Merge pull request #2159 from reitermarkus/spec-cleanup

Convert `brew cleanup` test to spec.

Library/Homebrew/test/cleanup_test.rb

@@ -5,13 +5,6 @@ require "fileutils"
 require "pathname"
 require "testing_env"
 
-class IntegrationCommandTestCleanup < IntegrationCommandTestCase
-  def test_cleanup
-    (HOMEBREW_CACHE/"test").write "test"
-    assert_match "#{HOMEBREW_CACHE}/test", cmd("cleanup", "--prune=all")
-  end
-end
-
 class CleanupTests < Homebrew::TestCase
   def setup
     super

Library/Homebrew/test/cmd/cleanup_spec.rb

+describe "brew cleanup", :integration_test do
+  describe "--prune=all" do
+    it "removes all files in Homebrew's cache" do
+      (HOMEBREW_CACHE/"test").write "test"
+
+      expect { brew "cleanup", "--prune=all" }
+        .to output(%r{#{Regexp.escape(HOMEBREW_CACHE)}/test}).to_stdout
+        .and not_to_output.to_stderr
+        .and be_a_success
+    end
+  end
+end