lib.rs

			let msg = b"Schnorrkel rules";
			let signature = pair.sign(msg);
			crypto::sr25519_batch_verify(&signature, msg, &pair.public());

			let pair = sr25519::Pair::generate_with_phrase(None).0;
			let msg = b"Schnorrkel batches!";
			let signature = pair.sign(msg);
			crypto::sr25519_batch_verify(&signature, msg, &pair.public());

			assert!(crypto::finish_batch_verify());

			// 1 valid sr25519, 1 invalid sr25519
			crypto::start_batch_verify();

			let pair1 = sr25519::Pair::generate_with_phrase(None).0;
			let pair2 = sr25519::Pair::generate_with_phrase(None).0;
			let msg = b"Schnorrkcel!";
			let signature = pair1.sign(msg);

			crypto::sr25519_batch_verify(&signature, msg, &pair1.public());
			crypto::sr25519_batch_verify(&signature, msg, &pair2.public());
			crypto::sr25519_batch_verify(&zero_sr_sig(), &Vec::new(), &zero_sr_pub());

			assert!(!crypto::finish_batch_verify());
		});
	}

	#[test]
	fn use_dalek_ext_works() {
		let mut ext = BasicExternalities::default();
		ext.register_extension(UseDalekExt::default());

		// With dalek the zero signature should fail to verify.
		ext.execute_with(|| {
			assert!(!crypto::ed25519_verify(&zero_ed_sig(), &Vec::new(), &zero_ed_pub()));
		});

		// But with zebra it should work.
		BasicExternalities::default().execute_with(|| {
			assert!(crypto::ed25519_verify(&zero_ed_sig(), &Vec::new(), &zero_ed_pub()));
		})
	}
}