feat: add litesvm test for transfer-sol anchor program

* Updated package.json to include litesvm dependency.
* Modified tsconfig.json to use 'nodenext' module.
* Added litesvm test cases for transferring SOL using both CPI and program calls.

Author: sol-warrior

basics/transfer-sol/anchor/package.json

@@ -2,7 +2,8 @@
 	"type": "module",
 	"dependencies": {
 		"@coral-xyz/anchor": "0.32.1",
-		"@solana/web3.js": "^1.95.2"
+		"@solana/web3.js": "^1.95.2",
+		"litesvm": "^0.4.0"
 	},
 	"devDependencies": {
 		"@types/bn.js": "^5.1.0",

basics/transfer-sol/anchor/pnpm-lock.yaml

@@ -0,0 +1,99 @@
+import anchor from "@coral-xyz/anchor";
+import {
+	Keypair,
+	LAMPORTS_PER_SOL,
+	PublicKey,
+	SystemProgram,
+	Transaction,
+	TransactionInstruction,
+} from "@solana/web3.js";
+import { assert } from "chai";
+import { LiteSVM } from "litesvm";
+import Idl from "../target/idl/transfer_sol.json" with { type: "json" };
+
+describe("LiteSVM: Transfer SOL", () => {
+	const svm = new LiteSVM();
+	const programId = new PublicKey(Idl.address);
+	const coder = new anchor.BorshCoder(Idl as anchor.Idl);
+	const payer = Keypair.generate();
+	svm.airdrop(payer.publicKey, BigInt(5 * LAMPORTS_PER_SOL));
+
+	const programFilePath = new URL(
+		"../target/deploy/transfer_sol.so",
+		import.meta.url,
+	).pathname;
+	svm.addProgramFromFile(programId, programFilePath);
+
+	it("Transfer SOL with CPI", () => {
+		const recipient = Keypair.generate();
+
+		const ixArgs = {
+			amount: new anchor.BN(LAMPORTS_PER_SOL),
+		};
+		const data = coder.instruction.encode("transfer_sol_with_cpi", ixArgs);
+		const ix = new TransactionInstruction({
+			keys: [
+				{ pubkey: payer.publicKey, isSigner: true, isWritable: true },
+				{ pubkey: recipient.publicKey, isSigner: false, isWritable: true },
+				{ pubkey: SystemProgram.programId, isSigner: false, isWritable: false },
+			],
+			programId,
+			data,
+		});
+
+		const tx = new Transaction().add(ix);
+		tx.feePayer = payer.publicKey;
+		tx.recentBlockhash = svm.latestBlockhash();
+		tx.sign(payer);
+		svm.sendTransaction(tx);
+
+		const recipientAcc = svm.getAccount(recipient.publicKey);
+		assert.equal(recipientAcc.lamports, LAMPORTS_PER_SOL);
+	});
+
+	it("Transfer SOL with Program", () => {
+		const payerAccount = Keypair.generate();
+		const ixPayer = SystemProgram.createAccount({
+			fromPubkey: payer.publicKey,
+			newAccountPubkey: payerAccount.publicKey,
+			lamports: LAMPORTS_PER_SOL,
+			space: 0,
+			programId,
+		});
+		const txPayer = new Transaction().add(ixPayer);
+		txPayer.feePayer = payer.publicKey;
+		txPayer.recentBlockhash = svm.latestBlockhash();
+		txPayer.sign(payer, payerAccount);
+		svm.sendTransaction(txPayer);
+		svm.expireBlockhash();
+
+		const recipientAccount = Keypair.generate();
+
+		const ixArgs = {
+			amount: new anchor.BN(LAMPORTS_PER_SOL),
+		};
+		const data = coder.instruction.encode("transfer_sol_with_program", ixArgs);
+		const ix = new TransactionInstruction({
+			keys: [
+				{ pubkey: payerAccount.publicKey, isSigner: true, isWritable: true },
+				{
+					pubkey: recipientAccount.publicKey,
+					isSigner: false,
+					isWritable: true,
+				},
+				{ pubkey: SystemProgram.programId, isSigner: false, isWritable: false },
+			],
+			programId,
+			data,
+		});
+
+		const tx = new Transaction().add(ix);
+		tx.feePayer = payer.publicKey;
+		tx.recentBlockhash = svm.latestBlockhash();
+		tx.sign(payer, payerAccount);
+		svm.sendTransaction(tx);
+
+		const recipientAcc = svm.getAccount(recipientAccount.publicKey);
+		assert.equal(recipientAcc.lamports, LAMPORTS_PER_SOL);
+	});
+});

basics/transfer-sol/anchor/tests/litesvm.test.ts

@@ -1,10 +1,10 @@
 {
-  "compilerOptions": {
-    "types": ["mocha", "chai"],
-    "typeRoots": ["./node_modules/@types"],
-    "lib": ["es2015"],
-    "module": "commonjs",
-    "target": "es6",
-    "esModuleInterop": true
-  }
+	"compilerOptions": {
+		"types": ["mocha", "chai"],
+		"typeRoots": ["./node_modules/@types"],
+		"lib": ["es2015"],
+		"module": "nodenext",
+		"target": "es6",
+		"esModuleInterop": true
+	}
 }