packages/rpc-provider/src/coder/error.spec.ts
// Copyright 2017-2024 @polkadot/rpc-provider authors & contributors
// SPDX-License-Identifier: Apache-2.0
/// <reference types="@polkadot/dev-test/globals.d.ts" />
import { isError } from '@polkadot/util';
import RpcError from './error.js';
describe('RpcError', (): void => {
describe('constructor', (): void => {
it('constructs an Error that is still an Error', (): void => {
expect(
isError(
new RpcError()
)
).toEqual(true);
});
});
describe('static', (): void => {
it('exposes the .CODES as a static', (): void => {
expect(
Object.keys(RpcError.CODES)
).not.toEqual(0);
});
});
describe('constructor properties', (): void => {
it('sets the .message property', (): void => {
expect(
new RpcError('test message').message
).toEqual('test message');
});
it("sets the .message to '' when not set", (): void => {
expect(
new RpcError().message
).toEqual('');
});
it('sets the .code property', (): void => {
expect(
new RpcError('test message', 1234).code
).toEqual(1234);
});
it('sets the .code to UKNOWN when not set', (): void => {
expect(
new RpcError('test message').code
).toEqual(RpcError.CODES.UNKNOWN);
});
it('sets the .data property', (): void => {
const data = 'here';
expect(
new RpcError('test message', 1234, data).data
).toEqual(data);
});
it('sets the .data property to generic value', (): void => {
const data = { custom: 'value' } as const;
expect(
new RpcError('test message', 1234, data).data
).toEqual(data);
});
});
describe('stack traces', (): void => {
// eslint-disable-next-line @typescript-eslint/ban-types
let captureStackTrace: (targetObject: Record<string, any>, constructorOpt?: Function | undefined) => void;
beforeEach((): void => {
captureStackTrace = Error.captureStackTrace;
Error.captureStackTrace = function (error): void {
Object.defineProperty(error, 'stack', {
configurable: true,
get: function getStack (): string {
const value = 'some stack returned';
Object.defineProperty(this, 'stack', { value });
return value;
}
});
};
});
afterEach((): void => {
Error.captureStackTrace = captureStackTrace;
});
it('captures via captureStackTrace when available', (): void => {
expect(
new RpcError().stack
).toEqual('some stack returned');
});
it('captures via stack when captureStackTrace not available', (): void => {
// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
Error.captureStackTrace = null as any;
expect(
new RpcError().stack.length
).not.toEqual(0);
});
});
});