Added test for complicated routes

test_journey.rb

@@ -53,4 +53,36 @@ class TestJouney < Test::Unit::TestCase
     elements = journey.elements
     assert_equal(["u", "v"], elements)
   end
+
+  def test_two_independent_route
+    journey = Journey.new
+    inserts = [
+      {:station=>"u"},
+      {:station=>"v", :criteria=>"w"},
+      {:station=>"w", :criteria=>"z"},
+      {:station=>"x", :criteria=>"u"},
+      {:station=>"y", :criteria=>"v"},
+      {:station=>"z"}
+    ]
+    inserts.each {|i| journey.insert(i) }
+
+    elements = journey.elements
+    assert_equal(["x", "u", "y", "v", "w", "z"], elements)
+  end
+
+  def test_two_independent_route_mixed_inserts
+    journey = Journey.new
+    inserts = [
+      {:station=>"y", :criteria=>"v"},
+      {:station=>"u"},
+      {:station=>"v", :criteria=>"w"},
+      {:station=>"x", :criteria=>"u"},
+      {:station=>"w", :criteria=>"z"},
+      {:station=>"z"}
+    ]
+    inserts.each {|i| journey.insert(i) }
+
+    elements = journey.elements
+    assert_equal(["y", "x", "u", "v", "w", "z"], elements)
+  end
 end