geninq/src/functions/except.test.ts

A JavaScript version of the Linq library for Generators

import { It } from "../test-utils";
import "./except";
import "./array";

It("Will except on numbers", (g) => g.except([2]).array(), [1, 3], [1, 2, 3]);
It(
  "Will except on strings",
  (g) => g.except(["2"]).array(),
  ["1", "3"],
  ["1", "2", "3"]
);
It(
  "Will except on booleans",
  (g) => g.except([false]).array(),
  [true],
  [true, false]
);
It(
  "Will except on custom comparitor",
  (g) => g.except([{ test: 2 }], (a, b) => a.test === b.test).array(),
  [{ test: 1 }, { test: 3 }],
  [{ test: 1 }, { test: 2 }, { test: 3 }]
);
It(
  "Will except on custom comparitor with a complex sequence",
  (g) => g.except([{ test: 2 }], (a, b) => a.test === b.test).array(),
  [
    { test: 1 },
    { test: 3 },
    { test: 4 },
    { test: 5 },
    { test: 1 },
    { test: 4 },
  ],
  [
    { test: 1 },
    { test: 2 },
    { test: 3 },
    { test: 2 },
    { test: 4 },
    { test: 5 },
    { test: 1 },
    { test: 2 },
    { test: 4 },
  ]
);