Method asymmetricMatch

packages/expect/src/asymmetricMatchers.ts:229–238

(other: unknown)

class ArrayOf extends AsymmetricMatcher<unknown> {
  asymmetricMatch(other: unknown) {
    const matcherContext = this.getMatcherContext();
    const result =
      Array.isArray(other) &&
      other.every(item =>
        equals(this.sample, item, matcherContext.customTesters),
      );

    return this.inverse ? !result : result;
  }

  toString() {
    return `${this.inverse ? 'Not' : ''}ArrayOf`;