From f597099ad352b77ec6879354bdf34e6f4fde48cc Mon Sep 17 00:00:00 2001
From: Dimitris Zorbas <dimitrisplusplus@gmail.com>
Date: Mon, 6 Feb 2023 20:30:38 +0100
Subject: [PATCH 1/2] Accept dates and datetimes in formatted string schemas

---
 lib/open_api_spex/cast/string.ex |  5 +++++
 test/cast/string_test.exs        | 10 ++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/open_api_spex/cast/string.ex b/lib/open_api_spex/cast/string.ex
index 6820c04c..f9627029 100644
--- a/lib/open_api_spex/cast/string.ex
+++ b/lib/open_api_spex/cast/string.ex
@@ -6,10 +6,13 @@ defmodule OpenApiSpex.Cast.String do
   schema struct.
 
   """
+
   alias OpenApiSpex.{Cast, Cast.Error}
 
   @schema_fields [:maxLength, :minLength, :pattern]
 
+  def cast(%{value: %Date{} = date, schema: %{format: :date}}), do: {:ok, date}
+
   def cast(%{value: value, schema: %{format: :date}} = ctx) when is_binary(value) do
     case Date.from_iso8601(value) do
       {:ok, %Date{} = date} ->
@@ -20,6 +23,8 @@ defmodule OpenApiSpex.Cast.String do
     end
   end
 
+  def cast(%{value: %DateTime{} = date_time, schema: %{format: :"date-time"}}), do: {:ok, date_time}
+
   def cast(%{value: value, schema: %{format: :"date-time"}} = ctx) when is_binary(value) do
     case DateTime.from_iso8601(value) do
       {:ok, %DateTime{} = date_time, _offset} ->
diff --git a/test/cast/string_test.exs b/test/cast/string_test.exs
index b22e7f84..427c616a 100644
--- a/test/cast/string_test.exs
+++ b/test/cast/string_test.exs
@@ -32,8 +32,11 @@ defmodule OpenApiSpex.CastStringTest do
 
     test "string with format (date time)" do
       schema = %Schema{type: :string, format: :"date-time"}
-      time_string = DateTime.utc_now() |> DateTime.to_string()
+      time = DateTime.utc_now()
+      time_string = to_string(time)
+
       assert {:ok, %DateTime{}} = cast(value: time_string, schema: schema)
+      assert {:ok, ^time} = cast(value: time, schema: schema)
       assert {:error, [error]} = cast(value: "hello", schema: schema)
       assert error.reason == :invalid_format
       assert error.value == "hello"
@@ -42,8 +45,11 @@ defmodule OpenApiSpex.CastStringTest do
 
     test "string with format (date)" do
       schema = %Schema{type: :string, format: :date}
-      date_string = DateTime.utc_now() |> DateTime.to_date() |> Date.to_string()
+      date = Date.utc_today()
+      date_string = to_string(date)
+
       assert {:ok, %Date{}} = cast(value: date_string, schema: schema)
+      assert {:ok, ^date} = cast(value: date, schema: schema)
       assert {:error, [error]} = cast(value: "hello", schema: schema)
       assert error.reason == :invalid_format
       assert error.value == "hello"

From 59aeefc48115b127deec3dc2afc9e80d48c383de Mon Sep 17 00:00:00 2001
From: Dimitris Zorbas <dimitrisplusplus@gmail.com>
Date: Tue, 7 Feb 2023 11:41:52 +0100
Subject: [PATCH 2/2] Pin Ubuntu version of CI test runs

ubuntu-latest now points to 22.04 for which hex.pm does not have
older OTP builds.

See:

* https://repo.hex.pm/builds/otp/ubuntu-22.04/builds.txt
* https://repo.hex.pm/builds/otp/ubuntu-20.04/builds.txt
---
 .github/workflows/elixir.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 0842c541..e2cf4200 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -61,7 +61,7 @@ jobs:
         run: mix do deps.get, test
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     name: Test (OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}})
     strategy:
       matrix: