added code for token issuance and verification

jwt_test.go

@@ -1,10 +1,11 @@
 package hodu_test
 
+import "crypto/rand"
+import "crypto/rsa"
 import "hodu"
 import "testing"
 
 func TestJwt(t *testing.T) {
-	var j hodu.JWT
 	var tok string
 	var err error
 	          
@@ -18,9 +19,21 @@ func TestJwt(t *testing.T) {
 	jc.Abc = "def"
 	jc.Donkey = "kong" 
 	jc.IssuedAt = 111
-	tok, err = j.Sign(&jc) 
+
+	var key *rsa.PrivateKey
+	key, err = rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil { t.Fatalf("keygen failure - %s", err.Error()) }
+
+	var j *hodu.JWT[JWTClaim]
+	j = hodu.NewJWT(key, &jc)
+	tok, err = j.SignRS512()
 	if err != nil { t.Fatalf("signing failure - %s", err.Error()) }
 
-	err = j.Verify(tok)
+	jc = JWTClaim{}
+	err = j.VerifyRS512(tok)
 	if err != nil { t.Fatalf("verification failure - %s", err.Error()) }
+
+	if jc.Abc != "def" { t.Fatal("decoding failure of Abc field") }
+	if jc.Donkey != "kong" { t.Fatal("decoding failure of Donkey field") }
+	if jc.IssuedAt != 111 { t.Fatal("decoding failure of Issued field") }
 }