程序测试

测试自定义 Solana 程序需要将编译好的 .so 文件加载到 SVM 中，配置程序所需的账户，并向其发送指令。LiteSVM 在进程内完成所有这些操作——无需 validator。我们推荐使用 Codama JS Renderer 生成程序客户端，以便访问兼容的 Kit 插件。

加载程序

import { createClient, address, generateKeyPairSigner } from "@solana/kit";
import { litesvm } from "@solana/kit-plugin-litesvm";
import { signer } from "@solana/kit-plugin-signer";
import { myProgramPlugin } from "@my-program/sdk";
import * as fs from "node:fs";

const mySigner = await generateKeyPairSigner();
const client = createClient()
  .use(signer(mySigner))
  .use(litesvm())
  .use(myProgramPlugin());

// Configure for program testing
client.svm
  .withSigverify(false)
  .withBlockhashCheck(false)
  .withSysvars()
  .withBuiltins();

// Load program from .so file
const programId = address("YourProgramId111111111111111111111111111");
const soPath = "/path/to/target/deploy/my_program.so";

if (fs.existsSync(soPath)) {
  client.svm.addProgramFromFile(programId, soPath);
  console.log("Program loaded:", programId);

  // Verify program account
  const programAccount = client.svm.getAccount(programId);
  if (programAccount.exists) {
    console.log("  Executable:", programAccount.executable);
    console.log("  Data size:", programAccount.data.length, "bytes");
  }
} else {
  console.log("Program file not found:", soPath);
  console.log("Build with: cargo build-sbf");
}

完整程序测试配置

import { createClient, address, generateKeyPairSigner, lamports } from '@solana/kit';
import { litesvm } from '@solana/kit-plugin-litesvm';
import { signer } from '@solana/kit-plugin-signer';
import { myProgramPlugin } from '@my-program/sdk';
import * as fs from 'node:fs';

const mySigner = await generateKeyPairSigner();
const client = createClient()
    .use(signer(mySigner))
    .use(litesvm())
    .use(myProgramPlugin());

client.svm
    .withSigverify(false)
    .withBlockhashCheck(false)
    .withSysvars()
    .withBuiltins()
    .withPrecompiles()
    .withTransactionHistory(100n);

// Load program
const programId = address('YourProgramId111111111111111111111111111');
const soPath = '/path/to/target/deploy/my_program.so';

if (fs.existsSync(soPath)) {
    client.svm.addProgramFromFile(programId, soPath);
}

// Set up any required data accounts
const dataAccountAddress = address('DataAccount111111111111111111111111111');
const minBalance = client.svm.minimumBalanceForRentExemption(100n);
client.svm.setAccount({
    address: dataAccountAddress,
    data: new Uint8Array(100),
    executable: false,
    lamports: lamports(minBalance),
    programAddress: programId,
    space: 100n,
});

// Send the transaction
await client.myProgram.testInstruction({..}).sendTransaction();

// Verify state changes
const updatedAccount = client.myProgram.myAccount.fetch(dataAccountAddress);
// assert on decoded account

使用默认程序

对于需要标准程序的测试：

const mySigner = await generateKeyPairSigner();
const client = createClient().use(signer(mySigner)).use(litesvm());

// Add all default programs (System, BPF Loader, etc.)
client.svm.withDefaultPrograms();

// Or add specific programs you need
// The Token program, Associated Token program, etc. would need
// to be added manually via addProgramFromFile if needed

使用 cargo build-sbf 构建您的 Solana 程序以生成 .so 文件。

模式始终相同：

程序加载：使用 addProgramFromFile 加载已编译的程序，并从您的客户端导入 myProgramPlugin()
配置：根据需要启用 sysvars、内置程序和预编译程序
账户设置：使用 setAccount 预填充数据账户
发送：使用 client.myProgram.testInstruction({..}).sendTransaction() ——无需手动构建交易
验证：在执行后检查账户状态 (client.myProgram.myAccount.fetch)

一旦这个基础框架运行正常，您便可以通过添加更多指令和断言来构建完整的测试套件。

加载程序

完整程序测试配置

使用默认程序

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