Function expectToBeAStack

test/internal/getReactStack.test.js:92–99

(child)

    expect(stack.children[0].children).toHaveLength(2);

    function expectToBeAStack(child) {
      expect(child.type).toBe(A);
      expect(child.instance).toBeInstanceOf(A);
      expect(child.children).toHaveLength(1);
      expect(child.children[0].type).toBe('div');
      expect(child.children[0].instance).toBeDefined();
      expect(child.children[0].children).toHaveLength(0);
    }

    function expectToBeBStack(child) {
      expect(child.type).toBe(B);