1 files changed, 81 insertions, 0 deletions
diff --git a/activerecord/test/cases/reaper_test.rb b/activerecord/test/cases/reaper_test.rb
new file mode 100644
index 0000000000..576ab60090
--- /dev/null
+++ b/activerecord/test/cases/reaper_test.rb
@@ -0,0 +1,81 @@
+require "cases/helper"
+
+module ActiveRecord
+  module ConnectionAdapters
+    class ReaperTest < ActiveRecord::TestCase
+      attr_reader :pool
+
+      def setup
+        super
+        @pool = ConnectionPool.new ActiveRecord::Base.connection_pool.spec
+      end
+
+      def teardown
+        super
+        @pool.connections.each(&:close)
+      end
+
+      class FakePool
+        attr_reader :reaped
+
+        def initialize
+          @reaped = false
+        end
+
+        def reap
+          @reaped = true
+        end
+      end
+
+      # A reaper with nil time should never reap connections
+      def test_nil_time
+        fp = FakePool.new
+        assert !fp.reaped
+        reaper = ConnectionPool::Reaper.new(fp, nil)
+        reaper.run
+        assert !fp.reaped
+      end
+
+      def test_some_time
+        fp = FakePool.new
+        assert !fp.reaped
+
+        reaper = ConnectionPool::Reaper.new(fp, 0.0001)
+        reaper.run
+        until fp.reaped
+          Thread.pass
+        end
+        assert fp.reaped
+      end
+
+      def test_pool_has_reaper
+        assert pool.reaper
+      end
+
+      def test_reaping_frequency_configuration
+        spec = ActiveRecord::Base.connection_pool.spec.dup
+        spec.config[:reaping_frequency] = 100
+        pool = ConnectionPool.new spec
+        assert_equal 100, pool.reaper.frequency
+      end
+
+      def test_connection_pool_starts_reaper
+        spec = ActiveRecord::Base.connection_pool.spec.dup
+        spec.config[:reaping_frequency] = 0.0001
+
+        pool = ConnectionPool.new spec
+        pool.timeout = 0
+
+        conn = pool.checkout
+        count = pool.connections.length
+
+        conn.extend(Module.new { def active?; false; end; })
+
+        while count == pool.connections.length
+          Thread.pass
+        end
+        assert_equal(count - 1, pool.connections.length)
+      end
+    end
+  end
+end