Function expectUpdates

packages/react-dom/src/__tests__/ReactUpdates-test.js:598–608

(desiredWillUpdates, desiredDidUpdates)

    });

    function expectUpdates(desiredWillUpdates, desiredDidUpdates) {
      let i;
      for (i = 0; i < desiredWillUpdates; i++) {
        expect(willUpdates).toContain(desiredWillUpdates[i]);
      }
      for (i = 0; i < desiredDidUpdates; i++) {
        expect(didUpdates).toContain(desiredDidUpdates[i]);
      }
      willUpdates = [];
      didUpdates = [];
    }

    function triggerUpdate(c) {
      c.setState({x: 1});