feat(wallet-manager): change password

.changeset/stupid-baboons-smell.md

@@ -0,0 +1,5 @@
+---
+"@fuel-ts/wallet-manager": minor
+---
+
+feat(wallet-manager): change password method

packages/wallet-manager/src/wallet-manager.test.ts

@@ -309,4 +309,16 @@ describe('Wallet Manager', () => {
       walletManager.exportVault(1);
     }).toThrow();
   });
+
+  it('Change password', async () => {
+    const { walletManager, password } = await setupWallet({
+      type: 'mnemonic',
+      secret: WalletManagerSpec.mnemonic,
+    });
+
+    const newPassword = 'foo12345678';
+    await walletManager.changePassword(newPassword, password);
+
+    expect(walletManager.unlock(newPassword)).resolves.not.toThrow();
+  });
 });

packages/wallet-manager/src/wallet-manager.ts

@@ -206,6 +206,14 @@ export class WalletManager extends EventEmitter {
     this.emit('unlock');
   }
 
+  async changePassword(newPassphrase: string, oldPassphrase: string) {
+    await this.unlock(oldPassphrase);
+    this.#passphrase = newPassphrase;
+    this.#isLocked = false;
+    await this.saveState();
+    await this.lock();
+  }
+
   /**
    * Retrieve and decrypt WalletManager state from storage
    */