Merge pull request #10208 from alphagov/CM-67-add-a-country-component

(CM-64) Add a CountryComponent

Author: pezholio

lib/engines/content_block_manager/app/components/content_block_manager/content_block_edition/details/fields/country_component.rb

@@ -0,0 +1,6 @@
+class ContentBlockManager::ContentBlockEdition::Details::Fields::CountryComponent < ContentBlockManager::ContentBlockEdition::Details::Fields::EnumComponent
+  def initialize(**args)
+    countries = WorldLocation.all.map(&:name)
+    super(**args.merge(enum: countries))
+  end
+end

lib/engines/content_block_manager/test/components/content_block/edition/details/fields/country_component_test.rb

@@ -0,0 +1,72 @@
+require "test_helper"
+
+class ContentBlockManager::ContentBlockEdition::Details::Fields::CountryComponentTest < ViewComponent::TestCase
+  extend Minitest::Spec::DSL
+
+  let(:content_block_edition) { build(:content_block_edition, :email_address) }
+  let(:field) { stub("field", name: "country") }
+
+  let(:world_locations) { build_list(:world_location, 5) }
+
+  before do
+    WorldLocation.stubs(:all).returns(world_locations)
+  end
+
+  it "should render an select field populated with WorldLocations" do
+    render_inline(
+      ContentBlockManager::ContentBlockEdition::Details::Fields::CountryComponent.new(
+        content_block_edition:,
+        field:,
+      ),
+    )
+
+    expected_name = "content_block/edition[details][country]"
+    expected_id = "#{ContentBlockManager::ContentBlockEdition::Details::Fields::BaseComponent::PARENT_CLASS}_details_country"
+
+    assert_selector "label", text: "Country"
+    assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"]"
+    assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"] option[value=\"\"]"
+
+    world_locations.each do |location|
+      assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"] option[value=\"#{location.name}\"]", text: location.name
+    end
+  end
+
+  it "should show an option as selected when value is given" do
+    render_inline(
+      ContentBlockManager::ContentBlockEdition::Details::Fields::CountryComponent.new(
+        content_block_edition:,
+        field:,
+        value: world_locations.first.name,
+      ),
+    )
+
+    expected_name = "content_block/edition[details][country]"
+    expected_id = "#{ContentBlockManager::ContentBlockEdition::Details::Fields::BaseComponent::PARENT_CLASS}_details_country"
+
+    assert_selector "label", text: "Country"
+    assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"]"
+    assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"] option[value=\"\"]"
+
+    world_locations.each do |location|
+      assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"] option[value=\"#{location.name}\"]", text: location.name
+    end
+
+    assert_selector "select[name=\"#{expected_name}\"][id=\"#{expected_id}\"] option[value=\"#{world_locations.first.name}\"][selected]", text: world_locations.first.name
+  end
+
+  it "should show errors when present" do
+    content_block_edition.errors.add(:details_country, "Some error goes here")
+
+    render_inline(
+      ContentBlockManager::ContentBlockEdition::Details::Fields::CountryComponent.new(
+        content_block_edition:,
+        field:,
+      ),
+    )
+
+    assert_selector ".govuk-form-group--error"
+    assert_selector ".govuk-error-message", text: "Some error goes here"
+    assert_selector "select.govuk-select--error"
+  end
+end