diff --git a/lib/mastodon/cli/feeds.rb b/lib/mastodon/cli/feeds.rb
index 34617e753..3467dd427 100644
--- a/lib/mastodon/cli/feeds.rb
+++ b/lib/mastodon/cli/feeds.rb
@@ -19,7 +19,7 @@ module Mastodon::CLI
     LONG_DESC
     def build(username = nil)
       if options[:all] || username.nil?
-        processed, = parallelize_with_progress(Account.joins(:user).merge(User.active)) do |account|
+        processed, = parallelize_with_progress(active_user_accounts) do |account|
           PrecomputeFeedService.new.call(account) unless dry_run?
         end
 
@@ -47,5 +47,11 @@ module Mastodon::CLI
       redis.del(keys)
       say('OK', :green)
     end
+
+    private
+
+    def active_user_accounts
+      Account.joins(:user).merge(User.active)
+    end
   end
 end
diff --git a/spec/lib/mastodon/cli/feeds_spec.rb b/spec/lib/mastodon/cli/feeds_spec.rb
index 4e1e214ef..030f08721 100644
--- a/spec/lib/mastodon/cli/feeds_spec.rb
+++ b/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