Add AdminTooltipComponent

I left the stimulus controller separated as it is generic enough

spec/components/admin_tooltip_component_spec.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+RSpec.describe AdminTooltipComponent, type: :component do
+  it "displays the tooltip link" do
+    render_inline(described_class.new(text: "Tooltip description", link_text: "Hover here"))
+
+    expect(page).to have_selector "a", text: "Hover here"
+  end
+
+  describe "text" do
+    it "displays the tooltip text" do
+      render_inline(described_class.new(text: "Tooltip description", link_text: "Hover here"))
+
+      expect(page).to have_selector ".tooltip", text: "Tooltip description"
+    end
+
+    it "sanitizes the tooltip text" do
+      render_inline(described_class.new( text: "Tooltip <span>description</span>",
+                                         link_text: "Hover here"))
+
+      expect(page).to have_selector ".tooltip", text: "Tooltip description"
+    end
+  end
+
+  describe "placement" do
+    it "uses top as default" do
+      render_inline(described_class.new(text: "Tooltip <span>description</span>",
+                                        link_text: "Hover here"))
+
+      expect(page).to have_selector '[data-tooltip-placement-value="top"]'
+    end
+
+    it "uses the given placement" do
+      render_inline(described_class.new(text: "Tooltip <span>description</span>",
+                                        link_text: "Hover here", placement: "left"))
+      expect(page).to have_selector '[data-tooltip-placement-value="left"]'
+    end
+  end
+
+  it "adds the correct link" do
+    render_inline(described_class.new(text: "Tooltip description", link_text: "Hover here",
+                                      link: "www.ofn.com"))
+
+    expect(page).to have_selector '[href="www.ofn.com"]'
+  end
+
+  it "adds the correct link_class" do
+    render_inline(described_class.new(text: "Tooltip description", link_text: "Hover here",
+                                      link_class: "pretty"))
+    expect(page).to have_selector 'a[class="pretty"]'
+  end
+end