scottswezey

scottswezey

Testing Elixir: logic error in code sample: with_authenticated_user/1 (Page 25)

The with_authenticated_user/1 code sample on PDF page 25 in B2.0 returns the user object, and not the authenticated_user object as I expect it should. Leaving the code as-is would probably be considered a logic error in a real application, and may be confusing to some readers of the book.

Current code:

def with_authenticated_user(context) do
    user = User.create(%{name: "Bob Robertson"})
    authenticated_user = TestHelper.authenticate(user)

    Map.put(context, :authenticated_user, user) # Error here
end

Fixed code:

def with_authenticated_user(context) do
    user = User.create(%{name: "Bob Robertson"})
    authenticated_user = TestHelper.authenticate(user)

    Map.put(context, :authenticated_user, authenticated_user) # Fixed
end

Marked As Solved

idlehands

idlehands

Author of Testing Elixir

@scottswezey As we are prepping for production, I finally made this fix. Thanks again for catching it. It was a great call out. Alas, the sample code probably won’t be updated until the book is finalized.

Also Liked

scottswezey

scottswezey

This error is still present in B3.0.

idlehands

idlehands

Author of Testing Elixir

Thanks! I’m sorry we missed this in the last release. The errata system currently leaves a bit to be desired. We will make sure the code is updated for the next beta.

idlehands

idlehands

Author of Testing Elixir

I lied. But it will be updated by the time we roll out the final. Sorry… been a bit overwhelmed.

Where Next?

Popular Pragmatic Bookshelf topics Top

jimmykiang
This test is broken right out of the box… — FAIL: TestAgent (7.82s) agent_test.go:77: Error Trace: agent_test.go:77 agent_test.go:...
New
jeffmcompsci
Title: Design and Build Great Web APIs - typo “https://company-atk.herokuapp.com/2258ie4t68jv” (page 19, third bullet in URL list) Typo:...
New
simonpeter
When I try the command to create a pair of migration files I get an error. user=> (create-migration "guestbook") Execution error (Ill...
New
joepstender
The generated iex result below should list products instead of product for the metadata. (page 67) iex> product = %Product{} %Pento....
New
rmurray10127
Title: Intuitive Python: docker run… denied error (page 2) Attempted to run the docker command in both CLI and Powershell PS C:\Users\r...
New
adamwoolhether
When trying to generate the protobuf .go file, I receive this error: Unknown flag: --go_opt libprotoc 3.12.3 MacOS 11.3.1 Googling ...
New
jskubick
I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint. How to replicate: load chapter-7 from zipfile i...
New
Charles
In general, the book isn’t yet updated for Phoenix version 1.6. On page 18 of the book, the authors indicate that an auto generated of ro...
New
s2k
Hi all, currently I wonder how the Tailwind colours work (or don’t work). For example, in app/views/layouts/application.html.erb I have...
New
redconfetti
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New

Other popular topics Top

PragmaticBookshelf
Write Elixir tests that you can be proud of. Dive into Elixir’s test philosophy and gain mastery over the terminology and concepts that u...
New
DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
Rainer
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
New
AstonJ
There’s a whole world of custom keycaps out there that I didn’t know existed! Check out all of our Keycaps threads here: https://forum....
New
PragmaticBookshelf
Build highly interactive applications without ever leaving Elixir, the way the experts do. Let LiveView take care of performance, scalabi...
New
husaindevelop
Inside our android webview app, we are trying to paste the copied content from another app eg (notes) using navigator.clipboard.readtext ...
New
CommunityNews
A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
New
PragmaticBookshelf
Get the comprehensive, insider information you need for Rails 8 with the new edition of this award-winning classic. Sam Ruby @rubys ...
New
AstonJ
Curious what kind of results others are getting, I think actually prefer the 7B model to the 32B model, not only is it faster but the qua...
New
Fl4m3Ph03n1x
Background Lately I am in a quest to find a good quality TTS ai generation tool to run locally in order to create audio for some videos I...
New

Sub Categories: