change all worker_transfer tests to use structuredClone for realistic test; note that jsdom Blob does not work with node native structuredClone so that one line is disabled

Author: oberhamsi

src/util/web_worker_transfer.test.ts

@@ -17,7 +17,7 @@ describe('web worker transfer', () => {
             constructor(n) {
                 this.n = n;
                 this.buffer = new ArrayBuffer(100);
-                this.blob = new Blob();
+                this.blob = new Blob(['Test'], {type: 'application/text'});
                 this.squared();
             }
 
@@ -34,15 +34,20 @@ describe('web worker transfer', () => {
 
         const serializableMock = new SerializableMock(10);
         const transferables = [];
-        const deserialized = deserialize(serialize(serializableMock, transferables)) as SerializableMock;
-        expect(deserialize(serialize(serializableMock, transferables)) instanceof SerializableMock).toBeTruthy();
-
+        const deserialized = mockTransfer(serializableMock, transferables) as SerializableMock;
+        expect(deserialized instanceof SerializableMock).toBeTruthy();
+        expect(transferables[0] === serializableMock.buffer).toBeTruthy();
+        expect(serializableMock.buffer.byteLength).toBe(0);
+        expect(deserialized.buffer.byteLength).toBe(100);
         expect(serializableMock !== deserialized).toBeTruthy();
         expect(deserialized.constructor === SerializableMock).toBeTruthy();
         expect(deserialized.n === 10).toBeTruthy();
-        expect(deserialized.buffer === serializableMock.buffer).toBeTruthy();
-        expect(deserialized.blob === serializableMock.blob).toBeTruthy();
-        expect(transferables[0] === serializableMock.buffer).toBeTruthy();
+        expect(serializableMock.blob.size).toBe(4);
+        // seems to be a problem with jsdom + node. it works in
+        // node and it works in browsers
+        // expect(structuredClone(new Blob())).toBeInstanceOf(Blob);
+        // expect(deserialized.blob.size).toBe(4);
+
         expect(deserialized._cached === undefined).toBeTruthy();
         expect(deserialized.squared() === 100).toBeTruthy();
     });
@@ -52,7 +57,7 @@ describe('web worker transfer', () => {
         expect(!Klass.name).toBeTruthy();
         register('Anon', Klass);
         const x = new Klass();
-        const deserialized = deserialize(serialize(x));
+        const deserialized = mockTransfer(x);
         expect(deserialized instanceof Klass).toBeTruthy();
     });
 
@@ -81,8 +86,8 @@ describe('web worker transfer', () => {
         const customSerialization = new CustomSerialization('a');
         expect(!customSerialization._deserialized).toBeTruthy();
 
-        const deserialized = deserialize(serialize(customSerialization)) as CustomSerialization;
-        expect(deserialize(serialize(customSerialization)) instanceof CustomSerialization).toBeTruthy();
+        const deserialized = mockTransfer(customSerialization) as CustomSerialization;
+        expect(mockTransfer(customSerialization) instanceof CustomSerialization).toBeTruthy();
         expect(deserialized.id).toBe(customSerialization.id);
         expect(deserialized._deserialized).toBeTruthy();
     });