1692 lines
50 KiB
TypeScript
1692 lines
50 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import { describe, it, expect, vi, beforeEach } from 'vitest';
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import { renderHook, act } from '@testing-library/react';
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import React from 'react';
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import { useVim } from './vim.js';
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import type { TextBuffer } from '../components/shared/text-buffer.js';
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import { textBufferReducer } from '../components/shared/text-buffer.js';
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// Mock the VimModeContext
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const mockVimContext = {
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vimEnabled: true,
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vimMode: 'NORMAL' as const,
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toggleVimEnabled: vi.fn(),
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setVimMode: vi.fn(),
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};
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vi.mock('../contexts/VimModeContext.js', () => ({
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useVimMode: () => mockVimContext,
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VimModeProvider: ({ children }: { children: React.ReactNode }) => children,
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}));
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// Test constants
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const TEST_SEQUENCES = {
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ESCAPE: { sequence: '\u001b', name: 'escape' },
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LEFT: { sequence: 'h' },
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RIGHT: { sequence: 'l' },
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UP: { sequence: 'k' },
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DOWN: { sequence: 'j' },
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INSERT: { sequence: 'i' },
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APPEND: { sequence: 'a' },
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DELETE_CHAR: { sequence: 'x' },
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DELETE: { sequence: 'd' },
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CHANGE: { sequence: 'c' },
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WORD_FORWARD: { sequence: 'w' },
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WORD_BACKWARD: { sequence: 'b' },
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WORD_END: { sequence: 'e' },
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LINE_START: { sequence: '0' },
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LINE_END: { sequence: '$' },
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REPEAT: { sequence: '.' },
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} as const;
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describe('useVim hook', () => {
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let mockBuffer: Partial<TextBuffer>;
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let mockHandleFinalSubmit: vi.Mock;
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const createMockBuffer = (
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text = 'hello world',
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cursor: [number, number] = [0, 5],
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) => {
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const cursorState = { pos: cursor };
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const lines = text.split('\n');
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return {
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lines,
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get cursor() {
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return cursorState.pos;
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},
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set cursor(newPos: [number, number]) {
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cursorState.pos = newPos;
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},
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text,
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move: vi.fn().mockImplementation((direction: string) => {
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let [row, col] = cursorState.pos;
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const _line = lines[row] || '';
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if (direction === 'left') {
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col = Math.max(0, col - 1);
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} else if (direction === 'right') {
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col = Math.min(line.length, col + 1);
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} else if (direction === 'home') {
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col = 0;
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} else if (direction === 'end') {
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col = line.length;
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}
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cursorState.pos = [row, col];
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}),
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del: vi.fn(),
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moveToOffset: vi.fn(),
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insert: vi.fn(),
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newline: vi.fn(),
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replaceRangeByOffset: vi.fn(),
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handleInput: vi.fn(),
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setText: vi.fn(),
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// Vim-specific methods
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vimDeleteWordForward: vi.fn(),
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vimDeleteWordBackward: vi.fn(),
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vimDeleteWordEnd: vi.fn(),
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vimChangeWordForward: vi.fn(),
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vimChangeWordBackward: vi.fn(),
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vimChangeWordEnd: vi.fn(),
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vimDeleteLine: vi.fn(),
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vimChangeLine: vi.fn(),
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vimDeleteToEndOfLine: vi.fn(),
