Function assertIsValidInjector

test/Injector.test.js:15–25

(injectorInstance)

    let ValidInjectable;

    function assertIsValidInjector(injectorInstance) {
      const actual = typeof injectorInstance === `function` &&
        !!injectorInstance.contextTypes &&
        !!injectorInstance.contextTypes.registerInjector &&
        !!injectorInstance.contextTypes.updateInjector &&
        !!injectorInstance.contextTypes.removeInjector;

      const expected = true;

      expect(actual).to.equal(expected, `Invalid Injector created.`);
    }

    beforeEach(() => {
      ValidInjectable = Injectable(() => <div>foo</div>);