ebc98ec1bb
To make sure that our binarySearch implementation meets the requirements of the library, I added more tests for ol.geom.flat.interpolate.lineString, only to find out that it does not handle line strings with repeated vertices properly, regardless of what binarySearch implementation is used.
82 lines
2.7 KiB
JavaScript
82 lines
2.7 KiB
JavaScript
goog.provide('ol.test.geom.flat.interpolate');
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describe('ol.geom.flat.interpolate', function() {
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describe('ol.geom.flat.interpolate.lineString', function() {
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it('returns the expected value for single points', function() {
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var flatCoordinates = [0, 1];
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var point =
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ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 2, 2, 0.5);
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expect(point).to.eql([0, 1]);
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});
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it('returns the expected value for simple line segments', function() {
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var flatCoordinates = [0, 1, 2, 3];
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var point =
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ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 4, 2, 0.5);
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expect(point).to.eql([1, 2]);
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});
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it('returns the expected value when the mid point is an existing ' +
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'coordinate',
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function() {
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var flatCoordinates = [0, 1, 2, 3, 4, 5];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 6, 2, 0.5);
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expect(point).to.eql([2, 3]);
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});
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xit('also when vertices are repeated', function() {
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var flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 6, 2, 0.5);
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expect(point).to.eql([2, 3]);
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});
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it('returns the expected value when the midpoint falls halfway between ' +
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'two existing coordinates',
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function() {
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var flatCoordinates = [0, 1, 2, 3, 4, 5, 6, 7];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 8, 2, 0.5);
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expect(point).to.eql([3, 4]);
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});
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xit('also when vertices are repeated', function() {
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var flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5, 6, 7];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 8, 2, 0.5);
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expect(point).to.eql([3, 4]);
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});
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it('returns the expected value when the coordinates are not evenly spaced',
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function() {
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var flatCoordinates = [0, 1, 2, 3, 6, 7];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 6, 2, 0.5);
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expect(point).to.eql([3, 4]);
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});
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xit('also when vertices are repeated',
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function() {
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var flatCoordinates = [0, 1, 2, 3, 2, 3, 6, 7];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 6, 2, 0.5);
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expect(point).to.eql([3, 4]);
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});
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it('returns the expected value when using opt_dest',
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function() {
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var flatCoordinates = [0, 1, 2, 3, 6, 7];
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var point = ol.geom.flat.interpolate.lineString(
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flatCoordinates, 0, 6, 2, 0.5, [0, 0]);
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expect(point).to.eql([3, 4]);
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});
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});
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});
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goog.require('ol.geom.flat.interpolate');
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