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vimChangeToEndOfLine: vi.fn(),
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vimChangeMovement: vi.fn(),
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vimMoveLeft: vi.fn(),
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vimMoveRight: vi.fn(),
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vimMoveUp: vi.fn(),
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vimMoveDown: vi.fn(),
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vimMoveWordForward: vi.fn(),
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vimMoveWordBackward: vi.fn(),
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vimMoveWordEnd: vi.fn(),
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vimDeleteChar: vi.fn(),
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vimInsertAtCursor: vi.fn(),
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vimAppendAtCursor: vi.fn().mockImplementation(() => {
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// Append moves cursor right (vim 'a' behavior - position after current char)
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const [row, col] = cursorState.pos;
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const _line = lines[row] || '';
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// In vim, 'a' moves cursor to position after current character
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// This allows inserting at the end of the line
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cursorState.pos = [row, col + 1];
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}),
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vimOpenLineBelow: vi.fn(),
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vimOpenLineAbove: vi.fn(),
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vimAppendAtLineEnd: vi.fn(),
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vimInsertAtLineStart: vi.fn(),
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vimMoveToLineStart: vi.fn(),
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vimMoveToLineEnd: vi.fn(),
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vimMoveToFirstNonWhitespace: vi.fn(),
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vimMoveToFirstLine: vi.fn(),
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vimMoveToLastLine: vi.fn(),
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vimMoveToLine: vi.fn(),
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vimEscapeInsertMode: vi.fn().mockImplementation(() => {
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// Escape moves cursor left unless at beginning of line
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const [row, col] = cursorState.pos;
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if (col > 0) {
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cursorState.pos = [row, col - 1];
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}
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}),
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};
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};
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const _createMockSettings = (vimMode = true) => ({
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getValue: vi.fn().mockReturnValue(vimMode),
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setValue: vi.fn(),
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merged: { vimMode },
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});
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const renderVimHook = (buffer?: Partial<TextBuffer>) =>
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renderHook(() =>
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useVim((buffer || mockBuffer) as TextBuffer, mockHandleFinalSubmit),
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);
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const exitInsertMode = (result: {
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current: {
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handleInput: (input: { sequence: string; name: string }) => void;
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};
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}) => {
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act(() => {
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result.current.handleInput({ sequence: '\u001b', name: 'escape' });
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});
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};
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beforeEach(() => {
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vi.clearAllMocks();
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mockHandleFinalSubmit = vi.fn();
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mockBuffer = createMockBuffer();
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// Reset mock context to default state
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mockVimContext.vimEnabled = true;
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mockVimContext.vimMode = 'NORMAL';
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mockVimContext.toggleVimEnabled.mockClear();
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mockVimContext.setVimMode.mockClear();
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});
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describe('Mode switching', () => {
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it('should start in NORMAL mode', () => {
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const { result } = renderVimHook();
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expect(result.current.mode).toBe('NORMAL');
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});
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it('should switch to INSERT mode with i command', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput(TEST_SEQUENCES.INSERT);
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});
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expect(result.current.mode).toBe('INSERT');
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expect(mockVimContext.setVimMode).toHaveBeenCalledWith('INSERT');
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});
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it('should switch back to NORMAL mode with Escape', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput(TEST_SEQUENCES.INSERT);
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});
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expect(result.current.mode).toBe('INSERT');
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exitInsertMode(result);
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expect(result.current.mode).toBe('NORMAL');
