https://github.com/edisonywh/manu

Manu is a proof-of-concept to see how would it look like to use changesets in Ecto tests.
https://github.com/edisonywh/manu

Last synced: 8 days ago
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Manu is a proof-of-concept to see how would it look like to use changesets in Ecto tests.

• Host: GitHub
• URL: https://github.com/edisonywh/manu
• Owner: edisonywh
• Created: 2020-06-20T05:27:39.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-06-20T05:30:12.000Z (over 4 years ago)
• Last Synced: 2023-03-02T23:25:57.182Z (almost 2 years ago)
• Language: Elixir
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Manu

## WARNING 🚨: Manu is a proof-of-concept to see how it would look like to use changesets with our test factories.

Manu allow you to create your test data and associations with custom changesets.

# Why Manu?

ExMachina is the popular alternative, but it does not come with good changeset support, and that is what Manu is trying to solve.

Disclaimer: I am not a heavy user of ExMachina so perhaps there are ways/patterns to make it work, I just find it peculiar that people seem to dislike it and I'd like to understand why and maybe start a conversation around it.

For reference: https://github.com/thoughtbot/ex_machina/pull/78

# What does Manu do different from ExMachina?

  - Everything is validated with changesets.

  - Encourages use of changesets, which is good to do.

  - Allows you to specify a changeset to be used while building a struct.

# Cons

- Usage can potentially get ugly, for example, the calls can look like so:

  - build(User)

  - build(User, :default)

  - build(User, :with_gmail)

  - build(User, :default, %{name: "new_name"})

  - build(User, :default, %{}, with: &User.email_changeset/2)

# Caveat

- Take `cast_assoc` and `put_assoc` for example, `cast` expects a map and `put` expects a struct, Manu follows the same way, so you need to be mindful about using `build` vs `params_for`.

# Example

For examples, look over in `manu_tests.exs`