@ethereum-waffle/chai

Version:

A sweet set of chai matchers for your blockchain testing needs.

11 lines (9 loc) • 279 B

text/typescript

interface ErrorConstructor<T extends any[]> {
  new (...args: T): Error;
}

export function ensure<T extends any[]>(condition: boolean, ErrorToThrow: ErrorConstructor<T>, ...errorArgs: T):
  asserts condition {
  if (!condition) {
    throw new ErrorToThrow(...errorArgs);
  }
}