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});
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it('should properly handle escape followed immediately by a command', () => {
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const testBuffer = createMockBuffer('hello world test', [0, 6]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'i' });
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});
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expect(result.current.mode).toBe('INSERT');
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vi.clearAllMocks();
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exitInsertMode(result);
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expect(result.current.mode).toBe('NORMAL');
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act(() => {
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result.current.handleInput({ sequence: 'b' });
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});
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expect(testBuffer.vimMoveWordBackward).toHaveBeenCalledWith(1);
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});
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});
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describe('Navigation commands', () => {
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it('should handle h (left movement)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'h' });
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});
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expect(mockBuffer.vimMoveLeft).toHaveBeenCalledWith(1);
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});
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it('should handle l (right movement)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'l' });
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});
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expect(mockBuffer.vimMoveRight).toHaveBeenCalledWith(1);
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});
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it('should handle j (down movement)', () => {
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const testBuffer = createMockBuffer('first line\nsecond line');
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'j' });
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});
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expect(testBuffer.vimMoveDown).toHaveBeenCalledWith(1);
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});
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it('should handle k (up movement)', () => {
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const testBuffer = createMockBuffer('first line\nsecond line');
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'k' });
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});
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expect(testBuffer.vimMoveUp).toHaveBeenCalledWith(1);
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});
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it('should handle 0 (move to start of line)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: '0' });
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});
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expect(mockBuffer.vimMoveToLineStart).toHaveBeenCalled();
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});
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it('should handle $ (move to end of line)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: '$' });
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});
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expect(mockBuffer.vimMoveToLineEnd).toHaveBeenCalled();
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});
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});
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describe('Mode switching commands', () => {
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it('should handle a (append after cursor)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'a' });
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});
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expect(mockBuffer.vimAppendAtCursor).toHaveBeenCalled();
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expect(result.current.mode).toBe('INSERT');
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});
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it('should handle A (append at end of line)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'A' });
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});
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expect(mockBuffer.vimAppendAtLineEnd).toHaveBeenCalled();
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expect(result.current.mode).toBe('INSERT');
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});
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it('should handle o (open line below)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'o' });
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});
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expect(mockBuffer.vimOpenLineBelow).toHaveBeenCalled();
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expect(result.current.mode).toBe('INSERT');
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});
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it('should handle O (open line above)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'O' });
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});
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expect(mockBuffer.vimOpenLineAbove).toHaveBeenCalled();
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expect(result.current.mode).toBe('INSERT');
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});
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});
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describe('Edit commands', () => {
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it('should handle x (delete character)', () => {
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const { result } = renderVimHook();
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vi.clearAllMocks();
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act(() => {
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result.current.handleInput({ sequence: 'x' });
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});
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expect(mockBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
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});
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it('should move cursor left when deleting last character on line (vim behavior)', () => {
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const testBuffer = createMockBuffer('hello', [0, 4]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'x' });
