Add From implementation to ExtrinsicSigner

primitives/Cargo.toml

@@ -29,6 +29,7 @@ pallet-staking = { optional = true, git = "https://github.com/paritytech/substra
 
 [dev-dependencies]
 node-template-runtime = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
+kitchensink-runtime = { git = "https://github.com/paritytech/substrate.git", branch = "master" }
 
 [features]
 default = ["std"]

primitives/src/signer.rs

@@ -90,3 +90,37 @@ where
 		self.extrinsic_address.clone()
 	}
 }
+
+impl<Signer, Runtime> From<Signer> for ExtrinsicSigner<Signer, Signer::Signature, Runtime>
+where
+	Signer: Pair,
+	Runtime: FrameSystemConfig,
+	Runtime::AccountId: From<Signer::Public>,
+{
+	fn from(value: Signer) -> Self {
+		ExtrinsicSigner::<Signer, Signer::Signature, Runtime>::new(value)
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use crate::ExtrinsicSigner;
+	use kitchensink_runtime::Runtime;
+	use sp_core::{sr25519, Pair};
+
+	#[test]
+	fn test_extrinsic_signer_from_sr25519_pair() {
+		let alice: sr25519::Pair = Pair::from_string(
+			"0xe5be9a5092b81bca64be81d212e7f2f9eba183bb7a90954f7b76361f6edb5c0a",
+			None,
+		)
+		.unwrap();
+
+		let es_converted: ExtrinsicSigner<sr25519::Pair, sr25519::Signature, Runtime> =
+			alice.clone().into();
+		let es_new =
+			ExtrinsicSigner::<sr25519::Pair, sr25519::Signature, Runtime>::new(alice.clone());
+
+		assert_eq!(es_converted.signer.public(), es_new.signer.public());
+	}
+}