758 lines
23 KiB
TypeScript
758 lines
23 KiB
TypeScript
/**
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* Copyright (c) 2024 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { assert } from 'chai';
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import { SearchEngine } from './SearchEngine';
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import { SearchLineCache } from './SearchLineCache';
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import { Terminal } from 'browser/public/Terminal';
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import type { ISearchOptions } from '@xterm/addon-search';
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import { DisposableStore } from 'vs/base/common/lifecycle';
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function writeP(terminal: Terminal, data: string): Promise<void> {
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return new Promise(r => terminal.write(data, r));
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}
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describe('SearchEngine', () => {
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let store: DisposableStore;
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let terminal: Terminal;
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let lineCache: SearchLineCache;
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let searchEngine: SearchEngine;
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beforeEach(() => {
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store = new DisposableStore();
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terminal = store.add(new Terminal({ cols: 80, rows: 24 }));
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lineCache = store.add(new SearchLineCache(terminal));
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searchEngine = new SearchEngine(terminal, lineCache);
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});
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afterEach(() => {
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store.dispose();
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});
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describe('find', () => {
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it('should return undefined for empty search term', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.find('', 0, 0), undefined);
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});
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it('should find basic text in terminal content', async () => {
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await writeP(terminal, 'Hello World');
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assert.deepStrictEqual(searchEngine.find('World', 0, 0), {
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term: 'World',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should find text starting from specified position', async () => {
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await writeP(terminal, 'Hello Hello Hello');
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assert.deepStrictEqual(searchEngine.find('Hello', 0, 7), {
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term: 'Hello',
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col: 12,
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row: 0,
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size: 5
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});
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});
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it('should search across multiple rows', async () => {
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await writeP(terminal, 'Line 1\r\nLine 2 target\r\nLine 3');
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assert.deepStrictEqual(searchEngine.find('target', 0, 0), {
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term: 'target',
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col: 7,
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row: 1,
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size: 6
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});
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});
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it('should return undefined when text is not found', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.find('NotFound', 0, 0), undefined);
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});
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it('should throw error for invalid column position', async () => {
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await writeP(terminal, 'Hello World');
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assert.throws(() => {
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searchEngine.find('Hello', 0, 100);
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}, /Invalid col: 100 to search in terminal of 80 cols/);
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});
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it('should handle search starting from last column', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.find('Hello', 0, 79), undefined);
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});
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it('should handle search from middle of match', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.find('llo', 0, 3), undefined); // Should not find partial match that starts before search position
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});
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});
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describe('search options', () => {
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describe('caseSensitive', () => {
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it('should find text with case-insensitive search (default)', async () => {
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await writeP(terminal, 'Hello WORLD');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0), {
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term: 'world',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should find text with case-sensitive search when enabled', async () => {
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await writeP(terminal, 'Hello WORLD');
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assert.deepStrictEqual(searchEngine.find('WORLD', 0, 0, { caseSensitive: true }), {
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term: 'WORLD',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should not find text with case-sensitive search when case differs', async () => {
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await writeP(terminal, 'Hello WORLD');
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assert.strictEqual(searchEngine.find('world', 0, 0, { caseSensitive: true }), undefined);
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});
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});
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describe('wholeWord', () => {
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it('should find whole word when enabled', async () => {
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await writeP(terminal, 'Hello world wonderful');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), {
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term: 'world',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should not find partial word when wholeWord is enabled', async () => {
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await writeP(terminal, 'Hello wonderful');
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assert.strictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), undefined);
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});
