From cc8a454d7efe0b8121d6b50ae16db650556bce7e Mon Sep 17 00:00:00 2001
From: dwc1997 <66739829+dwc1997@users.noreply.github.com>
Date: Wed, 1 Jul 2026 16:04:29 +0800
Subject: [PATCH] test(infra): add unit tests for SQLite user_version pragma
 helper (#98369)

* test(infra): add unit tests for SQLite user_version pragma helper

* ci: trigger re-review
---
 src/infra/sqlite-user-version.test.ts | 47 +++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/infra/sqlite-user-version.test.ts

diff --git a/src/infra/sqlite-user-version.test.ts b/src/infra/sqlite-user-version.test.ts
new file mode 100644
index 000000000000..acea767c13e0
--- /dev/null
+++ b/src/infra/sqlite-user-version.test.ts
@@ -0,0 +1,47 @@
+// Tests for SQLite user_version pragma helper.
+import { describe, expect, it } from "vitest";
+import { readSqliteUserVersion } from "./sqlite-user-version.js";
+
+describe("readSqliteUserVersion", () => {
+  it("returns 0 when row is undefined", () => {
+    const db = {
+      prepare: () => ({ get: () => undefined }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(0);
+  });
+
+  it("returns 0 when user_version is null", () => {
+    const db = {
+      prepare: () => ({ get: () => ({ user_version: null }) }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(0);
+  });
+
+  it("returns numeric user_version", () => {
+    const db = {
+      prepare: () => ({ get: () => ({ user_version: 5 }) }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(5);
+  });
+
+  it("returns 0 when user_version is 0", () => {
+    const db = {
+      prepare: () => ({ get: () => ({ user_version: 0 }) }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(0);
+  });
+
+  it("converts string user_version to number", () => {
+    const db = {
+      prepare: () => ({ get: () => ({ user_version: "3" }) }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(3);
+  });
+
+  it("returns 0 for empty object", () => {
+    const db = {
+      prepare: () => ({ get: () => ({}) }),
+    } as any;
+    expect(readSqliteUserVersion(db)).toBe(0);
+  });
+});