feat: domain event bus for multi-client sync (issue #26, phase 2)

test/bds/events_test.exs

@@ -0,0 +1,123 @@
+defmodule BDS.EventsTest do
+  use ExUnit.Case, async: false
+
+  alias BDS.Events
+
+  setup do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(BDS.Repo)
+    :ok = Events.subscribe()
+
+    temp_dir = Path.join(System.tmp_dir!(), "bds-events-#{System.unique_integer([:positive])}")
+    File.mkdir_p!(temp_dir)
+    on_exit(fn -> File.rm_rf(temp_dir) end)
+
+    {:ok, project} = BDS.Projects.create_project(%{name: "Events", data_path: temp_dir})
+    %{project: project}
+  end
+
+  describe "entity_changed/3" do
+    test "broadcasts the watcher-compatible payload" do
+      :ok = Events.entity_changed("post", "abc", :updated)
+
+      assert_receive {:entity_changed, %{entity: "post", entity_id: "abc", action: :updated}}
+    end
+  end
+
+  describe "posts broadcast" do
+    test "create, update, publish, delete", %{project: project} do
+      {:ok, post} = BDS.Posts.create_post(%{project_id: project.id, title: "Hello"})
+      post_id = post.id
+      assert_receive {:entity_changed, %{entity: "post", entity_id: ^post_id, action: :created}}
+
+      {:ok, _} = BDS.Posts.update_post(post_id, %{title: "Hello 2"})
+      assert_receive {:entity_changed, %{entity: "post", entity_id: ^post_id, action: :updated}}
+
+      {:ok, _} = BDS.Posts.publish_post(post_id)
+      assert_receive {:entity_changed, %{entity: "post", entity_id: ^post_id, action: :updated}}
+
+      {:ok, _} = BDS.Posts.delete_post(post_id)
+      assert_receive {:entity_changed, %{entity: "post", entity_id: ^post_id, action: :deleted}}
+    end
+  end
+
+  describe "tags broadcast" do
+    test "create, update, delete", %{project: project} do
+      {:ok, tag} = BDS.Tags.create_tag(%{project_id: project.id, name: "elixir"})
+      tag_id = tag.id
+      assert_receive {:entity_changed, %{entity: "tag", entity_id: ^tag_id, action: :created}}
+
+      {:ok, _} = BDS.Tags.update_tag(tag_id, %{name: "erlang"})
+      assert_receive {:entity_changed, %{entity: "tag", entity_id: ^tag_id, action: :updated}}
+
+      {:ok, _} = BDS.Tags.delete_tag(tag_id)
+      assert_receive {:entity_changed, %{entity: "tag", entity_id: ^tag_id, action: :deleted}}
+    end
+  end
+
+  describe "templates broadcast" do
+    test "create, update, delete", %{project: project} do
+      {:ok, template} =
+        BDS.Templates.create_template(%{
+          project_id: project.id,
+          title: "Article",
+          kind: :post,
+          content: "<article>{{ content }}</article>"
+        })
+
+      template_id = template.id
+
+      assert_receive {:entity_changed,
+                      %{entity: "template", entity_id: ^template_id, action: :created}}
+
+      {:ok, _} = BDS.Templates.update_template(template_id, %{title: "Article 2"})
+
+      assert_receive {:entity_changed,
+                      %{entity: "template", entity_id: ^template_id, action: :updated}}
+
+      {:ok, _} = BDS.Templates.delete_template(template_id)
+
+      assert_receive {:entity_changed,
+                      %{entity: "template", entity_id: ^template_id, action: :deleted}}
+    end
+  end
+
+  describe "scripts broadcast" do
+    test "create, update, delete", %{project: project} do
+      {:ok, script} =
+        BDS.Scripts.create_script(%{
+          project_id: project.id,
+          title: "hello",
+          kind: :utility,
+          content: "function main() end"
+        })
+
+      script_id = script.id
+      assert_receive {:entity_changed, %{entity: "script", entity_id: ^script_id, action: :created}}
+
+      {:ok, _} = BDS.Scripts.update_script(script_id, %{title: "hello2"})
+      assert_receive {:entity_changed, %{entity: "script", entity_id: ^script_id, action: :updated}}
+
+      {:ok, _} = BDS.Scripts.delete_script(script_id)
+      assert_receive {:entity_changed, %{entity: "script", entity_id: ^script_id, action: :deleted}}
+    end
+  end
+
+  describe "settings broadcast" do
+    test "put_global_setting broadcasts settings_changed" do
+      :ok = BDS.Settings.put_global_setting("ui.git_diff_view_style", "split")
+
+      assert_receive {:settings_changed, "ui.git_diff_view_style"}
+    end
+
+    test "ui.language setting overrides the OS locale server-side" do
+      :ok = BDS.Settings.put_global_setting("ui.language", "de")
+      assert_receive {:settings_changed, "ui.language"}
+
+      assert BDS.I18n.current_ui_locale() == "de"
+
+      # Blank value falls back to the OS locale (en in the test env).
+      :ok = BDS.Settings.put_global_setting("ui.language", "")
+      assert BDS.I18n.current_ui_locale() == "en"
+    end
+  end
+end