test(canvas): fix ApprovalBanner spy-chain + add EmptyState coverage
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Fix test isolation in ApprovalBanner: replace vi.spyOn per-test with
module-level vi.hoisted + vi.mock so the mock is stable across tests.

Add EmptyState.test.tsx covering:
- Loading/empty/template-fetched states
- Template grid rendering (name, tier badge, model label)
- Deploy-on-click
- Create blank workspace (POST, loading, error, retry, canvas-store wiring)
- Rendering (welcome, tips, OrgTemplatesSection)

Fix vi.hoisted pattern for multiple vi.mock calls: use a single
vi.hoisted() returning all mock fns as m.<field>, then reference m.<field>
inside each vi.mock factory. This avoids "Cannot access before
initialization" errors that arise when vi.hoisted factories are called
before module-level vi.mock hoisting completes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Molecule AI · fullstack-engineer 2026-05-11 20:34:52 +00:00 committed by Molecule AI Core-DevOps
parent 04a5aae9c1
commit 4bc1ea6987
2 changed files with 335 additions and 35 deletions

View File

@ -2,8 +2,9 @@
/**
* Tests for ApprovalBanner component.
*
* Covers: renders nothing when no approvals, polls /approvals/pending,
* shows approval cards, approve/deny decisions, toast notifications.
* Uses vi.hoisted + vi.mock for stable module-level API mocks that survive
* vi.resetModules() cleanup. BeforeEach uses mockReset + mockResolvedValue
* so each test gets a clean slate.
*/
import React from "react";
import { render, screen, fireEvent, cleanup, waitFor, act } from "@testing-library/react";
@ -12,8 +13,19 @@ import { ApprovalBanner } from "../ApprovalBanner";
import { showToast } from "@/components/Toaster";
import { api } from "@/lib/api";
// ─── Module-level mocks ───────────────────────────────────────────────────────
// vi.hoisted captures stable references BEFORE hoisting so they are accessible
// in the test body after vi.mock registers.
const _mockGet = vi.hoisted<typeof api.get>(() => vi.fn<() => Promise<unknown[]>>());
const _mockPost = vi.hoisted<typeof api.post>(() => vi.fn<() => Promise<unknown>>());
const _mockToast = vi.hoisted<typeof showToast>(() => vi.fn());
vi.mock("@/lib/api", () => ({
api: { get: _mockGet, post: _mockPost },
}));
vi.mock("@/components/Toaster", () => ({
showToast: vi.fn(),
showToast: _mockToast,
}));
afterEach(cleanup);
@ -38,11 +50,25 @@ const pendingApproval = (id = "a1", workspaceId = "ws-1"): {
created_at: "2026-05-10T10:00:00Z",
});
// ─── Cleanup ─────────────────────────────────────────────────────────────────
beforeEach(() => {
_mockGet.mockReset();
_mockGet.mockResolvedValue([] as unknown[]);
_mockPost.mockReset();
_mockPost.mockResolvedValue({} as unknown);
_mockToast.mockClear();
});
afterEach(() => {
cleanup();
});
// ─── Tests ────────────────────────────────────────────────────────────────────
describe("ApprovalBanner — empty state", () => {
it("renders nothing when there are no pending approvals", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([]);
_mockGet.mockResolvedValueOnce([] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -51,7 +77,7 @@ describe("ApprovalBanner — empty state", () => {
});
it("does not render any approve/deny buttons when list is empty", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([]);
_mockGet.mockResolvedValueOnce([] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -63,10 +89,10 @@ describe("ApprovalBanner — empty state", () => {
describe("ApprovalBanner — renders approval cards", () => {
it("renders an alert card for each pending approval", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([
_mockGet.mockResolvedValueOnce([
pendingApproval("a1"),
pendingApproval("a2", "ws-2"),
]);
] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -76,7 +102,7 @@ describe("ApprovalBanner — renders approval cards", () => {
});
it("displays the workspace name and action text", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -86,7 +112,7 @@ describe("ApprovalBanner — renders approval cards", () => {
});
it("displays the reason when present", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -97,7 +123,7 @@ describe("ApprovalBanner — renders approval cards", () => {
it("omits the reason div when reason is null", async () => {
const approval = pendingApproval("a1");
approval.reason = null;
vi.spyOn(api, "get").mockResolvedValueOnce([approval]);
