feat: improve proxy account setup and backup portability

tests/online-proxy-list.test.ts

@@ -0,0 +1,61 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { captureOnlineProxyList, getManagedOnlineProxyListPath, MAX_ONLINE_PROXY_LIST_BYTES, writeImportedOnlineProxyList } from "../src/main/online-proxy-list";
+
+const tempDirs: string[] = [];
+
+function tempDir(): string {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "mdd-online-proxy-"));
+  tempDirs.push(dir);
+  return dir;
+}
+
+afterEach(() => {
+  for (const dir of tempDirs.splice(0)) fs.rmSync(dir, { recursive: true, force: true });
+});
+
+describe("online proxy list", () => {
+  it("captures and restores the exact proxy-list content into the managed runtime file", () => {
+    const dir = tempDir();
+    const source = path.join(dir, "premium.txt");
+    const content = "user:secret@192.0.2.10:8080\r\nhttp://198.51.100.2:3128\r\n";
+    fs.writeFileSync(source, content, "utf8");
+
+    const captured = captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: source });
+    const target = writeImportedOnlineProxyList(dir, captured as string);
+
+    expect(target).toBe(getManagedOnlineProxyListPath(dir));
+    expect(fs.readFileSync(target, "utf8")).toBe(content);
+  });
+
+  it("replaces a previously imported managed list", () => {
+    const dir = tempDir();
+    const first = writeImportedOnlineProxyList(dir, "192.0.2.1:8080\n");
+    const second = writeImportedOnlineProxyList(dir, "198.51.100.1:3128\n");
+
+    expect(second).toBe(first);
+    expect(fs.readFileSync(second, "utf8")).toBe("198.51.100.1:3128\n");
+  });
+
+  it("rejects missing, unreadable, empty, invalid and oversized configured lists", () => {
+    const dir = tempDir();
+    const empty = path.join(dir, "empty.txt");
+    const invalid = path.join(dir, "invalid.txt");
+    const oversized = path.join(dir, "oversized.txt");
+    fs.writeFileSync(empty, "", "utf8");
+    fs.writeFileSync(invalid, "not a proxy\n", "utf8");
+    fs.writeFileSync(oversized, Buffer.alloc(MAX_ONLINE_PROXY_LIST_BYTES + 1, 120));
+
+    expect(() => captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: "" })).toThrow(/keine Proxy-Liste/i);
+    expect(() => captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: path.join(dir, "missing.txt") })).toThrow(/nicht gelesen/i);
+    expect(() => captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: empty })).toThrow(/leer/i);
+    expect(() => captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: invalid })).toThrow(/keine gültigen/i);
+    expect(() => captureOnlineProxyList({ proxyDownloadEnabled: true, proxyListPath: oversized })).toThrow(/zu groß/i);
+  });
+
+  it("omits an unconfigured list while Proxy-only is disabled", () => {
+    expect(captureOnlineProxyList({ proxyDownloadEnabled: false, proxyListPath: "" })).toBeUndefined();
+  });
+});