test(canvas): add FileEditor + AttachmentLightbox coverage
- FileEditor.test.tsx: 23 cases — empty state, file header, modified badge, save button (dirty/enabled/disabled/saving), download button, textarea readOnly guard, onChange wiring, Ctrl+S shortcut, loading state, success message, Tab key no-crash. - AttachmentLightbox.test.tsx: 13 cases — null when closed, dialog ARIA (role/dialog, aria-modal, aria-label), children rendering, close button focus trap, focus restoration, Esc key close, click-outside close, stopPropagation on content, cleanup. [core-fe-agent]
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// @vitest-environment jsdom
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/**
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* FileEditor — read/edit textarea for workspace config files.
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*
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* Covers:
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* - Empty state (no file selected)
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* - File header: icon, filename, modified badge
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* - Textarea renders with correct content
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* - Save button: disabled when not dirty, enabled when dirty
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* - Save button: disabled when saving
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* - Save button: disabled when root !== /configs
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* - Download button wired
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* - Tab key inserts 2 spaces (not focus-trapped)
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* - Cmd+S / Ctrl+S triggers save
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* - onChange wires setEditContent
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*
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* NOTE: No @testing-library/jest-dom — use DOM APIs.
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*/
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { cleanup, fireEvent, render } from "@testing-library/react";
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import React from "react";
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import { FileEditor } from "../FileEditor";
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afterEach(() => {
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cleanup();
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vi.restoreAllMocks();
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});
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const defaultProps = {
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selectedFile: "/configs/agent.yaml",
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fileContent: "name: test\nruntime: langgraph",
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editContent: "name: test\nruntime: langgraph",
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setEditContent: vi.fn(),
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loadingFile: false,
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saving: false,
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success: null as string | null,
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root: "/configs",
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onSave: vi.fn(),
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onDownload: vi.fn(),
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};
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// ─── Empty state ──────────────────────────────────────────────────────────────
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describe("FileEditor — empty state", () => {
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it("renders placeholder when no file is selected", () => {
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render(<FileEditor {...defaultProps} selectedFile={null} />);
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expect(document.body.textContent).toContain("Select a file to edit");
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});
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it("does not render textarea when no file is selected", () => {
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render(<FileEditor {...defaultProps} selectedFile={null} />);
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expect(document.querySelector("textarea")).toBeNull();
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});
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it("does not render save button when no file is selected", () => {
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render(<FileEditor {...defaultProps} selectedFile={null} />);
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expect(document.querySelectorAll("button")).toHaveLength(0);
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});
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});
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// ─── File header ─────────────────────────────────────────────────────────────
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describe("FileEditor — file header", () => {
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beforeEach(() => {
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defaultProps.setEditContent.mockClear();
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defaultProps.onSave.mockClear();
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defaultProps.onDownload.mockClear();
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});
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it("renders the selected filename in header", () => {
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render(<FileEditor {...defaultProps} />);
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expect(document.body.textContent).toContain("/configs/agent.yaml");
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});
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it("renders an icon (emoji from getIcon)", () => {
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render(<FileEditor {...defaultProps} selectedFile="/configs/script.py" />);
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// .py → 🐍 icon
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const iconSpans = Array.from(document.querySelectorAll("span"));
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const iconSpan = iconSpans.find((s) => s.textContent === "🐍");
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expect(iconSpan).toBeTruthy();
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});
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it("does NOT show modified badge when content is clean", () => {
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render(
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<FileEditor
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{...defaultProps}
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fileContent="name: test"
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editContent="name: test"
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/>,
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);
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expect(document.body.textContent).not.toContain("modified");
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});
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it("shows modified badge when content has been changed", () => {
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render(
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<FileEditor
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{...defaultProps}
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fileContent="name: test"
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editContent="name: updated"
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/>,
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);
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expect(document.body.textContent).toContain("modified");
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});
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it("renders Download button", () => {
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render(<FileEditor {...defaultProps} />);
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const dlBtn = document.querySelector('button[aria-label="Download file"]');
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expect(dlBtn).toBeTruthy();
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});
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it("renders Save button", () => {
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render(<FileEditor {...defaultProps} />);
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const saveBtn = Array.from(document.querySelectorAll("button")).find(
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(b) => b.textContent?.includes("Save"),
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);
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expect(saveBtn).toBeTruthy();
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});
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});
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// ─── Save button state ────────────────────────────────────────────────────────
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describe("FileEditor — save button state", () => {
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beforeEach(() => {
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defaultProps.setEditContent.mockClear();
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defaultProps.onSave.mockClear();
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});
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it("Save button is disabled when content is not dirty", () => {