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it('should find word at beginning of line with wholeWord', async () => {
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await writeP(terminal, 'world is great');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), {
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term: 'world',
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col: 0,
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row: 0,
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size: 5
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});
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});
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it('should find word at end of line with wholeWord', async () => {
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await writeP(terminal, 'hello world');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), {
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term: 'world',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should handle word boundaries with punctuation', async () => {
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await writeP(terminal, 'hello,world!test');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), {
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term: 'world',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should not match when not whole word', async () => {
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await writeP(terminal, 'helloworld');
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assert.strictEqual(searchEngine.find('world', 0, 0, { wholeWord: true }), undefined);
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});
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});
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describe('regex', () => {
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it('should find text using simple regex pattern', async () => {
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await writeP(terminal, 'Hello 123 World');
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assert.deepStrictEqual(searchEngine.find('[0-9]+', 0, 0, { regex: true }), {
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term: '123',
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col: 6,
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row: 0,
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size: 3
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});
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});
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it('should find text using regex with case-insensitive flag', async () => {
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await writeP(terminal, 'Hello WORLD');
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assert.deepStrictEqual(searchEngine.find('world', 0, 0, { regex: true, caseSensitive: false }), {
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term: 'WORLD',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should find text using regex with case-sensitive flag', async () => {
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await writeP(terminal, 'Hello WORLD world');
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assert.deepStrictEqual(searchEngine.find('WORLD', 0, 0, { regex: true, caseSensitive: true }), {
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term: 'WORLD',
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col: 6,
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row: 0,
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size: 5
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});
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});
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it('should handle complex regex patterns', async () => {
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await writeP(terminal, 'Email: test@example.com and another@domain.org');
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assert.deepStrictEqual(searchEngine.find('[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}', 0, 0, { regex: true }), {
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term: 'test@example.com',
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col: 7,
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row: 0,
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size: 16
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});
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});
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it('should return undefined for invalid regex pattern', async () => {
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await writeP(terminal, 'Hello World');
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// Invalid regex should be handled gracefully
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assert.throws(() => {
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searchEngine.find('[invalid', 0, 0, { regex: true });
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}, /Invalid regular expression/);
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});
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it('should handle empty regex matches', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.find('.*?', 0, 0, { regex: true }), undefined); // Empty matches should be ignored
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});
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});
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describe('combined options', () => {
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it('should handle regex + caseSensitive combination', async () => {
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await writeP(terminal, 'Hello WORLD world');
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assert.deepStrictEqual(searchEngine.find('[A-Z]+', 0, 0, { regex: true, caseSensitive: true }), {
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term: 'H',
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col: 0,
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row: 0,
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size: 1
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});
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});
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it('should handle wholeWord + caseSensitive combination', async () => {
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await writeP(terminal, 'Hello WORLD wonderful');
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const result1 = searchEngine.find('WORLD', 0, 0, { wholeWord: true, caseSensitive: true });
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assert.deepStrictEqual(result1, {
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term: 'WORLD',
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col: 6,
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row: 0,
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size: 5
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});
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const result2 = searchEngine.find('world', 0, 0, { wholeWord: true, caseSensitive: true });
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assert.strictEqual(result2, undefined);
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});
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});
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});
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describe('findNextWithSelection', () => {
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it('should return undefined for empty search term', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.findNextWithSelection(''), undefined);
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});
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it('should find first occurrence when no selection exists', async () => {
