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Add tests for ol.geom.LineString#getCoordinateAtM

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This commit is contained in:
Tom Payne
2014-02-25 15:52:02 +01:00
parent c218d5d4e8
commit 1c21316d20
1 changed files with 63 additions and 0 deletions
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63
test/spec/ol/geom/linestring.test.js
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@@ -228,6 +228,69 @@ describe('ol.geom.LineString', function() {
});
describe('with a simple XYM coordinates', function() {
var lineString;
beforeEach(function() {
lineString = new ol.geom.LineString(
[[1, 2, 3], [4, 5, 6]], ol.geom.GeometryLayout.XYM);
});
describe('#getCoordinateAtM', function() {
it('returns the expected value', function() {
expect(lineString.getCoordinateAtM(2, false)).to.be(null);
expect(lineString.getCoordinateAtM(2, true)).to.eql([1, 2, 2]);
expect(lineString.getCoordinateAtM(3, false)).to.eql([1, 2, 3]);
expect(lineString.getCoordinateAtM(3, true)).to.eql([1, 2, 3]);
expect(lineString.getCoordinateAtM(4, false)).to.eql([2, 3, 4]);
expect(lineString.getCoordinateAtM(4, true)).to.eql([2, 3, 4]);
expect(lineString.getCoordinateAtM(5, false)).to.eql([3, 4, 5]);
expect(lineString.getCoordinateAtM(5, true)).to.eql([3, 4, 5]);
expect(lineString.getCoordinateAtM(6, false)).to.eql([4, 5, 6]);
expect(lineString.getCoordinateAtM(6, true)).to.eql([4, 5, 6]);
expect(lineString.getCoordinateAtM(7, false)).to.eql(null);
expect(lineString.getCoordinateAtM(7, true)).to.eql([4, 5, 7]);
});
});
});
describe('with several XYZM coordinates', function() {
var lineString;
beforeEach(function() {
lineString = new ol.geom.LineString([
[0, 0, 0, 0],
[1, -1, 2, 1],
[2, -2, 4, 2],
[4, -4, 8, 4],
[8, -8, 16, 8],
[12, -12, 24, 12],
[14, -14, 28, 14],
[15, -15, 30, 15],
[16, -16, 32, 16],
[18, -18, 36, 18],
[22, -22, 44, 22]
]);
});
describe('#getCoordinateAtM', function() {
it('returns the expected value', function() {
expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XYZM);
var m;
for (m = 0; m <= 22; m += 0.5) {
expect(lineString.getCoordinateAtM(m, true)).to.eql(
[m, -m, 2 * m, m]);
}
});
});
});
});