chore: checkpoint before Python removal

vendor/blake2/tests/mac.rs

@@ -0,0 +1,29 @@
+#[cfg(not(feature = "reset"))]
+use digest::new_mac_test as new_test;
+#[cfg(feature = "reset")]
+use digest::new_resettable_mac_test as new_test;
+
+new_test!(blake2b_mac, "blake2b/mac", blake2::Blake2bMac512);
+new_test!(blake2s_mac, "blake2s/mac", blake2::Blake2sMac256);
+
+#[test]
+fn blake2b_new_test() {
+    use blake2::digest::{generic_array::GenericArray, KeyInit, Mac};
+
+    fn run<T: Mac + KeyInit>(key: &[u8]) {
+        const DATA: &[u8] = &[42; 300];
+        let res1 = <T as Mac>::new(GenericArray::from_slice(key))
+            .chain_update(DATA)
+            .finalize()
+            .into_bytes();
+        let res2 = <T as Mac>::new_from_slice(&key)
+            .unwrap()
+            .chain_update(DATA)
+            .finalize()
+            .into_bytes();
+        assert_eq!(res1, res2);
+    }
+
+    run::<blake2::Blake2sMac256>(&[0x42; 32]);
+    run::<blake2::Blake2bMac512>(&[0x42; 64]);
+}