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101 lines
3.5 KiB
JavaScript
101 lines
3.5 KiB
JavaScript
// test fix
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var assert = require('assert');
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var approx = require('../../../tools/approx');
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var math = require('../../../index');
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var bignumber = math.bignumber;
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var complex = math.complex;
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var fraction = math.fraction;
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var matrix = math.matrix;
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var unit = math.unit;
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var range = math.range;
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var fix = math.fix;
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describe('fix', function() {
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it('should round booleans correctly', function () {
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assert.equal(fix(true), 1);
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assert.equal(fix(false), 0);
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});
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it('should round null', function () {
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assert.equal(math.ceil(null), 0);
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});
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it('should round numbers correctly', function() {
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approx.equal(fix(0), 0);
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approx.equal(fix(1), 1);
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approx.equal(fix(1.3), 1);
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approx.equal(fix(1.8), 1);
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approx.equal(fix(2), 2);
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approx.equal(fix(-1), -1);
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approx.equal(fix(-1.3), -1);
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approx.equal(fix(-1.8), -1);
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approx.equal(fix(-2), -2);
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approx.equal(fix(-2.1), -2);
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approx.equal(fix(math.pi), 3);
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});
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it('should round big numbers correctly', function() {
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assert.deepEqual(fix(bignumber(0)), bignumber(0));
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assert.deepEqual(fix(bignumber(1)), bignumber(1));
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assert.deepEqual(fix(bignumber(1.3)), bignumber(1));
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assert.deepEqual(fix(bignumber(1.8)), bignumber(1));
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assert.deepEqual(fix(bignumber(2)), bignumber(2));
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assert.deepEqual(fix(bignumber(-1)), bignumber(-1));
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assert.deepEqual(fix(bignumber(-1.3)), bignumber(-1));
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assert.deepEqual(fix(bignumber(-1.8)), bignumber(-1));
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assert.deepEqual(fix(bignumber(-2)), bignumber(-2));
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assert.deepEqual(fix(bignumber(-2.1)), bignumber(-2));
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});
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it('should round complex numbers correctly', function() {
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// complex
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approx.deepEqual(fix(complex(0, 0)), complex(0, 0));
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approx.deepEqual(fix(complex(1.3, 1.8)), complex(1, 1));
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approx.deepEqual(fix(math.i), complex(0, 1));
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approx.deepEqual(fix(complex(-1.3, -1.8)), complex(-1, -1));
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});
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it('should round fractions correctly', function() {
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var a = fraction('2/3');
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assert(fix(a) instanceof math.type.Fraction);
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assert.equal(a.toString(), '0.(6)');
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assert.equal(fix(fraction(0)).toString(), '0');
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assert.equal(fix(fraction(1)).toString(), '1');
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assert.equal(fix(fraction(1.3)).toString(), '1');
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assert.equal(fix(fraction(1.8)).toString(), '1');
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assert.equal(fix(fraction(2)).toString(), '2');
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assert.equal(fix(fraction(-1)).toString(), '-1');
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assert.equal(fix(fraction(-1.3)).toString(), '-1');
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assert.equal(fix(fraction(-1.8)).toString(), '-1');
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assert.equal(fix(fraction(-2)).toString(), '-2');
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assert.equal(fix(fraction(-2.1)).toString(), '-2');
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});
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it('should throw an error on unit as parameter', function() {
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// unit
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assert.throws(function () {fix(unit('5cm'))}, TypeError, 'Function fix(unit) not supported');
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});
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it('should convert a string to a number', function() {
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assert.strictEqual(fix('1.8'), 1);
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});
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it('should correctly round all values of a matrix element-wise', function() {
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// matrix, array, range
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approx.deepEqual(fix([1.2, 3.4, 5.6, 7.8, 10.0]), [1, 3, 5, 7, 10]);
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approx.deepEqual(fix(matrix([1.2, 3.4, 5.6, 7.8, 10.0])), matrix([1, 3, 5, 7, 10]));
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});
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it('should throw an error in case of invalid number of arguments', function() {
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assert.throws(function () {fix()}, /TypeError: Too few arguments/);
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assert.throws(function () {fix(1, 2)}, /TypeError: Too many arguments/);
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});
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it('should LaTeX fix', function () {
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var expression = math.parse('fix(0.6)');
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assert.equal(expression.toTex(), '\\mathrm{fix}\\left(0.6\\right)');
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});
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});
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