chore: light client add more tests

forester/tests/test_compressible_ctoken.rs

@@ -324,12 +324,26 @@ async fn test_compressible_ctoken_compression() {
     assert_eq!(accounts.len(), 1);
     let account_state = &accounts[0];
     assert_eq!(account_state.pubkey, token_account_pubkey);
-    assert_eq!(account_state.account.mint, mint.to_bytes());
+    use light_token_interface::state::{AccountState, Token, ACCOUNT_TYPE_TOKEN_ACCOUNT};
     assert_eq!(
-        account_state.account.owner,
-        owner_keypair.pubkey().to_bytes()
+        account_state.account,
+        Token {
+            mint: mint.to_bytes().into(),
+            owner: owner_keypair.pubkey().to_bytes().into(),
+            amount: 0,
+            delegate: None,
+            state: AccountState::Initialized,
+            is_native: None,
+            delegated_amount: 0,
+            close_authority: None,
+            account_type: ACCOUNT_TYPE_TOKEN_ACCOUNT,
+            extensions: account_state.account.extensions.clone(),
+        }
+    );
+    assert!(
+        account_state.account.extensions.is_some(),
+        "compressible token account should have extensions"
     );
-    assert_eq!(account_state.account.amount, 0);
     assert!(account_state.lamports > 0);
     let lamports = account_state.lamports;
     // Test lamports update

forester/tests/test_indexer_interface.rs

@@ -515,9 +515,16 @@ async fn test_indexer_interface_scenarios() {
     );
     println!("  PASSED: Token account interface resolved with correct token data");
 
-    // ============ Test 3: getMultipleAccountInterfaces batch lookup ============
-    println!("\nTest 3: getMultipleAccountInterfaces batch lookup...");
-    let batch_addresses = vec![&decompressed_mint_pda, &compressible_token_account];
+    // ============ Test 3: getMultipleAccountInterfaces batch lookup (4 accounts) ============
+    println!("\nTest 3: getMultipleAccountInterfaces batch lookup (4 accounts)...");
+    // Include: decompressed mint PDA, compressible token account, compressed mint PDA (not found),
+    // and the compressed mint seed pubkey (not a known on-chain account).
+    let batch_addresses = vec![
+        &decompressed_mint_pda,
+        &compressible_token_account,
+        &bob_ata,
+        &charlie_ata,
+    ];
 
     let batch_response = photon_indexer
         .get_multiple_account_interfaces(batch_addresses.clone(), None)
@@ -526,8 +533,8 @@ async fn test_indexer_interface_scenarios() {
 
     assert_eq!(
         batch_response.value.len(),
-        2,
-        "Batch response should have exactly 2 results"
+        4,
+        "Batch response should have exactly 4 results"
     );
 
     // First result: decompressed mint
@@ -560,7 +567,36 @@ async fn test_indexer_interface_scenarios() {
         batch_token.account.lamports > 0,
         "Batch token account should have lamports > 0"
     );
-    println!("  PASSED: Batch lookup returned correct results");
+
+    // Third result: Bob's ATA (on-chain token account)
+    let batch_bob_ata = batch_response.value[2]
+        .as_ref()
+        .expect("Bob's ATA should be found in batch");
+    assert!(batch_bob_ata.is_hot(), "Bob's ATA should be hot (on-chain)");
+    assert_eq!(batch_bob_ata.key, bob_ata, "Bob's ATA key should match");
+    assert!(
+        batch_bob_ata.account.lamports > 0,
+        "Bob's ATA should have lamports > 0"
+    );
+
+    // Fourth result: Charlie's ATA (on-chain token account)
+    let batch_charlie_ata = batch_response.value[3]
+        .as_ref()
+        .expect("Charlie's ATA should be found in batch");
+    assert!(
+        batch_charlie_ata.is_hot(),
+        "Charlie's ATA should be hot (on-chain)"
+    );
+    assert_eq!(
+        batch_charlie_ata.key, charlie_ata,
+        "Charlie's ATA key should match"
+    );
+    assert!(
+        batch_charlie_ata.account.lamports > 0,
+        "Charlie's ATA should have lamports > 0"
+    );
+
+    println!("  PASSED: Batch lookup returned correct results for 4 accounts");
 
     // ============ Test 4: Verify fully compressed mint via getAccountInterface returns None ============
     // Fully compressed mints (after CompressAndCloseMint) have full mint data in the compressed DB.