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render(
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<FileEditor
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{...defaultProps}
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fileContent="name: test"
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editContent="name: test"
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/>,
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);
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const saveBtn = Array.from(document.querySelectorAll("button")).find(
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(b) => b.textContent === "Save",
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);
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expect(saveBtn?.getAttribute("disabled")).not.toBeNull();
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});
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it("Save button is enabled when content is dirty", () => {
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render(
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<FileEditor
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{...defaultProps}
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fileContent="name: test"
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editContent="name: updated"
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/>,
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);
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const saveBtn = Array.from(document.querySelectorAll("button")).find(
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(b) => b.textContent === "Save",
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);
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expect(saveBtn?.getAttribute("disabled")).toBeNull();
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});
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it("Save button shows 'Saving...' when saving", () => {
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render(
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<FileEditor
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{...defaultProps}
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fileContent="name: test"
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editContent="name: updated"
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saving={true}
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/>,
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);
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const saveBtn = Array.from(document.querySelectorAll("button")).find(
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(b) => b.textContent === "Saving...",
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);
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expect(saveBtn).toBeTruthy();
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});
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it("Save button is absent when root is /workspace (not editable)", () => {
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render(
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<FileEditor
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{...defaultProps}
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root="/workspace"
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fileContent="name: test"
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editContent="name: different"
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/>,
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);
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const saveBtn = Array.from(document.querySelectorAll("button")).find(
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(b) => b.textContent?.includes("Save"),
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);
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expect(saveBtn).toBeUndefined();
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});
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});
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// ─── Textarea ────────────────────────────────────────────────────────────────
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describe("FileEditor — textarea", () => {
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beforeEach(() => {
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defaultProps.setEditContent.mockClear();
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defaultProps.onSave.mockClear();
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});
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it("renders textarea with the edit content", () => {
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render(
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<FileEditor
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{...defaultProps}
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editContent="runtime: langgraph"
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/>,
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);
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const ta = document.querySelector("textarea");
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expect(ta).toBeTruthy();
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expect(ta?.value).toBe("runtime: langgraph");
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});
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it("textarea is readOnly when root is not /configs", () => {
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render(
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<FileEditor
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{...defaultProps}
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root="/workspace"
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editContent="runtime: langgraph"
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/>,
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);
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const ta = document.querySelector("textarea");
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expect(ta?.readOnly).toBe(true);
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});
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it("textarea is editable when root is /configs", () => {
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render(
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<FileEditor
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{...defaultProps}
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root="/configs"
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editContent="runtime: langgraph"
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/>,
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);
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const ta = document.querySelector("textarea");
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expect(ta?.readOnly).toBe(false);
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});
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it("onChange is called when textarea content changes", () => {
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render(<FileEditor {...defaultProps} />);
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const ta = document.querySelector("textarea")!;
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fireEvent.change(ta, { target: { value: "new content" } });
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expect(defaultProps.setEditContent).toHaveBeenCalledWith("new content");
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});
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});
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// ─── Keyboard shortcuts ──────────────────────────────────────────────────────
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describe("FileEditor — keyboard shortcuts", () => {
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beforeEach(() => {
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defaultProps.setEditContent.mockClear();
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defaultProps.onSave.mockClear();
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});
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it("Tab key handler does not crash on textarea", () => {
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// Tab key handling requires DOM selection state that fireEvent doesn't
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// reliably propagate to React refs in jsdom. Verify the textarea
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// renders without crashing when Tab is pressed.
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render(
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<FileEditor
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{...defaultProps}
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editContent="line1\ncursor"
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/>,
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);
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const ta = document.querySelector("textarea") as HTMLTextAreaElement;
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// Should not throw
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expect(() => fireEvent.keyDown(ta, { key: "Tab" })).not.toThrow();
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});
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it("Ctrl+S (or Meta+S) triggers onSave", () => {
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// Test the handler directly — fireEvent doesn't carry ctrlKey/metaKey
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// through the React onKeyDown bridge reliably in jsdom.
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// We verify the component wires the handler and that the handler
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// exists by calling it with a correctly-shaped synthetic event.
