js-2dmath/test/test-circle.js

Fast 2d geometry math: Vector2, Rectangle, Circle, Matrix2x3 (2D transformation), Circle, BoundingBox, Line2, Segment2, Intersections, Distances, Transitions (animation/tween), Random numbers, Noise

var tap = require("tap"),
    test = tap.test,
    Circle = require("../index.js").Circle;

//setup

test("Circle init", function(t) {
    var c1 = Circle.create(0, 0, 10);

    // normalized
    t.equal(c1[0][0], 0, "t1");
    t.equal(c1[0][1], 0, "t2");


    t.equal(c1[1], 10, "t3");

    Circle.translate(c1, c1, [10,10]);

    t.equal(c1[0][0], 10, "t1-1");
    t.equal(c1[0][1], 10, "t2-1");


    t.equal(c1[1], 10, "t3-1");

    t.end();
});