feat: create LabelComponent

app/components/label_component.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class LabelComponent < ApplicationComponent
+  TYPES = %i[default primary success info warning danger]
+
+  erb_template <<~ERB
+    <span class="<%= css_classes %>">
+      <%= content %>
+    </span>
+  ERB
+
+  def initialize(text = nil, type: :default)
+    @text = text
+
+    @type = type.to_sym
+    raise ArgumentError, "'#{@type.inspect}' is not a valid type" unless TYPES.include?(@type)
+  end
+
+  def css_classes
+    "label label-#{@type}"
+  end
+
+  def content
+    super || @text
+  end
+end

spec/components/label_component_spec.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe LabelComponent, type: :component do
+  context "with html content" do
+    let(:component) { described_class.new(text, **kwargs) }
+    let(:rendered_component) { render_inline(component, &block) }
+    let(:text) { "Text as argument" }
+    let(:kwargs) { {} }
+    let(:block) {}
+
+    context "with text" do
+      it { expect(rendered_component.to_html).to have_tag("span.label.label-default", text: /Text as argument/) }
+    end
+
+    context "with text as block" do
+      let(:block) { proc { "Text as block" } }
+
+      it { expect(rendered_component.to_html).to have_tag("span.label.label-default", text: /Text as block/) }
+    end
+
+    context "with type" do
+      let(:kwargs) { { type: :success } }
+
+      it { expect(rendered_component.to_html).to have_tag("span.label.label-success", text: /Text as argument/) }
+    end
+  end
+end