teraSite/node_modules/body-parser/node_modules/type-is/node_modules/mime-types/test/mime.js

/**
 * Usage: node test.js
 */

var mime = require("..");
var assert = require('assert');
var path = require('path');

function eq(a, b) {
  console.log('Test: ' + a + ' === ' + b);
  assert.strictEqual.apply(null, arguments);
}

console.log(Object.keys(mime.extensions).length + ' types');
console.log(Object.keys(mime.types).length + ' extensions\n');

//
// Test mime lookups
//

eq('text/plain', mime.lookup('text.txt'));     // normal file
eq('text/plain', mime.lookup('TEXT.TXT'));     // uppercase
eq('text/plain', mime.lookup('dir/text.txt')); // dir + file
eq('text/plain', mime.lookup('.text.txt'));    // hidden file
eq('text/plain', mime.lookup('.txt'));         // nameless
eq('text/plain', mime.lookup('txt'));          // extension-only
eq('text/plain', mime.lookup('/txt'));         // extension-less ()
eq('text/plain', mime.lookup('\\txt'));        // Windows, extension-less
// eq('application/octet-stream', mime.lookup('text.nope')); // unrecognized
// eq('fallback', mime.lookup('text.fallback', 'fallback')); // alternate default

//
// Test extensions
//

eq('txt', mime.extension(mime.types.text));
eq('html', mime.extension(mime.types.htm));
eq('bin', mime.extension('application/octet-stream'));
eq('bin', mime.extension('application/octet-stream '));
eq('html', mime.extension(' text/html; charset=UTF-8'));
eq('html', mime.extension('text/html; charset=UTF-8 '));
eq('html', mime.extension('text/html; charset=UTF-8'));
eq('html', mime.extension('text/html ; charset=UTF-8'));
eq('html', mime.extension('text/html;charset=UTF-8'));
eq('html', mime.extension('text/Html;charset=UTF-8'));
eq(false, mime.extension('unrecognized'));

//
// Test node.types lookups
//

eq('application/font-woff', mime.lookup('file.woff'));
eq('application/octet-stream', mime.lookup('file.buffer'));
eq('audio/mp4', mime.lookup('file.m4a'));
eq('font/opentype', mime.lookup('file.otf'));

//
// Test charsets
//

eq('UTF-8', mime.charset('text/plain'));
eq(false, mime.charset(mime.types.js));
eq('UTF-8', mime.charset('application/json'))
eq('UTF-8', mime.charsets.lookup('text/something'));
// eq('fallback', mime.charset('application/octet-stream', 'fallback'));