--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/service/rfid_pn532/rdf_test.nim	Sun Apr 21 03:28:21 2019 -0700
@@ -0,0 +1,44 @@
+import sets
+import unittest
+import rdf
+import rdf_nodes
+import strformat
+
+suite "rdf":
+  let EX = initNamespace("http://example.com/")
+  test "construct quad with uri obj":
+    let q: Quad = (EX["a"], EX["b"], EX["c"], EX["d"])
+
+  test "construct quad with string literal obj":
+    let q: Quad = (EX["a"], EX["b"], initLiteral("hi"), EX["d"])
+
+  test "construct quad with typed literal obj":
+    let q: Quad = (EX["a"], EX["b"], initLiteral("hi", EX["dt"]), EX["d"])
+
+  test "uri can be used in a set":
+    let uris = toSet[Uri]([EX["a"]])
+    
+  test "quad can be used in a set":
+    let q1 = Quad((EX["a"], EX["b"], EX["c"], EX["ctx"]))
+    let quads = toSet([q1])
+    
+  test "uri stringify":
+    require($EX["a"] == "http://example.com/a")
+
+  test "quads to json":
+    let q1 = Quad((EX["a"], EX["b"], EX["c"], EX["ctx"]))
+    let q2 = Quad((EX["a"], EX["b"], EX["c2"], EX["ctx2"]))
+    require(toJsonLd(toSet([q1, q2])) == """[{"@graph":[{"@id":"http://example.com/a","http://example.com/b":["http://example.com/c"]}],"@id":"http://example.com/ctx"},{"@graph":[{"@id":"http://example.com/a","http://example.com/b":["http://example.com/c2"]}],"@id":"http://example.com/ctx2"}]""")
+
+  test "uri toNt":
+    require(EX["a"].toNt() == "<http://example.com/a>")
+
+  test "string literal toNt":
+    let n = initLiteral("hi")
+    require(n.toNt() == "\"hi\"")
+
+  test "string literal with dataType toNt":
+    let n = initLiteral("3.14", initUri("http://www.w3.org/2001/XMLSchema#float"))
+    require(n.toNt() == "\"3.14\"^^<http://www.w3.org/2001/XMLSchema#float>")
+    
+