Improvement of type spec for balance method of bank account exercidse (…

…#1350)
exercism · Aug 29, 2023 · c2f2423 · c2f2423
1 parent c6135de
commit c2f2423
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/exercises/practice/bank-account/.meta/example.ex b/exercises/practice/bank-account/.meta/example.ex
@@ -73,7 +73,7 @@ defmodule BankAccount do
   @doc """
   Get the account's balance.
   """
-  @spec balance(account) :: integer
+  @spec balance(account) :: integer | {:error, :account_closed}
   def balance(account) do
     if Process.alive?(account) do
       GenServer.call(account, :balance)

diff --git a/exercises/practice/bank-account/lib/bank_account.ex b/exercises/practice/bank-account/lib/bank_account.ex
@@ -25,7 +25,7 @@ defmodule BankAccount do
   @doc """
   Get the account's balance.
   """
-  @spec balance(account) :: integer
+  @spec balance(account) :: integer | {:error, :account_closed}
   def balance(account) do
   end