Method assert

lib/internal/test_runner/test.js:329–359

()

  }

  get assert() {
    if (this.#assert === undefined) {
      const { plan } = this.#test;
      const map = lazyAssertObject(this.#test.root.harness);
      const assert = { __proto__: null };

      this.#assert = assert;
      map.forEach((method, name) => {
        assert[name] = (...args) => {
          if (plan !== null) {
            plan.count();
          }
          return ReflectApply(method, this, args);
        };
      });

      if (!map.has('ok')) {
        // This is a hack. It allows the innerOk function to collect the
        // stacktrace from the correct starting point.
        function ok(...args) {
          if (plan !== null) {
            plan.count();
          }
          innerOk(ok, ...args);
        }

        assert.ok = ok;
      }
    }
    return this.#assert;
  }

  get mock() {
    this.#test.mock ??= new MockTracker();