Initial Commit

packages/foundation/data/serialize/tests/tree-shake.test.ts

@@ -0,0 +1,27 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, it } from "@suaveplan/testing/runner";
+
+describe("tree-shake: main bundle isolation", () => {
+    it("package.json has sideEffects: false", { timeout: 5000 }, () => {
+        const pkgPath = join(import.meta.dirname, "..", "package.json");
+        const pkg = JSON.parse(readFileSync(pkgPath, "utf-8")) as {
+            sideEffects?: boolean;
+        };
+        expect(pkg.sideEffects).toBe(false);
+    });
+
+    it("dist/index.js does not reference serialize-javascript", {
+        timeout: 5000,
+    }, () => {
+        const distPath = join(import.meta.dirname, "..", "dist", "index.js");
+        let content: string;
+        try {
+            content = readFileSync(distPath, "utf-8");
+        } catch {
+            // Build hasn't run yet in test-only mode — skip gracefully.
+            return;
+        }
+        expect(content).not.toContain("serialize-javascript");
+    });
+});