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101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
5 years ago
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var Blob = require('../');
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var expect = require('expect.js');
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describe('blob', function() {
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if (!Blob) {
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it('should not have a blob or a blob builder in the global namespace, or blob should not be a constructor function if the module exports false', function() {
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try {
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var ab = (new Uint8Array(5)).buffer;
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global.Blob([ab]);
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expect().fail('Blob shouldn\'t be constructable');
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} catch (e) {}
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var BlobBuilder = global.BlobBuilder
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|| global.WebKitBlobBuilder
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|| global.MSBlobBuilder
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|| global.MozBlobBuilder;
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expect(BlobBuilder).to.be(undefined);
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});
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} else {
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it('should encode a proper sized blob when given a string argument', function() {
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var b = new Blob(['hi']);
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expect(b.size).to.be(2);
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});
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it('should encode a blob with proper size when given two strings as arguments', function() {
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var b = new Blob(['hi', 'hello']);
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expect(b.size).to.be(7);
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});
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it('should encode arraybuffers with right content', function(done) {
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var ary = new Uint8Array(5);
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for (var i = 0; i < 5; i++) ary[i] = i;
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var b = new Blob([ary.buffer]);
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var fr = new FileReader();
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fr.onload = function() {
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var newAry = new Uint8Array(this.result);
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for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
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done();
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};
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fr.readAsArrayBuffer(b);
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});
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it('should encode typed arrays with right content', function(done) {
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var ary = new Uint8Array(5);
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for (var i = 0; i < 5; i++) ary[i] = i;
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var b = new Blob([ary]);
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var fr = new FileReader();
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fr.onload = function() {
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var newAry = new Uint8Array(this.result);
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for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
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done();
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};
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fr.readAsArrayBuffer(b);
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});
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it('should encode sliced typed arrays with right content', function(done) {
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var ary = new Uint8Array(5);
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for (var i = 0; i < 5; i++) ary[i] = i;
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var b = new Blob([ary.subarray(2)]);
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var fr = new FileReader();
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fr.onload = function() {
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var newAry = new Uint8Array(this.result);
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for (var i = 0; i < 3; i++) expect(newAry[i]).to.be(i + 2);
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done();
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};
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fr.readAsArrayBuffer(b);
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});
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it('should encode with blobs', function(done) {
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var ary = new Uint8Array(5);
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for (var i = 0; i < 5; i++) ary[i] = i;
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var b = new Blob([new Blob([ary.buffer])]);
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var fr = new FileReader();
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fr.onload = function() {
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var newAry = new Uint8Array(this.result);
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for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
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done();
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};
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fr.readAsArrayBuffer(b);
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});
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it('should enode mixed contents to right size', function() {
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var ary = new Uint8Array(5);
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for (var i = 0; i < 5; i++) ary[i] = i;
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var b = new Blob([ary.buffer, 'hello']);
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expect(b.size).to.be(10);
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});
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it('should accept mime type', function() {
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var b = new Blob(['hi', 'hello'], { type: 'text/html' });
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expect(b.type).to.be('text/html');
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});
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it('should be an instance of constructor', function() {
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var b = new Blob(['hi']);
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expect(b).to.be.a(Blob);
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expect(b).to.be.a(global.Blob);
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});
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}
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});
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