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144 lines
6.3 KiB
JavaScript
144 lines
6.3 KiB
JavaScript
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/**
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* Module dependencies.
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*/
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import assert from 'assert';
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import dataUriToBuffer from '../src';
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describe('data-uri-to-buffer', function () {
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it('should decode bare-bones Data URIs', function () {
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var uri = 'data:,Hello%2C%20World!';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('text/plain;charset=US-ASCII', buf.typeFull);
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assert.equal('US-ASCII', buf.charset);
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assert.equal('Hello, World!', buf.toString());
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});
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it('should decode bare-bones "base64" Data URIs', function () {
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var uri = 'data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('Hello, World!', buf.toString());
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});
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it('should decode plain-text Data URIs', function () {
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var html = '<!DOCTYPE html>' +
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'<html lang="en">' +
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'<head><title>Embedded Window</title></head>' +
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'<body><h1>42</h1></body>' +
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'</html>';
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// Escape the HTML for URL formatting
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var uri = 'data:text/html;charset=utf-8,' + encodeURIComponent(html);
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var buf = dataUriToBuffer(uri);
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assert.equal('text/html', buf.type);
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assert.equal('utf-8', buf.charset);
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assert.equal(html, buf.toString());
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});
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// the next 4 tests are from:
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// https://bug161965.bugzilla.mozilla.org/attachment.cgi?id=94670&action=view
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it('should decode "ISO-8859-8 in Base64" URIs', function () {
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var uri = 'data:text/plain;charset=iso-8859-8-i;base64,+ezl7Q==';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('iso-8859-8-i', buf.charset);
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assert.equal(4, buf.length);
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assert.equal(0xf9, buf[0]);
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assert.equal(0xec, buf[1]);
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assert.equal(0xe5, buf[2]);
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assert.equal(0xed, buf[3]);
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});
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it('should decode "ISO-8859-8 in URL-encoding" URIs', function () {
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var uri = 'data:text/plain;charset=iso-8859-8-i,%f9%ec%e5%ed';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('iso-8859-8-i', buf.charset);
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assert.equal(4, buf.length);
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assert.equal(0xf9, buf[0]);
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assert.equal(0xec, buf[1]);
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assert.equal(0xe5, buf[2]);
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assert.equal(0xed, buf[3]);
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});
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it('should decode "UTF-8 in Base64" URIs', function () {
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var uri = 'data:text/plain;charset=UTF-8;base64,16nXnNeV150=';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('UTF-8', buf.charset);
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assert.equal(8, buf.length);
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assert.equal('שלום', buf.toString('utf8'));
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});
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it('should decode "UTF-8 in URL-encoding" URIs', function () {
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var uri = 'data:text/plain;charset=UTF-8,%d7%a9%d7%9c%d7%95%d7%9d';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('UTF-8', buf.charset);
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assert.equal(8, buf.length);
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assert.equal('שלום', buf.toString('utf8'));
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});
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// this next one is from Wikipedia IIRC
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it('should decode "base64" Data URIs with newlines', function () {
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var uri = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA\n' +
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'AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO\n' +
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'9TXL0Y4OHwAAAABJRU5ErkJggg==';
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var buf = dataUriToBuffer(uri);
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assert.equal('image/png', buf.type);
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assert.equal('iVBORw0KGgoAAAANSUhEUgAAAAUA' +
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'AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO' +
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'9TXL0Y4OHwAAAABJRU5ErkJggg==', buf.toString('base64'));
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});
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it('should decode a plain-text URI with a space character in it', function () {
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var uri = 'data:,foo bar';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('foo bar', buf.toString());
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});
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it('should decode data with a "," comma char', function () {
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var uri = 'data:,a,b';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('a,b', buf.toString());
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});
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it('should decode data with traditionally reserved characters like ";"', function () {
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var uri = 'data:,;test';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal(';test', buf.toString());
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});
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it('should not default to US-ASCII if main type is provided', function () {
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var uri = 'data:text/plain,abc';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('text/plain', buf.typeFull);
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assert.equal('', buf.charset);
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assert.equal('abc', buf.toString());
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});
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it('should default to text/plain if main type is not provided', function () {
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var uri = 'data:;charset=UTF-8,abc';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('text/plain;charset=UTF-8', buf.typeFull);
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assert.equal('UTF-8', buf.charset);
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assert.equal('abc', buf.toString());
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});
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it('should not allow charset without a leading ;', function () {
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var uri = 'data:charset=UTF-8,abc';
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var buf = dataUriToBuffer(uri);
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assert.equal('charset=UTF-8', buf.type);
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assert.equal('charset=UTF-8', buf.typeFull);
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assert.equal('', buf.charset);
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assert.equal('abc', buf.toString());
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});
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it('should allow custom media type parameters', function () {
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var uri = 'data:application/javascript;version=1.8;charset=UTF-8,abc';
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var buf = dataUriToBuffer(uri);
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assert.equal('application/javascript', buf.type);
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assert.equal('application/javascript;version=1.8;charset=UTF-8', buf.typeFull);
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assert.equal('UTF-8', buf.charset);
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assert.equal('abc', buf.toString());
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});
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it('should allow base64 annotation anywhere', function () {
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var uri = 'data:text/plain;base64;charset=UTF-8,YWJj';
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var buf = dataUriToBuffer(uri);
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assert.equal('text/plain', buf.type);
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assert.equal('text/plain;charset=UTF-8', buf.typeFull);
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assert.equal('UTF-8', buf.charset);
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assert.equal('abc', buf.toString());
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});
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});
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//# sourceMappingURL=test.js.map
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