add unit tests for ssrf guard, version compare, and settings validation

packages/bridge/src/util/version.test.mjs

@@ -0,0 +1,31 @@
+import { describe, it, expect } from "vitest";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
+const { stripBuildMetadata, isNewer } = require("./version.js");
+
+describe("isNewer", () => {
+  it("is true when latest is strictly newer", () => {
+    expect(isNewer("0.8.4", "0.8.3")).toBe(true);
+    expect(isNewer("1.0.0", "0.9.9")).toBe(true);
+    expect(isNewer("0.9.0", "0.8.9")).toBe(true);
+  });
+
+  it("is false for older or equal, so no downgrade is prompted", () => {
+    expect(isNewer("0.8.3", "0.8.4")).toBe(false);
+    expect(isNewer("0.8.4", "0.8.4")).toBe(false);
+    expect(isNewer("0.9.9", "1.0.0")).toBe(false);
+  });
+
+  it("is false for malformed versions", () => {
+    expect(isNewer("x", "0.8.4")).toBe(false);
+    expect(isNewer("0.8", "0.8.4")).toBe(false);
+    expect(isNewer("1.x.0", "0.8.4")).toBe(false);
+  });
+
+  it("ignores build metadata, so an equal version with a build tag is not newer", () => {
+    expect(
+      isNewer(stripBuildMetadata("0.8.4"), stripBuildMetadata("0.8.4+q2fmfox")),
+    ).toBe(false);
+  });
+});