_mockGet.mockResolvedValueOnce([approval] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -106,7 +132,7 @@ describe("ApprovalBanner — renders approval cards", () => {
});
it("renders both Approve and Deny buttons per card", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -116,7 +142,7 @@ describe("ApprovalBanner — renders approval cards", () => {
});
it("has aria-live=assertive on the alert container", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -138,7 +164,7 @@ describe("ApprovalBanner — polling", () => {
});
it("clears the polling interval on unmount", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
const { unmount } = render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));
@ -151,8 +177,8 @@ describe("ApprovalBanner — polling", () => {
describe("ApprovalBanner — decisions", () => {
it("calls POST /workspaces/:id/approvals/:id/decide on Approve click", async () => {
const approval = pendingApproval("a1", "ws-1");
vi.spyOn(api, "get").mockResolvedValueOnce([approval]);
const postSpy = vi.spyOn(api, "post").mockResolvedValueOnce(undefined);
_mockGet.mockResolvedValueOnce([approval] as unknown[]);
_mockPost.mockResolvedValueOnce({} as unknown);
render(<ApprovalBanner />);
await act(async () => {
@ -162,17 +188,17 @@ describe("ApprovalBanner — decisions", () => {
fireEvent.click(screen.getByRole("button", { name: /approve/i }));
await waitFor(() => {
expect(postSpy).toHaveBeenCalledWith(
expect(_mockPost).toHaveBeenCalledWith(
"/workspaces/ws-1/approvals/a1/decide",
{ decision: "approved", decided_by: "human" }
{ decision: "approved", decided_by: "human" },
);
});
});
it("calls POST with decision=denied on Deny click", async () => {
const approval = pendingApproval("a1", "ws-1");
vi.spyOn(api, "get").mockResolvedValueOnce([approval]);
const postSpy = vi.spyOn(api, "post").mockResolvedValueOnce(undefined);
_mockGet.mockResolvedValueOnce([approval] as unknown[]);
_mockPost.mockResolvedValueOnce({} as unknown);
render(<ApprovalBanner />);
await act(async () => {
@ -182,17 +208,17 @@ describe("ApprovalBanner — decisions", () => {
fireEvent.click(screen.getByRole("button", { name: /deny/i }));
await waitFor(() => {
expect(postSpy).toHaveBeenCalledWith(
expect(_mockPost).toHaveBeenCalledWith(
"/workspaces/ws-1/approvals/a1/decide",
{ decision: "denied", decided_by: "human" }
{ decision: "denied", decided_by: "human" },
);
});
});
it("removes the card from state after a successful decision", async () => {
const approval = pendingApproval("a1", "ws-1");
vi.spyOn(api, "get").mockResolvedValueOnce([approval]);
vi.spyOn(api, "post").mockResolvedValueOnce(undefined);
_mockGet.mockResolvedValueOnce([approval] as unknown[]);
_mockPost.mockResolvedValueOnce({} as unknown);
render(<ApprovalBanner />);
await act(async () => {
@ -210,8 +236,8 @@ describe("ApprovalBanner — decisions", () => {
});
it("shows a success toast on approve", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
vi.spyOn(api, "post").mockResolvedValueOnce(undefined);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
_mockPost.mockResolvedValueOnce({} as unknown);
render(<ApprovalBanner />);
await act(async () => {
@ -221,13 +247,13 @@ describe("ApprovalBanner — decisions", () => {
fireEvent.click(screen.getByRole("button", { name: /approve/i }));
await waitFor(() => {
expect(showToast).toHaveBeenCalledWith("Approved", "success");
expect(_mockToast).toHaveBeenCalledWith("Approved", "success");
});
});
it("shows an info toast on deny", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
vi.spyOn(api, "post").mockResolvedValueOnce(undefined);
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
_mockPost.mockResolvedValueOnce({} as unknown);
render(<ApprovalBanner />);
await act(async () => {
@ -237,13 +263,18 @@ describe("ApprovalBanner — decisions", () => {
fireEvent.click(screen.getByRole("button", { name: /deny/i }));
await waitFor(() => {
expect(showToast).toHaveBeenCalledWith("Denied", "info");
expect(_mockToast).toHaveBeenCalledWith("Denied", "info");
});
});
it("shows an error toast when POST fails", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
vi.spyOn(api, "post").mockRejectedValueOnce(new Error("Network error"));
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
// Use mockImplementation instead of mockRejectedValueOnce so the vi.fn
// wrapper is preserved — the component's catch block needs the resolved
// promise wrapper to distinguish a rejected-from-mock vs thrown-from-code.
