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fix: fixed system-coder tests #4210

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Merged
jamie-osec merged 5 commits into from
Feb 12, 2026
Merged

fix: fixed system-coder tests #4210

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4521f39
fix: fixed system-coder tests that depend on SYSVAR_RECENT_BLOCKHASHE…
tiago18c Jan 30, 2026
69d9038
longer sleeps
tiago18c Jan 30, 2026
5cbc404
attempting nonce transactions using durable nonces workflow
tiago18c Jan 30, 2026
5edd59a
Fixed provider overwriting blockhash. Additional fix to nonce tests.
tiago18c Feb 2, 2026
17d78be
Preserving blockhash behaviour on default '11111111111111111111111111…
tiago18c Feb 4, 2026
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65 changes: 52 additions & 13 deletions tests/custom-coder/tests/system-coder.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import {
PublicKey,
SystemProgram,
SYSVAR_RECENT_BLOCKHASHES_PUBKEY,
Transaction,
} from "@solana/web3.js";
import * as assert from "assert";
import BN from "bn.js";
Expand Down Expand Up @@ -299,19 +300,28 @@ describe("system-coder", () => {
])
.signers([nonceKeypair])
.rpc();

let nonceAccount = await program.account.nonce.fetch(
nonceKeypair.publicKey
);
let previousNonce = nonceAccount.nonce.toString();

// These have to be separate to make sure advance is in another slot.
await program.methods
const tx = await program.methods
.advanceNonceAccount(provider.wallet.publicKey)
.accounts({
nonce: nonceKeypair.publicKey,
recentBlockhashes: SYSVAR_RECENT_BLOCKHASHES_PUBKEY,
})
.rpc();
.transaction();
tx.recentBlockhash = previousNonce;
tx.feePayer = provider.publicKey;

await provider.sendAndConfirm(tx, []);
// assert
const nonceAccount = await program.account.nonce.fetch(
nonceKeypair.publicKey
);
nonceAccount = await program.account.nonce.fetch(nonceKeypair.publicKey);
assert.notEqual(nonceAccount, null);
assert.notEqual(nonceAccount.nonce.toString(), previousNonce);
});

it("Authorizes a nonce account", async () => {
Expand Down Expand Up @@ -383,7 +393,13 @@ describe("system-coder", () => {
])
.signers([nonceKeypair])
.rpc();
await program.methods

let nonceAccount = await program.account.nonce.fetch(
nonceKeypair.publicKey
);
let previousNonce = nonceAccount.nonce.toString();

const tx = await program.methods
.advanceNonceAccount(provider.wallet.publicKey)
.accounts({
nonce: nonceKeypair.publicKey,
Expand All @@ -398,24 +414,47 @@ describe("system-coder", () => {
})
.instruction(),
])
.rpc();
.transaction();
tx.feePayer = provider.publicKey;
tx.recentBlockhash = previousNonce;

await provider.sendAndConfirm(tx, []);

nonceAccount = await program.account.nonce.fetch(nonceKeypair.publicKey);
previousNonce = nonceAccount.nonce.toString();

await program.methods
.authorizeNonceAccount(aliceKeypair.publicKey)
.accounts({
nonce: nonceKeypair.publicKey,
authorized: provider.wallet.publicKey,
})
.rpc();
await program.methods
.withdrawNonceAccount(new BN(amount))

let withdrawTx = await program.methods
.advanceNonceAccount(aliceKeypair.publicKey)
.accounts({
authorized: aliceKeypair.publicKey,
nonce: nonceKeypair.publicKey,
recentBlockhashes: SYSVAR_RECENT_BLOCKHASHES_PUBKEY,
to: aliceKeypair.publicKey,
authorized: aliceKeypair.publicKey,
})
.signers([aliceKeypair])
.rpc();
.postInstructions([
await program.methods
.withdrawNonceAccount(new BN(amount))
.accounts({
authorized: aliceKeypair.publicKey,
nonce: nonceKeypair.publicKey,
recentBlockhashes: SYSVAR_RECENT_BLOCKHASHES_PUBKEY,
to: aliceKeypair.publicKey,
})
.instruction(),
])
.transaction();

withdrawTx.feePayer = provider.publicKey;
withdrawTx.recentBlockhash = previousNonce;
await provider.sendAndConfirm(withdrawTx, [aliceKeypair]);

// assert
const aliceBalanceAfter = (
await program.provider.connection.getAccountInfo(aliceKeypair.publicKey)
Expand Down
12 changes: 9 additions & 3 deletions ts/packages/anchor/src/provider.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -150,9 +150,15 @@ export class AnchorProvider implements Provider {
}
} else {
tx.feePayer = tx.feePayer ?? this.wallet.publicKey;
tx.recentBlockhash = (
await this.connection.getLatestBlockhash(opts.preflightCommitment)
).blockhash;

if (
!tx.recentBlockhash ||
tx.recentBlockhash === "11111111111111111111111111111111"
) {
tx.recentBlockhash = (
await this.connection.getLatestBlockhash(opts.preflightCommitment)
).blockhash;
}

if (signers) {
for (const signer of signers) {
Expand Down
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