diff --git a/test_tsp.py b/test_tsp.py
new file mode 100644
index 0000000..ae3e1b2
--- /dev/null
+++ b/test_tsp.py
@@ -0,0 +1,35 @@
+
+from tsplib import *
+
+
+segments = [
+        ( (0,0),(0,2) ),
+        ( (0,2),(2,2) ),
+        ( (2,2),(2,0) ),
+        ( (2,0),(0,0) )
+]
+
+filename = "test.tsp"
+with open(filename,"w") as fd:
+    write_segments( segments, fd=fd, size=1, depth=0, rounding=10 )
+    write_segments( segments, fd=sys.stdout, size=1, depth=0, rounding=10 )
+
+with open(filename,"r") as fd:
+    nodes = read_nodes( fd )
+
+print "Nodes: id (x, y)"
+for idx,node in nodes.items():
+    print idx,node
+
+with open(filename,"r") as fd:
+    vertices = read_vertices( fd )
+
+print "Segments: (x1,y1) (x2,y2)"
+segments = []
+for i1,i2 in vertices:
+    print nodes[i1],nodes[i2]
+    segments.append( (nodes[i1],nodes[i2]) )
+
+plot_segments( segments )
+
+