Add tests for Publisher resource.

test/decentralised_book_index/metadata/publisher_test.exs

@@ -0,0 +1,30 @@
+defmodule DecentralisedBookIndex.Metadata.PublisherTest do
+  use DecentralisedBookIndex.DataCase, async: true
+
+  alias DecentralisedBookIndex.Metadata
+
+  alias DecentralisedBookIndex.TestEndpoints
+  @test_server_endpoint TestEndpoints.test_api_endpoint()
+
+  setup do
+    user = generate(user(role: :moderator))
+    %{user: user}
+  end
+
+  describe "create a publisher" do
+    test "create a new publisher", %{user: user} do
+      assert {:ok, publisher} = Metadata.create_publisher("Publisher", actor: user)
+      assert publisher.name == "Publisher"
+    end
+  end
+
+  describe "publisher and DBIServer relationship" do
+    test "assign a DBIServer", %{user: user} do
+      server = generate(dbi_server(url: @test_server_endpoint))
+
+      assert {:ok, publisher} = Metadata.create_publisher("Publisher", actor: user)
+      assert {:ok, publisher} = Metadata.assign_publisher_dbi_server(publisher, server.id, actor: user)
+      assert publisher.dbi_server_id == server.id
+    end
+  end
+end