60 lines
1.9 KiB
JavaScript
60 lines
1.9 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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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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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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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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