Write tests and tsconfig

Author: Nitish-bot

basics/pda-rent-payer/steel/api/src/lib.rs

@@ -15,4 +15,4 @@ pub mod prelude {
 use steel::*;
 
 // TODO Set program id
-declare_id!("z7msBPQHDJjTvdQRoEcKyENgXDhSRYeHieN1ZMTqo35"); 
+declare_id!("12rpZ18eGj7BeKvSFRZ45cni97HctTbKziBnW3MsH3NG"); 

basics/pda-rent-payer/steel/tests/test.ts

@@ -0,0 +1,107 @@
+import {
+    type Blockhash,
+    Keypair,
+    LAMPORTS_PER_SOL,
+    PublicKey,
+    SystemProgram,
+    Transaction,
+    TransactionInstruction,
+} from "@solana/web3.js";
+import { assert } from "chai";
+import { before, describe, it } from "mocha";
+import {
+  type BanksClient,
+  type ProgramTestContext,
+  start,
+} from "solana-bankrun";
+  
+// Constants
+const PROGRAM_ID = new PublicKey(
+  "12rpZ18eGj7BeKvSFRZ45cni97HctTbKziBnW3MsH3NG",
+);
+const VAULT_SEED = Buffer.from("rent_vault");
+const NEW_ACCOUNT_SEED = Buffer.from("new_account");
+const LOAD_LAMPORTS = LAMPORTS_PER_SOL; // 1 SOL
+
+const instructionDiscriminators = {
+    InitializeRentVault: Buffer.from([0]),
+    CreateNewAccount: Buffer.from([1]),
+}
+
+describe("Pay the rent for an account using a PDA", () => {
+  let context: ProgramTestContext;
+  let lastBlock: Blockhash;
+  let client: BanksClient;
+  let payer: Keypair;
+
+  before(async () => {
+    context = await start(
+      [{ name: "pda_rent_payer_program", programId: PROGRAM_ID }],
+      [],
+    );
+    client = context.banksClient;
+    payer = context.payer;
+    lastBlock = context.lastBlockhash;
+  });
+
+  it("Initialize rent vault PDA", async () => {
+    const [vault_pda, _] = await PublicKey.findProgramAddressSync(
+      [VAULT_SEED, payer.publicKey.toBuffer()],
+      PROGRAM_ID,
+    );
+
+    const data = Buffer.concat([instructionDiscriminators.InitializeRentVault, Buffer.from([LOAD_LAMPORTS])]);
+
+    const ix = new TransactionInstruction({
+      keys: [
+        { pubkey: payer.publicKey, isSigner: true, isWritable: true },
+        { pubkey: vault_pda, isSigner: false, isWritable: true },
+        { pubkey: SystemProgram.programId, isSigner: false, isWritable: false },
+      ],
+      programId: PROGRAM_ID,
+      data,
+    });
+
+    const tx = new Transaction();
+    tx.recentBlockhash = lastBlock;
+    tx.add(ix).sign(payer);
+
+    // Process Transaction with all the instructions
+    const transaction = await client.processTransaction(tx);
+
+    assert(
+      transaction.logMessages[3].startsWith(
+        "Program log: Initialized rent vault.",
+      ),
+    );
+  });
+
+  it("Create new account using rent vault", async () => {
+    const new_account = Keypair.generate();
+
+    const data = instructionDiscriminators.CreateNewAccount;
+
+    const ix = new TransactionInstruction({
+    keys: [
+        { pubkey: payer.publicKey, isSigner: true, isWritable: true },
+        { pubkey: new_account.publicKey, isSigner: false, isWritable: true },
+        { pubkey: SystemProgram.programId, isSigner: false, isWritable: false },
+    ],
+    programId: PROGRAM_ID,
+    data,
+    });
+
+    const tx = new Transaction();
+    tx.recentBlockhash = lastBlock;
+    tx.add(ix).sign(payer, new_account);
+
+    // Process Transaction with all the instructions
+    const transaction = await client.processTransaction(tx);
+
+    assert(
+    transaction.logMessages[3].startsWith(
+        "Program log: Created new account!",
+    ),
+    );
+  });
+});

basics/pda-rent-payer/steel/tsconfig.json

@@ -1,6 +1,6 @@
 {
     "compilerOptions": {
-      "types": ["mocha", "chai"],
+      "types": ["mocha", "chai", "node"],
       "typeRoots": ["./node_modules/@types"],
       "lib": ["es2015"],
       "module": "commonjs",