Solana: Signature verification failed. Missing signature for public key(s) [key1, key2] in jest test using anchor

I can help you write an article about Solana: Signature verification failed because public key signatures were missing in the Anchor test.

Title:

Solana Signature Verification Failed: A Guide to Fixing This Issue in Jest Tests with Anchors

Sample:

Solana is a fast and scalable blockchain platform that allows developers to quickly build distributed applications (dApps). However, like any other blockchain, it relies on signatures to verify transactions and maintain the integrity of the network. In this article, we will explore why signature verification failed in our Jest tests with Anchor and provide instructions on how to resolve the issue.

What does signature verification fail mean:

A signature verification error occurs when a test attempts to sign a transaction but cannot obtain the required signature for the public keys to be verified. This can happen for a number of reasons, including:

• Missing signatures (also known as “missing signers”)

• Incorrect private keys

• Private key circulation issues

Example mock test:

Let’s look at an example of how we can test this scenario using Jest and Anchor:

import { AnchorContract } from '@coral-xyz/anchor';
import { Program } from '@coral-xyz/anchor';
import { RoyaltyNft } from '../target/types/royalty_nft';
const contract = new AnchorContract(RoyaltyNft);
description('Signature verification failed', () => {
it('should throw an error when signatures are missing', async () => {
// Create a test account with the public key
const publicKey1 = '0x1234567890abcdef1234def567890abfedcba';
const privateKey1 = '0x...'; // Replace with the actual private key
// Create another test account with an additional public key
const publicKey2 = '0x...'; // Replace with the actual private key
try {
await contract.signPublicKey(
publickey1,
privateKey1, // Correct public key 1 signature
publickey2,
privateKey2 // Public key 2 signature missing
);
throw new Error('Expected error');
} catch (error) {
expect(error.message).toBe('Missing public key signatures');
}
});
});

In this example, we create two test accounts with different public keys. Then, we try to sign a transaction using the first public key, but it fails due to missing signatures. The `expect'' command checks to see if an error message is thrown indicating that the second public key is missing signatures.

Fix signature verification failed in Jest tests:

To fix this issue:

• Verify private keys: Make sure your test accounts have the correct private keys.

• UpdatesignPublicKeyfunction: Modify thesignPublicKeyfunction to accept a public key map for signatures and an additional parameter for missing signatures.

• Add error handling

  : Wrap thesignPublicKey’ call in a try-catch block to catch any errors that might occur due to missing signatures.

Here is an updated example:

“` javascript

import { AnchorContract } from ‘@coral-xyz/anchor’;

import { Program } from ‘@coral-xyz/anchor’;

import { RoyaltyNft } from ‘../target/types/royalty_nft’;

const contract = new AnchorContract(RoyaltyNft);

description(‘Signature verification failed’, () => {

it(‘should throw an error when signatures are missing’, async () => {

// Create a test account with a public key

const publicKey1 = ‘0x1234567890abcdef1234def567890abfedcba’;

const privateKey1 = ‘0x…’; // Replace with real private key

try {

waiting for contract.

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