diff --git a/util/util_test.go b/util/util_test.go
new file mode 100644
index 0000000..1e71eac
--- /dev/null
+++ b/util/util_test.go
@@ -0,0 +1,24 @@
+package util
+
+import (
+	"testing"
+)
+
+func TestParseJwt(t *testing.T) {
+	premadeJwt := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjbGFpbTEiOiJjbGFpbTEtdmFsIiwiY2xhaW0yIjoyMjJ9.n1rVLigY5Q6CNKqcGD38i27dqytY2qaWhXexq6PKyIY"
+	premadeHmac := []byte{1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4}
+
+	parsed, err := ParseJwt(premadeJwt, premadeHmac)
+	if err != nil {
+		t.Errorf("should not fail parsing JWT")
+	}
+
+	if parsed["claim1"] != "claim1-val" {
+		t.Errorf("did not contain expected value for claim1, %v", parsed)
+	}
+
+	if parsed["claim2"] != 222.0 {
+		t.Errorf("did not contain expected value for claim2, %v", parsed)
+	}
+
+}