Added flags to speed up local debugging for certain edge cases

sdk/src/dev/flags.ts

@@ -0,0 +1,4 @@
+// 🚨 :: These should all always be false in any committed code.
+export const DEV_FLAGS = {
+    TEST_COMPUTE_UNITS_OK_DURING_SIMULATION_BUT_FAIL_AT_RUNTIME: false, // Recreates the edge case where when sending a transaction the CU's are OK during simulation but fail at runtime.
+};

sdk/src/tx/txHandler.ts

@@ -29,6 +29,7 @@ import { CachedBlockhashFetcher } from './blockhashFetcher/cachedBlockhashFetche
 import { BaseBlockhashFetcher } from './blockhashFetcher/baseBlockhashFetcher';
 import { BlockhashFetcher } from './blockhashFetcher/types';
 import { isVersionedTransaction } from './utils';
+import { DEV_FLAGS } from '../dev/flags';
 
 /**
  * Explanation for SIGNATURE_BLOCK_AND_EXPIRY:
@@ -489,6 +490,10 @@ export class TxHandler {
 			};
 		}
 
+		if (DEV_FLAGS.TEST_COMPUTE_UNITS_OK_DURING_SIMULATION_BUT_FAIL_AT_RUNTIME) {
+			baseTxParams.computeUnits = 1000; // force low compute units to recreate the edge case where the CU's are OK during simulation but fail at runtime.
+		}
+
 		const instructionsArray = Array.isArray(instructions)
 			? instructions
 			: [instructions];

sdk/src/tx/whileValidTxSender.ts

@@ -12,6 +12,7 @@ import { BaseTxSender } from './baseTxSender';
 import bs58 from 'bs58';
 import { TxHandler } from './txHandler';
 import { IWallet } from '../types';
+import { DEV_FLAGS } from '../dev/flags';
 
 const DEFAULT_RETRY = 2000;
 
@@ -174,6 +175,11 @@ export class WhileValidTxSender extends BaseTxSender {
 		rawTransaction: Buffer | Uint8Array,
 		opts: ConfirmOptions
 	): Promise<TxSigAndSlot> {
+
+		if (DEV_FLAGS.TEST_COMPUTE_UNITS_OK_DURING_SIMULATION_BUT_FAIL_AT_RUNTIME) {
+			opts.skipPreflight = true; // Skip preflight to recreate the edge case where the CU's are OK during simulation but fail at runtime.
+		}
+
 		const startTime = this.getTimestamp();
 
 		const txid = await this.connection.sendRawTransaction(rawTransaction, opts);