diff --git a/test/test-csp.js b/test/test-csp.js
new file mode 100644
index 0000000..a9eb4a3
--- /dev/null
+++ b/test/test-csp.js
@@ -0,0 +1,12 @@
+var m = csp.solver(csp.CSP.SIMPLE)
+csp.V(m,'x',csp.range(1,9))
+csp.V(m,'y',[1,2,3,4,5,6,7,8,9])
+csp.V(m,'z',[1,2,3,4,5,6,7,8,9])
+csp.C(m,'x','y',function (x,y) { return x > y })
+csp.C(m,'y','z',function (y,z) { return y > z })
+csp.C(m,'x','y',function (x,y) { return x > 3 && y < 7 })
+csp.C(m,'x','y',function (x,y) { return x != y })
+csp.C(m,'z',null,function (z) { return z > 2 })
+print(m)
+print(toJSON(m).length+' Bytes')
+print(csp.solve(m))