75 lines
2.4 KiB
JavaScript
75 lines
2.4 KiB
JavaScript
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defineSuite([
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'Core/LinearApproximation'
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], function(
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LinearApproximation) {
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'use strict';
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it('should produce correct results', function() {
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var xTable = [2.0, 4.0];
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var yTable = [2.0, 3.0, 4.0, 34.0];
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var results = LinearApproximation.interpolateOrderZero(3.0, xTable, yTable, 2);
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expect(results.length).toEqual(2);
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expect(results[0]).toEqual(3.0);
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expect(results[1]).toEqual(18.5);
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});
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it('should produce correct results with a result parameter', function() {
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var xTable = [2.0, 4.0];
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var yTable = [2.0, 3.0, 4.0, 34.0];
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var result = new Array(2);
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var results = LinearApproximation.interpolateOrderZero(3.0, xTable, yTable, 2, result);
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expect(result).toBe(results);
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expect(results.length).toEqual(2);
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expect(results[0]).toEqual(3.0);
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expect(results[1]).toEqual(18.5);
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});
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it('should produce correct results 2', function() {
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var xTable2 = [40, 120];
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var yTable2 = [20, 40, 60, 80, 90, 100];
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var results = LinearApproximation.interpolateOrderZero(80.0, xTable2, yTable2, 3);
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expect(results.length).toEqual(3);
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expect(results[0]).toEqual(50.0);
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expect(results[1]).toEqual(65.0);
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expect(results[2]).toEqual(80.0);
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});
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it('should produce correct results 3', function() {
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var xTable3 = [20, 30];
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var yTable3 = [10, 20, 30, 20, 30, 40, 20, 40, 60, 80, 90, 100];
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var results = LinearApproximation.interpolateOrderZero(40, xTable3, yTable3, 1);
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expect(results.length).toEqual(1);
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expect(results[0]).toEqual(30.0);
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});
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it('should throw if length is greater than 2', function() {
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var xTable = [44.0, 99.0, 230.0];
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var yTable = [2.3, 4.5, 6.6, 3.2, 4.4, 12.23];
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expect(function() {
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LinearApproximation.interpolateOrderZero(2.3, xTable, yTable, 3);
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}).toThrowDeveloperError();
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});
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it('should throw when yStride equals zero indicating that there are no dependent variables for interpolation', function() {
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var xTable = [4.0, 8.0];
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var yTable = [4.0, 8.0];
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expect(function() {
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LinearApproximation.interpolateOrderZero(6.0, xTable, yTable, 0);
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}).toThrowDeveloperError();
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});
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it('getRequiredDataPoints returns 2', function() {
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expect(LinearApproximation.getRequiredDataPoints(1)).toEqual(2);
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});
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});
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