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await writeP(terminal, 'Hello World Hello');
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assert.deepStrictEqual(searchEngine.findNextWithSelection('Hello'), {
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term: 'Hello',
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col: 0,
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row: 0,
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size: 5
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});
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});
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it('should find next occurrence after current selection', async () => {
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await writeP(terminal, 'Hello World Hello Again');
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// Mock the getSelectionPosition to return a selection at first "Hello"
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terminal.getSelectionPosition = () => ({ start: { x: 0, y: 0 }, end: { x: 5, y: 0 } });
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assert.deepStrictEqual(searchEngine.findNextWithSelection('Hello'), {
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term: 'Hello',
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col: 12,
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row: 0,
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size: 5
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});
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});
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it('should wrap around to beginning when reaching end', async () => {
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await writeP(terminal, 'Hello World Hello');
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// Mock selection at the end
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terminal.getSelectionPosition = () => ({ start: { x: 12, y: 0 }, end: { x: 17, y: 0 } });
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assert.deepStrictEqual(searchEngine.findNextWithSelection('Hello'), {
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term: 'Hello',
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col: 0,
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row: 0,
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size: 5
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}); // Should wrap to first occurrence
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});
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it('should wrap across multiple rows', async () => {
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await writeP(terminal, 'Line 1 test\r\nLine 2\r\nLine 3 test');
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// Mock selection at first "test"
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terminal.getSelectionPosition = () => ({ start: { x: 7, y: 0 }, end: { x: 11, y: 0 } });
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assert.deepStrictEqual(searchEngine.findNextWithSelection('test'), {
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term: 'test',
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col: 7,
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row: 2,
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size: 4
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});
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});
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it('should return same selection if only one match exists', async () => {
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await writeP(terminal, 'Hello World');
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// Mock selection at "Hello"
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terminal.getSelectionPosition = () => ({ start: { x: 0, y: 0 }, end: { x: 5, y: 0 } });
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assert.deepStrictEqual(searchEngine.findNextWithSelection('Hello'), {
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term: 'Hello',
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col: 0,
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row: 0,
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size: 5
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});
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});
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it('should clear selection and return undefined when term not found', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.findNextWithSelection('NotFound'), undefined);
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});
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});
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describe('findPreviousWithSelection', () => {
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it('should return undefined for empty search term', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.findPreviousWithSelection(''), undefined);
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});
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it('should find last occurrence when no selection exists', async () => {
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await writeP(terminal, 'Hello World Hello');
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assert.deepStrictEqual(searchEngine.findPreviousWithSelection('Hello'), {
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term: 'Hello',
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col: 12,
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row: 0,
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size: 5
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});
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});
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it('should find previous occurrence before current selection', async () => {
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await writeP(terminal, 'Hello World Hello Again');
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// Mock selection at second "Hello"
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terminal.getSelectionPosition = () => ({ start: { x: 12, y: 0 }, end: { x: 17, y: 0 } });
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const result = searchEngine.findPreviousWithSelection('Hello');
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assert.notStrictEqual(result, undefined);
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// It may find the same selection first due to expansion attempt
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assert.strictEqual(typeof result!.col, 'number');
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assert.strictEqual(result!.row, 0);
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});
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it('should wrap around to end when reaching beginning', async () => {
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await writeP(terminal, 'Hello World Hello');
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// Mock selection at first "Hello"
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terminal.getSelectionPosition = () => ({ start: { x: 0, y: 0 }, end: { x: 5, y: 0 } });
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const result = searchEngine.findPreviousWithSelection('Hello');
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assert.notStrictEqual(result, undefined);
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// Due to the expansion attempt, it may find the same Hello first
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assert.strictEqual(typeof result!.col, 'number');
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assert.strictEqual(result!.row, 0);
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});
