Rename the coins folder to networks (#583)

* Rename the coins folder to networks

Ethereum isn't a coin. It's a network.

Resolves #357.

* More renames of coins -> networks in orchestration

* Correct paths in tests/

* cargo fmt

networks/monero/ringct/bulletproofs/src/tests/mod.rs

@@ -0,0 +1,56 @@
+use rand_core::{RngCore, OsRng};
+
+use curve25519_dalek::scalar::Scalar;
+
+use monero_primitives::Commitment;
+use crate::{batch_verifier::BatchVerifier, Bulletproof, BulletproofError};
+
+mod original;
+mod plus;
+
+macro_rules! bulletproofs_tests {
+  ($name: ident, $max: ident, $plus: literal) => {
+    #[test]
+    fn $name() {
+      // Create Bulletproofs for all possible output quantities
+      let mut verifier = BatchVerifier::new();
+      for i in 1 ..= 16 {
+        let commitments = (1 ..= i)
+          .map(|_| Commitment::new(Scalar::random(&mut OsRng), OsRng.next_u64()))
+          .collect::<Vec<_>>();
+
+        let bp = if $plus {
+          Bulletproof::prove_plus(&mut OsRng, commitments.clone()).unwrap()
+        } else {
+          Bulletproof::prove(&mut OsRng, commitments.clone()).unwrap()
+        };
+
+        let commitments = commitments.iter().map(Commitment::calculate).collect::<Vec<_>>();
+        assert!(bp.verify(&mut OsRng, &commitments));
+        assert!(bp.batch_verify(&mut OsRng, &mut verifier, &commitments));
+      }
+      assert!(verifier.verify());
+    }
+
+    #[test]
+    fn $max() {
+      // Check Bulletproofs errors if we try to prove for too many outputs
+      let mut commitments = vec![];
+      for _ in 0 .. 17 {
+        commitments.push(Commitment::new(Scalar::ZERO, 0));
+      }
+      assert_eq!(
+        (if $plus {
+          Bulletproof::prove_plus(&mut OsRng, commitments)
+        } else {
+          Bulletproof::prove(&mut OsRng, commitments)
+        })
+        .unwrap_err(),
+        BulletproofError::TooManyCommitments,
+      );
+    }
+  };
+}
+
+bulletproofs_tests!(bulletproofs, bulletproofs_max, false);
+bulletproofs_tests!(bulletproofs_plus, bulletproofs_plus_max, true);