From f362836742aabd5b60b92c1296f2bbb6d83a3d59 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Fri, 24 Apr 2020 14:46:59 +0400
Subject: Support validation for inline OpenAPI schema and automatic tests for
 examples

---
 test/support/api_spec_helpers.ex | 57 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 test/support/api_spec_helpers.ex

(limited to 'test/support/api_spec_helpers.ex')

diff --git a/test/support/api_spec_helpers.ex b/test/support/api_spec_helpers.ex
new file mode 100644
index 000000000..80c69c788
--- /dev/null
+++ b/test/support/api_spec_helpers.ex
@@ -0,0 +1,57 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Tests.ApiSpecHelpers do
+  @moduledoc """
+  OpenAPI spec test helpers
+  """
+
+  import ExUnit.Assertions
+
+  alias OpenApiSpex.Cast.Error
+  alias OpenApiSpex.Reference
+  alias OpenApiSpex.Schema
+
+  def assert_schema(value, schema) do
+    api_spec = Pleroma.Web.ApiSpec.spec()
+
+    case OpenApiSpex.cast_value(value, schema, api_spec) do
+      {:ok, data} ->
+        data
+
+      {:error, errors} ->
+        errors =
+          Enum.map(errors, fn error ->
+            message = Error.message(error)
+            path = Error.path_to_string(error)
+            "#{message} at #{path}"
+          end)
+
+        flunk(
+          "Value does not conform to schema #{schema.title}: #{Enum.join(errors, "\n")}\n#{
+            inspect(value)
+          }"
+        )
+    end
+  end
+
+  def resolve_schema(%Schema{} = schema), do: schema
+
+  def resolve_schema(%Reference{} = ref) do
+    schemas = Pleroma.Web.ApiSpec.spec().components.schemas
+    Reference.resolve_schema(ref, schemas)
+  end
+
+  def api_operations do
+    paths = Pleroma.Web.ApiSpec.spec().paths
+
+    Enum.flat_map(paths, fn {_, path_item} ->
+      path_item
+      |> Map.take([:delete, :get, :head, :options, :patch, :post, :put, :trace])
+      |> Map.values()
+      |> Enum.reject(&is_nil/1)
+      |> Enum.uniq()
+    end)
+  end
+end
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