import { describe, it, expect, beforeEach, afterEach } from '@jest/globals';
import { mkdtemp, writeFile, readFile, rm } from 'node:fs/promises';
import { join } from 'node:path';
import { tmpdir } from 'node:os';
import { applyEdits, moveFile } from '../../src/edit-applier/index.js';
import type { FileEdit } from '../../src/types/index.js';
describe('applyEdits', () => {
let tempDir: string;
beforeEach(async () => {
tempDir = await mkdtemp(join(tmpdir(), 'ts-refactor-test-'));
});
afterEach(async () => {
await rm(tempDir, { recursive: true, force: true });
});
it('should apply a single text edit to a file', async () => {
const filePath = join(tempDir, 'test.ts');
const originalContent = 'const x = 1;\nconst y = 2;\n';
await writeFile(filePath, originalContent);
const edits: FileEdit[] = [
{
filePath,
textEdits: [
{
start: { line: 1, offset: 7 },
end: { line: 1, offset: 8 },
newText: 'foo',
},
],
},
];
await applyEdits(edits);
const newContent = await readFile(filePath, 'utf-8');
expect(newContent).toBe('const foo = 1;\nconst y = 2;\n');
});
it('should apply multiple edits to a file in reverse order', async () => {
const filePath = join(tempDir, 'test.ts');
const originalContent = 'const x = 1;\nconst y = 2;\n';
await writeFile(filePath, originalContent);
const edits: FileEdit[] = [
{
filePath,
textEdits: [
{
start: { line: 1, offset: 7 },
end: { line: 1, offset: 8 },
newText: 'foo',
},
{
start: { line: 2, offset: 7 },
end: { line: 2, offset: 8 },
newText: 'bar',
},
],
},
];
await applyEdits(edits);
const newContent = await readFile(filePath, 'utf-8');
expect(newContent).toBe('const foo = 1;\nconst bar = 2;\n');
});
it('should throw if file does not exist', async () => {
const filePath = join(tempDir, 'nonexistent.ts');
const edits: FileEdit[] = [
{
filePath,
textEdits: [
{
start: { line: 1, offset: 1 },
end: { line: 1, offset: 1 },
newText: 'test',
},
],
},
];
await expect(applyEdits(edits)).rejects.toThrow('File does not exist');
});
});
describe('moveFile', () => {
let tempDir: string;
beforeEach(async () => {
tempDir = await mkdtemp(join(tmpdir(), 'ts-refactor-test-'));
});
afterEach(async () => {
await rm(tempDir, { recursive: true, force: true });
});
it('should move a file to a new location', async () => {
const oldPath = join(tempDir, 'old.ts');
const newPath = join(tempDir, 'new.ts');
await writeFile(oldPath, 'const x = 1;');
await moveFile(oldPath, newPath);
const content = await readFile(newPath, 'utf-8');
expect(content).toBe('const x = 1;');
});
it('should create parent directories if needed', async () => {
const oldPath = join(tempDir, 'old.ts');
const newPath = join(tempDir, 'subdir', 'new.ts');
await writeFile(oldPath, 'const x = 1;');
await moveFile(oldPath, newPath);
const content = await readFile(newPath, 'utf-8');
expect(content).toBe('const x = 1;');
});
it('should throw if source file does not exist', async () => {
const oldPath = join(tempDir, 'nonexistent.ts');
const newPath = join(tempDir, 'new.ts');
await expect(moveFile(oldPath, newPath)).rejects.toThrow(
'Source file does not exist'
);
});
});
