Node.js initialisiert

node_modules/blob/test/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');
+    });
+  }
+});