first commit

scripts/mini-preview.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it, vi } from "vitest";
+
+describe("mini preview terminal qrcode redraw", async () => {
+  const { normalizeRetryCount, renderTerminalQrcodeWithRetry } = await import("./mini-preview.mjs");
+
+  it("在第一次失败后会自动重画一次", async () => {
+    const generateTerminalQrcode = vi
+      .fn<(_: string) => Promise<string>>()
+      .mockRejectedValueOnce(new Error("decode failed"))
+      .mockResolvedValueOnce("terminal-qrcode");
+    const onRetry = vi.fn();
+    const onRecovered = vi.fn();
+
+    const result = await renderTerminalQrcodeWithRetry({
+      qrcodeBase64: "demo",
+      generateTerminalQrcode,
+      maxRetries: 1,
+      waitMs: 0,
+      onRetry,
+      onRecovered
+    });
+
+    expect(result).toBe("terminal-qrcode");
+    expect(generateTerminalQrcode).toHaveBeenCalledTimes(2);
+    expect(onRetry).toHaveBeenCalledTimes(1);
+    expect(onRecovered).toHaveBeenCalledWith({ attempt: 1, maxRetries: 1 });
+  });
+
+  it("超过重画次数后会抛出最后一次错误", async () => {
+    const finalError = new Error("still failed");
+    const generateTerminalQrcode = vi.fn<(_: string) => Promise<string>>().mockRejectedValue(finalError);
+
+    await expect(
+      renderTerminalQrcodeWithRetry({
+        qrcodeBase64: "demo",
+        generateTerminalQrcode,
+        maxRetries: 1,
+        waitMs: 0
+      })
+    ).rejects.toThrow("still failed");
+    expect(generateTerminalQrcode).toHaveBeenCalledTimes(2);
+  });
+
+  it("重画次数会被归一化为非负整数", () => {
+    expect(normalizeRetryCount(undefined)).toBe(1);
+    expect(normalizeRetryCount("3.9")).toBe(3);
+    expect(normalizeRetryCount("-1")).toBe(0);
+    expect(normalizeRetryCount("bad", 2)).toBe(2);
+  });
+});