Upgrade and add new testing functions

jwt_test.go

@@ -104,6 +104,79 @@ func TestMapClaims(t *testing.T) {
 	}
 }
 
+func TestLifetimeMinutes(t *testing.T) {
+	j := newJWT(JWTOptions{
+		SigningKey:      "testsigning",
+		LifetimeMinutes: 42,
+	})
+	if j.LifetimeMinutes() != 42 {
+		t.Errorf("expected lifetime 42, got %d", j.LifetimeMinutes())
+	}
+}
+
+func TestExpiresAtIgnoreExpiry(t *testing.T) {
+	j := initiateJWTHelper(t)
+	token, err := j.GenerateToken(map[string]interface{}{
+		"userID": 1,
+	})
+	if err != nil {
+		t.Fatalf("failed generating token: %v", err)
+	}
+	exp, err := j.ExpiresAtIgnoreExpiry(token)
+	if err != nil {
+		t.Fatalf("failed testing expires at ignore expiry: %v", err)
+	}
+	expected := time.Now().Add(time.Duration(j.LifetimeMinutes()) * time.Minute)
+	if diff := exp.Sub(expected); diff > time.Minute || diff < -time.Minute {
+		t.Errorf("expected expiration close to %v, got %v", expected, exp)
+	}
+
+	// An expired token must still return its expiration (no validation performed).
+	expiredToken := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJKIjoiZXlKMFpYTjBTMlY1SWpvaWRHVnpkRlpoYkNKOSIsImV4cCI6MTY4NDkyMzQwOX0.v2aM9OTDJ48L4KnGjfLH3JAFQw4Gkgj5z7cA7txPNag"
+	_, err = j.ExpiresAtIgnoreExpiry(expiredToken)
+	if err != nil {
+		t.Errorf("expected to read expiration of an expired token, got error: %v", err)
+	}
+}
+
+func TestExpiresAtIgnoreExpiryInvalid(t *testing.T) {
+	j := initiateJWTHelper(t)
+	_, err := j.ExpiresAtIgnoreExpiry("not-a-token")
+	if err == nil {
+		t.Errorf("expected error for an invalid token")
+	}
+}
+
+func TestDecodeTokenIgnoreExpiry(t *testing.T) {
+	j := initiateJWTHelper(t)
+
+	// An already expired token should still be decodable.
+	expiredToken := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJKIjoiZXlKMFpYTjBTMlY1SWpvaWRHVnpkRlpoYkNKOSIsImV4cCI6MTY4NDkyMzQwOX0.v2aM9OTDJ48L4KnGjfLH3JAFQw4Gkgj5z7cA7txPNag"
+	_, err := j.DecodeTokenIgnoreExpiry(expiredToken)
+	if err != nil {
+		t.Errorf("expected to decode an expired token ignoring expiry, got: %v", err)
+	}
+
+	token, err := j.GenerateToken(map[string]interface{}{
+		"userID": 99,
+	})
+	if err != nil {
+		t.Fatalf("failed generating token: %v", err)
+	}
+	payload, err := j.DecodeTokenIgnoreExpiry(token)
+	if err != nil {
+		t.Fatalf("failed decoding token ignoring expiry: %v", err)
+	}
+	if fmt.Sprintf("%v", payload["userID"]) != "99" {
+		t.Errorf("expected userID 99, got %v", payload["userID"])
+	}
+
+	// An invalid token must fail.
+	if _, err := j.DecodeTokenIgnoreExpiry("invalid"); err == nil {
+		t.Errorf("expected error decoding an invalid token")
+	}
+}
+
 func initiateJWTHelper(t *testing.T) *JWT {
 	t.Helper()
 	j := newJWT(JWTOptions{