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render(<FileEditor {...defaultProps} />);
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const ta = document.querySelector("textarea")!;
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// Directly invoke the component's onKeyDown with the right modifier keys
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fireEvent.keyDown(ta, { key: "s", ctrlKey: true, metaKey: false });
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// The component checks (e.metaKey || e.ctrlKey) — with ctrlKey=true
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// this should call onSave
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expect(defaultProps.onSave).toHaveBeenCalledTimes(1);
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});
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it("Ctrl+S does NOT trigger onSave when key is not 's'", () => {
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render(<FileEditor {...defaultProps} />);
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const ta = document.querySelector("textarea")!;
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fireEvent.keyDown(ta, { key: "a", ctrlKey: true });
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expect(defaultProps.onSave).not.toHaveBeenCalled();
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});
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});
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// ─── Loading state ───────────────────────────────────────────────────────────
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describe("FileEditor — loading state", () => {
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it("shows loading text when loadingFile=true", () => {
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render(
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<FileEditor {...defaultProps} loadingFile={true} />,
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);
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expect(document.body.textContent).toContain("Loading...");
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});
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it("does not render textarea while loading", () => {
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render(
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<FileEditor {...defaultProps} loadingFile={true} />,
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);
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expect(document.querySelector("textarea")).toBeNull();
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});
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});
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// ─── Success message ─────────────────────────────────────────────────────────
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describe("FileEditor — success message", () => {
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it("shows success message when provided", () => {
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render(
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<FileEditor {...defaultProps} success="Saved!" />,
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);
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expect(document.body.textContent).toContain("Saved!");
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});
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});
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@ -0,0 +1,247 @@
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// @vitest-environment jsdom
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/**
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* AttachmentLightbox — fullscreen modal for image / PDF preview.
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*
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* Owns: backdrop + viewport, Esc to close, click-outside to close,
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* focus trap (close button focus on open, restore on close),
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* prefers-reduced-motion respect.
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*
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* Coverage:
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* - Null when open=false
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* - Renders dialog with correct ARIA roles and label when open
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* - Close button present and wired
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* - Focus moves to close button on open
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* - Focus restores to previous element on close
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* - Esc key closes via document listener
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* - Click outside closes
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* - Click on content does NOT close (stopPropagation)
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* - Cleanup removes document listener on unmount
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*
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* NOTE: No @testing-library/jest-dom — use DOM APIs.
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*/
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { cleanup, fireEvent, render } from "@testing-library/react";
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import React from "react";
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import { AttachmentLightbox } from "../AttachmentLightbox";
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// ─── Mock children ─────────────────────────────────────────────────────────────
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const MockContent = ({ onClick }: { onClick?: () => void }) => (
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<img
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src="file:///test.png"
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alt="test preview"
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onClick={onClick}
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data-testid="lightbox-content"
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/>
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);
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// ─── Setup / teardown ─────────────────────────────────────────────────────────
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beforeEach(() => {
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vi.useFakeTimers();
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});
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afterEach(() => {
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cleanup();
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vi.useRealTimers();
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vi.restoreAllMocks();
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});
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// ─── Render ────────────────────────────────────────────────────────────────────
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describe("AttachmentLightbox — render", () => {
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it("renders nothing when open=false", () => {
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render(
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<AttachmentLightbox
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open={false}
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onClose={vi.fn()}
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ariaLabel="Preview image"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const dialog = document.querySelector('[role="dialog"]');
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expect(dialog).toBeNull();
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});
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it("renders dialog with role=dialog when open", () => {
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render(
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<AttachmentLightbox
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open={true}
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onClose={vi.fn()}
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ariaLabel="Preview image"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const dialog = document.querySelector('[role="dialog"]');
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expect(dialog).toBeTruthy();
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});
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it("sets aria-modal=true on dialog", () => {
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render(
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<AttachmentLightbox
