metadata.test.ts

import { Metadata } from './metadata.ts';
import { assertEquals } from './vendor/https/deno.land/std/testing/asserts.ts';

Deno.test('getting and setting metadata', () => {
  const metadata = new Metadata();
  class A {}
  class B {}

  metadata.defineMetadata(A, 'foo', 'foo');
  metadata.defineMetadata(B, 'bar', 'bar');

  assertEquals(metadata.getMetadata(A, 'foo'), 'foo');
  assertEquals(metadata.getMetadata(B, 'bar'), 'bar');
  assertEquals(metadata.getMetadata(A, 'bar'), undefined);
  assertEquals(metadata.getMetadata(B, 'foo'), undefined);
});

Deno.test('clearing metadata', () => {
  const metadata = new Metadata();
  class A {}
  class B {}

  metadata.defineMetadata(A, 'foo', 'foo');
  metadata.defineMetadata(B, 'bar', 'bar');
  metadata.clear();

  assertEquals(metadata.getMetadata(A, 'foo'), undefined);
  assertEquals(metadata.getMetadata(B, 'bar'), undefined);
});