File Content: index.tests.ts import * as diffObj from './index' const {diff, jsonPatchPathConverter} = diffObj; const obj1 = {a: 2, b: 3}; const obj2 = {a: 2, c: 1}; const arr1 = [1, 'bee']; const arr2 = [2, 'bee']; //OK diff(obj1, obj2); diff(arr1, arr2); diff(obj1, arr1); diff(obj2, arr2); diff(/yes/, arr1); diff(new Date(), arr2); diff(obj1, obj2, jsonPatchPathConverter); diff(arr1, arr2, jsonPatchPathConverter); diff(obj1, arr1, jsonPatchPathConverter); diff(obj2, arr2, jsonPatchPathConverter); // not OK // @ts-expect-error diff(obj1); // @ts-expect-error diff(arr2); // @ts-expect-error diff('a'); // @ts-expect-error diff(true); // @ts-expect-error diff(obj1, 1); // @ts-expect-error diff(3, arr2); // @ts-expect-error diff(obj1, 'a'); // @ts-expect-error diff('b', arr2); // @ts-expect-error diff('a', jsonPatchPathConverter); // @ts-expect-error diff(true, jsonPatchPathConverter); // @ts-expect-error diff(obj1, 1, jsonPatchPathConverter); // @ts-expect-error diff(3, arr2, jsonPatchPathConverter); // @ts-expect-error diff(obj1, 'a', jsonPatchPathConverter); // @ts-expect-error diff('b', arr2, jsonPatchPathConverter); // @ts-expect-error diff(obj1, obj2, 'a'); // @ts-expect-error diff(arr1, arr2, 1); // @ts-expect-error diff(obj1, arr1, 'bee'); // @ts-expect-error diff(obj2, arr2, 'nope'); Submit