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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import * as vscode from 'vscode';
import {
RecentFilesManager,
MAX_FILES,
MAX_FILE_AGE_MINUTES,
} from './recent-files-manager.js';
vi.mock('vscode', () => ({
EventEmitter: vi.fn(() => ({
event: vi.fn(),
fire: vi.fn(),
dispose: vi.fn(),
})),
window: {
onDidChangeActiveTextEditor: vi.fn(),
},
workspace: {
onDidDeleteFiles: vi.fn(),
onDidCloseTextDocument: vi.fn(),
onDidRenameFiles: vi.fn(),
},
Uri: {
file: (path: string) => ({
fsPath: path,
}),
},
}));
describe('RecentFilesManager', () => {
let context: vscode.ExtensionContext;
beforeEach(() => {
context = {
subscriptions: [],
} as unknown as vscode.ExtensionContext;
});
afterEach(() => {
vi.restoreAllMocks();
});
it('adds a file to the list', () => {
const manager = new RecentFilesManager(context);
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
});
it('moves an existing file to the top', () => {
const manager = new RecentFilesManager(context);
const uri1 = vscode.Uri.file('/test/file1.txt');
const uri2 = vscode.Uri.file('/test/file2.txt');
manager.add(uri1);
manager.add(uri2);
manager.add(uri1);
expect(manager.recentFiles).toHaveLength(2);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
});
it('does not exceed the max number of files', () => {
const manager = new RecentFilesManager(context);
for (let i = 0; i < MAX_FILES + 5; i++) {
const uri = vscode.Uri.file(`/test/file${i}.txt`);
manager.add(uri);
}
expect(manager.recentFiles).toHaveLength(MAX_FILES);
expect(manager.recentFiles[0].filePath).toBe(
`/test/file${MAX_FILES + 4}.txt`,
);
expect(manager.recentFiles[MAX_FILES - 1].filePath).toBe(`/test/file5.txt`);
});
it('fires onDidChange when a file is added', () => {
const manager = new RecentFilesManager(context);
const spy = vi.spyOn(manager['onDidChangeEmitter'], 'fire');
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
expect(spy).toHaveBeenCalled();
});
it('removes a file when it is closed', () => {
const manager = new RecentFilesManager(context);
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
expect(manager.recentFiles).toHaveLength(1);
// Simulate closing the file
const closeHandler = vi.mocked(vscode.workspace.onDidCloseTextDocument).mock
.calls[0][0];
closeHandler({ uri } as vscode.TextDocument);
expect(manager.recentFiles).toHaveLength(0);
});
it('fires onDidChange when a file is removed', () => {
const manager = new RecentFilesManager(context);
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
const spy = vi.spyOn(manager['onDidChangeEmitter'], 'fire');
const closeHandler = vi.mocked(vscode.workspace.onDidCloseTextDocument).mock
.calls[0][0];
closeHandler({ uri } as vscode.TextDocument);
expect(spy).toHaveBeenCalled();
});
it('removes a file when it is deleted', () => {
const manager = new RecentFilesManager(context);
const uri1 = vscode.Uri.file('/test/file1.txt');
const uri2 = vscode.Uri.file('/test/file2.txt');
manager.add(uri1);
manager.add(uri2);
expect(manager.recentFiles).toHaveLength(2);
// Simulate deleting a file
const deleteHandler = vi.mocked(vscode.workspace.onDidDeleteFiles).mock
.calls[0][0];
deleteHandler({ files: [uri1] });
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('fires onDidChange when a file is deleted', () => {
const manager = new RecentFilesManager(context);
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
const spy = vi.spyOn(manager['onDidChangeEmitter'], 'fire');
const deleteHandler = vi.mocked(vscode.workspace.onDidDeleteFiles).mock
.calls[0][0];
deleteHandler({ files: [uri] });
expect(spy).toHaveBeenCalled();
});
it('removes multiple files when they are deleted', () => {
const manager = new RecentFilesManager(context);
const uri1 = vscode.Uri.file('/test/file1.txt');
const uri2 = vscode.Uri.file('/test/file2.txt');
const uri3 = vscode.Uri.file('/test/file3.txt');
manager.add(uri1);
manager.add(uri2);
manager.add(uri3);
expect(manager.recentFiles).toHaveLength(3);
// Simulate deleting multiple files
const deleteHandler = vi.mocked(vscode.workspace.onDidDeleteFiles).mock
.calls[0][0];
deleteHandler({ files: [uri1, uri3] });
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('prunes files older than the max age', () => {
vi.useFakeTimers();
const manager = new RecentFilesManager(context);
const uri1 = vscode.Uri.file('/test/file1.txt');
manager.add(uri1);
// Advance time by more than the max age
const twoMinutesMs = (MAX_FILE_AGE_MINUTES + 1) * 60 * 1000;
vi.advanceTimersByTime(twoMinutesMs);
const uri2 = vscode.Uri.file('/test/file2.txt');
manager.add(uri2);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
vi.useRealTimers();
});
it('fires onDidChange only once when adding an existing file', () => {
const manager = new RecentFilesManager(context);
const uri = vscode.Uri.file('/test/file1.txt');
manager.add(uri);
const spy = vi.spyOn(manager['onDidChangeEmitter'], 'fire');
manager.add(uri);
expect(spy).toHaveBeenCalledTimes(1);
});
it('updates the file when it is renamed', () => {
const manager = new RecentFilesManager(context);
const oldUri = vscode.Uri.file('/test/file1.txt');
const newUri = vscode.Uri.file('/test/file2.txt');
manager.add(oldUri);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
// Simulate renaming the file
const renameHandler = vi.mocked(vscode.workspace.onDidRenameFiles).mock
.calls[0][0];
renameHandler({ files: [{ oldUri, newUri }] });
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
});
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