componentDidUpdate is not called when a component calls setState()

[ajbogh]

When a component uses setState() the componentDidUpdate call is supposed to fire and any code within it is supposed to be executed. Enzyme 3.4.1 does not execute the cDU code when setState() is called within the component.

To Reproduce
Steps to reproduce the behavior:

1. Make sure enzyme 3.4.1 is installed: npm install enzyme@3.4.1
2. Create a component that takes a callback prop, contains the componentDidUpdate method and another method that calls setState(). The cDU method should execute the callback when it's fired.
3. Create a test which spies on the callback prop and executes the component method which calls setState()
4. Notice that the cDU is not executed

Expected behavior
cDU should be executed when a component's setState is called.

Desktop (please complete the following information):

• OS: iOS
• Browser Node
• Version 8.11.3

Additional context
#1452
#1742 (comment)

Code Sample

https://github.com/ajbogh/enzyme-setstate-bug

[koba04]

@ajbogh #1742 isn't included v3.4.1 so please wait for the next release!

[ajbogh]

Oh. Thanks @koba04. My mistake. I'll check back when the release happens.

[ljharb]

v3.4.2 is released; I'll reopen this if the issue isn't addressed.

[ajbogh]

v3.4.2 fixed the issue! Thanks for the great work.