_mockPost.mockImplementation(
() => new Promise((_, reject) => reject(new Error("Network error"))),
);
render(<ApprovalBanner />);
await act(async () => {
@ -253,13 +284,15 @@ describe("ApprovalBanner — decisions", () => {
fireEvent.click(screen.getByRole("button", { name: /approve/i }));
await waitFor(() => {
expect(showToast).toHaveBeenCalledWith("Failed to submit decision", "error");
expect(_mockToast).toHaveBeenCalledWith("Failed to submit decision", "error");
});
});
it("keeps the card visible when the POST fails", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([pendingApproval("a1")]);
vi.spyOn(api, "post").mockRejectedValueOnce(new Error("Network error"));
_mockGet.mockResolvedValueOnce([pendingApproval("a1")] as unknown[]);
_mockPost.mockImplementation(
() => new Promise((_, reject) => reject(new Error("Network error"))),
);
render(<ApprovalBanner />);
await act(async () => {
@ -277,7 +310,7 @@ describe("ApprovalBanner — decisions", () => {
describe("ApprovalBanner — handles empty list from server", () => {
it("shows nothing when the API returns an empty array on first poll", async () => {
vi.spyOn(api, "get").mockResolvedValueOnce([]);
_mockGet.mockResolvedValueOnce([] as unknown[]);
render(<ApprovalBanner />);
await act(async () => {
await new Promise((r) => setTimeout(r, 10));

View File

@ -0,0 +1,267 @@
// @vitest-environment jsdom
/**
* Tests for EmptyState component the full-canvas welcome card on first load.
*
* Pattern: all vi.fn() refs are created by a SINGLE vi.hoisted() call,
* returned as a named-const object. Individual vi.mock factories then
* import that object and pull out the fields they need. This avoids
* "Cannot access before initialization" errors from vi.mock hoisting.
*/
import React from "react";
import { render, screen, fireEvent, cleanup, waitFor, act } from "@testing-library/react";
import { afterEach, describe, expect, it, vi, beforeEach } from "vitest";
import { EmptyState } from "../EmptyState";
// ─── Module-level mocks ───────────────────────────────────────────────────────
// vi.hoisted is evaluated after module-level vars are declared, so these
// refs are stable and accessible inside vi.mock factories (which are
// hoisted above everything). We return an object so a SINGLE hoisted call
// creates all mocks; each vi.mock then references m.<field>.
const m = vi.hoisted(() => {
const mockGet = vi.fn<() => Promise<unknown[]>>();
const mockPost = vi.fn<() => Promise<{ id: string }>>();
const mockCheckDeploySecrets = vi.fn<
() => Promise<{
ok: boolean;
missingKeys: string[];
providers: string[];
runtime: string;
configuredKeys: string[];
}>
>();
const mockSelectNode = vi.fn<(id: string) => void>();
const mockSetPanelTab = vi.fn<(tab: string) => void>();
const mockDeploy = vi.fn<(t: { id: string; name: string }) => Promise<void>>();
const mockUseTemplateDeploy = vi.fn(() => ({
deploy: mockDeploy,
deploying: false,
error: null,
modal: null,
}));
return {
mockGet,
mockPost,
mockCheckDeploySecrets,
mockSelectNode,
mockSetPanelTab,
mockDeploy,
mockUseTemplateDeploy,
};
});
vi.mock("@/lib/api", () => ({
api: { get: m.mockGet, post: m.mockPost },
}));
vi.mock("@/lib/deploy-preflight", () => ({
checkDeploySecrets: m.mockCheckDeploySecrets,
}));
vi.mock("@/store/canvas", () => ({
useCanvasStore: Object.assign(
// The hook returns an object with selectNode/setPanelTab;
// the component also calls useCanvasStore.getState() directly.
vi.fn(() => ({
selectNode: m.mockSelectNode,
setPanelTab: m.mockSetPanelTab,
})),
{
getState: () => ({
selectNode: m.mockSelectNode,
setPanelTab: m.mockSetPanelTab,
}),
},
),
}));
vi.mock("@/hooks/useTemplateDeploy", () => ({
useTemplateDeploy: m.mockUseTemplateDeploy,
}));
// Mock OrgTemplatesSection — tested separately.
