92 lines
3.6 KiB
JavaScript
92 lines
3.6 KiB
JavaScript
var assert = require('assert'),
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chardet = require('../'),
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fs = require('fs');
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describe('chardet', function() {
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var path = __dirname + '/data/encodings/utf8';
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var expectedEncodingsFromPath = JSON.stringify([
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{ 'confidence': 100, 'name': 'UTF-8', 'lang': undefined },
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{ 'confidence': 32, 'name': 'windows-1252', 'lang': 'fr' },
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{ 'confidence': 19, 'name': 'KOI8-R', 'lang': undefined },
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{ 'confidence': 10, 'name': 'Big5', 'lang': undefined },
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{ 'confidence': 10, 'name': 'GB18030', 'lang': undefined },
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{ 'confidence': 10, 'name': 'windows-1253', 'lang': undefined },
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{ 'confidence': 6, 'name': 'windows-1250', 'lang': 'pl' },
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{ 'confidence': 4, 'name': 'windows-1254', 'lang': undefined },
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{ 'confidence': 2, 'name': 'windows-1251', 'lang': undefined }
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]);
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describe('#detect', function() {
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it('should detect encoding', function() {
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assert.equal(chardet.detect(fs.readFileSync(path)), 'UTF-8');
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});
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it('should return a list of encodings, sorted by confidence level in decending order', function() {
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var matches = chardet.detect(fs.readFileSync(path), { returnAllMatches: true });
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assert.equal(JSON.stringify(matches), expectedEncodingsFromPath);
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});
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});
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describe('#detectFile', function() {
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it('should detect encoding', function(done) {
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chardet.detectFile(path, function(err, res) {
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assert.equal(err, null);
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assert.equal(res, 'UTF-8');
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done();
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});
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});
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it('should detect encoding with smaller sample size', function(done) {
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chardet.detectFile(path, { sampleSize: 32 }, function(err, res) {
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assert.equal(err, null);
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assert.equal(res, 'UTF-8');
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done();
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});
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});
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it('should return a list of encodings, sorted by confidence level in decending order', function() {
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chardet.detectFile(path, { returnAllMatches: true }, function(err, res) {
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assert.equal(err, null);
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assert.equal(JSON.stringify(res), expectedEncodingsFromPath);
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done();
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});
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});
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it('should return a list of encodings even with smaller sample size, sorted by confidence level in decending order', function() {
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chardet.detectFile(path, { sampleSize: 32, returnAllMatches: true }, function(err, res) {
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assert.equal(err, null);
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assert.equal(JSON.stringify(res), expectedEncodingsFromPath);
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done();
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});
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});
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});
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describe('#detectFileSync', function() {
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it('should detect encoding', function() {
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assert.equal(chardet.detectFileSync(path), 'UTF-8');
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});
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it('should detect encoding with smaller sample size', function() {
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assert.equal(chardet.detectFileSync(path, { sampleSize: 32 }), 'UTF-8');
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});
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it('should return a list of encodings, sorted by confidence level in decending order', function() {
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var matches = chardet.detectFileSync(path, { returnAllMatches: true });
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assert.equal(JSON.stringify(matches), expectedEncodingsFromPath);
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});
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it('should return a list of encodings even with smaller sample size, sorted by confidence level in decending order', function() {
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var matches = chardet.detectFileSync(path, { sampleSize: 32, returnAllMatches: true });
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assert.equal(JSON.stringify(matches), JSON.stringify([
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{'confidence': 100, 'name': 'UTF-8', 'lang': undefined},
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{'confidence': 10, 'name': 'Shift-JIS', 'lang': undefined},
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{'confidence': 10, 'name': 'windows-1252', 'lang': 'it'},
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{'confidence': 10, 'name': 'windows-1250', 'lang': 'hu'},
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{'confidence': 10, 'name': 'windows-1253', 'lang': undefined},
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{'confidence': 10, 'name': 'windows-1251', 'lang': undefined}
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]));
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});
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});
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});
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