test: smoke test with cjs/esm dual package (#1644)

e2e/.gitignore

 logs
+.temp

e2e/node/smoke.e2e.ts

+import { execSync } from "node:child_process";
+import { mkdir, rm, writeFile } from "node:fs/promises";
+import { resolve } from "node:path";
+import { test } from "node:test";
+import { testRootDir } from "./utils.js";
+
+await test("cjs/esm dual module check", async (t) => {
+  const esmImports = `import fs from 'node:fs/promises'
+import { Document, MetadataMode, VectorStoreIndex } from 'llamaindex'
+import { OpenAIEmbedding } from '@llamaindex/openai'
+import { Settings } from '@llamaindex/core/global'`;
+  const cjsRequire = `const fs = require('fs').promises
+const { Document, MetadataMode, VectorStoreIndex } = require('llamaindex')
+const { OpenAIEmbedding } = require('@llamaindex/openai')
+const { Settings } = require('@llamaindex/core/global')`;
+  const mainCode = `
+async function main() {
+  Settings.embedModel = new OpenAIEmbedding({
+    model: 'text-embedding-3-small',
+    apiKey: '${process.env.OPENAI_API_KEY}',
+  })
+  const model = Settings.embedModel
+  if (model == null) {
+    process.exit(-1)
+  }
+}
+main().catch(console.error)`;
+  t.before(async () => {
+    await mkdir(resolve(testRootDir, ".temp"), {
+      recursive: true,
+      mode: 0o755,
+    });
+  });
+
+  t.after(async () => {
+    await rm(resolve(testRootDir, ".temp"), {
+      recursive: true,
+      force: true,
+    });
+  });
+
+  await t.test("cjs", async () => {
+    const cjsCode = `${cjsRequire}\n${mainCode}`;
+    const filePath = resolve(
+      testRootDir,
+      ".temp",
+      `${crypto.randomUUID()}.cjs`,
+    );
+    await writeFile(filePath, cjsCode, "utf-8");
+
+    execSync(`${process.argv[0]} ${filePath}`, {
+      cwd: process.cwd(),
+    });
+  });
+
+  await t.test("esm", async () => {
+    const esmCode = `${esmImports}\n${mainCode}`;
+    const filePath = resolve(
+      testRootDir,
+      ".temp",
+      `${crypto.randomUUID()}.mjs`,
+    );
+    await writeFile(filePath, esmCode, "utf-8");
+
+    execSync(`${process.argv[0]} ${filePath}`, {
+      cwd: process.cwd(),
+    });
+  });
+
+  const specialConditions = ["edge-light", "workerd", "react-server"];
+  for (const condition of specialConditions) {
+    await t.test(condition, async () => {
+      const esmCode = `${esmImports}\n${mainCode}`;
+      const filePath = resolve(
+        testRootDir,
+        ".temp",
+        `${crypto.randomUUID()}.mjs`,
+      );
+      await writeFile(filePath, esmCode, "utf-8");
+
+      execSync(`${process.argv[0]} ${filePath} -C ${condition}`, {
+        cwd: process.cwd(),
+      });
+    });
+  }
+});