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			44 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| defmodule Livebook.DataCase do
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|   @moduledoc """
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|   This module defines the setup for tests requiring
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|   access to the application's data layer.
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| 
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|   You may define functions here to be used as helpers in
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|   your tests.
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| 
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|   Finally, if the test case interacts with the database,
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|   we enable the SQL sandbox, so changes done to the database
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|   are reverted at the end of every test. If you are using
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|   PostgreSQL, you can even run database tests asynchronously
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|   by setting `use Livebook.DataCase, async: true`, although
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|   this option is not recommended for other databases.
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|   """
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| 
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|   use ExUnit.CaseTemplate
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| 
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|   using do
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|     quote do
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|       import Ecto
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|       import Ecto.Changeset
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|       import Ecto.Query
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|       import Livebook.DataCase
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|       import Livebook.Factory
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|     end
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|   end
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| 
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|   @doc """
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|   A helper that transforms changeset errors into a map of messages.
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| 
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|       assert {:error, changeset} = Accounts.create_user(%{password: "short"})
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|       assert "password is too short" in errors_on(changeset).password
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|       assert %{password: ["password is too short"]} = errors_on(changeset)
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| 
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|   """
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|   def errors_on(changeset) do
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|     Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
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|       Regex.replace(~r"%{(\w+)}", message, fn _, key ->
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|         opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
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|       end)
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|     end)
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|   end
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| end
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