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});
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expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
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});
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it('should handle first d key (sets pending state)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'd' });
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});
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expect(mockBuffer.replaceRangeByOffset).not.toHaveBeenCalled();
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});
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});
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describe('Count handling', () => {
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it('should handle count input and return to count 0 after command', () => {
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const { result } = renderVimHook();
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act(() => {
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const handled = result.current.handleInput({ sequence: '3' });
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expect(handled).toBe(true);
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});
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act(() => {
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const handled = result.current.handleInput({ sequence: 'h' });
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expect(handled).toBe(true);
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});
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expect(mockBuffer.vimMoveLeft).toHaveBeenCalledWith(3);
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});
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it('should only delete 1 character with x command when no count is specified', () => {
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const testBuffer = createMockBuffer();
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'x' });
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});
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expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
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});
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});
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describe('Word movement', () => {
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it('should properly initialize vim hook with word movement support', () => {
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const testBuffer = createMockBuffer('cat elephant mouse', [0, 0]);
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const { result } = renderVimHook(testBuffer);
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expect(result.current.vimModeEnabled).toBe(true);
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expect(result.current.mode).toBe('NORMAL');
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expect(result.current.handleInput).toBeDefined();
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});
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it('should support vim mode and basic operations across multiple lines', () => {
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const testBuffer = createMockBuffer(
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'first line word\nsecond line word',
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[0, 11],
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);
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const { result } = renderVimHook(testBuffer);
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expect(result.current.vimModeEnabled).toBe(true);
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expect(result.current.mode).toBe('NORMAL');
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expect(result.current.handleInput).toBeDefined();
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expect(testBuffer.replaceRangeByOffset).toBeDefined();
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expect(testBuffer.moveToOffset).toBeDefined();
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});
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it('should handle w (next word)', () => {
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const testBuffer = createMockBuffer('hello world test');
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'w' });
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});
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expect(testBuffer.vimMoveWordForward).toHaveBeenCalledWith(1);
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});
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it('should handle b (previous word)', () => {
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const testBuffer = createMockBuffer('hello world test', [0, 6]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'b' });
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});
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expect(testBuffer.vimMoveWordBackward).toHaveBeenCalledWith(1);
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});
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it('should handle e (end of word)', () => {
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const testBuffer = createMockBuffer('hello world test');
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'e' });
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});
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expect(testBuffer.vimMoveWordEnd).toHaveBeenCalledWith(1);
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});
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it('should handle w when cursor is on the last word', () => {
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const testBuffer = createMockBuffer('hello world', [0, 8]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'w' });
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});
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expect(testBuffer.vimMoveWordForward).toHaveBeenCalledWith(1);
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});
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it('should handle first c key (sets pending change state)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'c' });
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});
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expect(result.current.mode).toBe('NORMAL');
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expect(mockBuffer.del).not.toHaveBeenCalled();
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});
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it('should clear pending state on invalid command sequence (df)', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'd' });
