diff --git a/spec/filters/split.rb b/spec/filters/split.rb
new file mode 100644
index 00000000000..906328c1a0a
--- /dev/null
+++ b/spec/filters/split.rb
@@ -0,0 +1,58 @@
+require "test_utils"
+require "logstash/filters/split"
+
+describe LogStash::Filters::Split do
+  extend LogStash::RSpec
+
+  describe "all defaults" do
+    config <<-CONFIG
+      filter {
+        split { }
+      }
+    CONFIG
+
+    sample "big\nbird\nsesame street" do
+      insist { subject.length } == 3
+      insist { subject[0]["@message"] } == "big"
+      insist { subject[1]["@message"] } == "bird"
+      insist { subject[2]["@message"] } == "sesame street"
+    end
+  end
+
+  describe "custome terminator" do
+    config <<-CONFIG
+      filter {
+        split { 
+          terminator => "\t"
+        }
+      }
+    CONFIG
+
+    sample "big\tbird\tsesame street" do
+      insist { subject.length } == 3
+      insist { subject[0]["@message"] } == "big"
+      insist { subject[1]["@message"] } == "bird"
+      insist { subject[2]["@message"] } == "sesame street"
+    end
+  end
+
+  describe "custom field" do
+    config <<-CONFIG
+      filter {
+        split { 
+          field => "custom"
+        }
+      }
+    CONFIG
+
+    sample ({"@fields" => { "custom" => "big\nbird\nsesame street", "do_not_touch" => "1\n2\n3"}}) do
+      insist { subject.length } == 3
+      subject.each do |s|
+         insist { s["do_not_touch"] } == "1\n2\n3"
+      end
+      insist { subject[0]["custom"] } == "big"
+      insist { subject[1]["custom"] } == "bird"
+      insist { subject[2]["custom"] } == "sesame street"
+    end
+  end
+end