index.ts

import test from "ava";
import { dataInvariants } from "..";

const JSON2 = (j) => JSON.stringify(j, null, 2);

test(`exclusion patterns`, (t) => {
  const data = {
    deep: {
      active: true,
      children: [
        {
          lastActive: Date.now() - Math.random() * 24 * 3600 * 100,
          name: "john",
        },
        {
          lastActive: Date.now() - Math.random() * 24 * 3600 * 100,
          name: "alice",
        },
      ],
      id: 1,
      inf: Infinity,
      ninf: -Infinity,
      null: null,
    },
    key: "Invariant Key",
    obj: {},
    arr: [],
    bool: Math.random() < 0.5,
    signature: Math.random(),
    timestamp: Date.now(),
  };
  const variantFilters = [
    "!**/timestamp",
    "!**/signature",
    "!**/lastActive",
    "!**/obj",
    "!**/arr",
    "!**/bool",
  ];
  const invariant = dataInvariants(data, variantFilters);
  try {
    t.snapshot(invariant);
  } catch (err) {
    console.error(JSON2({ data, variantFilters }));
    throw err;
  }
});