test/cli/commands/test_compile.rb in nanoc-3.4.0 vs test/cli/commands/test_compile.rb in nanoc-3.4.1

@@ -28,6 +28,47 @@
 
       Nanoc::CLI.run %w( compile --verbose )
     end
   end
 
+  def test_auto_prune
+    with_site do |site|
+      Nanoc::CLI.run %w( create_item foo )
+      Nanoc::CLI.run %w( create_item bar )
+      Nanoc::CLI.run %w( create_item baz )
+
+      File.open('Rules', 'w') do |io|
+        io.write "compile '*' do\n"
+        io.write "  filter :erb\n"
+        io.write "end\n"
+        io.write "\n"
+        io.write "route '*' do\n"
+        io.write "  if item.binary?\n"
+        io.write "    item.identifier.chop + '.' + item[:extension]\n"
+        io.write "  else\n"
+        io.write "    item.identifier + 'index.html'\n"
+        io.write "  end\n"
+        io.write "end\n"
+        io.write "\n"
+        io.write "layout '*', :erb\n"
+      end
+
+      File.open('output/stray.html', 'w') do |io|
+        io.write 'I am a stray file and I am about to be deleted!'
+      end
+
+      assert File.file?('output/stray.html')
+      Nanoc::CLI.run %w( compile )
+      assert File.file?('output/stray.html')
+
+      File.open('config.yaml', 'w') do |io|
+        io.write "prune:\n"
+        io.write "  auto_prune: true\n"
+      end
+
+      assert File.file?('output/stray.html')
+      Nanoc::CLI.run %w( compile )
+      refute File.file?('output/stray.html')
+    end
+  end
+
 end