68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
/* eslint-env mocha, node */
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var fs = require('fs'), assert = require('assert');
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var frac;
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describe('source', function() { it('should load', function() { frac = require('./'); }); });
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var xltestfiles=[
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['xl.00001.tsv', 10000],
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['xl.0001.tsv', 10000],
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['xl.001.tsv', 10000],
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['xl.01.tsv', 10000],
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['oddities.tsv', 25]
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];
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function xlline(o,j,m,w) {
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it(j.toString(), function() {
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var d, q, qq, f = 0.1;
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var q0 = 0, q1 = 0, q2 = 0;
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for(var i = j*w; i < m-3 && i < (j+1)*w; ++i) {
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d = o[i].split("\t");
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if(d.length < 3) continue;
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f = parseFloat(d[0]);
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q = frac.cont(f, 9, true);
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q0 = q[0]; q1 = q[1]; q2 = q[2];
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qq = (q0!=0||q1!=0) ? (q0!=0 ? q0.toString() : "") + " " + (q1!=0 ? q1.toString() + "/" + q2.toString() : " ") : "0 ";
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assert.equal(qq, d[1], d[1] + " 1");
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q = frac.cont(f, 99, true);
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qq = (q[0]!=0||q[1]!=0) ? (q[0]!=0 ? q[0].toString() : "") + " " + (q[1]!=0 ? (q[1] < 10 ? " " : "") + q[1].toString() + "/" + q[2].toString() + (q[2]<10?" ":"") : " ") : "0 ";
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assert.equal(qq, d[2], d[2] + " 2");
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q = frac.cont(f, 999, true);
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qq = (q[0]!=0||q[1]!=0) ? (q[0]!=0 ? q[0].toString() : "") + " " + (q[1]!=0 ? (q[1] < 100 ? " " : "") + (q[1] < 10 ? " " : "") + q[1].toString() + "/" + q[2].toString() + (q[2]<10?" ":"") + (q[2]<100?" ":""): " ") : "0 ";
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assert.equal(qq, d[3], d[3] + " 3");
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}
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});
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}
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function parsexl(f,w) {
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if(!fs.existsSync(f)) return;
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var o = fs.readFileSync(f, 'utf-8').split("\n");
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for(var j = 0, m = o.length-3; j < m/w; ++j) xlline(o,j,m,w);
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}
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function cmp(a,b) { assert.equal(a.length,b.length); for(var i = 0; i != a.length; ++i) assert.equal(a[i], b[i]); }
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describe('mediant', function() {
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it('should do the right thing for tenths', function() {
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cmp(frac(0.1,9,false),[0,1,9]);
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cmp(frac(0.2,9,false),[0,1,5]);
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cmp(frac(0.3,9,false),[0,2,7]);
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cmp(frac(0.4,9,false),[0,2,5]);
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cmp(frac(0.5,9,false),[0,1,2]);
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cmp(frac(0.6,9,false),[0,3,5]);
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cmp(frac(0.7,9,false),[0,5,7]);
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cmp(frac(0.8,9,false),[0,4,5]);
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cmp(frac(0.9,9,false),[0,8,9]);
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cmp(frac(1.0,9,false),[0,1,1]);
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cmp(frac(1.0,9,true), [1,0,1]);
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cmp(frac(1.7,9,true), [1,5,7]);
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cmp(frac(1.7,9,false),[0,12,7]);
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cmp(frac(0.69,9,false),[0,2,3]);
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cmp(frac(0.6969,9,false),[0,5,7]);
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});
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});
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xltestfiles.forEach(function(x) {
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var f = './test_files/' + x[0];
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describe(x[0], function() {
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parsexl(f,x[1]);
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});
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});
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