Cesium-Prequel/Specs/Core/pointInsideTriangleSpec.js

import { Cartesian2 } from "../../Source/Cesium.js";
import { pointInsideTriangle } from "../../Source/Cesium.js";

describe("Core/pointInsideTriangle", function () {
  it("pointInsideTriangle has point inside", function () {
    expect(
      pointInsideTriangle(
        new Cartesian2(0.25, 0.25),
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(true);
  });

  it("pointInsideTriangle has point outside", function () {
    expect(
      pointInsideTriangle(
        new Cartesian2(1.0, 1.0),
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(false);
  });

  it("pointInsideTriangle has point outside (2)", function () {
    expect(
      pointInsideTriangle(
        new Cartesian2(0.5, -0.5),
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(false);
  });

  it("pointInsideTriangle has point outside (3)", function () {
    expect(
      pointInsideTriangle(
        new Cartesian2(-0.5, 0.5),
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(false);
  });

  it("pointInsideTriangle has point on corner", function () {
    expect(
      pointInsideTriangle(
        Cartesian2.ZERO,
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(false);
  });

  it("pointInsideTriangle has point inside on edge", function () {
    expect(
      pointInsideTriangle(
        new Cartesian2(0.5, 0.0),
        Cartesian2.ZERO,
        new Cartesian2(1.0, 0.0),
        new Cartesian2(0.0, 1.0)
      )
    ).toEqual(false);
  });

  it("throws without point", function () {
    expect(function () {
      pointInsideTriangle();
    }).toThrowDeveloperError();
  });

  it("throws without p0", function () {
    expect(function () {
      pointInsideTriangle(new Cartesian2());
    }).toThrowDeveloperError();
  });

  it("throws without p1", function () {
    expect(function () {
      pointInsideTriangle(new Cartesian2(), new Cartesian2());
    }).toThrowDeveloperError();
  });

  it("throws without p2", function () {
    expect(function () {
      pointInsideTriangle(new Cartesian2(), new Cartesian2(), new Cartesian2());
    }).toThrowDeveloperError();
  });
});