[Test] This PR adds a test that shows record production/consumption behaviors in an external call.

ledger/src/tests.rs

@@ -3143,3 +3143,264 @@ fn test_forged_block_subdags() {
         assert!(ledger.check_next_block(&forged_block_2_from_both_subdags, &mut rand::thread_rng()).is_err());
     }
 }
+
+#[test]
+fn test_record_creation_and_consumption_in_call() {
+    let rng = &mut TestRng::default();
+
+    // Sample the test environment.
+    let crate::test_helpers::TestEnv { ledger, private_key, view_key, .. } = crate::test_helpers::sample_test_env(rng);
+
+    // A helper function to get the record counts.
+    let get_record_counts = || {
+        let slow_spent_filter = RecordsFilter::SlowSpent(private_key);
+        let slow_unspent_filter = RecordsFilter::SlowUnspent(private_key);
+        let spent_records = ledger.find_records(&view_key, RecordsFilter::Spent).unwrap().collect_vec().len();
+        let slow_spent_records = ledger.find_records(&view_key, slow_spent_filter).unwrap().collect_vec().len();
+        let unspent_records = ledger.find_records(&view_key, RecordsFilter::Unspent).unwrap().collect_vec().len();
+        let slow_unspent_records = ledger.find_records(&view_key, slow_unspent_filter).unwrap().collect_vec().len();
+        let records = ledger.records().collect_vec().len();
+        (spent_records, slow_spent_records, unspent_records, slow_unspent_records, records)
+    };
+
+    // Check the initial record counts.
+    let (
+        initial_spent_records,
+        initial_slow_spent_records,
+        initial_unspent_records,
+        initial_slow_unspent_records,
+        initial_records,
+    ) = get_record_counts();
+    assert_eq!(0, initial_spent_records);
+    assert_eq!(0, initial_slow_spent_records);
+    assert_eq!(4, initial_unspent_records);
+    assert_eq!(4, initial_slow_unspent_records);
+    assert_eq!(4, initial_records);
+
+    // Initialize the two programs.
+    let program_0 = Program::from_str(
+        r"
+program child.aleo;
+
+record data:
+    owner as address.private;
+    val as u64.private;
+
+function mint:
+    cast self.signer 0u64 into r0 as data.record;
+    output r0 as data.record;
+
+function burn:
+    input r0 as data.record;
+    ",
+    )
+    .unwrap();
+
+    let program_1 = Program::from_str(
+        r"
+import child.aleo;
+
+program parent.aleo;
+
+function create_without_output:
+    call child.aleo/mint into r0;
+
+function create:
+    call child.aleo/mint into r0;
+    output r0 as child.aleo/data.record;
+
+function consume_without_call:
+    input r0 as child.aleo/data.record;
+
+function consume:
+    input r0 as child.aleo/data.record;
+    call child.aleo/burn r0;
+
+function create_and_consume:
+    call child.aleo/mint into r0;
+    call child.aleo/burn r0;
+    ",
+    )
+    .unwrap();
+
+    // Deploy the programs.
+    let deployment_0 = ledger.vm().deploy(&private_key, &program_0, None, 0, None, rng).unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![deployment_0], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    let deployment_1 = ledger.vm().deploy(&private_key, &program_1, None, 0, None, rng).unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![deployment_1], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Call the `mint` function.
+    let transaction = ledger
+        .vm()
+        .execute(&private_key, ("child.aleo", "mint"), Vec::<Value<CurrentNetwork>>::new().iter(), None, 0, None, rng)
+        .unwrap();
+    let mint_record = transaction.records().last().unwrap().1.decrypt(&view_key).unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Check the record counts.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records);
+    assert_eq!(num_unspent_records, initial_unspent_records + 1);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 1);
+    assert_eq!(num_records, initial_records + 1);
+
+    // Call the `create_without_output` function.
+    let transaction = ledger
+        .vm()
+        .execute(
+            &private_key,
+            ("parent.aleo", "create_without_output"),
+            Vec::<Value<CurrentNetwork>>::new().iter(),
+            None,
+            0,
+            None,
+            rng,
+        )
+        .unwrap();
+
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Check the record counts.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records);
+    assert_eq!(num_unspent_records, initial_unspent_records + 2);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 2);
+    assert_eq!(num_records, initial_records + 2);
+
+    // Call the `burn` function on record created by `create_without_output`.
+    let record = block.records().collect_vec().last().unwrap().1.decrypt(&view_key).unwrap();
+    let transaction = ledger
+        .vm()
+        .execute(&private_key, ("child.aleo", "burn"), vec![Value::Record(record)].iter(), None, 0, None, rng)
+        .unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Check the record counts.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records + 1);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records + 1);
+    assert_eq!(num_unspent_records, initial_unspent_records + 1);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 1);
+    assert_eq!(num_records, initial_records + 2);
+
+    // Call the `create` function.
+    let transaction = ledger
+        .vm()
+        .execute(
+            &private_key,
+            ("parent.aleo", "create"),
+            Vec::<Value<CurrentNetwork>>::new().iter(),
+            None,
+            0,
+            None,
+            rng,
+        )
+        .unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Ensure that a record was created and spent.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records + 1);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records + 1);
+    assert_eq!(num_unspent_records, initial_unspent_records + 2);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 2);
+    assert_eq!(num_records, initial_records + 3);
+
+    // Call the `consume_without_call` function.
+    let transaction = ledger
+        .vm()
+        .execute(
+            &private_key,
+            ("parent.aleo", "consume_without_call"),
+            vec![Value::Record(mint_record.clone())].iter(),
+            None,
+            0,
+            None,
+            rng,
+        )
+        .unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Ensure that no records were created or spent.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records + 1);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records + 1);
+    assert_eq!(num_unspent_records, initial_unspent_records + 2);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 2);
+    assert_eq!(num_records, initial_records + 3);
+
+    // Call the `consume` function.
+    let transaction = ledger
+        .vm()
+        .execute(&private_key, ("parent.aleo", "consume"), vec![Value::Record(mint_record)].iter(), None, 0, None, rng)
+        .unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Ensure that the record was spent.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records + 2);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records + 2);
+    assert_eq!(num_unspent_records, initial_unspent_records + 1);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 1);
+    assert_eq!(num_records, initial_records + 3);
+
+    // Call the `create_and_consume` function.
+    let transaction = ledger
+        .vm()
+        .execute(
+            &private_key,
+            ("parent.aleo", "create_and_consume"),
+            Vec::<Value<CurrentNetwork>>::new().iter(),
+            None,
+            0,
+            None,
+            rng,
+        )
+        .unwrap();
+    let block =
+        ledger.prepare_advance_to_next_beacon_block(&private_key, vec![], vec![], vec![transaction], rng).unwrap();
+    assert_eq!(block.transactions().num_accepted(), 1);
+    ledger.advance_to_next_block(&block).unwrap();
+
+    // Ensure that a record was created and spent.
+    let (num_spent_records, num_slow_spent_records, num_unspent_records, num_slow_unspent_records, num_records) =
+        get_record_counts();
+    assert_eq!(num_spent_records, initial_spent_records + 3);
+    assert_eq!(num_slow_spent_records, initial_slow_spent_records + 3);
+    assert_eq!(num_unspent_records, initial_unspent_records + 1);
+    assert_eq!(num_slow_unspent_records, initial_slow_unspent_records + 1);
+    assert_eq!(num_records, initial_records + 4);
+}