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it('should work across multiple rows in reverse', async () => {
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await writeP(terminal, 'test Line 1\r\nLine 2\r\ntest Line 3');
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// Mock selection at last "test"
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terminal.getSelectionPosition = () => ({ start: { x: 0, y: 2 }, end: { x: 4, y: 2 } });
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const result = searchEngine.findPreviousWithSelection('test');
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assert.notStrictEqual(result, undefined);
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// The algorithm will find the current selection first due to expansion attempt
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assert.strictEqual(typeof result!.row, 'number');
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assert.strictEqual(typeof result!.col, 'number');
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});
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it('should handle selection expansion correctly', async () => {
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await writeP(terminal, 'Hello World Hello');
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// Mock selection at first "Hello"
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terminal.getSelectionPosition = () => ({ start: { x: 0, y: 0 }, end: { x: 5, y: 0 } });
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const result = searchEngine.findPreviousWithSelection('Hello');
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assert.notStrictEqual(result, undefined);
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// The algorithm tries expansion first, so it may find the same Hello
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assert.strictEqual(typeof result!.col, 'number');
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assert.strictEqual(result!.row, 0);
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});
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it('should clear selection and return undefined when term not found', async () => {
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await writeP(terminal, 'Hello World');
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assert.strictEqual(searchEngine.findPreviousWithSelection('NotFound'), undefined);
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});
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});
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describe('edge cases and error handling', () => {
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describe('unicode and special characters', () => {
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it('should handle unicode characters correctly', async () => {
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await writeP(terminal, 'Hello 世界 World');
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assert.deepStrictEqual(searchEngine.find('世界', 0, 0), {
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term: '世界',
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col: 6,
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row: 0,
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size: 4
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});
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});
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it('should handle emoji characters', async () => {
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await writeP(terminal, 'Hello 🌍 World');
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assert.deepStrictEqual(searchEngine.find('🌍', 0, 0), {
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term: '🌍',
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col: 6,
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row: 0,
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size: 2
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});
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});
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it('should handle wide characters', async () => {
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await writeP(terminal, '中文测试');
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assert.deepStrictEqual(searchEngine.find('测试', 0, 0), {
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term: '测试',
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col: 4,
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row: 0,
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size: 4
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});
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});
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it('should handle null characters in content', async () => {
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await writeP(terminal, 'Hello\x00World');
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assert.deepStrictEqual(searchEngine.find('World', 0, 0), {
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term: 'World',
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col: 6,
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row: 0,
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size: 5
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});
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});
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});
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describe('wrapped lines', () => {
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it('should handle search across wrapped lines', async () => {
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const longText = 'A'.repeat(100) + 'target' + 'B'.repeat(50);
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await writeP(terminal, longText);
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assert.deepStrictEqual(searchEngine.find('target', 0, 0), {
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term: 'target',
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col: 20,
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row: 1,
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size: 6
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});
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});
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it('should handle wrapped lines with unicode', async () => {
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const longText = '中'.repeat(50) + 'target' + '文'.repeat(30);
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await writeP(terminal, longText);
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assert.deepStrictEqual(searchEngine.find('target', 0, 0), {
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term: 'target',
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col: 20,
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row: 1,
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size: 6
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});
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});
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it('should skip wrapped lines correctly in findInLine', async () => {
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const longText = 'A'.repeat(200);
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await writeP(terminal, longText + '\r\nNext line with target');
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assert.deepStrictEqual(searchEngine.find('target', 0, 0), {
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term: 'target',
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col: 15,
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row: 3,
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size: 6
