given point is `{0, 0}`', () => {
            expect(new __1.Point(0, 0).magnitude()).toEqual(0.01);
        });
    });
    describe('#theta', () => {
        it('should return the angle between me and p and the x-axis.', () => {
            const me = new __1.Point(1, 1);
            expect(me.theta(me)).toBe(-0);
            expect(me.theta(new __1.Point(2, 1))).toBe(-0);
            expect(me.theta(new __1.Point(2, 0))).toBe(45);
            expect(me.theta(new __1.Point(1, 0))).toBe(90);
            expect(me.theta(new __1.Point(0, 0))).toBe(135);
            expect(me.theta(new __1.Point(0, 1))).toBe(180);
            expect(me.theta(new __1.Point(0, 2))).toBe(225);
            expect(me.theta(new __1.Point(1, 2))).toBe(270);
            expect(me.theta(new __1.Point(2, 2))).toBe(315);
        });
    });
    describe('#angleBetween', () => {
        it('should returns the angle between vector from me to `p1` and the vector from me to `p2`.', () => {
            const me = new __1.Point(1, 2);
            const p1 = new __1.Point(2, 4);
            const p2 = new __1.Point(4, 3);
            const PRECISION = 10;
            expect(me.angleBetween(me, me)).toBeNaN();
            expect(me.angleBetween(p1, me)).toBeNaN();
            expect(me.angleBetween(me, p2)).toBeNaN();
            expect(me.angleBetween(p1, p2).toFixed(PRECISION)).toBe('45.0000000000');
            expect(me.angleBetween(p2, p1).toFixed(PRECISION)).toBe('315.0000000000');
        });
    });
    describe('#changeInAngle', () => {
        it('should return the change in angle from my previous position `-dx, -dy` to my new position relative to origin point', () => {
            const p = new __1.Point(1, 1);
            expect(p.changeInAngle(1, 0)).toEqual(-45);
        });
        it('should return the change in angle from my previous position `-dx, -dy` to my new position relative to `ref` point', () => {
            const p = new __1.Point(2, 2);
            expect(p.changeInAngle(1, 0, { x: 1, y: 1 })).toEqual(-45);
        });
    });
    describe('#adhereToRect', () => {
        it('should return `p` when `p` is contained in `rect`', () => {
            const p = new __1.Point(2, 2);
            const rect = { x: 1, y: 1, width: 4, height: 4 };
            expect(p.adhereToRect(rect).equals(p)).toBeTruthy();
        });
        it('should adhere to target `rect` when `p` is outside of `rect`', () => {
            const p = new __1.Point(2, 8);
            const rect = { x: 1, y: 1, width: 4, height: 4 };
            expect(p.adhereToRect(rect).equals({ x: 2, y: 5 })).toBeTruthy();
        });
    });
    describe('#bearing', () => {
        it('should return the bearing between me and the given point.', () => {
            const p = new __1.Point(2, 8);
            expect(p.bearing(new __1.Point())).toEqual('S');
        });
    });
    describe('#vectorAngle', () => {
        it('should return the angle between the vector from `0,0` to me and the vector from `0,0` to `p`', () => {
            const p0 = new __1.Point(1, 2);
            const p = new __1.Point(3, 1);
            const zero = new __1.Point(0, 0);
            const PRECISION = 10;
            expect(zero.vectorAngle(zero)).toBeNaN();
            expect(p0.vectorAngle(zero)).toBeNaN();
            expect(p.vectorAngle(zero)).toBeNaN();
            expect(zero.vectorAngle(p0)).toBeNaN();
            expect(zero.vectorAngle(p)).toBeNaN();
            expect(p0.vectorAngle(p).toFixed(PRECISION)).toBe('45.0000000000');
            expect(p.vectorAngle(p0).toFixed(PRECISION)).toBe('315.0000000000');
        });
    });
    describe('#diff', () => {
        it('should return the diff as a point with the given point', () => {
            expect(new __1.Point(0, 10).diff(4, 8)).toEqual(new __1.Point(-4, 2));
            expect(new __1.Point(5, 8).diff({ x: 5, y: 10 })).toEqual(new __1.Point(0, -2));
        });
    });
    describe('#lerp', () => {
