chore: add localnet gen block (#6176)

Description
---
added localnet gen block so that cucumbers can use that block. Local net
used esmeralda block before, but when rewinding back to 0, the ouput_mr
will be different between esmeralda and localnet, so we need a unique
block for local net as well.

Author: SWvheerden

base_layer/core/src/blocks/genesis_block.rs

@@ -48,7 +48,7 @@ pub fn get_genesis_block(network: Network) -> ChainBlock {
         NextNet => get_nextnet_genesis_block(),
         Igor => get_igor_genesis_block(),
         Esmeralda => get_esmeralda_genesis_block(),
-        LocalNet => get_esmeralda_genesis_block(),
+        LocalNet => get_localnet_genesis_block(),
     }
 }
 
@@ -321,6 +321,40 @@ fn get_esmeralda_genesis_block_raw() -> Block {
     get_raw_block(&genesis_timestamp, &not_before_proof.to_vec())
 }
 
+pub fn get_localnet_genesis_block() -> ChainBlock {
+    // lets get the block
+    let block = crate::blocks::genesis_block::get_localnet_genesis_block_raw();
+    let accumulated_data = BlockHeaderAccumulatedData {
+        hash: block.hash(),
+        total_kernel_offset: block.header.total_kernel_offset.clone(),
+        achieved_difficulty: Difficulty::min(),
+        total_accumulated_difficulty: 1.into(),
+        accumulated_randomx_difficulty: AccumulatedDifficulty::min(),
+        accumulated_sha3x_difficulty: AccumulatedDifficulty::min(),
+        target_difficulty: Difficulty::min(),
+    };
+    ChainBlock::try_construct(Arc::new(block), accumulated_data).unwrap()
+}
+
+fn get_localnet_genesis_block_raw() -> Block {
+    // Set genesis timestamp
+    let genesis_timestamp = DateTime::parse_from_rfc2822("20 Feb 2024 08:01:00 +0200").expect("parse may not fail");
+    // Let us add a "not before" proof to the genesis block
+    let not_before_proof =
+        b"as I sip my drink, thoughts of esmeralda consume my mind, like a refreshing nourishing draught \
+        \
+        The New York Times , 2000/01/01 \
+        \
+        Lorem Ipsum \
+        \
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore \
+        magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo \
+        consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla \
+        pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id \
+        est laborum.";
+    get_raw_block(&genesis_timestamp, &not_before_proof.to_vec())
+}
+
 fn get_raw_block(genesis_timestamp: &DateTime<FixedOffset>, not_before_proof: &[u8]) -> Block {
     // Note: Use 'print_new_genesis_block_values' in core/tests/helpers/block_builders.rs to generate the required
     // fields below
@@ -418,6 +452,13 @@ mod test {
         check_block(Network::Igor, &block, 0, 0);
     }
 
+    #[test]
+    fn localnet_genesis_sanity_check() {
+        // Note: If outputs and kernels are added, this test will fail unless you explicitly check that network == Igor
+        let block = get_localnet_genesis_block();
+        check_block(Network::LocalNet, &block, 0, 0);
+    }
+
     fn check_block(network: Network, block: &ChainBlock, expected_outputs: usize, expected_kernels: usize) {
         assert!(block.block().body.inputs().is_empty());
         assert_eq!(block.block().body.kernels().len(), expected_kernels);

base_layer/core/src/chain_storage/blockchain_database.rs

@@ -2522,7 +2522,6 @@ mod test {
                 create_new_blockchain,
                 create_orphan_chain,
                 create_test_blockchain_db,
-                rewind_smt,
                 update_block_and_smt,
                 TempDatabase,
             },
@@ -2602,11 +2601,9 @@ mod test {
             ])
             .await;
             // Create reorg chain
+            // we only need a smt, this one will not be technically correct, but due to the use of mockvalidators(true),
+            // they will pass all mr tests
             let mut smt = db.fetch_tip_smt().unwrap();
-            let d_block = mainchain.get("D").unwrap().clone();
-            rewind_smt(d_block, &mut smt);
-            let c_block = mainchain.get("C").unwrap().clone();
-            rewind_smt(c_block, &mut smt);
             let fork_root = mainchain.get("B").unwrap().clone();
             let (_, reorg_chain) = create_orphan_chain(
                 &db,
@@ -2722,7 +2719,6 @@ mod test {
         #[tokio::test]
         async fn it_correctly_detects_strongest_orphan_tips() {
             let db = create_new_blockchain();
-            let mut gen_smt = db.fetch_tip_smt().unwrap();
             let validator = MockValidator::new(true);
             let (_, main_chain) = create_main_chain(&db, &[
                 ("A->GB", 1, 120),
@@ -2737,20 +2733,9 @@ mod test {
 
