Add coverage for `CLI::PreviewCards#remove` command (#27441)

spec/lib/mastodon/cli/preview_cards_spec.rb

@@ -4,9 +4,52 @@ require 'rails_helper'
 require 'mastodon/cli/preview_cards'
 
 describe Mastodon::CLI::PreviewCards do
+  let(:cli) { described_class.new }
+
   describe '.exit_on_failure?' do
     it 'returns true' do
       expect(described_class.exit_on_failure?).to be true
     end
   end
+
+  describe '#remove' do
+    context 'with relevant preview cards' do
+      before do
+        Fabricate(:preview_card, updated_at: 10.years.ago, type: :link)
+        Fabricate(:preview_card, updated_at: 10.months.ago, type: :photo)
+        Fabricate(:preview_card, updated_at: 10.days.ago, type: :photo)
+      end
+
+      context 'with no arguments' do
+        it 'deletes thumbnails for local preview cards' do
+          expect { cli.invoke(:remove) }.to output(
+            a_string_including('Removed 2 preview cards')
+              .and(a_string_including('approx. 119 KB'))
+          ).to_stdout
+        end
+      end
+
+      context 'with the --link option' do
+        let(:options) { { link: true } }
+
+        it 'deletes thumbnails for local preview cards' do
+          expect { cli.invoke(:remove, [], options) }.to output(
+            a_string_including('Removed 1 link-type preview cards')
+              .and(a_string_including('approx. 59.6 KB'))
+          ).to_stdout
+        end
+      end
+
+      context 'with the --days option' do
+        let(:options) { { days: 365 } }
+
+        it 'deletes thumbnails for local preview cards' do
+          expect { cli.invoke(:remove, [], options) }.to output(
+            a_string_including('Removed 1 preview cards')
+              .and(a_string_including('approx. 59.6 KB'))
+          ).to_stdout
+        end
+      end
+    end
+  end
 end