# `Soundcheck.Check.Warning.UnhandledInfoMessage`
[🔗](https://github.com/leonqadirie/soundcheck/blob/v0.1.0/lib/soundcheck/check/warning/unhandled_info_message.ex#L1)

## Basics

> #### This check is disabled by default. {: .neutral}
>
> [Learn how to enable it](`e:credo:config_file.html#checks`) via `.credo.exs`.

This check has a base priority of `high` and works with any version of Elixir.

## Explanation

Flags messages a LiveView sends to itself (`send(self(), msg)`,
`Process.send/3`, `Process.send_after/3`) that no `handle_info/2`
clause accepts. LiveView crashes the process on an unhandled message.

Before:

    def mount(_params, _session, socket) do
      if connected?(socket), do: Process.send_after(self(), :tick, 1000)
      {:ok, socket}
    end

After:

    def handle_info(:tick, socket), do: {:noreply, update(socket, :now, &tick/1)}

Only literal messages are checked: an atom, or a tuple tagged with an
atom (`{:loaded, data}` matches a `{:loaded, _}` clause). A
`handle_info(msg, socket)` catch-all accepts everything. A
LiveComponent runs in its parent LiveView's process, so its messages
to `self()` are checked against every LiveView that renders it.

Handlers attached with `attach_hook/4` (in the module or its
`on_mount` hooks) make the finding unverifiable; it appears only in
strict mode.

Confidence: high. Tier: semantic (run `mix compile` before `mix credo`).

## Check-Specific Parameters

Use the following parameters to configure this check:

### `:excluded_paths`

  Paths to skip (atoms, binaries as path segments, or regexes).

*This parameter defaults to* `[~r/\/test\//, "test"]`.

### `:strict`

  Report unverifiable findings too.

*This parameter defaults to* `false`.

## General Parameters

Like with all checks, [general params](`e:credo:check_params.html`) can be applied.

Parameters can be configured via the [`.credo.exs` config file](`e:credo:config_file.html`).

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*Consult [api-reference.md](api-reference.md) for complete listing*