sdk-libs/client/src/indexer/config.rs

@@ -28,3 +28,24 @@ impl Default for RetryConfig {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_retry_config_default_values() {
+        let config = RetryConfig::default();
+        assert_eq!(config.num_retries, 10);
+        assert_eq!(config.delay_ms, 400);
+        assert_eq!(config.max_delay_ms, 8000);
+    }
+
+    #[test]
+    fn test_indexer_rpc_config_new_sets_slot() {
+        let slot = 42u64;
+        let config = IndexerRpcConfig::new(slot);
+        assert_eq!(config.slot, slot);
+        assert_eq!(config.retry_config, RetryConfig::default());
+    }
+}

sdk-libs/client/src/interface/pack.rs

@@ -123,3 +123,113 @@ fn pack_proof_internal(
         system_accounts_offset: system_offset as u8,
     })
 }
+
+#[cfg(test)]
+mod tests {
+    use light_compressed_account::TreeType;
+    use solana_pubkey::Pubkey;
+
+    use super::{pack_proof, pack_proof_for_mints};
+    use crate::indexer::{TreeInfo, ValidityProofWithContext};
+
+    fn make_state_v1_tree_info() -> TreeInfo {
+        TreeInfo {
+            tree_type: TreeType::StateV1,
+            tree: Pubkey::new_unique(),
+            queue: Pubkey::new_unique(),
+            cpi_context: None,
+            next_tree_info: None,
+        }
+    }
+
+    #[test]
+    fn test_pack_proof_minimal_valid_proof_no_cpi_context() {
+        let program_id = Pubkey::new_unique();
+        let proof = ValidityProofWithContext::default();
+        let output_tree = make_state_v1_tree_info();
+
+        let result = pack_proof(&program_id, proof, &output_tree, None).unwrap();
+
+        // v2 system accounts (with self_program, no cpi_context):
+        //   light_system_program, cpi_signer, registered_program_pda,
+        //   account_compression_authority, account_compression_program, system_program = 6
+        // + output queue = 1
+        // Total = 7
+        assert_eq!(
+            result.remaining_accounts.len(),
+            7,
+            "expected 7 remaining accounts without cpi_context"
+        );
+        assert_eq!(result.state_tree_index, None);
+        // system_accounts_offset is 0 because system accounts are prepended
+        // at the start of remaining_accounts by add_system_accounts_raw
+        assert_eq!(result.system_accounts_offset, 0);
+    }
+
+    #[test]
+    fn test_pack_proof_with_cpi_context_adds_extra_account() {
+        let program_id = Pubkey::new_unique();
+        let cpi_context_pubkey = Pubkey::new_unique();
+        let proof = ValidityProofWithContext::default();
+        let output_tree = make_state_v1_tree_info();
+
+        let result_no_cpi = pack_proof(&program_id, proof.clone(), &output_tree, None).unwrap();
+        let result_with_cpi =
+            pack_proof(&program_id, proof, &output_tree, Some(cpi_context_pubkey)).unwrap();
+
+        // cpi_context adds one more account
+        assert_eq!(
+            result_with_cpi.remaining_accounts.len(),
+            result_no_cpi.remaining_accounts.len() + 1,
+            "cpi_context should add exactly one account"
+        );
+    }
+
+    #[test]
+    fn test_pack_proof_for_mints_adds_state_tree_index() {
+        let program_id = Pubkey::new_unique();
+        let proof = ValidityProofWithContext::default();
+        let output_tree = make_state_v1_tree_info();
+
+        let result = pack_proof_for_mints(&program_id, proof, &output_tree, None).unwrap();
+
+        // state_tree_index must be Some for mint creation path
+        assert!(
+            result.state_tree_index.is_some(),
+            "pack_proof_for_mints should set state_tree_index"
+        );
+        let idx = result.state_tree_index.unwrap();
+        assert!(
+            (idx as usize) < result.remaining_accounts.len(),
+            "state_tree_index must be a valid index into remaining_accounts"
+        );
+    }
+
+    #[test]
+    fn test_pack_proof_vs_pack_proof_for_mints_output_tree_index_consistent() {
+        let program_id = Pubkey::new_unique();
+        let proof = ValidityProofWithContext::default();
+        let tree = Pubkey::new_unique();
+        let queue = Pubkey::new_unique();
+        let output_tree = TreeInfo {
+            tree_type: TreeType::StateV1,
+            tree,
+            queue,
+            cpi_context: None,
+            next_tree_info: None,
+        };
+
+        let r1 = pack_proof(&program_id, proof.clone(), &output_tree, None).unwrap();
+        let r2 = pack_proof_for_mints(&program_id, proof, &output_tree, None).unwrap();
+
+        // Both should have the same output_tree_index since they use the same output_tree
+        assert_eq!(r1.output_tree_index, r2.output_tree_index);
+
+        // pack_proof_for_mints adds exactly one account (the state tree)
+        assert_eq!(
+            r2.remaining_accounts.len(),
+            r1.remaining_accounts.len() + 1,
+            "pack_proof_for_mints adds exactly one account (the state tree)"
+        );
+    }
+}

sdk-libs/client/src/interface/tx_size.rs

@@ -153,6 +153,93 @@ mod tests {
 
     use super::*;
 
