diff --git a/config/type_blocklist_uri_test.go b/config/type_blocklist_uri_test.go
index e0b8974..6ced8ac 100644
--- a/config/type_blocklist_uri_test.go
+++ b/config/type_blocklist_uri_test.go
@@ -22,6 +22,22 @@ type TypeBlocklistURITestSuite struct {
 	suite.Suite
 }
 
+func (suite *TypeBlocklistURITestSuite) TestUnmarshalNil() {
+	typ := &config.TypeBlocklistURI{}
+	suite.NoError(typ.UnmarshalText(nil))
+	suite.Empty(typ.String())
+}
+
+func (suite *TypeBlocklistURITestSuite) TestUnknownSchema() {
+	typ := &config.TypeBlocklistURI{}
+    suite.Error(typ.UnmarshalText([]byte("gopher://lalala")))
+}
+
+func (suite *TypeBlocklistURITestSuite) TestEmptyHost() {
+	typ := &config.TypeBlocklistURI{}
+    suite.Error(typ.UnmarshalText([]byte("https:///path")))
+}
+
 func (suite *TypeBlocklistURITestSuite) TestUnmarshalFail() {
 	rnd := make([]byte, 48)