Improve runtime and import reliability

packages/db/src/embedded-postgres-native.test.ts

@@ -0,0 +1,43 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { ensureLinuxSharedLibraryAliases } from "./embedded-postgres-native.js";
+
+describe("embedded Postgres native runtime", () => {
+  const tempDirs: string[] = [];
+
+  afterEach(() => {
+    for (const tempDir of tempDirs.splice(0)) {
+      fs.rmSync(tempDir, { recursive: true, force: true });
+    }
+  });
+
+  it.runIf(process.platform !== "win32")("creates soname aliases for bundled patch-level shared libraries", async () => {
+    const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "paperclip-embedded-pg-libs-"));
+    tempDirs.push(tempDir);
+    fs.writeFileSync(path.join(tempDir, "libicuuc.so.60.2"), "");
+    fs.writeFileSync(path.join(tempDir, "libicui18n.so.60.2"), "");
+    fs.writeFileSync(path.join(tempDir, "README.md"), "");
+
+    const created = await ensureLinuxSharedLibraryAliases(tempDir);
+
+    expect(created.map((file) => path.basename(file)).sort()).toEqual([
+      "libicui18n.so.60",
+      "libicuuc.so.60",
+    ]);
+    expect(fs.readlinkSync(path.join(tempDir, "libicuuc.so.60"))).toBe("libicuuc.so.60.2");
+  });
+
+  it.runIf(process.platform !== "win32")("is idempotent when aliases already exist", async () => {
+    const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "paperclip-embedded-pg-libs-"));
+    tempDirs.push(tempDir);
+    fs.writeFileSync(path.join(tempDir, "libicuuc.so.60.2"), "");
+
+    await ensureLinuxSharedLibraryAliases(tempDir);
+    const second = await ensureLinuxSharedLibraryAliases(tempDir);
+
+    expect(second).toEqual([]);
+    expect(fs.readlinkSync(path.join(tempDir, "libicuuc.so.60"))).toBe("libicuuc.so.60.2");
+  });
+});