Add coverage for CLI::Feeds command (#25319)

spec/lib/mastodon/cli/feeds_spec.rb

@@ -4,9 +4,65 @@ require 'rails_helper'
 require 'mastodon/cli/feeds'
 
 describe Mastodon::CLI::Feeds 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 '#build' do
+    before { Fabricate(:account) }
+
+    context 'with --all option' do
+      let(:options) { { all: true } }
+
+      it 'regenerates feeds for all accounts' do
+        expect { cli.invoke(:build, [], options) }.to output(
+          a_string_including('Regenerated feeds')
+        ).to_stdout
+      end
+    end
+
+    context 'with a username' do
+      before { Fabricate(:account, username: 'alice') }
+
+      let(:arguments) { ['alice'] }
+
+      it 'regenerates feeds for the account' do
+        expect { cli.invoke(:build, arguments) }.to output(
+          a_string_including('OK')
+        ).to_stdout
+      end
+    end
+
+    context 'with invalid username' do
+      let(:arguments) { ['invalid-username'] }
+
+      it 'displays an error and exits' do
+        expect { cli.invoke(:build, arguments) }.to output(
+          a_string_including('No such account')
+        ).to_stdout.and raise_error(SystemExit)
+      end
+    end
+  end
+
+  describe '#clear' do
+    before do
+      allow(redis).to receive(:del).with(key_namespace)
+    end
+
+    it 'clears the redis `feed:*` namespace' do
+      expect { cli.invoke(:clear) }.to output(
+        a_string_including('OK')
+      ).to_stdout
+
+      expect(redis).to have_received(:del).with(key_namespace).once
+    end
+
+    def key_namespace
+      redis.keys('feed:*')
+    end
+  end
 end