packages/types/src/metadata/decorate/storage/index.spec.ts
// Copyright 2017-2024 @polkadot/types authors & contributors
// SPDX-License-Identifier: Apache-2.0
/// <reference types="@polkadot/dev-test/globals.d.ts" />
import { createTestPairs } from '@polkadot/keyring/testingPairs';
import rpcMetadata from '@polkadot/types-support/metadata/static-substrate';
import { u8aToHex } from '@polkadot/util';
import { xxhashAsHex } from '@polkadot/util-crypto';
import { TypeRegistry } from '../../../create/index.js';
import { Metadata } from '../../index.js';
import { decorateStorage } from '../index.js';
const keyring = createTestPairs({ type: 'ed25519' });
describe('decorateStorage', (): void => {
const registry = new TypeRegistry();
const metadata = new Metadata(registry, rpcMetadata);
registry.setMetadata(metadata);
const query = decorateStorage(registry, metadata.asLatest, metadata.version);
it('should throw if the storage function expects an argument', (): void => {
expect(() => query['balances']['account']()).toThrow('Call to balances.account needs 1 arguments, found []');
});
it('should throw if the storage function expects multiple arguments', (): void => {
expect(() => query['staking']['erasStakers']([1])).toThrow('Call to staking.erasStakers needs 2 arguments, found [1]');
});
it('should throw if the storage function expects tuple arguments', (): void => {
expect(() => query['staking']['erasStakers'](1)).toThrow('Call to staking.erasStakers needs 2 arguments, found [1]');
});
it('should return a value if the storage function does not expect an argument', (): void => {
expect(() => query['timestamp']['now']()).not.toThrow();
});
it('should return a value if the storage function has the correct arguments', (): void => {
expect(() => query['staking']['erasStakers'](1, keyring.alice.address)).not.toThrow();
});
it('should return the correct length-prefixed storage key', (): void => {
expect(
u8aToHex(query['system']['account'](keyring.alice.address))
).toEqual(
'0x' +
'4101' + // length
'26aa394eea5630e07c48ae0c9558cef7' + // System
'b99d880ec681799c0cf30e8886371da9' + // account
'de1e86a9a8c739864cf3cc5ec2bea59fd43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d'
);
});
it('should decorate the palletVersion entry', (): void => {
expect(
u8aToHex(query['system']['palletVersion']())
).toEqual(
'0x' +
'80' + // length
'26aa394eea5630e07c48ae0c9558cef7' + // System
xxhashAsHex(':__STORAGE_VERSION__:', 128).substring(2)
);
});
});