# `Excessibility.System`
[🔗](https://github.com/lessthanseventy/excessibility/blob/v0.18.1/lib/system.ex#L1)

Default implementation for system commands.

Opens files in the system's default browser. This is used during interactive
diff resolution to show `.good.html` and `.bad.html` files side by side.

## Mocking for CI

In CI environments, you typically want to mock this module to avoid
opening browsers:

    # test/test_helper.exs
    Mox.defmock(Excessibility.SystemMock, for: Excessibility.SystemBehaviour)
    Application.put_env(:excessibility, :system_mod, Excessibility.SystemMock)

    # In tests
    stub(Excessibility.SystemMock, :open_with_system_cmd, fn _path -> :ok end)

# `open_with_system_cmd`

Opens a file in the system's default browser.

Uses platform-appropriate commands:
- macOS: `open`
- Linux: `xdg-open`
- Windows: `start`

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