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result.current.handleInput({ sequence: 'f' });
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});
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expect(mockBuffer.replaceRangeByOffset).not.toHaveBeenCalled();
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expect(mockBuffer.del).not.toHaveBeenCalled();
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});
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it('should clear pending state with Escape in NORMAL mode', () => {
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const { result } = renderVimHook();
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act(() => {
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result.current.handleInput({ sequence: 'd' });
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});
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exitInsertMode(result);
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expect(mockBuffer.replaceRangeByOffset).not.toHaveBeenCalled();
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});
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});
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describe('Disabled vim mode', () => {
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it('should not respond to vim commands when disabled', () => {
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mockVimContext.vimEnabled = false;
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const { result } = renderVimHook(mockBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'h' });
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});
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expect(mockBuffer.move).not.toHaveBeenCalled();
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});
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});
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// These tests are no longer applicable at the hook level
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describe('Command repeat system', () => {
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it('should repeat x command from current cursor position', () => {
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const testBuffer = createMockBuffer('abcd\nefgh\nijkl', [0, 1]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'x' });
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});
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expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
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testBuffer.cursor = [1, 2];
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act(() => {
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result.current.handleInput({ sequence: '.' });
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});
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expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
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});
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it('should repeat dd command from current position', () => {
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const testBuffer = createMockBuffer('line1\nline2\nline3', [1, 0]);
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const { result } = renderVimHook(testBuffer);
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act(() => {
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result.current.handleInput({ sequence: 'd' });
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});
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act(() => {
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result.current.handleInput({ sequence: 'd' });
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});
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expect(testBuffer.vimDeleteLine).toHaveBeenCalledTimes(1);
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testBuffer.cursor = [0, 0];
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act(() => {
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result.current.handleInput({ sequence: '.' });
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});
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expect(testBuffer.vimDeleteLine).toHaveBeenCalledTimes(2);
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});
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it('should repeat ce command from current position', () => {
|
|
const testBuffer = createMockBuffer('word', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'e' });
|
|
});
|
|
expect(testBuffer.vimChangeWordEnd).toHaveBeenCalledTimes(1);
|
|
|
|
// Exit INSERT mode to complete the command
|
|
exitInsertMode(result);
|
|
|
|
testBuffer.cursor = [0, 2];
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordEnd).toHaveBeenCalledTimes(2);
|
|
});
|
|
|
|
it('should repeat cc command from current position', () => {
|
|
const testBuffer = createMockBuffer('line1\nline2\nline3', [1, 2]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledTimes(1);
|
|
|
|
// Exit INSERT mode to complete the command
|
|
exitInsertMode(result);
|
|
|
|
testBuffer.cursor = [0, 1];
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledTimes(2);
|
|
});
|
|
|
|
it('should repeat cw command from current position', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 6]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
expect(testBuffer.vimChangeWordForward).toHaveBeenCalledTimes(1);
|
|
|
|
// Exit INSERT mode to complete the command
|
|
exitInsertMode(result);
|
|
|
|
testBuffer.cursor = [0, 0];
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordForward).toHaveBeenCalledTimes(2);
|
|
});
|
|
|
|
it('should repeat D command from current position', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 6]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'D' });
|
|
});
|
|
expect(testBuffer.vimDeleteToEndOfLine).toHaveBeenCalledTimes(1);
|
|
|
|
testBuffer.cursor = [0, 2];
|
|
vi.clearAllMocks(); // Clear all mocks instead of just one method
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteToEndOfLine).toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('should repeat C command from current position', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 6]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'C' });
|
|
});
|
|
expect(testBuffer.vimChangeToEndOfLine).toHaveBeenCalledTimes(1);
|
|
|
|
// Exit INSERT mode to complete the command
|
|
exitInsertMode(result);
|
|
|
|
testBuffer.cursor = [0, 2];
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeToEndOfLine).toHaveBeenCalledTimes(2);
|
|
});
|
|
|
|
it('should repeat command after cursor movement', () => {
|
|
const testBuffer = createMockBuffer('test text', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'x' });
