47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
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// Node
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if (typeof module !== 'undefined' && module.exports) {
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var numeral = require('../../numeral');
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var expect = require('chai').expect;
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}
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describe('Exponential', function() {
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after(function() {
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numeral.reset();
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});
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it('should format to exponential notation', function() {
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var tests = [
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[0,'0e+0','0e+0'],
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[null,'0e+0','0e+0'],
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[1,'0e+0','1e+0'],
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[77.1234,'0.0e+0','7.7e+1'],
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[0.000000771234,'0.0e-0','7.7e-7'],
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[-0.000000771234,'0.00e-0','-7.71e-7'],
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[77.1234,'0.000e+0','7.712e+1'],
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[-1000830298,'0.0[000]e+0','-1.0008e+9']
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],
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i;
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for (i = 0; i < tests.length; i++) {
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expect(numeral(tests[i][0]).format(tests[i][1])).to.equal(tests[i][2]);
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}
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});
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it('should unformat to exponential notation', function() {
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var tests = [
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['0e+0', 0],
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['1e+0', 1],
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['7.712e+1', 77.12],
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['7.7e-7', 0.00000077],
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['-7.71e-6', -0.00000771],
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['-1.0008e+9', -1000800000]
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],
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i;
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for (i = 0; i < tests.length; i++) {
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expect(numeral(tests[i][0]).value()).to.equal(tests[i][1]);
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}
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});
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});
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