Reintroduced id3 tests but using common media library

Signed-off-by: coatesjuan <juanco@qualabs.com>

package.json

@@ -129,5 +129,8 @@
     "typescript": "5.3.3",
     "url-toolkit": "2.2.5",
     "wrangler": "3.24.0"
+  },
+  "dependencies": {
+    "ci": "^2.3.0"
   }
 }

tests/unit/demuxer/id3.ts

@@ -1,7 +1,27 @@
+import { canParseId3 } from '@svta/common-media-library/id3/canParseId3';
+import { Id3Frame } from '@svta/common-media-library/id3/Id3Frame';
+import { isId3Header } from '@svta/common-media-library/id3/util/isId3Header';
 import { expect } from 'chai';
 import { utf8ArrayToStr } from '../../../src/demux/id3';
+import { decodeId3TextFrame } from '@svta/common-media-library/id3/util/decodeId3TextFrame';
 
 describe('ID3 tests', function () {
+  const mockID3Header = Uint8Array.from([
+    73, 68, 51, 4, 0, 0, 0, 0, 0, 63, 80, 82, 73, 86, 0, 0, 0, 53, 0, 0, 99,
+    111, 109, 46, 97, 112, 112, 108, 101, 46, 115, 116, 114, 101, 97, 109, 105,
+    110, 103, 46, 116, 114, 97, 110, 115, 112, 111, 114, 116, 83, 116, 114, 101,
+    97, 109, 84, 105, 109, 101, 115, 116, 97, 109, 112, 0, 0, 0, 0, 0, 0, 13,
+    198, 135,
+  ]);
+  const mockID3HeaderMissingLeadingByte = mockID3Header.slice(
+    8,
+    mockID3Header.length,
+  );
+  const mockID3HeaderMissingTrailingByte = mockID3Header.slice(
+    0,
+    mockID3Header.length - 8,
+  );
+
   it('utf8ArrayToStr', function (done) {
     const aB = new Uint8Array([97, 98]);
     const aNullBNullC = new Uint8Array([97, 0, 98, 0, 99]);
@@ -12,4 +32,28 @@ describe('ID3 tests', function () {
 
     done();
   });
+  it('Properly parses ID3 Headers', function () {
+    expect(isId3Header(mockID3HeaderMissingLeadingByte, 0)).to.equal(false);
+    expect(isId3Header(mockID3HeaderMissingTrailingByte, 0)).to.equal(true);
+    expect(isId3Header(mockID3Header, 0)).to.equal(true);
+  });
+  it('Properly parses ID3 Info', function () {
+    expect(canParseId3(mockID3Header, 0)).to.equal(true);
+    expect(canParseId3(mockID3HeaderMissingLeadingByte, 0)).to.equal(false);
+    expect(canParseId3(mockID3HeaderMissingTrailingByte, 0)).to.equal(false);
+  });
+
+  it('should decode a TXXX frame', function () {
+    const frame = {
+      type: 'TXXX',
+      data: new Uint8Array([0, 102, 111, 111, 0, 97, 98, 99]),
+      size: 2, // required by the _decodeTextFrame function
+    };
+
+    const result: Id3Frame | undefined = decodeId3TextFrame(frame);
+    expect(result).to.exist;
+    expect(result!.key).to.equal('TXXX');
+    expect(result!.info).to.equal('foo');
+    expect(result!.data).to.equal('abc');
+  });
 });