|
|
});
|
|
expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
|
|
|
|
testBuffer.cursor = [0, 2];
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
expect(testBuffer.vimDeleteChar).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should move cursor to the correct position after exiting INSERT mode with "a"', () => {
|
|
const testBuffer = createMockBuffer('hello world', [0, 10]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'a' });
|
|
});
|
|
expect(result.current.mode).toBe('INSERT');
|
|
expect(testBuffer.cursor).toEqual([0, 11]);
|
|
|
|
exitInsertMode(result);
|
|
expect(result.current.mode).toBe('NORMAL');
|
|
expect(testBuffer.cursor).toEqual([0, 10]);
|
|
});
|
|
});
|
|
|
|
describe('Special characters and edge cases', () => {
|
|
it('should handle ^ (move to first non-whitespace character)', () => {
|
|
const testBuffer = createMockBuffer(' hello world', [0, 5]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '^' });
|
|
});
|
|
|
|
expect(testBuffer.vimMoveToFirstNonWhitespace).toHaveBeenCalled();
|
|
});
|
|
|
|
it('should handle G without count (go to last line)', () => {
|
|
const testBuffer = createMockBuffer('line1\nline2\nline3', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'G' });
|
|
});
|
|
|
|
expect(testBuffer.vimMoveToLastLine).toHaveBeenCalled();
|
|
});
|
|
|
|
it('should handle gg (go to first line)', () => {
|
|
const testBuffer = createMockBuffer('line1\nline2\nline3', [2, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// First 'g' sets pending state
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'g' });
|
|
});
|
|
|
|
// Second 'g' executes the command
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'g' });
|
|
});
|
|
|
|
expect(testBuffer.vimMoveToFirstLine).toHaveBeenCalled();
|
|
});
|
|
|
|
it('should handle count with movement commands', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '3' });
|
|
});
|
|
|
|
act(() => {
|
|
result.current.handleInput(TEST_SEQUENCES.WORD_FORWARD);
|
|
});
|
|
|
|
expect(testBuffer.vimMoveWordForward).toHaveBeenCalledWith(3);
|
|
});
|
|
});
|
|
|
|
describe('Vim word operations', () => {
|
|
describe('dw (delete word forward)', () => {
|
|
it('should delete from cursor to start of next word', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordForward).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should actually delete the complete word including trailing space', () => {
|
|
// This test uses the real text-buffer reducer instead of mocks
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 0,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_forward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "hello " (word + space), leaving "world test"
|
|
expect(result.lines).toEqual(['world test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
|
|
it('should delete word from middle of word correctly', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 2, // cursor on 'l' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_forward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "llo " (rest of word + space), leaving "he world test"
|
|
expect(result.lines).toEqual(['heworld test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(2);
|
|
});
|
|
|
|
it('should handle dw at end of line', () => {
|
|
const initialState = {
|
|
lines: ['hello world'],
|
|
cursorRow: 0,
|
|
cursorCol: 6, // cursor on 'w' in "world"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_forward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "world" (no trailing space at end), leaving "hello "
|
|
expect(result.lines).toEqual(['hello ']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
|
|
it('should delete multiple words with count', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '2' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordForward).toHaveBeenCalledWith(2);
|
|
});
|
|
|
|
it('should record command for repeat with dot', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Execute dw
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
vi.clearAllMocks();
|
|
|
|
// Execute dot repeat
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordForward).toHaveBeenCalledWith(1);
|
|
});
|
|
});
|
|
|
|
describe('de (delete word end)', () => {
|
|
it('should delete from cursor to end of current word', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 1]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'e' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordEnd).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should handle count with de', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '3' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'e' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordEnd).toHaveBeenCalledWith(3);
|
|
});
|
|
});
|
|
|
|
describe('cw (change word forward)', () => {
|
|
it('should change from cursor to start of next word and enter INSERT mode', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordForward).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
expect(mockVimContext.setVimMode).toHaveBeenCalledWith('INSERT');
|
|
});
|
|
|
|
it('should handle count with cw', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '2' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordForward).toHaveBeenCalledWith(2);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
|
|
it('should be repeatable with dot', () => {
|
|
const testBuffer = createMockBuffer('hello world test more', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Execute cw
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
// Exit INSERT mode
|
|
exitInsertMode(result);
|
|
|
|
vi.clearAllMocks();
|
|
mockVimContext.setVimMode.mockClear();
|
|
|
|
// Execute dot repeat
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordForward).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
});
|
|
|
|
describe('ce (change word end)', () => {
|
|
it('should change from cursor to end of word and enter INSERT mode', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 1]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'e' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordEnd).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
|
|
it('should handle count with ce', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '2' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'e' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordEnd).toHaveBeenCalledWith(2);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
});
|
|
|
|
describe('cc (change line)', () => {
|
|
it('should change entire line and enter INSERT mode', () => {
|
|
const testBuffer = createMockBuffer('hello world\nsecond line', [0, 5]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
|
|
it('should change multiple lines with count', () => {
|
|
const testBuffer = createMockBuffer(
|
|
'line1\nline2\nline3\nline4',
|
|
[1, 0],
|
|
