test: raise vitest coverage

src/auto-reply/tool-meta.test.ts

@@ -0,0 +1,83 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import {
+  createToolDebouncer,
+  formatToolAggregate,
+  formatToolPrefix,
+  shortenMeta,
+  shortenPath,
+} from "./tool-meta.js";
+
+describe("tool meta formatting", () => {
+  beforeEach(() => {
+    vi.unstubAllEnvs();
+  });
+
+  it("shortens paths under HOME", () => {
+    vi.stubEnv("HOME", "/Users/test");
+    expect(shortenPath("/Users/test")).toBe("~");
+    expect(shortenPath("/Users/test/a/b.txt")).toBe("~/a/b.txt");
+    expect(shortenPath("/opt/x")).toBe("/opt/x");
+  });
+
+  it("shortens meta strings with optional colon suffix", () => {
+    vi.stubEnv("HOME", "/Users/test");
+    expect(shortenMeta("/Users/test/a.txt")).toBe("~/a.txt");
+    expect(shortenMeta("/Users/test/a.txt:12")).toBe("~/a.txt:12");
+    expect(shortenMeta("")).toBe("");
+  });
+
+  it("formats aggregates with grouping and brace-collapse", () => {
+    vi.stubEnv("HOME", "/Users/test");
+    const out = formatToolAggregate("  fs  ", [
+      "/Users/test/dir/a.txt",
+      "/Users/test/dir/b.txt",
+      "note",
+      "a→b",
+    ]);
+    expect(out).toMatch(/^\[🛠️ fs]/);
+    expect(out).toContain("~/dir/{a.txt, b.txt}");
+    expect(out).toContain("note");
+    expect(out).toContain("a→b");
+  });
+
+  it("formats prefixes with default labels", () => {
+    vi.stubEnv("HOME", "/Users/test");
+    expect(formatToolPrefix(undefined, undefined)).toBe("[🛠️ tool]");
+    expect(formatToolPrefix("x", "/Users/test/a.txt")).toBe("[🛠️ x ~/a.txt]");
+  });
+});
+
+describe("tool meta debouncer", () => {
+  it("flushes on timer and when tool changes", () => {
+    vi.useFakeTimers();
+    try {
+      const calls: Array<{ tool: string | undefined; metas: string[] }> = [];
+      const d = createToolDebouncer((tool, metas) => {
+        calls.push({ tool, metas });
+      }, 50);
+
+      d.push("a", "/tmp/1");
+      d.push("a", "/tmp/2");
+      expect(calls).toHaveLength(0);
+
+      vi.advanceTimersByTime(60);
+      expect(calls).toHaveLength(1);
+      expect(calls[0]).toMatchObject({
+        tool: "a",
+        metas: ["/tmp/1", "/tmp/2"],
+      });
+
+      d.push("a", "x");
+      d.push("b", "y"); // tool change flushes immediately
+      expect(calls).toHaveLength(2);
+      expect(calls[1]).toMatchObject({ tool: "a", metas: ["x"] });
+
+      vi.advanceTimersByTime(60);
+      expect(calls).toHaveLength(3);
+      expect(calls[2]).toMatchObject({ tool: "b", metas: ["y"] });
+    } finally {
+      vi.useRealTimers();
+    }
+  });
+});