codama-idl-codama/packages/nodes-from-anchor/test/discriminator.test.ts

import { bytesValueNode } from '@kinobi-so/nodes';
import { expect, test } from 'vitest';

import { getAnchorAccountDiscriminatorV00, getAnchorInstructionDiscriminatorV00 } from '../src/index.js';

test('it can compute the discriminator of an Anchor account', () => {
    // Given an account named "StakeEntry" on the IDL.
    const idlName = 'StakeEntry';

    // When we compute its Anchor discriminator.
    const discriminator = getAnchorAccountDiscriminatorV00(idlName);

    // Then we get the expected value.
    expect(discriminator).toEqual(bytesValueNode('base16', 'bb7f09239b445628'));
});

test('it can compute the discriminator of an Anchor instruction', () => {
    // Given an instruction named "addConfigLines" on the IDL.
    const idlName = 'addConfigLines';

    // When we compute its Anchor discriminator.
    const discriminator = getAnchorInstructionDiscriminatorV00(idlName);

    // Then we get the expected value.
    expect(discriminator).toEqual(bytesValueNode('base16', 'df32e0e39708736a'));
});