snap.js/test/path.js

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2013-09-05 00:29:15 +00:00
describe("Path methods", function () {
it("Savage.path.getTotalLength", function () {
expect(+Savage.path.getTotalLength("M0,0 100,0").toFixed(2)).to.be(100);
});
it("Savage.path.getPointAtLength", function () {
expect(Savage.path.getPointAtLength("M0,0 100,0", 50)).to.eql({
x: 50,
y: 0,
m: {
x: 25,
y: 0
},
n: {
x: 75,
y: 0
},
start: {
x: 0,
y: 0
},
end: {
x: 100,
y: 0
},
alpha: 180
});
});
it("Savage.path.getSubpath", function () {
expect(Savage.path.getSubpath("M0,0 100,0", 10, 90)).to.be("M9.995,0C29.153,0,70.839,0,90,0");
expect(Savage.path.getSubpath("M0,0 100,0", 0, 90)).to.be("M0,0C0,0,64.674,0,90,0");
expect(Savage.path.getSubpath("M0,0 100,0", 10, 120)).to.be("M10,0C35.326,0,100,0,100,0");
});
it("Savage.path.findDotsAtSegment", function () {
expect(Savage.path.findDotsAtSegment(0,0,0,0,100,0,100,0,.5)).to.eql({
x: 50,
y: 0,
m: {
x: 25,
y: 0
},
n: {
x: 75,
y: 0
},
start: {
x: 0,
y: 0
},
end: {
x: 100,
y: 0
},
alpha: 180
});
});
it("Savage.path.bezierBBox", function () {
var bbox = Savage.path.bezierBBox(10, 10, 10, 20, 110, 0, 110, 10);
expect(bbox.cx).to.be(60);
expect(bbox.cy).to.be(10);
expect(bbox.x).to.be(10);
expect(bbox.w).to.be(100);
expect(bbox.width).to.be(100);
expect(bbox.x2).to.be(110);
});
it("Savage.path.isPointInsideBBox", function () {
expect(Savage.path.isPointInsideBBox({x: 0, y: 0, width: 10, height: 10}, 5, 5)).to.be(true);
expect(Savage.path.isPointInsideBBox({x: 0, y: 0, width: 10, height: 10}, 10, 5)).to.be(true);
expect(Savage.path.isPointInsideBBox({x: 0, y: 0, width: 10, height: 10}, 10, 10)).to.be(true);
});
it("Savage.path.isBBoxIntersect", function () {
expect(Savage.path.isBBoxIntersect({
x: 0,
y: 0,
width: 10,
height: 10
}, {
x: 5,
y: 5,
width: 15,
height: 15
})).to.be(true);
expect(Savage.path.isBBoxIntersect({
x: 0,
y: 0,
width: 10,
height: 10
}, {
x: 5,
y: 5,
width: 7,
height: 7
})).to.be(true);
expect(Savage.path.isBBoxIntersect({
x: 0,
y: 0,
width: 10,
height: 10
}, {
x: 15,
y: 15,
width: 10,
height: 10
})).to.be(false);
});
});