Add burn tests

clients/js/test/burn.test.ts

@@ -0,0 +1,87 @@
+import { assertAccountExists, generateSigner, sol} from '@metaplex-foundation/umi';
+import test from 'ava';
+// import { base58 } from '@metaplex-foundation/umi/serializers';
+import { Asset, DataState, create, fetchAsset, burn, Key } from '../src';
+import { createUmi } from './_setup';
+
+test('it can burn an asset as the owner', async (t) => {
+  // Given a Umi instance and a new signer.
+  const umi = await createUmi();
+  const assetAddress = generateSigner(umi);
+
+  // When we create a new account.
+  await create(umi, {
+    dataState: DataState.AccountState,
+    assetAddress,
+    name: 'Test Bread',
+    uri: 'https://example.com/bread',
+  }).sendAndConfirm(umi);
+
+  // Then an account was created with the correct data.
+  const beforeAsset = await fetchAsset(umi, assetAddress.publicKey);
+  // console.log("Account State:", beforeAsset);
+  t.like(beforeAsset, <Asset>{
+    publicKey: assetAddress.publicKey,
+    updateAuthority: umi.identity.publicKey,
+    owner: umi.identity.publicKey,
+    name: 'Test Bread',
+    uri: 'https://example.com/bread',
+  });
+
+  await burn(umi, {
+    assetAddress: assetAddress.publicKey,
+    compressionProof: null
+  }).sendAndConfirm(umi);
+
+  // And the asset address still exists but was resized to 1.
+  const afterAsset = await umi.rpc.getAccount(assetAddress.publicKey);
+  t.true(afterAsset.exists);
+  assertAccountExists(afterAsset);
+  t.deepEqual(afterAsset.lamports, sol(0.00089784));
+  t.is(afterAsset.data.length, 1);
+  t.is(afterAsset.data[0], Key.Uninitialized);
+});
+
+test('it cannot burn an asset if not the owner', async (t) => {
+  // Given a Umi instance and a new signer.
+  const umi = await createUmi();
+  const assetAddress = generateSigner(umi);
+  const attacker = generateSigner(umi);
+
+  // When we create a new account.
+  await create(umi, {
+    dataState: DataState.AccountState,
+    assetAddress,
+    name: 'Test Bread',
+    uri: 'https://example.com/bread',
+  }).sendAndConfirm(umi);
+
+  // Then an account was created with the correct data.
+  const beforeAsset = await fetchAsset(umi, assetAddress.publicKey);
+  // console.log("Account State:", beforeAsset);
+  t.like(beforeAsset, <Asset>{
+    publicKey: assetAddress.publicKey,
+    updateAuthority: umi.identity.publicKey,
+    owner: umi.identity.publicKey,
+    name: 'Test Bread',
+    uri: 'https://example.com/bread',
+  });
+
+  const result = burn(umi, {
+    assetAddress: assetAddress.publicKey,
+    compressionProof: null,
+    authority: attacker,
+  }).sendAndConfirm(umi);
+
+  await t.throwsAsync(result, { name: 'InvalidAuthority' })
+
+  const afterAsset = await fetchAsset(umi, assetAddress.publicKey);
+  // console.log("Account State:", afterAsset);
+  t.like(afterAsset, <Asset>{
+    publicKey: assetAddress.publicKey,
+    updateAuthority: umi.identity.publicKey,
+    owner: umi.identity.publicKey,
+    name: 'Test Bread',
+    uri: 'https://example.com/bread',
+  });
+});