             // Fork 1 (with 3 blocks)
             let fork_root_1 = main_chain.get("A").unwrap().clone();
+            // we only need a smt, this one will not be technically correct, but due to the use of mockvalidators(true),
+            // they will pass all mr tests
             let mut smt = db.fetch_tip_smt().unwrap();
-            let g_block = main_chain.get("G").unwrap().clone();
-            rewind_smt(g_block, &mut smt);
-            let f_block = main_chain.get("F").unwrap().clone();
-            rewind_smt(f_block, &mut smt);
-            let e_block = main_chain.get("E").unwrap().clone();
-            rewind_smt(e_block, &mut smt);
-            let d_block = main_chain.get("D").unwrap().clone();
-            rewind_smt(d_block, &mut smt);
-            let c_block = main_chain.get("C").unwrap().clone();
-            rewind_smt(c_block, &mut smt);
-            let mut c_smt = smt.clone();
-            let b_block = main_chain.get("B").unwrap().clone();
-            rewind_smt(b_block, &mut smt);
 
             let (_, orphan_chain_1) = create_chained_blocks(
                 &[("B2->GB", 1, 120), ("C2->B2", 1, 120), ("D2->C2", 1, 120)],
@@ -2761,11 +2746,11 @@ mod test {
 
             // Fork 2 (with 1 block)
             let fork_root_2 = main_chain.get("GB").unwrap().clone();
-            let (_, orphan_chain_2) = create_chained_blocks(&[("B3->GB", 1, 120)], fork_root_2, &mut gen_smt).await;
+            let (_, orphan_chain_2) = create_chained_blocks(&[("B3->GB", 1, 120)], fork_root_2, &mut smt).await;
 
             // Fork 3 (with 1 block)
             let fork_root_3 = main_chain.get("B").unwrap().clone();
-            let (_, orphan_chain_3) = create_chained_blocks(&[("B4->GB", 1, 120)], fork_root_3, &mut c_smt).await;
+            let (_, orphan_chain_3) = create_chained_blocks(&[("B4->GB", 1, 120)], fork_root_3, &mut smt).await;
 
             // Add blocks to db
             let mut access = db.db_write_access().unwrap();
@@ -2852,13 +2837,6 @@ mod test {
             )
             .await;
 
-            let b6_block = main_chain.get("6b").unwrap().clone();
-            rewind_smt(b6_block, &mut smt);
-            let b5_block = main_chain.get("5b").unwrap().clone();
-            rewind_smt(b5_block, &mut smt);
-            let b4_block = main_chain.get("4b").unwrap().clone();
-            rewind_smt(b4_block, &mut smt);
-
             // Add orphans out of height order
             for name in ["5b", "3b", "4b", "6b"] {
                 let block = orphan_chain_b.get(name).unwrap();
@@ -2875,8 +2853,6 @@ mod test {
             )
             .await;
 
-            let c7_block = main_chain.get("7c").unwrap().clone();
-            rewind_smt(c7_block, &mut smt);
             for name in ["7c", "5c", "6c", "4c"] {
                 let block = orphan_chain_c.get(name).unwrap();
                 let result = test.handle_possible_reorg(block.to_arc_block()).unwrap();
@@ -3270,9 +3246,9 @@ mod test {
 
         let mock_validator = MockValidator::new(true);
         let chain_strength_comparer = strongest_chain().by_sha3x_difficulty().build();
+        // we only need a smt, this one will not be technically correct, but due to the use of mockvalidators(true),
+        // they will pass all mr tests
         let mut smt = db.fetch_tip_smt().unwrap();
-        let d_block = mainchain.get("D").unwrap().clone();
-        rewind_smt(d_block, &mut smt);
         let fork_block = mainchain.get("C").unwrap().clone();
         let (_, reorg_chain) =
             create_chained_blocks(&[("D2->GB", 1, 120), ("E2->D2", 2, 120)], fork_block, &mut smt).await;

base_layer/core/src/chain_storage/tests/blockchain_database.rs

@@ -477,22 +477,6 @@ mod prepare_new_block {
 mod fetch_header_containing_kernel_mmr {
     use super::*;
     use crate::transactions::key_manager::create_memory_db_key_manager;
-
-    #[test]
-    fn it_returns_genesis() {
-        let db = setup();
-        let genesis = db.fetch_block(0, true).unwrap();
-        assert_eq!(genesis.block().body.kernels().len(), 1);
-        let mut mmr_position = 0;
-        genesis.block().body.kernels().iter().for_each(|_| {
-            let header = db.fetch_header_containing_kernel_mmr(mmr_position).unwrap();
-            assert_eq!(header.height(), 0);
-            mmr_position += 1;
-        });
-        let err = db.fetch_header_containing_kernel_mmr(mmr_position).unwrap_err();
-        matches!(err, ChainStorageError::ValueNotFound { .. });
-    }
-
     #[tokio::test]
     async fn it_returns_corresponding_header() {
         let db = setup();

