feat: add initial situation graph orchestration

2026-08-02 06:52:26 +01:00
parent 79ea2f6824
commit 3c1362d8a1
4 changed files with 458 additions and 0 deletions
@@ -0,0 +1,114 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const mockStartCase = vi.fn();
+
+vi.mock("@/lib/graph/orchestrator.js", () => ({
+  startCase: (...args) => mockStartCase(...args),
+}));
+
+describe("app/api/cases/start route", () => {
+  beforeEach(() => {
+    vi.resetModules();
+    vi.clearAllMocks();
+  });
+
+  it("delegates request body to the orchestrator", async () => {
+    mockStartCase.mockResolvedValue({
+      success: true,
+      situationGraph: { nodes: [{ id: "n1" }], edges: [] },
+      selectedQuestion: null,
+      diagnostics: {},
+    });
+
+    const { POST } = await import("@/app/api/cases/start/route.js");
+    const request = new Request("http://localhost/api/cases/start", {
+      method: "POST",
+      body: JSON.stringify({ scenario: "Scenario text" }),
+      headers: { "content-type": "application/json" },
+    });
+
+    await POST(request);
+
+    expect(mockStartCase).toHaveBeenCalledWith({ scenario: "Scenario text" });
+  });
+
+  it("returns 200 on success", async () => {
+    mockStartCase.mockResolvedValue({
+      success: true,
+      situationGraph: { nodes: [{ id: "n1" }], edges: [] },
+      selectedQuestion: null,
+      diagnostics: {},
+    });
+
+    const { POST } = await import("@/app/api/cases/start/route.js");
+    const response = await POST(
+      new Request("http://localhost/api/cases/start", {
+        method: "POST",
+        body: JSON.stringify({ scenario: "Scenario text" }),
+        headers: { "content-type": "application/json" },
+      }),
+    );
+
+    expect(response.status).toBe(200);
+  });
+
+  it("returns 400 for invalid request input", async () => {
+    mockStartCase.mockResolvedValue({
+      success: false,
+      error: "Invalid start-case request",
+      validationErrors: [{ message: "Required" }],
+      statusCode: 400,
+    });
+
+    const { POST } = await import("@/app/api/cases/start/route.js");
+    const response = await POST(
+      new Request("http://localhost/api/cases/start", {
+        method: "POST",
+        body: JSON.stringify({}),
+        headers: { "content-type": "application/json" },
+      }),
+    );
+
+    expect(response.status).toBe(400);
+    await expect(response.json()).resolves.toMatchObject({
+      success: false,
+      error: "Invalid start-case request",
+    });
+  });
+
+  it("returns provider/internal failures as 5xx without stack traces", async () => {
+    mockStartCase.mockResolvedValue({
+      success: false,
+      error: "Provider unavailable",
+      diagnostics: { modelName: "llama3" },
+      statusCode: 502,
+    });
+
+    const { POST } = await import("@/app/api/cases/start/route.js");
+    const response = await POST(
+      new Request("http://localhost/api/cases/start", {
+        method: "POST",
+        body: JSON.stringify({ scenario: "Scenario text" }),
+        headers: { "content-type": "application/json" },
+      }),
+    );
+
+    expect(response.status).toBe(502);
+    await expect(response.json()).resolves.not.toHaveProperty("stack");
+  });
+
+  it("returns structured 500 on malformed JSON", async () => {
+    const { POST } = await import("@/app/api/cases/start/route.js");
+    const request = {
+      json: vi.fn().mockRejectedValue(new Error("Unexpected token")),
+    };
+
+    const response = await POST(request);
+
+    expect(response.status).toBe(500);
+    await expect(response.json()).resolves.toMatchObject({
+      success: false,
+      error: "Internal server error",
+    });
+  });
+});