vi.mock("../TemplatePalette", () => ({
OrgTemplatesSection: () => (
<div data-testid="org-templates-section">Org Templates</div>
),
}));
// ─── Test data ───────────────────────────────────────────────────────────────
const TEMPLATE = {
id: "molecule-dev",
name: "Molecule Dev",
tier: 2,
description: "A full-featured agent workspace for development",
runtime: "langgraph",
required_env: ["ANTHROPIC_API_KEY"],
models: [{ id: "claude-sonnet-4-20250514", required_env: ["ANTHROPIC_API_KEY"] }],
model: "claude-sonnet-4-20250514",
skill_count: 12,
};
// ─── Cleanup ─────────────────────────────────────────────────────────────────
beforeEach(() => {
m.mockGet.mockReset();
m.mockGet.mockResolvedValue([] as unknown[]);
m.mockPost.mockReset();
m.mockPost.mockResolvedValue({ id: "new-ws-123" } as unknown as { id: string });
m.mockCheckDeploySecrets.mockReset();
m.mockCheckDeploySecrets.mockResolvedValue({
ok: true,
missingKeys: [],
providers: [],
runtime: "langgraph",
configuredKeys: [],
});
m.mockSelectNode.mockReset();
m.mockSetPanelTab.mockReset();
m.mockDeploy.mockReset();
});
afterEach(() => {
cleanup();
});
// ─── Tests ────────────────────────────────────────────────────────────────────
describe("EmptyState — loading state", () => {
it("shows spinner and loading text while templates are being fetched", () => {
m.mockGet.mockImplementation(() => new Promise(() => {}));
render(<EmptyState />);
expect(screen.getByText(/loading templates/i)).toBeTruthy();
});
});
describe("EmptyState — templates fetched", () => {
it("renders template grid with name, tier badge, description, skill count", async () => {
m.mockGet.mockResolvedValueOnce([TEMPLATE] as unknown[]);
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByText("Molecule Dev")).toBeTruthy();
expect(screen.getByText("T2")).toBeTruthy();
expect(screen.getByText(/full-featured agent workspace/i)).toBeTruthy();
expect(screen.getByText(/12 skills/)).toBeTruthy();
});
it("shows model label when template declares a model", async () => {
m.mockGet.mockResolvedValueOnce([TEMPLATE] as unknown[]);
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByText(/claude-sonnet/i)).toBeTruthy();
});
it("calls deploy(template) when template button is clicked", async () => {
m.mockGet.mockResolvedValueOnce([TEMPLATE] as unknown[]);
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /molecule dev/i }));
expect(m.mockDeploy).toHaveBeenCalledWith(
expect.objectContaining({ id: "molecule-dev", name: "Molecule Dev" }),
);
});
});
describe("EmptyState — no templates", () => {
it("shows only the create-blank button when template list is empty", async () => {
// beforeEach already sets mockResolvedValue([]) as default — no override needed.
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByRole("button", { name: /\+ create blank workspace/i })).toBeTruthy();
expect(screen.queryByText(/molecule dev/i)).toBeNull();
});
it("shows only the create-blank button when template fetch fails", async () => {
m.mockGet.mockRejectedValueOnce(new Error("Network error"));
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByRole("button", { name: /\+ create blank workspace/i })).toBeTruthy();
expect(screen.queryByText(/loading templates/i)).toBeNull();
});
});
describe("EmptyState — create blank workspace", () => {
it('shows "Creating..." label while blank workspace POST is in-flight', async () => {
m.mockPost.mockImplementationOnce(() => new Promise(() => {}));
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByText("Creating...")).toBeTruthy();
// The same button is now relabeled; check it is disabled while POST is in-flight.
expect(screen.getByRole("button", { name: /creating\.\.\./i })).toHaveProperty("disabled", true);
});
it("calls POST /workspaces with correct payload on create blank", async () => {
m.mockPost.mockResolvedValueOnce({ id: "ws-new-456" } as unknown as { id: string });
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(m.mockPost).toHaveBeenCalledWith("/workspaces", {
name: "My First Agent",
canvas: { x: 200, y: 150 },
});
});
it("calls selectNode + setPanelTab(chat) after 500ms on blank create success", async () => {
m.mockPost.mockResolvedValueOnce({ id: "ws-new-789" } as unknown as { id: string });
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
// Wait for the 500ms setTimeout inside handleDeployed to fire and call
// canvas store methods. Use waitFor so we don't hard-code timing assumptions.
await waitFor(() => {
expect(m.mockSelectNode).toHaveBeenCalledWith("ws-new-789");
expect(m.mockSetPanelTab).toHaveBeenCalledWith("chat");
}, { timeout: 1000 });
});
it("shows error banner on blank create failure", async () => {
m.mockPost.mockRejectedValueOnce(new Error("Server error"));
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByRole("alert")).toBeTruthy();
expect(screen.getByText(/server error/i)).toBeTruthy();
});
it("blank workspace error clears on retry", async () => {
m.mockPost.mockRejectedValueOnce(new Error("Server error"));
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByRole("alert")).toBeTruthy();
// Retry succeeds — error clears
m.mockPost.mockResolvedValueOnce({ id: "ws-retry" } as unknown as { id: string });
fireEvent.click(screen.getByRole("button", { name: /\+ create blank workspace/i }));
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.queryByRole("alert")).toBeNull();
});
});
describe("EmptyState — rendering", () => {
it("renders the welcome heading and instructions", async () => {
// beforeEach already sets mockGet to resolve to [] — no override needed.
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByText(/deploy your first agent/i)).toBeTruthy();
expect(screen.getByText(/welcome to molecule ai/i)).toBeTruthy();
});
it("renders the tips footer", async () => {
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByText(/drag to nest workspaces/i)).toBeTruthy();
});
it("renders OrgTemplatesSection below the create-blank button", async () => {
render(<EmptyState />);
await act(async () => { await new Promise(r => setTimeout(r, 50)); });
expect(screen.getByTestId("org-templates-section")).toBeTruthy();
});
});