Index: http-auth/src/lib.rs
===================================================================
--- http-auth.orig/src/lib.rs
+++ http-auth/src/lib.rs
@@ -625,6 +625,7 @@ impl<'i> std::fmt::Debug for ParamValue<
 #[cfg(test)]
 mod tests {
     use crate::ParamValue;
+    #[cfg(feature = "digest-scheme")]
     use crate::{C_ATTR, C_ESCAPABLE, C_OWS, C_QDTEXT, C_TCHAR};
 
     /// Prints the character classes of all ASCII bytes from the table.
@@ -633,6 +634,7 @@ mod tests {
     /// $ cargo test -- --nocapture tests::table
     /// ```
     #[test]
+    #[cfg(feature = "digest-scheme")]
     fn table() {
         // Print the table to allow human inspection.
         println!("oct  dec  hex   char      tchar  qdtext  escapable  ows  attr");