base_layer/core/src/consensus/consensus_constants.rs

@@ -394,7 +394,7 @@ impl ConsensusConstants {
             max_randomx_seed_height: u64::MAX,
             max_extra_field_size: 200,
             proof_of_work: algos,
-            faucet_value: ESMERALDA_FAUCET_VALUE.into(), // The esmeralda genesis block is re-used for localnet
+            faucet_value: 0.into(),
             transaction_weight: TransactionWeight::latest(),
             max_script_byte_size: 2048,
             input_version_range,

base_layer/core/src/test_helpers/blockchain.rs

@@ -34,7 +34,7 @@ use tari_common_types::{
     tari_address::TariAddress,
     types::{Commitment, FixedHash, HashOutput, PublicKey, Signature},
 };
-use tari_mmr::sparse_merkle_tree::{DeleteResult, NodeKey, ValueHash};
+use tari_mmr::sparse_merkle_tree::{NodeKey, ValueHash};
 use tari_storage::lmdb_store::LMDBConfig;
 use tari_test_utils::paths::create_temporary_data_path;
 use tari_utilities::ByteArray;
@@ -493,21 +493,6 @@ pub async fn create_main_chain<T: Into<BlockSpecs>>(
     (names, chain)
 }
 
-pub fn rewind_smt(block: Arc<ChainBlock>, smt: &mut OutputSmt) {
-    for input in block.block().body.inputs() {
-        let smt_key = NodeKey::try_from(input.commitment().unwrap().as_bytes()).unwrap();
-        let smt_node = ValueHash::try_from(input.smt_hash(block.header().height).as_slice()).unwrap();
-        smt.insert(smt_key, smt_node).unwrap();
-    }
-    for output in block.block().body.outputs() {
-        let smt_key = NodeKey::try_from(output.commitment.as_bytes()).unwrap();
-        match smt.delete(&smt_key).unwrap() {
-            DeleteResult::Deleted(_value_hash) => {},
-            DeleteResult::KeyNotFound => panic!("key should be found"),
-        };
-    }
-}
-
 pub async fn create_orphan_chain<T: Into<BlockSpecs>>(
     db: &BlockchainDatabase<TempDatabase>,
     blocks: T,

base_layer/tari_mining_helper_ffi/src/lib.rs

@@ -388,14 +388,14 @@ mod tests {
     fn detect_change_in_consensus_encoding() {
         #[cfg(tari_target_network_mainnet)]
         let (nonce, difficulty) = match Network::get_current_or_user_setting_or_default() {
-            Network::MainNet => (9205754023158580549, Difficulty::from_u64(1015).unwrap()),
-            Network::StageNet => (12022341430563186162, Difficulty::from_u64(1011).unwrap()),
+            Network::MainNet => (3145418102407526886, Difficulty::from_u64(1505).unwrap()),
+            Network::StageNet => (135043993867732261, Difficulty::from_u64(1059).unwrap()),
             _ => panic!("Invalid network for mainnet target"),
         };
         #[cfg(tari_target_network_nextnet)]
-        let (nonce, difficulty) = (8721374869059089110, Difficulty::from_u64(3037).unwrap());
+        let (nonce, difficulty) = (5154919981564263219, Difficulty::from_u64(2950).unwrap());
         #[cfg(not(any(tari_target_network_mainnet, tari_target_network_nextnet)))]
-        let (nonce, difficulty) = (9860518124890236943, Difficulty::from_u64(2724).unwrap());
+        let (nonce, difficulty) = (8520885611996410570, Difficulty::from_u64(3143).unwrap());
         unsafe {
             let mut error = -1;
             let error_ptr = &mut error as *mut c_int;

integration_tests/tests/steps/node_steps.rs

@@ -687,7 +687,7 @@ async fn no_meddling_with_data(world: &mut TariWorld, node: String) {
         Ok(_) => panic!("The block should not have been valid"),
         Err(e) => assert_eq!(
             "Chain storage error: Validation error: Block validation error: MMR size for Kernel does not match. \
-             Expected: 3, received: 4"
+             Expected: 2, received: 3"
                 .to_string(),
             e.message()
         ),
@@ -712,7 +712,7 @@ async fn no_meddling_with_data(world: &mut TariWorld, node: String) {
         Ok(_) => panic!("The block should not have been valid"),
         Err(e) => assert_eq!(
             "Chain storage error: Validation error: Block validation error: MMR size for UTXO does not match. \
-             Expected: 102, received: 103"
+             Expected: 2, received: 3"
                 .to_string(),
             e.message()
         ),