34 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import {describe, ddescribe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
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import { Statistic } from 'benchpress/src/statistic';
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import { NaN } from 'angular2/src/facade/math';
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export function main() {
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  describe('statistic', () => {
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    it('should calculate the mean', () => {
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      expect(Statistic.calculateMean([])).toBeNaN();
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      expect(Statistic.calculateMean([1,2,3])).toBe(2.0);
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    });
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    it('should calculate the standard deviation', () => {
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      expect(Statistic.calculateStandardDeviation([], NaN)).toBeNaN();
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      expect(Statistic.calculateStandardDeviation([1], 1)).toBe(0.0);
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      expect(Statistic.calculateStandardDeviation([2, 4, 4, 4, 5, 5, 7, 9], 5)).toBe(2.0);
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    });
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    it('should calculate the coefficient of variation', () => {
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      expect(Statistic.calculateCoefficientOfVariation([], NaN)).toBeNaN();
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      expect(Statistic.calculateCoefficientOfVariation([1], 1)).toBe(0.0);
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      expect(Statistic.calculateCoefficientOfVariation([2, 4, 4, 4, 5, 5, 7, 9], 5)).toBe(40.0);
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    });
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    it('should calculate the regression slope', () => {
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      expect(Statistic.calculateRegressionSlope([], NaN, [], NaN)).toBeNaN();
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      expect(Statistic.calculateRegressionSlope([1], 1, [2], 2)).toBeNaN();
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      expect(Statistic.calculateRegressionSlope([1,2], 1.5, [2,4], 3)).toBe(2.0);
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    });
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  });
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} |