https://github.com/siiibo/assert_match

Leverages pattern matching & pipeline in Elixir tests!
https://github.com/siiibo/assert_match

elixir testing

Last synced: 3 months ago
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Leverages pattern matching & pipeline in Elixir tests!

• Host: GitHub
• URL: https://github.com/siiibo/assert_match
• Owner: siiibo
• License: apache-2.0
• Created: 2022-09-13T12:21:01.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2025-01-31T06:52:51.000Z (over 1 year ago)
• Last Synced: 2025-10-21T15:51:30.416Z (8 months ago)
• Topics: elixir, testing
• Language: Elixir
• Homepage:
• Size: 62.5 KB
• Stars: 8
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# AssertMatch

[![Elixir CI](https://github.com/siiibo/assert_match/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/siiibo/assert_match/actions/workflows/build.yml)

Leverages pattern matching & pipeline in Elixir tests!

## Motivation

In short, we wanted this:

```elixir

test "/some/api should work", context do

  conn

  |> post("/some/api")

  |> json_response(200)

  |> assert_match(%{

    "success" => true,

    "id" => ^context.some_fixture.id,

    "bytesize" => ^byte_size(context.some_fixture.contents)

  })

end

```

* **Write assertions in pipeline**

* **Assert by patterns**, not just concrete values (utilizing pattern-matching diffs in Elixir 1.10+)

* Expand **function calls inside pins**, inspired by [Ecto.Query](https://hexdocs.pm/ecto/Ecto.Query.html#module-interpolation-and-casting)

### Introductory talk



## Installation

```elixir

def deps do

  [

    # If available in Hex

    {:assert_match, "~> 1.0", only: [:test]}

    # If not, or, if you need bleeding edge

    {:assert_match, github: "siiibo/assert_match", ref: "main", only: [:test]}

  ]

end

```