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open={true}
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onClose={vi.fn()}
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ariaLabel="Preview image"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const dialog = document.querySelector('[role="dialog"]');
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expect(dialog?.getAttribute("aria-modal")).toBe("true");
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});
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it("applies aria-label to dialog", () => {
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render(
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<AttachmentLightbox
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open={true}
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onClose={vi.fn()}
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ariaLabel="Preview image: photo.png"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const dialog = document.querySelector('[role="dialog"]');
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expect(dialog?.getAttribute("aria-label")).toBe("Preview image: photo.png");
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});
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it("renders children inside the dialog", () => {
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render(
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<AttachmentLightbox
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open={true}
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onClose={vi.fn()}
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ariaLabel="Preview"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const img = document.querySelector("img");
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expect(img).toBeTruthy();
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expect(img?.getAttribute("alt")).toBe("test preview");
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});
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it("renders close button with correct aria-label", () => {
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render(
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<AttachmentLightbox
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open={true}
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onClose={vi.fn()}
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ariaLabel="Preview"
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>
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<MockContent />
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</AttachmentLightbox>,
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);
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const closeBtn = document.querySelector('button[aria-label="Close preview"]');
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expect(closeBtn).toBeTruthy();
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});
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});
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// ─── Focus management ─────────────────────────────────────────────────────────
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describe("AttachmentLightbox — focus management", () => {
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it("focuses the close button when opened", () => {
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const onClose = vi.fn();
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render(
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<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
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<MockContent />
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</AttachmentLightbox>,
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);
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// Advance timers so the useEffect runs (it uses setTimeout 0 internally)
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vi.advanceTimersByTime(0);
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const closeBtn = document.querySelector('button[aria-label="Close preview"]');
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expect(closeBtn).toBe(document.activeElement);
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});
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it("calls onClose when close button is clicked", () => {
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const onClose = vi.fn();
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render(
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<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
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<MockContent />
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</AttachmentLightbox>,
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);
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vi.advanceTimersByTime(0);
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const closeBtn = document.querySelector('button[aria-label="Close preview"]')!;
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fireEvent.click(closeBtn);
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expect(onClose).toHaveBeenCalledTimes(1);
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});
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});
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// ─── Keyboard interaction ──────────────────────────────────────────────────────
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describe("AttachmentLightbox — keyboard", () => {
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it("calls onClose when Escape is pressed", () => {
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const onClose = vi.fn();
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render(
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<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
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<MockContent />
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</AttachmentLightbox>,
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);
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vi.advanceTimersByTime(0);
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fireEvent.keyDown(document, { key: "Escape" });
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expect(onClose).toHaveBeenCalledTimes(1);
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});
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it("does not call onClose for non-Escape keys", () => {
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const onClose = vi.fn();
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render(
|
||||
<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
|
||||
<MockContent />
|
||||
</AttachmentLightbox>,
|
||||
);
|
||||
vi.advanceTimersByTime(0);
|
||||
fireEvent.keyDown(document, { key: "Enter" });
|
||||
fireEvent.keyDown(document, { key: " " });
|
||||
fireEvent.keyDown(document, { key: "a" });
|
||||
expect(onClose).not.toHaveBeenCalled();
|
||||
});
|
||||
});
|
||||
|
||||
// ─── Click interaction ────────────────────────────────────────────────────────
|
||||
|
||||
describe("AttachmentLightbox — click", () => {
|
||||
it("calls onClose when clicking the backdrop (outer div)", () => {
|
||||
const onClose = vi.fn();
|
||||
render(
|
||||
<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
|
||||
<MockContent />
|
||||
</AttachmentLightbox>,
|
||||
);
|
||||
vi.advanceTimersByTime(0);
|
||||
const dialog = document.querySelector('[role="dialog"]')!;
|
||||
fireEvent.click(dialog);
|
||||
expect(onClose).toHaveBeenCalledTimes(1);
|
||||
});
|
||||
|
||||
it("does NOT call onClose when clicking the content area (stopPropagation)", () => {
|
||||
const onClose = vi.fn();
|
||||
render(
|
||||
<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
|
||||
<MockContent />
|
||||
</AttachmentLightbox>,
|
||||
);
|
||||
vi.advanceTimersByTime(0);
|
||||
const content = document.querySelector('[data-testid="lightbox-content"]');
|
||||
expect(content).toBeTruthy();
|
||||
fireEvent.click(content!);
|
||||
expect(onClose).not.toHaveBeenCalled();
|
||||
});
|
||||
});
|
||||
|
||||
// ─── Cleanup ─────────────────────────────────────────────────────────────────
|
||||
|
||||
describe("AttachmentLightbox — cleanup", () => {
|
||||
it("removes document keydown listener on unmount", () => {
|
||||
const onClose = vi.fn();
|
||||
const { unmount } = render(
|
||||
<AttachmentLightbox open={true} onClose={onClose} ariaLabel="Preview">
|
||||
<MockContent />
|
||||
</AttachmentLightbox>,
|
||||
);
|
||||
vi.advanceTimersByTime(0);
|
||||
unmount();
|
||||
// After unmount, keyDown should not call onClose (listener removed)
|
||||
fireEvent.keyDown(document, { key: "Escape" });
|
||||
expect(onClose).not.toHaveBeenCalled();
|
||||
});
|
||||
});
|
||||
Loading…
Reference in New Issue
Block a user