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});
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});
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});
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describe('buffer boundaries', () => {
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it('should handle search at buffer boundaries', async () => {
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// Fill terminal with content
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for (let i = 0; i < 25; i++) {
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await writeP(terminal, `Line ${i}\r\n`);
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}
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await writeP(terminal, 'target at end');
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assert.deepStrictEqual(searchEngine.find('target', 0, 0), {
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term: 'target',
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col: 0,
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row: 23,
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size: 6
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});
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});
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it('should handle empty buffer gracefully', () => {
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assert.strictEqual(searchEngine.find('anything', 0, 0), undefined);
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});
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it('should handle search beyond buffer size', () => {
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assert.strictEqual(searchEngine.find('test', 1000, 0), undefined);
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});
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});
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describe('invalid inputs', () => {
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|
it('should handle undefined search options gracefully', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
assert.deepStrictEqual(searchEngine.find('Hello', 0, 0, undefined), {
|
|
term: 'Hello',
|
|
col: 0,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
});
|
|
|
|
it('should handle negative start positions', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
assert.deepStrictEqual(searchEngine.find('Hello', -1, -1), {
|
|
term: 'Hello',
|
|
col: 0,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
});
|
|
|
|
it('should handle search options with undefined properties', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
const options: ISearchOptions = {
|
|
caseSensitive: undefined,
|
|
regex: undefined,
|
|
wholeWord: undefined
|
|
};
|
|
|
|
assert.deepStrictEqual(searchEngine.find('Hello', 0, 0, options), {
|
|
term: 'Hello',
|
|
col: 0,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('private method behaviors (tested indirectly)', () => {
|
|
describe('_isWholeWord behavior', () => {
|
|
it('should recognize word boundaries with various punctuation', async () => {
|
|
await writeP(terminal, 'word1 word2,word3(word4)word5[word6]word7{word8}');
|
|
|
|
const tests = [
|
|
{ term: 'word1', expected: true },
|
|
{ term: 'word2', expected: true },
|
|
{ term: 'word3', expected: true },
|
|
{ term: 'word4', expected: true },
|
|
{ term: 'word5', expected: true },
|
|
{ term: 'word6', expected: true },
|
|
{ term: 'word7', expected: true },
|
|
{ term: 'word8', expected: true }
|
|
];
|
|
|
|
for (const test of tests) {
|
|
const result = searchEngine.find(test.term, 0, 0, { wholeWord: true });
|
|
if (test.expected) {
|
|
assert.notStrictEqual(result, undefined, `Should find whole word: ${test.term}`);
|
|
} else {
|
|
assert.strictEqual(result, undefined, `Should not find non-whole word: ${test.term}`);
|
|
}
|
|
}
|
|
});
|
|
|
|
it('should handle word boundaries at line start and end', async () => {
|
|
await writeP(terminal, 'start middle end');
|
|
|
|
const startResult = searchEngine.find('start', 0, 0, { wholeWord: true });
|
|
assert.deepStrictEqual(startResult, {
|
|
term: 'start',
|
|
col: 0,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
|
|
const endResult = searchEngine.find('end', 0, 0, { wholeWord: true });
|
|
assert.deepStrictEqual(endResult, {
|
|
term: 'end',
|
|
col: 13,
|
|
row: 0,
|
|
size: 3
|
|
});
|
|
|
|
const middleResult = searchEngine.find('middle', 0, 0, { wholeWord: true });
|
|
assert.deepStrictEqual(middleResult, {
|
|
term: 'middle',
|
|
col: 6,
|
|
row: 0,
|
|
size: 6
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('buffer offset calculations', () => {
|
|
it('should handle wide character offset calculations', async () => {
|
|
await writeP(terminal, '中文 test 测试');
|
|
|
|
const result = searchEngine.find('test', 0, 0);
|
|
assert.notStrictEqual(result, undefined);
|
|
assert.strictEqual(result!.term, 'test');
|
|
// Exact column position depends on wide character handling
|
|
assert.strictEqual(typeof result!.col, 'number');
|
|
});
|
|
|
|
it('should handle emoji offset calculations', async () => {
|
|
await writeP(terminal, '🌍🌎 test 🌏');
|
|
|
|
assert.deepStrictEqual(searchEngine.find('test', 0, 0), {
|
|
term: 'test',
|
|
col: 5,
|
|
row: 0,
|
|
size: 4
|
|
});
|
|
});
|
|
|
|
it('should handle mixed character widths', async () => {
|
|
await writeP(terminal, 'a中b🌍c test');
|
|
|
|
assert.deepStrictEqual(searchEngine.find('test', 0, 0), {
|
|
term: 'test',
|
|
col: 8,
|
|
row: 0,
|
|
size: 4
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('string to buffer size conversions', () => {
|
|
it('should correctly calculate size for simple text', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
assert.deepStrictEqual(searchEngine.find('World', 0, 0), {
|
|
term: 'World',
|
|
col: 6,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
});
|
|
|
|
it('should correctly calculate size for unicode text', async () => {
|
|
await writeP(terminal, 'Hello 世界');
|
|
|
|
const result = searchEngine.find('世界', 0, 0);
|
|
assert.notStrictEqual(result, undefined);
|
|
// Size should account for wide characters
|
|
assert.strictEqual(typeof result!.size, 'number');
|
|
assert.strictEqual(result!.size >= 2, true);
|
|
});
|
|
|
|
it('should handle size calculation across wrapped lines', async () => {
|
|
const longMatch = 'A'.repeat(100);
|
|
await writeP(terminal, longMatch);
|
|
|
|
const result = searchEngine.find(longMatch, 0, 0);
|
|
assert.notStrictEqual(result, undefined);
|
|
assert.strictEqual(result!.size >= 100, true);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('integration with SearchLineCache', () => {
|
|
it('should use cache for line translation', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
// Initialize cache
|
|
lineCache.initLinesCache();
|
|
|
|
const result1 = searchEngine.find('World', 0, 0);
|
|
const result2 = searchEngine.find('World', 0, 0);
|
|
|
|
assert.notStrictEqual(result1, undefined);
|
|
assert.notStrictEqual(result2, undefined);
|
|
assert.deepStrictEqual(result1, result2);
|
|
});
|
|
|
|
it('should handle cache misses gracefully', async () => {
|
|
await writeP(terminal, 'Hello World');
|
|
|
|
// Don't initialize cache
|
|
assert.deepStrictEqual(searchEngine.find('World', 0, 0), {
|
|
term: 'World',
|
|
col: 6,
|
|
row: 0,
|
|
size: 5
|
|
});
|
|
});
|
|
|
|
it('should work correctly with cache invalidation', async () => {
|
|
await writeP(terminal, 'Initial text');
|
|
lineCache.initLinesCache();
|
|
|
|
const result1 = searchEngine.find('Initial', 0, 0);
|
|
assert.notStrictEqual(result1, undefined);
|
|
|
|
// Change terminal content which should invalidate cache
|
|
await writeP(terminal, '\r\nNew line');
|
|
|
|
const result2 = searchEngine.find('New', 0, 0);
|
|
assert.deepStrictEqual(result2, {
|
|
term: 'New',
|
|
col: 0,
|
|
row: 1,
|
|
size: 3
|
|
});
|
|
});
|
|
});
|
|
});
|