solana: mcm / timelock cu overhead analysis, capacity tests isolation (#683)

* chore: capacity test separation

* feat: additional test instructions

* chore: mcm/timelock cu overhead analysis

* fix: lint

* chore: omit variable ix count

* chore: clean up

* chore: remove unnecessary test cases

Author: jadepark-dev

chains/solana/contracts/programs/external-program-cpi-stub/src/lib.rs

@@ -3,6 +3,7 @@
  * Used to test CPIs made by other programs (with actual business logic).
  */
 use anchor_lang::prelude::*;
+use anchor_lang::solana_program::keccak;
 
 declare_id!("2zZwzyptLqwFJFEFxjPvrdhiGpH9pJ3MfrrmZX6NTKxm");
 
@@ -55,6 +56,28 @@ pub mod external_program_cpi_stub {
         );
         Ok(())
     }
+
+    /// no-op instruction that does nothing, also can be used to test maximum account references(remaining_accounts)
+    pub fn no_op(_ctx: Context<Empty>) -> Result<()> {
+        Ok(())
+    }
+
+    pub fn compute_heavy(_ctx: Context<Empty>, iterations: u32) -> Result<()> {
+        let mut hash = [0u8; 32];
+
+        // Initialize with some data
+        hash.iter_mut().enumerate().for_each(|(i, byte)| {
+            *byte = i as u8;
+        });
+
+        // Perform multiple hash operations
+        for _ in 0..iterations {
+            hash = keccak::hash(&hash).to_bytes();
+        }
+
+        // Don't log with msg!() to avoid variable CU consumption
+        Ok(())
+    }
 }
 
 const VALUE_SEED: &[u8] = b"u8_value";

chains/solana/contracts/target/idl/external_program_cpi_stub.json

@@ -94,6 +94,24 @@
           "type": "bytes"
         }
       ]
+    },
+    {
+      "name": "noOp",
+      "docs": [
+        "no-op instruction that does nothing, also can be used to test maximum account references(remaining_accounts)"
+      ],
+      "accounts": [],
+      "args": []
+    },
+    {
+      "name": "computeHeavy",
+      "accounts": [],
+      "args": [
+        {
+          "name": "iterations",
+          "type": "u32"
+        }
+      ]
     }
   ],
   "accounts": [

chains/solana/contracts/target/types/external_program_cpi_stub.ts

@@ -94,6 +94,24 @@ export type ExternalProgramCpiStub = {
           "type": "bytes"
         }
       ]
+    },
+    {
+      "name": "noOp",
+      "docs": [
+        "no-op instruction that does nothing, also can be used to test maximum account references(remaining_accounts)"
+      ],
+      "accounts": [],
+      "args": []
+    },
+    {
+      "name": "computeHeavy",
+      "accounts": [],
+      "args": [
+        {
+          "name": "iterations",
+          "type": "u32"
+        }
+      ]
     }
   ],
   "accounts": [
@@ -208,6 +226,24 @@ export const IDL: ExternalProgramCpiStub = {
           "type": "bytes"
         }
       ]
+    },
+    {
+      "name": "noOp",
+      "docs": [
+        "no-op instruction that does nothing, also can be used to test maximum account references(remaining_accounts)"
+      ],
+      "accounts": [],
+      "args": []
+    },
+    {
+      "name": "computeHeavy",
+      "accounts": [],
+      "args": [
+        {
+          "name": "iterations",
+          "type": "u32"
+        }
+      ]
     }
   ],
   "accounts": [