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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(() => {
const listeners: Array<(e: void) => unknown> = [];
return {
event: vi.fn((listener) => {
listeners.push(listener);
return { dispose: vi.fn() };
}),
fire: vi.fn(() => {
listeners.forEach((listener) => listener(undefined));
}),
dispose: vi.fn(),
};
}),
window: {
onDidChangeActiveTextEditor: vi.fn(),
onDidChangeTextEditorSelection: vi.fn(),
},
workspace: {
onDidDeleteFiles: vi.fn(),
onDidCloseTextDocument: vi.fn(),
onDidRenameFiles: vi.fn(),
},
Uri: {
file: (path: string) => ({
fsPath: path,
scheme: 'file',
}),
},
}));
describe('RecentFilesManager', () => {
let context: vscode.ExtensionContext;
let onDidChangeActiveTextEditorListener: (
editor: vscode.TextEditor | undefined,
) => void;
let onDidDeleteFilesListener: (e: vscode.FileDeleteEvent) => void;
let onDidCloseTextDocumentListener: (doc: vscode.TextDocument) => void;
let onDidRenameFilesListener: (e: vscode.FileRenameEvent) => void;
beforeEach(() => {
vi.useFakeTimers();
vi.mocked(vscode.window.onDidChangeActiveTextEditor).mockImplementation(
(listener) => {
onDidChangeActiveTextEditorListener = listener;
return { dispose: vi.fn() };
},
);
vi.mocked(vscode.workspace.onDidDeleteFiles).mockImplementation(
(listener) => {
onDidDeleteFilesListener = listener;
return { dispose: vi.fn() };
},
);
vi.mocked(vscode.workspace.onDidCloseTextDocument).mockImplementation(
(listener) => {
onDidCloseTextDocumentListener = listener;
return { dispose: vi.fn() };
},
);
vi.mocked(vscode.workspace.onDidRenameFiles).mockImplementation(
(listener) => {
onDidRenameFilesListener = listener;
return { dispose: vi.fn() };
},
);
context = {
subscriptions: [],
} as unknown as vscode.ExtensionContext;
});
afterEach(() => {
vi.restoreAllMocks();
vi.useRealTimers();
});
const getUri = (path: string) =>
vscode.Uri.file(path) as unknown as vscode.Uri;
it('adds a file to the list', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
});
it('moves an existing file to the top', async () => {
const manager = new RecentFilesManager(context);
const uri1 = getUri('/test/file1.txt');
const uri2 = getUri('/test/file2.txt');
manager.add(uri1);
manager.add(uri2);
manager.add(uri1);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(2);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
});
it('does not exceed the max number of files', async () => {
const manager = new RecentFilesManager(context);
for (let i = 0; i < MAX_FILES + 5; i++) {
const uri = getUri(`/test/file${i}.txt`);
manager.add(uri);
}
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(MAX_FILES);
expect(manager.recentFiles[0].filePath).toBe(
`/test/file${MAX_FILES + 4}.txt`,
);
expect(manager.recentFiles[MAX_FILES - 1].filePath).toBe(`/test/file5.txt`);
});
it('fires onDidChange when a file is added', async () => {
const manager = new RecentFilesManager(context);
const onDidChangeSpy = vi.fn();
manager.onDidChange(onDidChangeSpy);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
expect(onDidChangeSpy).toHaveBeenCalled();
});
it('removes a file when it is closed', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
onDidCloseTextDocumentListener({ uri } as vscode.TextDocument);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(0);
});
it('fires onDidChange when a file is removed', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
const onDidChangeSpy = vi.fn();
manager.onDidChange(onDidChangeSpy);
onDidCloseTextDocumentListener({ uri } as vscode.TextDocument);
await vi.advanceTimersByTimeAsync(100);
expect(onDidChangeSpy).toHaveBeenCalled();
});
it('removes a file when it is deleted', async () => {
const manager = new RecentFilesManager(context);
const uri1 = getUri('/test/file1.txt');
const uri2 = getUri('/test/file2.txt');
manager.add(uri1);
manager.add(uri2);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(2);
onDidDeleteFilesListener({ files: [uri1] });
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('fires onDidChange when a file is deleted', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
const onDidChangeSpy = vi.fn();
manager.onDidChange(onDidChangeSpy);
onDidDeleteFilesListener({ files: [uri] });
await vi.advanceTimersByTimeAsync(100);
expect(onDidChangeSpy).toHaveBeenCalled();
});
it('removes multiple files when they are deleted', async () => {
const manager = new RecentFilesManager(context);
const uri1 = getUri('/test/file1.txt');
const uri2 = getUri('/test/file2.txt');
const uri3 = getUri('/test/file3.txt');
manager.add(uri1);
manager.add(uri2);
manager.add(uri3);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(3);
onDidDeleteFilesListener({ files: [uri1, uri3] });
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('prunes files older than the max age', () => {
const manager = new RecentFilesManager(context);
const uri1 = getUri('/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 = getUri('/test/file2.txt');
manager.add(uri2);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('fires onDidChange only once when adding an existing file', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
const onDidChangeSpy = vi.fn();
manager.onDidChange(onDidChangeSpy);
manager.add(uri);
await vi.advanceTimersByTimeAsync(100);
expect(onDidChangeSpy).toHaveBeenCalledTimes(1);
});
it('updates the file when it is renamed', async () => {
const manager = new RecentFilesManager(context);
const oldUri = getUri('/test/file1.txt');
const newUri = getUri('/test/file2.txt');
manager.add(oldUri);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
onDidRenameFilesListener({ files: [{ oldUri, newUri }] });
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file2.txt');
});
it('adds a file when the active editor changes', async () => {
const manager = new RecentFilesManager(context);
const uri = getUri('/test/file1.txt');
onDidChangeActiveTextEditorListener({
document: { uri },
} as vscode.TextEditor);
await vi.advanceTimersByTimeAsync(100);
expect(manager.recentFiles).toHaveLength(1);
expect(manager.recentFiles[0].filePath).toBe('/test/file1.txt');
});
});
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