);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '3' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledWith(3);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
|
|
it('should be repeatable with dot', () => {
|
|
const testBuffer = createMockBuffer('line1\nline2\nline3', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Execute cc
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
|
|
// Exit INSERT mode
|
|
exitInsertMode(result);
|
|
|
|
vi.clearAllMocks();
|
|
mockVimContext.setVimMode.mockClear();
|
|
|
|
// Execute dot repeat
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '.' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
});
|
|
|
|
describe('db (delete word backward)', () => {
|
|
it('should delete from cursor to start of previous word', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 11]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'b' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordBackward).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should handle count with db', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 18]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '2' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'b' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordBackward).toHaveBeenCalledWith(2);
|
|
});
|
|
});
|
|
|
|
describe('cb (change word backward)', () => {
|
|
it('should change from cursor to start of previous word and enter INSERT mode', () => {
|
|
const testBuffer = createMockBuffer('hello world test', [0, 11]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'b' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordBackward).toHaveBeenCalledWith(1);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
|
|
it('should handle count with cb', () => {
|
|
const testBuffer = createMockBuffer('one two three four', [0, 18]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: '3' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'b' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeWordBackward).toHaveBeenCalledWith(3);
|
|
expect(result.current.mode).toBe('INSERT');
|
|
});
|
|
});
|
|
|
|
describe('Pending state handling', () => {
|
|
it('should clear pending delete state after dw', () => {
|
|
const testBuffer = createMockBuffer('hello world', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Press 'd' to enter pending delete state
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
|
|
// Complete with 'w'
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
// Next 'd' should start a new pending state, not continue the previous one
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
|
|
// This should trigger dd (delete line), not an error
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteLine).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should clear pending change state after cw', () => {
|
|
const testBuffer = createMockBuffer('hello world', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Execute cw
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
// Exit INSERT mode
|
|
exitInsertMode(result);
|
|
|
|
// Next 'c' should start a new pending state
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'c' });
|
|
});
|
|
|
|
expect(testBuffer.vimChangeLine).toHaveBeenCalledWith(1);
|
|
});
|
|
|
|
it('should clear pending state with escape', () => {
|
|
const testBuffer = createMockBuffer('hello world', [0, 0]);
|
|
const { result } = renderVimHook(testBuffer);
|
|
|
|
// Enter pending delete state
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
|
|
// Press escape to clear pending state
|
|
act(() => {
|
|
result.current.handleInput({ name: 'escape' });
|
|
});
|
|
|
|
// Now 'w' should just move cursor, not delete
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'w' });
|
|
});
|
|
|
|
expect(testBuffer.vimDeleteWordForward).not.toHaveBeenCalled();
|
|
// w should move to next word after clearing pending state
|
|
expect(testBuffer.vimMoveWordForward).toHaveBeenCalledWith(1);
|
|
});
|
|
});
|
|
|
|
describe('NORMAL mode escape behavior', () => {
|
|
it('should pass escape through when no pending operator is active', () => {
|
|
mockVimContext.vimMode = 'NORMAL';
|
|
const { result } = renderVimHook();
|
|
|
|
const handled = result.current.handleInput({ name: 'escape' });
|
|
|
|
expect(handled).toBe(false);
|
|
});
|
|
|
|
it('should handle escape and clear pending operator', () => {
|
|
mockVimContext.vimMode = 'NORMAL';
|
|
const { result } = renderVimHook();
|
|
|
|
act(() => {
|
|
result.current.handleInput({ sequence: 'd' });
|
|
});
|
|
|
|
let handled: boolean | undefined;
|
|
act(() => {
|
|
handled = result.current.handleInput({ name: 'escape' });
|
|
});
|
|
|
|
expect(handled).toBe(true);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('Shell command pass-through', () => {
|
|
it('should pass through ctrl+r in INSERT mode', () => {
|
|
mockVimContext.vimMode = 'INSERT';
|
|
const { result } = renderVimHook();
|
|
|
|
const handled = result.current.handleInput({ name: 'r', ctrl: true });
|
|
|
|
expect(handled).toBe(false);
|
|
});
|
|
|
|
it('should pass through ! in INSERT mode when buffer is empty', () => {
|
|
mockVimContext.vimMode = 'INSERT';
|
|
const emptyBuffer = createMockBuffer('');
|
|
const { result } = renderVimHook(emptyBuffer);
|
|
|
|
const handled = result.current.handleInput({ sequence: '!' });
|
|
|
|
expect(handled).toBe(false);
|
|
});
|
|
|
|
it('should handle ! as input in INSERT mode when buffer is not empty', () => {
|
|
mockVimContext.vimMode = 'INSERT';
|
|
const nonEmptyBuffer = createMockBuffer('not empty');
|
|
const { result } = renderVimHook(nonEmptyBuffer);
|
|
const key = { sequence: '!', name: '!' };
|
|
|
|
act(() => {
|
|
result.current.handleInput(key);
|
|
});
|
|
|
|
expect(nonEmptyBuffer.handleInput).toHaveBeenCalledWith(
|
|
expect.objectContaining(key),
|
|
);
|
|
});
|
|
});
|
|
|
|
// Line operations (dd, cc) are tested in text-buffer.test.ts
|
|
|
|
describe('Reducer-based integration tests', () => {
|
|
describe('de (delete word end)', () => {
|
|
it('should delete from cursor to end of current word', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 1, // cursor on 'e' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_end',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "ello" (from cursor to end of word), leaving "h world test"
|
|
expect(result.lines).toEqual(['h world test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(1);
|
|
});
|
|
|
|
it('should delete multiple word ends with count', () => {
|
|
const initialState = {
|
|
lines: ['hello world test more'],
|
|
cursorRow: 0,
|
|
cursorCol: 1, // cursor on 'e' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_end',
|
|
payload: { count: 2 },
|
|
});
|
|
|
|
// Should delete "ello world" (to end of second word), leaving "h test more"
|
|
expect(result.lines).toEqual(['h test more']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(1);
