test(HAI-029): add tests for runTaskShow output

packages/cli/src/commands/task.test.ts

@@ -0,0 +1,94 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
+
+// Mock @hai/core before importing the module under test
+vi.mock("@hai/core", () => {
+  const COLUMNS = ["triage", "specified", "in-progress", "review", "done"];
+  const COLUMN_LABELS: Record<string, string> = {
+    triage: "Triage",
+    specified: "Specified",
+    "in-progress": "In Progress",
+    review: "Review",
+    done: "Done",
+  };
+
+  return {
+    TaskStore: vi.fn(),
+    COLUMNS,
+    COLUMN_LABELS,
+  };
+});
+
+// Mock @hai/engine
+vi.mock("@hai/engine", () => ({ aiMergeTask: vi.fn() }));
+
+import { TaskStore } from "@hai/core";
+import { runTaskShow } from "./task.js";
+
+function makeTask(overrides: Record<string, unknown> = {}) {
+  return {
+    id: "HAI-001",
+    description: "A short description",
+    column: "triage",
+    dependencies: [],
+    steps: [],
+    currentStep: 0,
+    log: [],
+    createdAt: new Date().toISOString(),
+    updatedAt: new Date().toISOString(),
+    ...overrides,
+  };
+}
+
+describe("runTaskShow", () => {
+  let logSpy: ReturnType<typeof vi.spyOn>;
+
+  beforeEach(() => {
+    logSpy = vi.spyOn(console, "log").mockImplementation(() => {});
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it("displays the full description without truncation when no title", async () => {
+    const longDesc = "A".repeat(120); // well over 60 chars
+    const task = makeTask({ description: longDesc });
+
+    (TaskStore as unknown as ReturnType<typeof vi.fn>).mockImplementation(() => ({
+      init: vi.fn(),
+      getTask: vi.fn().mockResolvedValue(task),
+    }));
+
+    await runTaskShow("HAI-001");
+
+    const headerLine = logSpy.mock.calls.find(
+      (call) => typeof call[0] === "string" && call[0].includes("HAI-001:")
+    );
+    expect(headerLine).toBeDefined();
+    expect(headerLine![0]).toContain(longDesc);
+    // Ensure no truncation happened
+    expect(headerLine![0]).not.toContain(longDesc.slice(0, 60) + "…");
+    expect(headerLine![0].length).toBeGreaterThan(60 + "  HAI-001: ".length);
+  });
+
+  it("displays the title when present instead of description", async () => {
+    const task = makeTask({
+      title: "My Task Title",
+      description: "This is the full description that should not appear in the header",
+    });
+
+    (TaskStore as unknown as ReturnType<typeof vi.fn>).mockImplementation(() => ({
+      init: vi.fn(),
+      getTask: vi.fn().mockResolvedValue(task),
+    }));
+
+    await runTaskShow("HAI-001");
+
+    const headerLine = logSpy.mock.calls.find(
+      (call) => typeof call[0] === "string" && call[0].includes("HAI-001:")
+    );
+    expect(headerLine).toBeDefined();
+    expect(headerLine![0]).toContain("My Task Title");
+    expect(headerLine![0]).not.toContain("This is the full description");
+  });
+});