fix: update test

Author: achingbrain

test/jest-tests/polyfill.test.ts

@@ -87,10 +87,12 @@ describe('polyfill', () => {
     // We will set the "binaryType" and then send/receive the "data" from the datachannel in each test, and then compare them.
     // For example, the first line will send a "Hello" string after setting binaryType to "arraybuffer".
     const testMessages = [
-      { binaryType: 'arraybuffer', data: new TextEncoder().encode('Hello').buffer },
+      { binaryType: 'arraybuffer', data: 'Hello' },
       { binaryType: 'arraybuffer', data: createBinaryTestData() },
       { binaryType: 'arraybuffer', data: createBinaryTestData(new ArrayBuffer(100)) },
       { binaryType: 'arraybuffer', data: createBinaryTestData(new ArrayBuffer(100), 50) },
+      { binaryType: 'arraybuffer', data: createBinaryTestData(new ArrayBuffer(100), 50) },
+      { binaryType: 'blob', data: 'Hello' },
       { binaryType: 'blob', data: new Blob([createBinaryTestData()]) },
     ];
 
@@ -100,18 +102,23 @@ describe('polyfill', () => {
     let currentIndex: number = -1;
 
     // We run this function to analyze the data just after receiving it from the datachannel.
-    async function analyzeData(idx: number, data: Blob | ArrayBuffer): Promise<boolean> {
+    async function analyzeData(idx: number, data: Blob | ArrayBuffer | string): Promise<boolean> {
       switch (idx) {
         case 0: // binaryType is not used here because data is a string ("Hello").
-          return new TextDecoder().decode(data as ArrayBuffer) === 'Hello';
+          return data === 'Hello';
         case 1: // binaryType is "arraybuffer" and data is expected to be an ArrayBuffer.
           return analyzeBinaryTestData(data as ArrayBufferLike);
         case 2: // binaryType is "arraybuffer" and data is expected from a view on a larger ArrayBuffer
           return analyzeBinaryTestData(data as ArrayBufferLike);
         case 3: // binaryType is "arraybuffer" and data was created from a view on a larger ArrayBuffer with an offset
           return analyzeBinaryTestData(data as ArrayBufferLike);
-        case 4: // binaryType is "blob" and data is expected to be a Blob.
+        case 4: // binaryType is "arraybuffer" and data was created from a view on a larger ArrayBuffer with an offset
+          return analyzeBinaryTestData(data as ArrayBufferLike);
+        case 5: // binaryType is "blob" and data is expected to be a string ("Hello").
+          return data === 'Hello'
+        case 6: // binaryType is "blob" and data is expected to be a Blob.
           return analyzeBinaryTestData(await (data as Blob).arrayBuffer());
+
       }
       return false;
     }
@@ -168,12 +175,7 @@ describe('polyfill', () => {
       }
 
       // Send the test message
-      // workaround for https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/1973
-      if (current.data instanceof ArrayBuffer || current.data instanceof Uint8Array) {
-        dc1.send(current.data);
-      } else if (current.data instanceof Blob) {
-        dc1.send(current.data);
-      }
+      dc1.send(current.data);
     }
 
     // Set Callbacks