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Implement unit tests for Curve#getCurvatureAt().

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This commit is contained in:
Jürg Lehni 2013-06-18 18:29:32 -07:00
parent 663a7e0369
commit dc076efd0c
1 changed files with 29 additions and 8 deletions
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37
test/tests/Curve.js
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@ -39,7 +39,7 @@ test('Curve#getTangentAt()', function() {
radius: 100
}).getFirstCurve();
var points = [
var tangents = [
[0, new Point(0, -165.68542 )],
[0.25, new Point(60.7233, -143.56602)],
[0.5, new Point(108.57864, -108.57864)],
@ -47,10 +47,10 @@ test('Curve#getTangentAt()', function() {
[1, new Point(165.68542, 0)]
];
for (var i = 0; i < points.length; i++) {
var entry = points[i];
for (var i = 0; i < tangents.length; i++) {
var entry = tangents[i];
comparePoints(curve.getTangentAt(entry[0], true), entry[1],
'curve.getPointAt(' + entry[0] + ', true);');
'curve.getTangentAt(' + entry[0] + ', true);');
}
});
@ -60,7 +60,7 @@ test('Curve#getNormalAt()', function() {
radius: 100
}).getFirstCurve();
var points = [
var normals = [
[0, new Point(-165.68542, 0)],
[0.25, new Point(-143.56602, -60.7233)],
[0.5, new Point(-108.57864, -108.57864)],
@ -68,9 +68,30 @@ test('Curve#getNormalAt()', function() {
[1, new Point(0, -165.68542)]
];
for (var i = 0; i < points.length; i++) {
var entry = points[i];
for (var i = 0; i < normals.length; i++) {
var entry = normals[i];
comparePoints(curve.getNormalAt(entry[0], true), entry[1],
'curve.getPointAt(' + entry[0] + ', true);');
'curve.getNormalAt(' + entry[0] + ', true);');
}
});
test('Curve#getCurvatureAt()', function() {
var curve = new Path.Circle({
center: [100, 100],
radius: 100
}).getFirstCurve();
var curvatures = [
[0, 0.009785533905932729],
[0.25, 0.010062133221584524],
[0.5, 0.009937576453041297],
[0.75, 0.010062133221584524],
[1, 0.009785533905932727]
];
for (var i = 0; i < curvatures.length; i++) {
var entry = curvatures[i];
compareNumbers(curve.getCurvatureAt(entry[0], true), entry[1],
'curve.getCurvatureAt(' + entry[0] + ', true);');
}
});