|
|
});
|
|
});
|
|
|
|
describe('db (delete word backward)', () => {
|
|
it('should delete from cursor to start of previous word', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 11, // cursor on 't' in "test"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_backward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "world" (previous word only), leaving "hello test"
|
|
expect(result.lines).toEqual(['hello test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
|
|
it('should delete multiple words backward with count', () => {
|
|
const initialState = {
|
|
lines: ['hello world test more'],
|
|
cursorRow: 0,
|
|
cursorCol: 17, // cursor on 'm' in "more"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_word_backward',
|
|
payload: { count: 2 },
|
|
});
|
|
|
|
// Should delete "world test " (two words backward), leaving "hello more"
|
|
expect(result.lines).toEqual(['hello more']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
});
|
|
|
|
describe('cw (change word forward)', () => {
|
|
it('should delete from cursor to start of next word', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 0, // cursor on 'h' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_word_forward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "hello " (word + space), leaving "world test"
|
|
expect(result.lines).toEqual(['world test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
|
|
it('should change multiple words with count', () => {
|
|
const initialState = {
|
|
lines: ['hello world test more'],
|
|
cursorRow: 0,
|
|
cursorCol: 0,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_word_forward',
|
|
payload: { count: 2 },
|
|
});
|
|
|
|
// Should delete "hello world " (two words), leaving "test more"
|
|
expect(result.lines).toEqual(['test more']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
});
|
|
|
|
describe('ce (change word end)', () => {
|
|
it('should change from cursor to end of current word', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 1, // cursor on 'e' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_word_end',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "ello" (from cursor to end of word), leaving "h world test"
|
|
expect(result.lines).toEqual(['h world test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(1);
|
|
});
|
|
|
|
it('should change multiple word ends with count', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 1, // cursor on 'e' in "hello"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_word_end',
|
|
payload: { count: 2 },
|
|
});
|
|
|
|
// Should delete "ello world" (to end of second word), leaving "h test"
|
|
expect(result.lines).toEqual(['h test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(1);
|
|
});
|
|
});
|
|
|
|
describe('cb (change word backward)', () => {
|
|
it('should change from cursor to start of previous word', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 11, // cursor on 't' in "test"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_word_backward',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should delete "world" (previous word only), leaving "hello test"
|
|
expect(result.lines).toEqual(['hello test']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
});
|
|
|
|
describe('cc (change line)', () => {
|
|
it('should clear the line and place cursor at the start', () => {
|
|
const initialState = {
|
|
lines: [' hello world'],
|
|
cursorRow: 0,
|
|
cursorCol: 5, // cursor on 'o'
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_line',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
expect(result.lines).toEqual(['']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
});
|
|
|
|
describe('dd (delete line)', () => {
|
|
it('should delete the current line', () => {
|
|
const initialState = {
|
|
lines: ['line1', 'line2', 'line3'],
|
|
cursorRow: 1,
|
|
cursorCol: 2,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_line',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
expect(result.lines).toEqual(['line1', 'line3']);
|
|
expect(result.cursorRow).toBe(1);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
|
|
it('should delete multiple lines with count', () => {
|
|
const initialState = {
|
|
lines: ['line1', 'line2', 'line3', 'line4'],
|
|
cursorRow: 1,
|
|
cursorCol: 2,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_line',
|
|
payload: { count: 2 },
|
|
});
|
|
|
|
// Should delete lines 1 and 2
|
|
expect(result.lines).toEqual(['line1', 'line4']);
|
|
expect(result.cursorRow).toBe(1);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
|
|
it('should handle deleting last line', () => {
|
|
const initialState = {
|
|
lines: ['only line'],
|
|
cursorRow: 0,
|
|
cursorCol: 3,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_line',
|
|
payload: { count: 1 },
|
|
});
|
|
|
|
// Should leave an empty line when deleting the only line
|
|
expect(result.lines).toEqual(['']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
});
|
|
|
|
describe('D (delete to end of line)', () => {
|
|
it('should delete from cursor to end of line', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 6, // cursor on 'w' in "world"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_to_end_of_line',
|
|
});
|
|
|
|
// Should delete "world test", leaving "hello "
|
|
expect(result.lines).toEqual(['hello ']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
|
|
it('should handle D at end of line', () => {
|
|
const initialState = {
|
|
lines: ['hello world'],
|
|
cursorRow: 0,
|
|
cursorCol: 11, // cursor at end
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_delete_to_end_of_line',
|
|
});
|
|
|
|
// Should not change anything when at end of line
|
|
expect(result.lines).toEqual(['hello world']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(11);
|
|
});
|
|
});
|
|
|
|
describe('C (change to end of line)', () => {
|
|
it('should change from cursor to end of line', () => {
|
|
const initialState = {
|
|
lines: ['hello world test'],
|
|
cursorRow: 0,
|
|
cursorCol: 6, // cursor on 'w' in "world"
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_to_end_of_line',
|
|
});
|
|
|
|
// Should delete "world test", leaving "hello "
|
|
expect(result.lines).toEqual(['hello ']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(6);
|
|
});
|
|
|
|
it('should handle C at beginning of line', () => {
|
|
const initialState = {
|
|
lines: ['hello world'],
|
|
cursorRow: 0,
|
|
cursorCol: 0,
|
|
preferredCol: null,
|
|
undoStack: [],
|
|
redoStack: [],
|
|
clipboard: null,
|
|
selectionAnchor: null,
|
|
};
|
|
|
|
const result = textBufferReducer(initialState, {
|
|
type: 'vim_change_to_end_of_line',
|
|
});
|
|
|
|
// Should delete entire line content
|
|
expect(result.lines).toEqual(['']);
|
|
expect(result.cursorRow).toBe(0);
|
|
expect(result.cursorCol).toBe(0);
|
|
});
|
|
});
|
|
});
|
|
});
|