Add a generator for DBIServer.

test/support/generators.ex

@@ -69,6 +69,31 @@ defmodule DecentralisedBookIndex.Generators do
     end
   end
 
+  def dbi_server(opts \\ []) do
+    actor =
+      opts[:actor] ||
+        once(:default_actor, fn ->
+          generate(user())
+        end)
+
+    url =
+      opts[:url] ||
+        once(:default_actor, fn ->
+          "http://localhost:4002"
+        end)
+
+    changeset_generator(
+      Metadata.DBIServer,
+      :create,
+      defaults: [
+        name: sequence(:name, &"Server #{&1}"),
+        url: url
+      ],
+      overrides: opts,
+      actor: actor
+    )
+  end
+
   @doc """
   Generates a list of bids.