Fix failing tests, add missing license headers

test/node/disposition.test.ts

@@ -41,6 +41,7 @@ test('Default track disposition', async () => {
 		original: false,
 		hearingImpaired: false,
 		visuallyImpaired: false,
+		primary: false,
 		commentary: false,
 	});
 });
@@ -87,6 +88,7 @@ test('Customized track disposition', async () => {
 		original: true,
 		hearingImpaired: true,
 		visuallyImpaired: true,
+		primary: false,
 		commentary: true,
 	});
 });

test/node/flac.test.ts

@@ -21,7 +21,7 @@ test('can loop over all samples', async () => {
 
 	const track = await input.getPrimaryAudioTrack();
 	assert(track);
-	expect(await track.computeDuration()).toEqual(19.71428571428571);
+	expect(await track.computeDuration()).toEqual(19.714285714285715);
 	expect(await track.getDecoderConfig()).toEqual({
 		codec: 'flac',
 		numberOfChannels: 2,