interpreter.rs

		use keys::{KeyPair, Private, Network};
		use sign::UnsignedTransactionInput;
		use chain::{OutPoint, TransactionOutput};

		let key_pair = KeyPair::from_private(Private { network: Network::Mainnet, secret: 1.into(), compressed: false, }).unwrap();
		let redeem_script = Builder::default()
			.push_data(key_pair.public())
			.push_opcode(Opcode::OP_CHECKSIG)
			.into_script();


		let amount = 12345000000000;
		let sighashtype = 0x41; // All + ForkId
		let checker = TransactionSignatureChecker {
			input_index: 0,
			input_amount: amount,
			signer: TransactionInputSigner {
				version: 1,
				inputs: vec![
					UnsignedTransactionInput {
						previous_output: OutPoint {
							hash: 0u8.into(),
							index: 0xffffffff,
						},
						sequence: 0xffffffff,
					},
				],
				outputs: vec![
					TransactionOutput {
						value: amount,
						script_pubkey: redeem_script.to_bytes(),
					},
				],
				lock_time: 0,
			},
		};

		let script_pubkey = redeem_script;
		let flags = VerificationFlags::default();

		// valid signature
		{
			let signed_input = checker.signer.signed_input(&key_pair, 0, amount, &script_pubkey, SignatureVersion::ForkId, sighashtype);
			let script_sig = signed_input.script_sig.into();

			assert_eq!(verify_script(&script_sig, &script_pubkey, &flags, &checker, SignatureVersion::ForkId), Ok(()));
		}

		// signature with wrong amount
		{
			let signed_input = checker.signer.signed_input(&key_pair, 0, amount + 1, &script_pubkey, SignatureVersion::ForkId, sighashtype);
			let script_sig = signed_input.script_sig.into();

			assert_eq!(verify_script(&script_sig, &script_pubkey, &flags, &checker, SignatureVersion::ForkId), Err(Error::EvalFalse));
		}

		// fork-id signature passed when not expected
		{
			let signed_input = checker.signer.signed_input(&key_pair, 0, amount + 1, &script_pubkey, SignatureVersion::ForkId, sighashtype);
			let script_sig = signed_input.script_sig.into();

			assert_eq!(verify_script(&script_sig, &script_pubkey, &flags, &checker, SignatureVersion::Base), Err(Error::EvalFalse));
		}

		// non-fork-id signature passed when expected
		{
			let signed_input = checker.signer.signed_input(&key_pair, 0, amount + 1, &script_pubkey, SignatureVersion::Base, 1);
			let script_sig = signed_input.script_sig.into();

			assert_eq!(verify_script(&script_sig, &script_pubkey, &flags, &checker, SignatureVersion::ForkId), Err(Error::EvalFalse));
		}
	}
}