added extra tests and changed resolver default to V2

clients/js/src/hooked/resolvers.ts

@@ -30,7 +30,9 @@ export const resolveCollectionDetails = (
   args: { isCollection?: boolean },
   ...rest: any[]
 ): Option<CollectionDetailsArgs> =>
-  args.isCollection ? some(collectionDetails('V1', { size: 0 })) : none();
+  args.isCollection
+    ? some(collectionDetails('V2', { padding: new Array(8).fill(0) }))
+    : none();
 
 export const resolveIsNonFungible = (
   context: any,

clients/js/test/createV1.test.ts

@@ -235,11 +235,13 @@ test('it can create a new FungibleAsset', async (t) => {
   });
 });
 
-test('it can create a collection NonFungible', async (t) => {
+test('it can create a collection and defaults to collectionV2', async (t) => {
   // Given a new mint Signer.
   const umi = await createUmi();
   const mint = generateSigner(umi);
 
+  const collectionV2Padding = new Array(8).fill(0);
+
   // When we create a new NonFungible at this address.
   await createV1(umi, {
     mint,
@@ -249,6 +251,32 @@ test('it can create a collection NonFungible', async (t) => {
     isCollection: true,
   }).sendAndConfirm(umi);
 
+  // Then a Metadata account was created with the collection details set.
+  const metadata = findMetadataPda(umi, { mint: mint.publicKey });
+  const metadataAccount = await fetchMetadata(umi, metadata);
+  t.like(metadataAccount, <Metadata>{
+    publicKey: publicKey(metadata),
+    collectionDetails: some(
+      collectionDetails('V2', { padding: collectionV2Padding })
+    ),
+  });
+});
+
+test('it can create a collectionV1 NonFungible', async (t) => {
+  // Given a new mint Signer.
+  const umi = await createUmi();
+  const mint = generateSigner(umi);
+
+  // When we create a new NonFungible at this address.
+  await createV1(umi, {
+    mint,
+    name: 'My Collection NFT',
+    uri: 'https://example.com/my-collection-nft.json',
+    sellerFeeBasisPoints: percentAmount(5.5),
+    isCollection: true,
+    collectionDetails: some(collectionDetails('V1', { size: 0n })),
+  }).sendAndConfirm(umi);
+
   // Then a Metadata account was created with the collection details set.
   const metadata = findMetadataPda(umi, { mint: mint.publicKey });
   const metadataAccount = await fetchMetadata(umi, metadata);