From e76b4b2cfe4630df660da066e700aa6ffd75cd37 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hartmut=20N=C3=B6renberg?= <hn@hartmut-noerenberg.com>
Date: Wed, 1 Apr 2026 00:35:28 +0200
Subject: [PATCH] test(api): cover assistant timeline project shifts

---
 ...tant-tools-timeline-project-shifts.test.ts | 131 ++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 packages/api/src/__tests__/assistant-tools-timeline-project-shifts.test.ts

diff --git a/packages/api/src/__tests__/assistant-tools-timeline-project-shifts.test.ts b/packages/api/src/__tests__/assistant-tools-timeline-project-shifts.test.ts
new file mode 100644
index 0000000..f3f50eb
--- /dev/null
+++ b/packages/api/src/__tests__/assistant-tools-timeline-project-shifts.test.ts
@@ -0,0 +1,131 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { PermissionKey, SystemRole } from "@capakraken/shared";
+
+import { createToolContext, executeTool } from "./assistant-tools-timeline-shifts-test-helpers.js";
+
+describe("assistant timeline project shift tools", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("applies timeline project shifts through the real timeline router mutation", async () => {
+    const { listAssignmentBookings } = await import("@capakraken/application");
+    vi.mocked(listAssignmentBookings).mockResolvedValueOnce([]);
+
+    const db = {
+      project: {
+        findUnique: vi.fn().mockResolvedValue({
+          id: "project_1",
+          name: "Gelddruckmaschine",
+          shortCode: "GDM",
+          status: "ACTIVE",
+          responsiblePerson: null,
+          budgetCents: 100000,
+          winProbability: 100,
+          startDate: new Date("2026-03-16"),
+          endDate: new Date("2026-03-20"),
+        }),
+        update: vi.fn().mockResolvedValue({
+          id: "project_1",
+          startDate: new Date("2026-03-23"),
+          endDate: new Date("2026-03-27"),
+        }),
+      },
+      demandRequirement: {
+        findMany: vi.fn().mockResolvedValue([]),
+      },
+      assignment: {
+        findMany: vi.fn().mockResolvedValue([]),
+      },
+      auditLog: {
+        create: vi.fn().mockResolvedValue({}),
+      },
+      $transaction: vi.fn(async (callback: (tx: unknown) => unknown) => callback(db)),
+    };
+    const ctx = createToolContext(
+      db,
+      [PermissionKey.MANAGE_ALLOCATIONS, PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS],
+      SystemRole.MANAGER,
+    );
+
+    const result = await executeTool(
+      "apply_timeline_project_shift",
+      JSON.stringify({
+        projectIdentifier: "project_1",
+        newStartDate: "2026-03-23",
+        newEndDate: "2026-03-27",
+      }),
+      ctx,
+    );
+
+    expect(result.action).toEqual({ type: "invalidate", scope: ["allocation", "timeline", "project"] });
+    expect(JSON.parse(result.content)).toEqual(
+      expect.objectContaining({
+        success: true,
+        project: expect.objectContaining({
+          id: "project_1",
+          startDate: "2026-03-23",
+          endDate: "2026-03-27",
+        }),
+        validation: expect.objectContaining({
+          valid: true,
+        }),
+      }),
+    );
+    expect(db.project.update).toHaveBeenCalledWith(
+      expect.objectContaining({
+        where: { id: "project_1" },
+      }),
+    );
+  });
+
+  it("returns a stable project-not-found error if the timeline shift target disappears mid-mutation", async () => {
+    const { listAssignmentBookings } = await import("@capakraken/application");
+    vi.mocked(listAssignmentBookings).mockResolvedValueOnce([]);
+
+    const db = {
+      project: {
+        findUnique: vi
+          .fn()
+          .mockResolvedValueOnce({
+            id: "project_1",
+            name: "Gelddruckmaschine",
+            shortCode: "GDM",
+            status: "ACTIVE",
+            responsiblePerson: null,
+            budgetCents: 100000,
+            winProbability: 100,
+            startDate: new Date("2026-03-16"),
+            endDate: new Date("2026-03-20"),
+          })
+          .mockResolvedValueOnce(null),
+      },
+      demandRequirement: {
+        findMany: vi.fn().mockResolvedValue([]),
+      },
+      assignment: {
+        findMany: vi.fn().mockResolvedValue([]),
+      },
+    };
+    const ctx = createToolContext(
+      db,
+      [PermissionKey.MANAGE_ALLOCATIONS, PermissionKey.USE_ASSISTANT_ADVANCED_TOOLS],
+      SystemRole.MANAGER,
+    );
+
+    const result = await executeTool(
+      "apply_timeline_project_shift",
+      JSON.stringify({
+        projectIdentifier: "project_1",
+        newStartDate: "2026-03-23",
+        newEndDate: "2026-03-27",
+      }),
+      ctx,
+    );
+
+    expect(result.action).toBeUndefined();
+    expect(JSON.parse(result.content)).toEqual({
+      error: "Project not found with the given criteria.",
+    });
+  });
+});