Test helpers for attached.
Use in test/support/ only — these bypass the LiveView upload flow and
assume you control the input file. Production code should go through
changesets (Attached.Ecto.Changeset.put_attached/3).
Summary
Functions
Attaches upload to record.field and returns the updated record.
Configures the Disk storage backend against a unique tmp directory and
registers an at_exit cleanup. Returns the storage root.
Functions
Attaches upload to record.field and returns the updated record.
upload accepts:
- a file path (binary) — filename and content type are inferred via
Path.basename/1andMIME.from_path/1 - a
%Plug.Upload{}or any map with:path(and optionally:filename,:content_type) - an existing
%Attached.Originals.Original{}— re-attached without storage I/O
The schema's resolved FK column is read from __attached_config__/1,
so per-field :foreign_key overrides and the global
:default_foreign_key_suffix config are both honored.
Example
user = insert(:user) |> Attached.Test.attach!(:avatar, "test/support/fixtures/red.png")Configures the Disk storage backend against a unique tmp directory and
registers an at_exit cleanup. Returns the storage root.
Call once from test_helper.exs:
Attached.Test.setup_storage!()
ExUnit.start()One directory is shared across the whole test run — async tests don't
need per-test isolation because original keys are already unique. The
directory is removed when the BEAM exits cleanly; if a test crashes
the runner, leftover dirs in /tmp/attached-test-* are safe to delete.
Options
:base_url— public base URL for served files (default"/attachments"):root— override the generated tmp path (mainly useful when you want a stable, gitignored path liketest/tmp/storage)