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