        it('should return an interpolation between me and the given point `p`', () => {
            expect(new __1.Point(1, 1).lerp({ x: 3, y: 3 }, 0.5)).toEqual(new __1.Point(2, 2));
        });
    });
    describe('#normalize', () => {
        it('should scale x and y such that the distance between the point and the origin (0,0) is equal to the given length', () => {
            expect(new __1.Point(0, 10).normalize(20).serialize()).toEqual('0 20');
            expect(new __1.Point(2, 0).normalize(4).serialize()).toEqual('4 0');
        });
    });
    describe('#move', () => {
        it('should move the point on a line that leads to another point `ref` by a certain `distance`.', () => {
            expect(new __1.Point(1, 1).move({ x: 1, y: 0 }, 5).round(0)).toEqual(new __1.Point(1, 6));
        });
    });
    describe('#reflection', () => {
        it('should return a point that is the reflection of me with the center of inversion in `ref` point.', () => {
            expect(new __1.Point(1, 0).reflection({ x: 1, y: 1 }).round(0)).toEqual(new __1.Point(1, 2));
        });
    });
    describe('#cross', () => {
        it('should return the cross product of the vector from me to `p1` and the vector from me to `p2`', () => {
            const p0 = new __1.Point(3, 15);
            const p1 = new __1.Point(4, 17);
            const p2 = new __1.Point(2, 10);
            expect(p0.cross(p1, p2)).toBe(3);
            expect(p0.cross(p2, p1)).toBe(-3);
        });
        it('shoule return `NAN` when any of the given point is null', () => {
            expect(new __1.Point().cross(null, new __1.Point(1, 2))).toBeNaN();
        });
    });
    describe('#dot', () => {
        it('should return the dot product of `p`', () => {
            const p1 = new __1.Point(4, 17);
            const p2 = new __1.Point(2, 10);
            expect(p1.dot(p2)).toBe(178);
            expect(p2.dot(p1)).toBe(178);
        });
    });
    describe('#equals', () => {
        it('should return the true when have same coord', () => {
            const p1 = new __1.Point(4, 17);
            const p2 = p1.clone();
            expect(p1.equals(p2)).toBe(true);
        });
    });
    describe('#toJSON', () => {
        it('should return json-object', () => {
            const p1 = new __1.Point(4, 17);
            const p2 = p1.toJSON();
            expect(p1.equals(p2)).toBe(true);
        });
    });
    describe('#toPolar', () => {
        it('should convert rectangular to polar coordinates.', () => {
            const p = new __1.Point(4, 3).toPolar();
            expect(p.x).toBe(5);
        });
    });
    describe('#fromPolar', () => {
        it('should convert polar to rectangular coordinates.', () => {
            const p1 = new __1.Point(4, 3).toPolar();
            const p2 = __1.Point.fromPolar(p1.x, p1.y);
            expect(Math.round(p2.x)).toBe(4);
            expect(Math.round(p2.y)).toBe(3);
            const p3 = new __1.Point(-4, 3).toPolar();
            const p4 = __1.Point.fromPolar(p3.x, p3.y);
            expect(Math.round(p4.x)).toBe(-4);
            expect(Math.round(p4.y)).toBe(3);
            const p5 = new __1.Point(4, -3).toPolar();
            const p6 = __1.Point.fromPolar(p5.x, p5.y);
            expect(Math.round(p6.x)).toBe(4);
            expect(Math.round(p6.y)).toBe(-3);
            const p7 = new __1.Point(-4, -3).toPolar();
            const p8 = __1.Point.fromPolar(p7.x, p7.y);
            expect(Math.round(p8.x)).toBe(-4);
            expect(Math.round(p8.y)).toBe(-3);
        });
    });
    describe('#snapToGrid', () => {
        it('should snap to grid', () => {
            const p1 = new __1.Point(4, 17);
            const p2 = p1.clone().snapToGrid(10);
            const p3 = p1.clone().snapToGrid(3, 5);
            expect(p2.x).toBe(0);
            expect(p2.y).toBe(20);
            expect(p3.x).toBe(3);
            expect(p3.y).toBe(15);
        });
    });
});
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