+    #[test]
+    fn test_empty_input_returns_empty_batches() {
+        let payer = Pubkey::new_unique();
+        let result = split_by_tx_size(vec![], &payer, None).unwrap();
+        assert_eq!(result, vec![] as Vec<Vec<Instruction>>);
+    }
+
+    #[test]
+    fn test_single_small_instruction_one_batch() {
+        let payer = Pubkey::new_unique();
+        let ix = Instruction {
+            program_id: Pubkey::new_unique(),
+            accounts: vec![AccountMeta::new(Pubkey::new_unique(), false)],
+            data: vec![0u8; 10],
+        };
+        let batches = split_by_tx_size(vec![ix], &payer, None).unwrap();
+        assert_eq!(batches.len(), 1);
+        assert_eq!(batches[0].len(), 1);
+    }
+
+    #[test]
+    fn test_multiple_small_instructions_fit_in_one_batch() {
+        let payer = Pubkey::new_unique();
+        // Three tiny instructions that easily fit in one tx
+        let instructions: Vec<Instruction> = (0..3)
+            .map(|_| Instruction {
+                program_id: Pubkey::new_unique(),
+                accounts: vec![AccountMeta::new(Pubkey::new_unique(), false)],
+                data: vec![0u8; 5],
+            })
+            .collect();
+        let batches = split_by_tx_size(instructions, &payer, None).unwrap();
+        assert_eq!(batches.len(), 1);
+        assert_eq!(batches[0].len(), 3);
+    }
+
+    #[test]
+    fn test_instructions_split_into_multiple_batches_with_small_max_size() {
+        let payer = Pubkey::new_unique();
+        // Use a very small max_size to force each instruction into its own batch.
+        // Each instruction has 1 account + 10 bytes data. Estimate:
+        //   header(3) + accounts(compact+32*2) + blockhash(32) + ixs + sigs ~ 200 bytes
+        // Set max_size=250 to allow one instruction per tx but not two.
+        let max_size = 250usize;
+        let instructions: Vec<Instruction> = (0..3)
+            .map(|_| Instruction {
+                program_id: Pubkey::new_unique(),
+                accounts: vec![AccountMeta::new(Pubkey::new_unique(), false)],
+                data: vec![0u8; 10],
+            })
+            .collect();
+        let batches = split_by_tx_size(instructions, &payer, Some(max_size)).unwrap();
+        assert_eq!(
+            batches.len(),
+            3,
+            "each of 3 instructions should be in its own batch at max_size=250"
+        );
+        for batch in &batches {
+            assert_eq!(
+                batch.len(),
+                1,
+                "each batch should contain exactly one instruction"
+            );
+            assert!(estimate_tx_size(batch, &payer) <= max_size);
+        }
+    }
+
+    #[test]
+    fn test_single_instruction_exceeding_max_size_returns_error() {
+        let payer = Pubkey::new_unique();
+        let oversized_ix = Instruction {
+            program_id: Pubkey::new_unique(),
+            accounts: vec![AccountMeta::new(Pubkey::new_unique(), false)],
+            data: vec![0u8; 100],
+        };
+        // Set max_size to 50 - smaller than any valid instruction
+        let result = split_by_tx_size(vec![oversized_ix], &payer, Some(50));
+        assert!(result.is_err());
+        let err = result.unwrap_err();
+        assert_eq!(err.instruction_index, 0);
+        assert_eq!(err.max_size, 50);
+        assert!(err.estimated_size > 50);
+        // Display impl sanity check
+        let msg = err.to_string();
+        assert!(msg.contains("instruction at index 0"));
+    }
+
     #[test]
     fn test_split_by_tx_size() {
         let payer = Pubkey::new_unique();

sdk-tests/client-test/Cargo.toml

@@ -30,6 +30,7 @@ light-token = { workspace = true }
 light-indexed-array = { workspace = true }
 light-merkle-tree-reference = { workspace = true }
 light-macros = { workspace = true }
+light-event = { workspace = true }
 
 tokio = { workspace = true }
 rand = { workspace = true }